Patent Publication Number: US-9421659-B2

Title: Carrier device for handling a lens

Description:
CROSS REFERENCE TO RELATED APPLICATIONS 
     This application is a continuation application of international patent application PCT/EP2013/053839, filed Feb. 26, 2013 which designates the United States and claims priority from U.S. Provisional Application No. 61/603,591 filed Feb. 27, 2012, and German patent application 10 2012 202 965.6 filed Feb. 27, 2012. The present continuation application claims priority to each of the above applications and incorporates herein the entire contents thereof by reference. 
    
    
     FIELD OF THE INVENTION 
     The invention relates to a carrier device for handling a lens which is received therein and which has a lateral edge, in particular for handling an eyeglass lens in a machining or finishing process. The carrier device has a main body, and it has a connecting member for releasably connecting the main body to the received lens. The connecting member forms, with the main body, a protective cover surrounding the lateral edge of the received lens and a surface of the received lens directed toward the main body. Moreover, the invention also relates to a method for machining or finishing a lens, in particular an eyeglass lens, in which method the lens, in a packaging system in the form of a carrier device with an eyeglass lens, undergoes a process step or a plurality of process steps. 
     BACKGROUND OF THE INVENTION 
     Within the meaning of the invention, a lens is to be understood as a glass or plastic body that has two optically active surfaces, that is, light-refracting surfaces, lying opposite each other. A lens within the meaning of the invention is in particular an eyeglass lens designed to be fitted in an eyeglass frame. The term eyeglass lens also extends in the present case to what are called eyeglass lens blanks, that is, a usually prefabricated piece of material for producing a lens in any state prior to completion of the surface machining, and also to what are called semi-finished products in the form of a lens blank with only one surface that has been fully optically machined. Such semi-finished products are also referred to as semi-finished eyeglass lenses. 
     Lenses, in particular eyeglass lenses, are often finished by coating them with lacquers. Here, the problem arises that often only a front or back surface of the lens, for example, only the lens surface directed away from the eye of an eyeglass wearer or the lens surface directed toward the eye, is intended to be coated with a lacquer, without the other surfaces of the lens coming into contact with this lacquer. 
     A carrier device of the type mentioned at the outset is known from EP 1 887 586 A1. The latter proposes a handling procedure in which a lens with a lens surface is received on a main body made of a thermoplastic, for example, of polyurethane (PUR). The lens surface received on the main body is for this purpose covered with a protective film. This protective film acts as an adhesive layer by which the lens, with the lens surface in question, is secured on the main body after a heating operation. 
     U.S. Pat. No. 8,613,982 describes a device for finishing eyeglass lenses, in which an eyeglass lens lies with its back surface on the front end of a rotating shaft. For finishing by chemical wet-coating, the front surface of the eyeglass lens rotating with the shaft is coated with a coating lacquer. In order to avoid a situation where the lacquer, on account of the rotation movement of the eyeglass lens, reaches the lateral edge surface and back surface thereof, the lacquer is caught in the edge area of the eyeglass lens with a spatula. 
     SUMMARY OF THE INVENTION 
     An object of the invention is to make available a carrier device which permits handling of a lens in a production facility and in which a lens surface can be machined, in particular finished, in a process step or in a plurality of process steps, and the other lens surface is protected against soiling and contamination. 
     This object is achieved by a carrier device which is of the type mentioned at the outset and in which the connecting member is releasably connected to the main body. 
     This allows for using one and the same main body with different connecting members which are adapted to the geometry of a lens in a carrier system for a lens to be processed in an installation for lens processing. 
     In a carrier device according to the invention, it is possible to machine and finish lenses having a lens surface that cannot be blocked, as a result of which it is not possible, or is possible only with very great effort, to receive and hold the lens via this lens surface. In particular, lens surfaces provided with a hydrophobic surface coat are unsuitable for blocking. By contrast, the carrier device according to the invention means that lenses with an already machined lens surface, in particular with a lens surface that has already been fully coated in elaborate finishing processes, can be handled with a protective cover surrounding this lens surface and also the edge of the lens. This has the effect that a lens received in the carrier device can be finished by chemical wet-coating, and, in so doing, the surface of the lens directed toward the main body is protected against soiling by the lacquers and solutions used in the chemical wet-coating. 
     The connecting member can serve to hold a lens in the carrier device. A lens can thus be received in the carrier device in such a way that a coated lens surface that faces into the hollow space is not touched. 
     It is in particular a concept of the invention that the protective cover forms a hollow space together with a lens received in the carrier device. Since the hollow space is closed off and/or sealed, a lens received in a carrier device can be machined or finished by means of the carrier device as a whole being immersed into an immersion bath composed of lacquers, solutions or cleaning liquids, in such a way that the lens surface facing into the interior of the hollow space does not come into contact with these liquids. 
     However, it is also a concept of the invention to design the main body with at least one opening for feeding fluid into the hollow space or removing fluid from the hollow space. This measure means for example that, when a lens is received in the carrier device, an inert gas can be applied to the surface of the lens facing toward the main body, while the lens surface lying opposite this lens surface is finished in a chemical process step. 
     It is in particular a concept of the invention that the opening in the main body of a carrier device can be alternately released and blocked. In such a carrier device, a fluid located in the hollow space can then be replaced while a surface of a lens received in the carrier device is being machined. 
     If the main body has at least one further opening, through which fluid can be removed from the hollow space or fed into the hollow space, it is possible, when a lens is received in the carrier device, to use a stream of fluid to cool the surface facing toward the main body while the lens is being finished. To ensure that the stream of fluid can be controlled, it is advantageous if the further opening can be alternately released or closed. 
     It is advantageous to design the main body with an attachment member that permits the attachment of the main body to a coupling member of a unit of a machining and/or conditioning system in a processing station of a production facility. Such a unit in a machining and/or conditioning system can, for example, be a spindle and/or a mechanism for feeding fluid through an opening formed in the main body. The attachment member is expediently designed as a coupling part, preferably as part of a quick-action coupling, as part of a bayonet catch or as part of a snap-fit connection, which cooperates with a coupling member that is provided on the unit of the machining and/or conditioning system and that is designed as part of a quick-action coupling, as a mating part of a bayonet catch or as a mating part of a snap-fit connection. This ensures the rapid exchange of carrier devices and machining and/or conditioning systems in a production facility for eyeglass lenses. The attachment member can also be a depression or a recess in the main body, permitting a force-fit connection, for example, a vacuum connection by suction with a suction cup, and/or a form-fit connection with a corresponding machining system and/or conditioning system unit. In particular, it is possible to provide the attachment member in the form of a thread in the main body. 
     It is in particular a concept of the invention that the attachment member defines a machine interface, with a positional reference point fixed on the main body, for a machining and/or conditioning system. This measure dispenses with the need for multiple measurements of the topography and the position of eyeglass lenses in a production facility with different machining and/or conditioning systems. 
     It is also a concept of the invention to design the carrier device with a support member for supporting the lens via the surface thereof directed toward the main body. The support member has a portion on which the lens surface directed toward the main body can be placed. A force introduced into this portion from the lens is transferred into the main body by means of the support member. 
     This has the effect that a lens received in the carrier device can be heated in a thermal cycle to beyond the glass transition temperature T G  without undergoing excessive deformation on account of its own weight. It is thus possible in particular for the carrier device to receive eyeglass lenses having a very thin lens thickness, since these can be stabilized in the carrier device by means of the support member. 
     The support member can be a spring secured on the main body, for example, an annular spring which, when a lens is received in the carrier device, bears on the lens surface facing into the hollow space. With a large number of these support members in the carrier device, it is possible to ensure that, when a lens is received in the carrier device, the lens surface directed toward the main body is subject to supporting forces that are uniformly distributed across the surface. 
     The support member can also be a spring with a spring body which is secured on the main body and which has at least one spring tongue which extends from a retaining portion to the lens surface directed toward the main body, and with which the lens surface directed toward the main body is supported on a convexly curved portion. If the spring is made of a plastic, in particular of polytetrafluoroethylene (PTFE), it is possible to ensure that, when a lens is received in a carrier device, the surface which is bearing on the spring is not mechanically impaired. 
     The support member can also have a ram, guided in a linearly movable manner on the main body, and can comprise a spring mechanism which, when subjected to a force acting in the direction of the main body, introduces a supporting force into the ram in order to support the lens on a surface directed toward the main body. It is also advantageous here if the ram is made of a plastic, in particular of PTFE, in order to ensure that a lens received in a carrier device does not suffer undesired deformation or mechanical damage. 
     In order to cushion the ram, the spring mechanism can be designed as a mechanical spring mechanism with a helical spring. As an alternative to this, it is also possible to design the spring mechanism as a pneumatic spring mechanism, in which there is a gas cushion acting on a piston. In addition, it is possible to design the spring mechanism as a hydraulic spring mechanism that contains a hydraulic liquid acting on a piston. 
     The support member in a carrier device according to the invention can also be a hollow body received on the main body, made preferably of PTFE and having a wall designed as a bellows. This hollow body has a portion, preferably designated as a suction cup, on which a lens in the carrier device can bear via a surface facing toward the main body. 
     A carrier device can also contain, as support member, a gel cushion which is received on the main body and which is filled with a gel material, for example, with agar-agar or with water to which acrylic polymer crystals have been mixed. As the gel material in a gel cushion, it is particularly advantageous to use a magnetostrictive or ferromagnetic gel material that hardens when subjected to a magnetic field. 
     It is thus possible, in an installation for finishing lenses, for example, in a production facility for eyeglass lenses, to adjust the mechanical properties of the gel material for a specific finishing process and to choose different properties for different finishing steps. 
     It is also a concept of the invention for a support member, in a carrier device according to the invention, to be in the form of a plastics body made of UV adhesive. It is in particular a concept of the invention for the support member, in a carrier device according to the invention, to be in the form of a fluid volume which is arranged in the carrier device between the main body and the lens and which is subjected to an overpressure. To allow the overpressure in the hollow space to be adjusted, it is advantageous if the main body comprises a valve for subjecting the fluid volume to an overpressure. 
     A suitable support member in a carrier device according to the invention is also a ball cushion having an envelope which is filled with a multiplicity of balls. This envelope is attached to a valve in the main body, via which valve a gas volume can be suctioned off from the envelope in order to generate an underpressure, such that the ball cushion hardens. The main body of a carrier device according to the invention can also have at least one opening for feeding fluid into the hollow space or for removing fluid from the hollow space. In particular, the main body can have an opening for feeding gaseous fluid into the hollow space, and a further opening for removing fluid from the hollow space. By means of this measure, the hollow space formed in a carrier device according to the invention, between a lens received therein and the main body, can be flushed with a fluid in order to remove heat from the lens surface facing into the hollow space or in order to heat the lens by delivering heat through this surface. 
     The support member in a carrier device according to the invention can also be a PTFE leaf spring positioned on the main body of the carrier device, a PTFE spring-thrust piece secured there, an elastomer buffer arranged on the main body, a foam ring positioned on the main body, preferably mounted on the main body, or else a gas balloon arranged on the main body. 
     The connecting member in a carrier device according to the invention can also be a clamping ring that engages around the lateral edge surface of the lens. It is advantageous if this clamping ring is flush with the edge of the lens surface directed away from the main body. The clamping ring preferably has a front face which, when the lens is received in the carrier device, continuously adjoins the lens surface directed away from the main body. The clamping ring is preferably made of plastic. The inventors have found that thermo-plastic elastomers in particular are highly suitable as the material for a clamping ring, because in this way the hollow space in the carrier device can be closed with a good sealing action. However, it is likewise possible to provide a clamping ring made from a metal or to make the clamping ring from the material PFTE. 
     In order to ensure that the clamping ring and the lens surface directed away from the main body are continuous, it is advantageous to measure the carrier device with a lens received therein and then to cut the clamping ring to size in the carrier device. This measure in fact permits a very exact adaptation of the clamping ring to the edge of the lens surface directed away from the main body. In particular, this measure permits the exact adaptation of the clamping ring to the edge of a lens surface designed as a free-form surface, which has no rotational symmetry and whose edge does not have a circular shape, but is instead elliptic, for example. 
     According to the invention, the connecting member can also be designed as an adhesive tape placed around the lateral edge of the lens. To permit stable securing of the lens on the main body, it is advantageous if the adhesive tape placed around the lateral edge of the lens is subjected to a tensile stress. In this way, the adhesive tape forms a narrowed contour between the main body and the lateral edge of a received lens. Extensive tests have shown that a tensile stress is useful here that causes a 10% stretching of the adhesive tape, preferably a 3 to 6% stretching of the adhesive tape. The inventors have discovered that a lens can be arranged with great stability in a carrier device if the adhesive tape is placed 1.5 to 2 times, preferably 1.8 times, around the lateral edge surface of the lens with this tensile stress. 
     If the narrow side of the adhesive tape placed around the lens continuously adjoins, preferably continuously and tangentially adjoins, the lens surface directed away from the main body, that is, is not only flush with the edge of this lens but also more or less continues the profile of the lens surface directed away from the main body, it is possible, by means of rotational coating, that is, spin coating of a lens received in a carrier device, that this surface can be covered with high-quality lacquer layers that have uniform thickness and that do not have any undesired gaps in the lacquer at the lens edge. Rotational coating or spin coating is generally understood here as a method of coating a substrate, in which method a liquid is applied for the coating while the substrate rotates about an axis, so that the applied liquid spreads out under the effect of the centrifugal force and forms a uniform coating film on the substrate. 
     In order to ensure that the connecting member, for example, the adhesive tape placed around the lens, exactly and continuously adjoins the lens surface directed away from the main body, it is expedient to precisely measure the carrier device, with a lens received therein, in order then to cut the connecting member to size in the carrier device according to the measurement result. According to the invention, this cutting to size can be done in particular by means of a cutting mechanism, with removal of a portion which, on the lateral edge of a lens, protrudes beyond the edge of the surface directed away from the main body. 
     It is a concept of the invention to cut the connecting member to size using a cutting knife which, during a rotational relative movement of main body and cutting mechanism, bears tangentially on the surface of the eyeglass lens directed away from the main body. By means of this measure, it is possible to create a continuous transition from a front surface of the connecting member, adjoining a lens in a carrier device, to the lens surface directed away from the main body. 
     It is expedient if the main body of the carrier device is provided with a seat for the engagement of a centering mandrel, or if it has a centering mandrel for engagement in a centering-mandrel seat formed on a spindle. In this way, a lens received in a carrier device according to the invention can be easily centered on a spindle. 
     The arrangement of an information carrier on that side of the main body facing into the hollow space makes it possible, using a suitable device, to read out information from the information carrier and/or write in information into the information carrier through a lens received in a carrier device according to the invention. 
     A lens received in a carrier device according to the invention forms, with the carrier device, a packaging system in which lenses can safely undergo various successive machining and/or finishing processes in an installation. 
     In such a packaging system, a lens with a lens surface protected against contamination and soiling can in fact be moved through one or more processing stations by a computer-controlled transport device. 
     A carrier device according to the invention permits the machining or finishing of lenses in a process in which the hollow space, formed between the main body and a lens received in the carrier device, is flushed with a fluid, in particular with air, in order to remove heat from the lens surface directed toward the main body or to introduce heat through this surface into the lens. 
     Extensive tests have shown that, if a lens is received in a carrier device according to the invention, and if the connecting member covers the lateral edge surface of the lens in such a way that the connecting member is flush with the edge of the lens surface directed away from the main body, it is possible to produce a homogeneous and uniformly distributed layer of lacquer by means of spin coating, if the packaging system composed of carrier system and lens is exposed to coating fluid, for example, to lacquer, with a vertical rotation axis extending through a center of the lens, for example, a vertex of an optically active surface of the lens, at a speed of rotation of between 300 rpm and 800 rpm, preferably between 400 rpm and 600 rpm. 
     The coating fluid, expediently in the form of liquid droplets or in the form of a liquid jet, is applied in the direction of the rotation axis to a vertex of the surface or to an area lying around the vertex in the surface. However, it is also a concept of the invention to apply coating fluid to a lens in a packaging system composed of carrier device and lens by a process in which the packaging system is rotated about a rotation axis which extends through a vertex of a surface of the lens, and this surface of the lens is thereby exposed to one or more fluid jets of coating fluid. Moreover, it is a concept of the invention for a packaging system composed of carrier device and lens to be rotated, with the lens being immersed obliquely into a coating fluid as far as a vertex, about a rotation axis which extends through this vertex of the surface of the lens, in order to apply a coating to this surface of the lens. 
     In a packaging system composed of carrier device and lens, it is possible for a lens to undergo various process steps, for example, UV hardening, post-hardening with ambient air, high-voltage activation or IR drying. It is thereby possible, in such a process step, for the hollow space to be flushed at least partially with a fluid, for example, with air, in order to remove heat from the lens surface directed toward the main body. 
     In a production facility for lenses, it is possible for a lens, in a packaging system composed of a carrier device according to the invention and of a lens, to undergo the following process steps in particular: cleaning a surface of the lens; flushing a surface of the lens, in particular flushing with water, in particular flushing with fully deionized water of which the conductance value L is preferably L&lt;0.5 μS, and which expediently has a temperature T in the range of 30° C.≦T≦45° C. or also 30° C.≦T≦60° C.; polishing a surface of the lens with a cleaning agent; mechanically brushing a surface of the lens; activating the substrate of a surface of the lens with alkaline solution; high-pressure cleaning of a surface of the lens using a liquid that can be applied at a high pressure P, which can be between 120 bar and 180 bar or even up to 200 bar or more; drying a surface of the lens in a warm air stream, which can have a temperature T of up to T=80° C.; measuring the enveloping surface area and the z-height of a surface of the lens; priming a surface of the lens with adhesion promoter; drying a surface of the lens in a conditioned laminar flow, that is, a laminar flow of a gas which has a defined, preferably regulated moisture content and of which the temperature T is exactly set, preferably regulated; applying functional lacquer to a surface of the lens; UV-hardening of functional lacquer on a surface of the lens; post-hardening of functional lacquer on a surface of the lens with ambient air; high-voltage activation of functional lacquer on a surface of the lens, by means of gas discharges that are generated at a voltage U with U≈40 kV or more; activation of functional lacquer on a surface of the lens with alkaline solution; applying protective lacquer to a surface of the lens; IR-drying of the lens; post-hardening of protective lacquer on a surface of the lens with ambient air. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The invention will now be described with reference to the drawings wherein: 
         FIG. 1  shows a three-dimensional section of a first carrier device with an eyeglass lens; 
         FIG. 2  shows a machining and/or conditioning system with a main body; 
         FIG. 3  shows an adhesive tape for connecting main body and eyeglass lens in a carrier device; 
         FIG. 4  shows a carrier device in an arrangement for applying lacquer by means of spin coating; 
         FIGS. 5A to 5F  show the application of lacquer, by means of spin coating, to an eyeglass lens received in a carrier device; 
         FIG. 6  shows an installation for equipping a carrier device with an eyeglass lens; 
         FIG. 7  shows an installation for finishing an eyeglass lens by chemical wet-coating; 
         FIG. 8  shows a partial section of a coated eyeglass lens in a carrier device; 
         FIG. 9  shows a carrier device with a clamping ring for securing an eyeglass lens on a main body; 
         FIG. 10  shows a carrier device with a cooling mechanism for an eyeglass lens; 
         FIGS. 11 to 17  show further carrier devices with an eyeglass lens; 
         FIG. 18  shows the spray-coating of an eyeglass lens received on a carrier device; and, 
         FIG. 19  shows the immersion-coating of an eyeglass lens in a carrier device. 
     
    
    
     DESCRIPTION OF THE PREFERRED EMBODIMENTS OF THE INVENTION 
       FIG. 1  shows carrier device  10  with a lens in the form of an eyeglass lens  12 , which has a negative refractive power. The carrier device  10  serves for the handling of the eyeglass lens  12  in a machining process, in particular a finishing process in a production facility for eyeglass lenses. The carrier device  10  is suitable in particular for receiving an eyeglass lens in a plurality of successive production processes, in particular finishing processes. The eyeglass lens  12  can be a plastic eyeglass lens, for example. However, the carrier device  10  can also in principle receive eyeglass lenses made of another lens material, for example, of mineral glass. The carrier device  10  is also suitable for receiving eyeglass lenses whose refractive power is positive. 
     In the carrier device  10 , the eyeglass lens  12  is secured on a main body  14 . The main body  14  is designed as a flat, mechanically stable plate with a thickness d G . The main body  14  is made of aluminum. This material is easy to machine, comparatively inexpensive and, for process steps in the field of eyeglass lens production, has sufficient chemical, thermal and mechanical stability. However, the main body can in principle also be made of another suitable material that has sufficient chemical, thermal and mechanical stability for finishing processes in eyeglass lens production. The main body  14  has a lateral edge surface  16  with a circumferential contour  18 . The eyeglass lens  12  has a planar edge  21  with a circumferential contour  20 . The circumferential contour  18  corresponds to the circumferential contour  20  of the lateral edge  21  of the eyeglass lens  12 . That is, the circumferential contour  20  of the lateral edge  21  of the eyeglass lens  12  can be transferred by vertical projection of the eyeglass lens  12  in the direction of the axis  22  into the contour of the edge  18  of the lateral edge surface  16  of the main body  14 . 
     The eyeglass lens  12  shown in  FIG. 1  has a circumferential contour  20  that is rotationally symmetrical to the axis  22  of the eyeglass lens  12 . The diameter of the circumferential contour  20  of the eyeglass lens is 60 mm here. This is a usual diameter for eyeglass lens blanks and semi-finished eyeglass lenses, from which eyeglass lenses are produced in eyeglass lens production facilities. 
     The main body  14  is rotationally symmetrical to the axis  22 . The diameter D G  of the main body  14  is adapted to the diameter D B  of the eyeglass lens  12 . However, in accordance with other usual diameters for the circumferential contour of eyeglass lenses that are machined in eyeglass lens production facilities, the diameter D G  of the main body  14  can also be 55 mm, 60 mm, 65 mm, 70 mm, 75 mm or 80 mm. It is possible in principle to form the main body  14  with any desired diameter or to design it with a circumferential contour  20  that corresponds to an elliptic contour or other contour of an eyeglass lens that is to be machined in a production facility for eyeglass lenses. 
     The eyeglass lens  12  is attached to the main body  14  by a connecting member  24 . The connecting member is an adhesive tape  24 . The adhesive tape  24  has a portion  26  which bears with a force fit on the edge  21  of the eyeglass lens  12 . The surface of the lateral edge  21  of the eyeglass lens  12  is in this case completely covered with the adhesive tape  24 . In this way, the main body  14  and the adhesive tape  24  form a protective cover  15 , which surrounds the eyeglass lens  12  on the edge  21  and the surface  30  directed toward the main body  14 . With the surface  30  facing toward the main body  14 , and with the adhesive tape  24  and the main body  14 , the eyeglass lens  12  defines a closed-off hollow space  32  in the carrier device  10 . Therefore, in the carrier device  10 , the lateral edge surface  18  and the surface  30  of the eyeglass lens  12  are protected against contamination by substances to which the surface  34  of the eyeglass lens  12  is exposed in production and finishing processes in a production facility for eyeglass lenses. The main body  14  has an attachment member  36  designed as a seat for the engagement of a coupling member, which has a centering mandrel, on a rotating spindle of a machining and/or conditioning system. This has the effect that the carrier device  10  can be automatically centered on the rotating spindle. A rotation movement of the rotating spindle can be transferred to the main body  14  via the attachment member  36 . 
     The attachment member  36  ensures that the carrier device  10 , with an eyeglass lens received therein, is not automatically thrown off by the effect of the centrifugal force during rapid rotation on the spindle. 
       FIG. 2  shows the main body  14  of the carrier device  10  with a driven spindle in a machining and/or conditioning system  19  for an eyeglass lens. For driving the spindle, the machining and/or conditioning system  19  comprises an electric motor  27 , which can be controlled by a control mechanism  29 . 
     With the electric motor  27 , the spindle  17  can be rotated about a rotation axis  31 . The spindle  17  has a coupling member  41  on a workpiece-side portion  33 . The coupling member  41  has a plane front face  43  and is designed with a groove  45  in which is arranged a ring  47  made of an elastomer material. The coupling member  41  forms a machine-side interface with a machine-side positional reference point  53 , which lies in the plane front face  43  of the spindle  17 , on the rotation axis  31  thereof. 
     The attachment member  36  of the main body  14  can be brought into engagement with the coupling member  41  of the spindle  17 , by means of the main body  14  being plugged onto the workpiece-side portion  33  of the spindle  17 . In this way, a coupling connection of the spindle  17  to the main body  14  is created with which a rotation movement of the spindle  17  can be transferred to the main body  14 . With the attachment member  36  of the main body  14 , a positional reference point  55  fixed on the main body is defined. When the attachment member  36  of the main body is brought into engagement with the coupling member  41  of the spindle  17 , the position of the positional reference point  55  fixed on the main body is coordinated unambiguously with the machine-side positional reference point  53 . The attachment member  36  thus defines a machine interface of the main body  14  for the machining and/or conditioning system  19 . For a carrier system received with the main body  14  on the spindle  17 , this means that the radial position and the z-position of an eyeglass lens received by the carrier system can be indicated in a machine-fixed coordinates system  57 , if the position of the eyeglass lens in a carrier device relative to the positional reference point  55  fixed on the main body is known. 
     When the radial position r and the z-position of an eyeglass lens have been measured after arrangement in a carrier device, it is possible, for example, for the eyeglass lens, with the main body of the carrier device, to be received, in a production facility, on corresponding coupling members of machining and/or conditioning stations and to be successively machined in different stations, thus dispensing with the need for time-consuming multiple measurements of the height and radial position of an eyeglass lens. 
     The carrier device  10  shown in  FIG. 1  contains several support members  38 . The support members  38  are located in the hollow space  32  between the eyeglass lens  12  and the main body  14 . By means of the support members  38 , the eyeglass lens  12  is supported against the main body  14 . The support members  38  have an annular spring  40 , which is secured on the main body  14  by a clamping shoe  44  guided on a pin  42 . A clamping force can be applied to the clamping shoe  44  by an Allen screw  46 . With the support members  38 , the eyeglass lens  12 , on the surface  30  directed toward the main body  14 , is supported in an area between the edge of the eyeglass lens and the axis  22 . 
     The support members  38  have the effect that an eyeglass lens  12  received in the carrier device  10  is not plastically deformed, or is only very slightly plastically deformed, when it is heated in the range of the so-called glass transition temperature T G . The glass transition temperature T G  of glass material from which eyeglass lenses of plastic are produced is usually of the order of T G ≈110° C. If glass material is heated to the range of the glass transition temperature, this then has the consequence that plastic deformation is caused by even very small mechanical loads and by the inherent weight. 
     The annular spring  40  is designed such that it adapts itself to an eyeglass lens  12  received in the carrier device  10  and bears thereon over a large contact zone. The spring force to which the eyeglass lens  12  is subjected is low. This measure has the effect that the contact pressure, generated by the contact of the surface  30  of the eyeglass lens  12  with a support member  38 , is small on that side of the eyeglass lens  12  facing into the hollow space  32 . Thus, when an eyeglass lens  12  received in the carrier device  10  is subjected in a finishing process to a thermal cycle up to the glass transition temperature T G  or beyond, this ensures that no impressions caused by a support member  38  are made on the eyeglass lens  12 . 
     It will be noted that the contact of a support member with an eyeglass lens, which is subjected to a thermal cycle or which bears for a long period of time on the eyeglass lens under atmospheric conditions, for example at normal room temperature, can in principle contaminate the eyeglass lens on account of soiling, in particular diffusion processes or chemical reactions on a surface of the eyeglass lens. Such contamination of the eyeglass lens, on a surface of the eyeglass lens, generally has the result that the eyeglass lens surface in question can no longer be finished by vapor deposition or chemical wet-coating. Such an eyeglass lens then constitutes costly reject material, which in some cases also has to be disposed of at some expense. 
     The material of the annular spring  40  of a support member  38  is therefore chosen such that an eyeglass lens  12  received in a carrier device  10  is not chemically contaminated on the surface  30  when the eyeglass lens  12  is in contact with the annular spring  40  of a support member  38  and is subjected to a thermal cycle. PTFE in particular is a suitable material for an annular ring  40  since it makes it possible to avoid a chemical contamination of eyeglass lenses. 
     On its side facing into the hollow space  32 , the main body  14  has a surface portion  49  with an information carrier  50 . The information carrier  50  is an adhesive strip with a data matrix code  51 . However, as the information carrier  50  in the hollow space  32  of the carrier device  10 , it is also possible, for example, to arrange an adhesive strip with a barcode or also a chip for radio frequency identification (RFID chip). The information carrier  50  contains information concerning the eyeglass lens  12 , for example, information concerning the topography of the optically active surfaces ( 30 ,  34 ) of the eyeglass lens  12  and information concerning an intended or existing coating of these surfaces. The information carrier  50  can also contain a serial number with which the eyeglass lens  12  can be clearly identified in a production facility for eyeglass lenses in which several tens of thousands of eyeglass lenses are produced on a daily basis. 
     The arrangement of the information carrier  50  on that side of the main body  14  facing into the hollow space  32  makes it possible to read this information using a suitable reading device (not shown), for example, with light, through the surface  34  and the glass body of the eyeglass lens  12 . 
     It is advantageous for the information carrier  50  to store information, for example, concerning the radial position r and the z-position of an eyeglass lens in a carrier device after a corresponding measurement has been carried out. This means that the relevant r-position and z-position of an eyeglass lens in a production facility does not have to be recorded in exhaustive measuring operations on different conditioning and/or machining systems. In such systems, it is then possible for the information concerning the r-position and z-position of an eyeglass lens  12  to be read out from the information carrier  50  with a reading device and fed to a control device with which a conditioning or machining step for a surface  34  of the eyeglass lens  12  is controlled. 
       FIG. 3  shows the adhesive tape  24  acting as the connecting member between eyeglass lens and main body in the carrier system  10  from  FIG. 1 . The adhesive tape  24  is preferably an adhesive tape of the type 3M Thermo-Bond Film  845  from the company 3M. This adhesive tape is composed of a thermoplastic which is produced on the basis of modified polyolefin. This adhesive tape has an inwardly facing adhesive layer with a thickness of ca. 0.1 mm and a tape thickness of approximately 0.08 mm. The adhesive tape  24  in the carrier system  10  is also suitably an adhesive tape of the type 6263-54 from the company Sliontec, which is based on a polyurethane film (PET film) coated by means of vapor deposition. 
     Extensive tests have shown that if, in the carrier device  10  from  FIG. 1 , the adhesive tape is placed 1.6 times to 1.95 times, preferably, as can be seen in  FIG. 3 , 1.8 times around the main body and an eyeglass lens, good edge stiffness can be achieved for a packaging system in the form of an eyeglass lens received in a carrier device  10 . The edge stiffness can be increased if the length of the adhesive tape  24  is stretched by 3% to 6% during application. With such stretching of the adhesive tape  24 , a narrowing is formed between the edge surface  21  of the eyeglass lens  12  and the edge surface  16  of the main body  14 . 
     The narrow side  25  of the adhesive tape  24  is attached tangentially and continuously to the surface  34  of the eyeglass lens  12 . The narrow side  25  of the adhesive tape  24  is flush with the edge  35  of the surface  34 . Like the surface  34  of the eyeglass lens  12 , the height of the narrow side  25  of the adhesive tape  24  drops away to the outside as the distance from the axis  22  increases. In this way, an arrangement is created which is particularly suitable for finishing the surface  34  of the eyeglass lens  12  by means of spin coating. If the eyeglass lens  12  is fixed with the adhesive tape  24  in the carrier device  10  such that, as can be seen in  FIG. 1 , the vertex  39  of the surface  34  lies on the axis  22  and the tangential face of the surface  34  is horizontal at this point, this means that a lacquer, dropped on in the area of the vertex  39  on the surface  34  of the eyeglass lens  12 , is uniformly distributed during rotation of the carrier device  10  with the eyeglass lens  12  about the axis  22 . 
     By contrast, if the cross section of an eyeglass lens  12  received in the carrier device  10  is not rotationally symmetrical, the eyeglass lens  12  is advantageously fixed on a main body  14  in such a way that the edge  20  (shown in  FIG. 1 ) of the eyeglass lens  12  lies at the center in a plane perpendicular to the vertical axis  22 . 
       FIG. 4  shows the carrier device  10  with an eyeglass lens  12  in a mechanism  50 ′ for applying a lacquer  52  by means of spin coating. In the mechanism  50 ′, the carrier device  10  is received on a shaft  56  which rotates according to the arrow  53  about the axis  54  and which engages with a centering mandrel  58  in the recess  36  of the main body  14 . 
     On the shaft  56 , the carrier device  10  with the eyeglass lens  12  is rotated about the vertex  39  of the surface  34  of the eyeglass lens  12 . The lacquer fed from a dosing system  60  through a hollow needle  62  is uniformly distributed on the eyeglass lens  12  on account of the effect of the centrifugal force. For this purpose, the eyeglass lens  12  received in the carrier system  10  is rotated by means of the shaft  56  in such a way that the lacquer  52  dropped from the hollow needle  62  onto the vertex  39  of the surface  34  of the eyeglass lens  12  is carried outward by the centrifugal forces. The speed of rotation of the shaft  56  is set such that a layer  64  with a constant uniform layer thickness d s  of the lacquer  52  forms on the surface  34  of the eyeglass lens  12 . For the desired constant uniform layer thickness d s  of the lacquer  52 , it is important that the liquid lacquer  52  is driven by the centrifugal forces over the edge of the surface  34  of the eyeglass lens  12 . 
     Below, with reference to  FIG. 5A  to  FIG. 5F , the effect of the speed of rotation of the eyeglass lens on the geometry of a lacquer layer applied to an eyeglass lens  12  by means of spin coating is explained. 
       FIG. 5A  shows a portion of a carrier device  10  with an eyeglass lens  12  on which a layer  64  of lacquer  52  is applied by spin coating at a very low speed of rotation, which lies in a range of between 60 rpm and 100 rpm. On account of this low speed of rotation, the lacquer  52  is not distributed uniformly on the surface  34  of the eyeglass lens  12 . This has the consequence that the lacquer  52  only partially covers the surface  34  of the eyeglass lens  12  in the edge zones. The edge of the lacquer layer  64  applied to the eyeglass lens  12  then appears frayed. 
       FIG. 5B  shows a portion of a carrier device  10  with an eyeglass lens  12  on which the lacquer  52  was applied by means of spin coating at a speed of rotation greater than the speed of rotation corresponding to the situation shown in  FIG. 5A . Here, the speed of rotation is high enough to ensure that the entire surface  34  of the eyeglass lens  12  is covered with the lacquer  52 . However, in that area of the layer  64  indicated by the arrow  66 , the thickness d s  of the layer increases in a wedge shape toward the edge  22  of the eyeglass lens  12 . As the lacquer  52  dries, cracks often form in the lacquer layer  64  at the edge  22  of the eyeglass lens  12 . 
       FIG. 5C  shows a portion of a carrier device  10  with an eyeglass lens  12  on which the lacquer  52  was applied by means of spin coating at a speed of rotation greater than the speed of rotation for the spin coating in a situation corresponding to  FIG. 5A  and  FIG. 5B . Here, the layer  64  consisting of a lacquer  52  on the surface  34  has a bead  68  at the edge  22  of the eyeglass lens  12 . Such a bead  68  in the eyeglass lens  12  has the consequence of limiting the useful surface area, since the bead  68  impairs the optical properties of the eyeglass lens  12  in the edge zones. In production of eyeglass lenses with a positive refractive index, such a bead  68  can lead to undesired reject material, since these eyeglass lenses are usually of a size which does not permit removal of material and which therefore requires that the optically active surfaces are of high quality even in the edge zones. 
       FIG. 5D  shows a portion of a carrier device  10  with an eyeglass lens  12  on which the lacquer  52  was applied by means of spin coating at a speed of rotation greater than the speed of rotation for the spin coating in the situation according to  FIG. 5C . Here, the layer  64  consisting of a lacquer  52  on the surface  34  of the eyeglass lens  12  has a run  70 , which has formed on the edge  22  of the eyeglass lens  12 , beyond the rim  72  of the latter. Such a run  70  impairs the quality of the eyeglass lens  12 . It has the effect that contamination can occur on the edge  22  of the eyeglass lens  12 . The reason for this is that the lacquer there is often not hardened. 
       FIG. 5E  shows a portion of a carrier device  10  with an eyeglass lens  12  on which the lacquer  52  was applied by means of spin coating at a speed of rotation greater than the speed of rotation for the spin coating in the situation shown in  FIG. 5D . Here, the lacquer  52  applied by means of spin coating is thrown off from the eyeglass lens  12  on account of an excessive centrifugal force. This not only results in an undesired loss of lacquer  52  but also has the effect that the packaging systems arranged in an installation for the spin coating of eyeglass lenses for irradiation with UV light become soiled and their functionality is then impaired. 
       FIG. 5F  shows a portion of a carrier device  10  with an eyeglass lens  12  on which lacquer  52  was applied by means of spin coating at a speed of rotation lower than the speed of rotation for the spin coating in the situation according to  FIG. 5D . The speed of rotation for the carrier device  10  in an installation for spin coating, as is shown in  FIG. 4 , is here adapted to the viscosity and the centrifugal behavior of the lacquer  52  in such a way that the lacquer applied to the eyeglass lens  12  from a dosing system in the center of the axis of the rotation movement is driven over the edge  23  of the surface  34  of the eyeglass lens  12  onto the adhesive tape  24 , and only here does a lacquer run  74  form. When the adhesive tape  24  is pulled off after completion of a coating operation, which can also include the hardening of applied lacquer  52 , a clean rim  72  of the applied lacquer layer  64  forms at the edge  23  of the eyeglass lens  12 , without the lacquer  52  coming into contact with the edge surface  21  or with that surface  30  of the eyeglass lens  12  facing into the hollow space. 
     Since the adhesive tape  24  is thin, that is, has a thickness of the order of only 0.1 mm, which corresponds to a thickness not greater than twice the thickness of a conventional lacquer layer, this means that, when the adhesive tape  24  is pulled off from an eyeglass lens  12 , a lacquer layer does not tear at the edge  22  of the latter. 
     The adhesive tape  24  also prevents the lacquer  52  from reaching the outside of the eyeglass lens and the surface  30  of the eyeglass lens  12  during the spin coating. It is thus possible to ensure that, in a coated eyeglass lens  12 , the applied layer has no cracks in the edge zones, and no optical distortions occur here. Moreover, it is possible in this way to ensure that the edge zones of the eyeglass lens blank are not poorly coated. 
       FIG. 6  shows an installation  80  for equipping a carrier device  10  with an eyeglass lens  12 . The installation  80  has a station  82  in which the eyeglass lens  12  is positioned, with a suction cup  84  on the arm of a manipulator  86 , over a main body  14 . In the station  82 , the eyeglass lens  12  is connected to the main body  14  by an adhesive tape  24 , which is delivered via a manipulator  88 . When applied around the eyeglass lens  12  and the main body  14 , the adhesive tape  24  is subjected to a tensile stress, which causes a stretching of the adhesive tape  24  and which leads to a narrowed-in contour  99  of the adhesive tape  24  in a carrier device. 
     The installation  80  contains a cutting mechanism  90 , which has a cutting knife  91  that can be moved by a computer-controlled drive  92 . With the cutting knife  91 , the adhesive tape  24  on a carrier device  10  is cut to size according to the profile, recorded with an optical measuring device  96 , of an edge  35  of the surface  34  of the eyeglass lens  12 . 
     For the cutting to size, the cutting knife  91  is placed tangentially onto the surface  34  of the eyeglass lens  12  by means of the drive  92 . The cutting edge of the cutting knife  91  is moved in rotation relative to the eyeglass lens  12  about an axis  87  of the manipulator. The cutting edge of the cutting knife  91  lies in a plane that is tangential to the surface  34  of the eyeglass lens  12 . In this way, the adhesive tape  24  is cut to size in such a way that the narrow side  25  of the adhesive tape  24  continuously adjoins the surface  34  of the eyeglass lens  12  at a tangent  37  that bears on the surface  24  of the eyeglass lens  12  and is radial to the axis  22 . The surface of the lateral edge  21  of the eyeglass lens  12  is then completely covered with the adhesive tape  24 . The adhesive tape  24  is exactly flush with the edge  35  of the surface  34  of the eyeglass lens  12 . The adhesive tape  24  is thus attached to the eyeglass lens  12  with an outwardly falling oblique edge. 
     With eyeglass lenses in which the height h of the edge  35  of the surface  34  with respect to the plane  98  of the bottom surface  15 ′ of the main body  14  of the carrier device varies on the circumference of this surface, the installation  80  makes it possible in particular to seal the lateral edge with the adhesive tape  24  in such a way that the lateral edge  21  of the eyeglass lens  12  is completely covered with the adhesive tape  24  and is attached flush to the edge  35  of the surface  34  of the eyeglass lens  12 . 
       FIG. 7  is a schematic view of an installation  100  for the finishing of an eyeglass lens  12  by chemical wet-coating. The installation  100  contains  24  processing stations  102  to  148  through which a packaging system  11  with an eyeglass lens  12 , which is received in a carrier device  10 , can be moved by a conveying system  150  in the direction indicated by the arrows  151 . The packaging system  11  composed of eyeglass lens  12  and carrier device  10  is delivered to the installation  100  through a gate  152 . From the gate  152 , the conveying system  150  moves the packaging system  11  into a processing station configured as a cleaning station  102 . In the cleaning station  102 , the substrate of the surface  34  of the eyeglass lens  12  is cleaned with a cleaning medium delivered from a dosing system  156 . From here, the packaging system  11  is moved by the conveying system  150  into a processing station  104 , in which the eyeglass lens  12  is flushed with warm, fully deionized water which is at a temperature T≈40° C. and which is provided by a flushing device  158 . In a processing station configured as a polishing station  106 , the surface  34  of an eyeglass lens  12  is then polished by a polishing tool  160  during delivery of cleaning medium  162 . Thereafter, the eyeglass lens  12 , in a processing station  108 , is once again flushed with warm, fully deionized water at a temperature T≈40° C. The conveying system  150  then moves the packaging system  11  into a processing station  110  for mechanical brushing of the surface  34  with a brushing tool  163  in a cleaning medium  162 . In the processing station  112 , the eyeglass lens  12  received in the carrier device  10  is then once again flushed with water delivered by a flushing device  158 . Thereafter, the packaging system  11  is moved into a processing station  114  in which the substrate of the surface  34  of the eyeglass lens  12  is activated with 50%-strength KOH solution. In a processing station  116 , the eyeglass lens  12  is then once again flushed, as in the processing station  112 , with warm, fully deionized water at a temperature T≈40° C. delivered by a flushing device  158 . From the processing station  116 , the packaging system  11  with the eyeglass lens  12  is moved by means of the conveying system  150  into a processing station  118  for high-pressure cleaning of the surface  34  of the eyeglass lens  12 . For this purpose, the processing station  118  contains a nozzle system  164  with which warm, fully deionized water at a temperature T≈40° C. is delivered at a high pressure P of the order of P=120 bar or more, in order to impact the surface  34  of the eyeglass lens  12 . According to the arrow  151 , the conveying system  150  in the installation  100  then moves the packaging system  11 , composed of an eyeglass lens  12  in the carrier device  10 , into a processing station  120  in which the surface  34  of the eyeglass lens  12  is dried with a warm air stream  167  from a nozzle system  166 . 
     After the drying, the eyeglass lens  12  is measured in the processing station  122  by a measuring system  168  with laser light  170 . With the measuring system  170 , the topography of the enveloping surface area of the eyeglass lens  12 , that is, the topography of the surface  34  thereof, is determined, and the z-height function  172  of the eyeglass lens  12  with respect to the bottom surface  174  of the main body  14  of the carrier device  10  is determined. After the measuring procedure in the processing station  122 , the eyeglass lens  12  is primed, in the processing station  124 , with adhesion promoter  174 ′, which is provided by a dosing system (not shown). In a processing station  126 , the adhesion promoter  174 ′ is then dried with a laminar flow  176  which comes from a nozzle system  178  and which is in the form of conditioned air, of which the moisture content and temperature are specifically set. The conveying system  150  then moves a packaging system  11  into a processing station  128 , in which a functional lacquer  180  is applied to the surface  34  of the eyeglass lens  12  by immersion in a lacquer bath  182 . After the application of the functional lacquer  180 , the applied lacquer layer is then hardened with UV light  184  from an irradiating device  186  in a processing station  130 . The wavelength λ of the UV light  184  lies in the range of 360 nm &lt;λ&lt;420 nm. In a processing station  132 , the eyeglass lens  12  is then exposed to ambient air from a circulation system  188 , in order to post-harden the corresponding lacquer layer on the eyeglass lens  12  at a temperature T in a range of 90° C. ≦T≦130° C. 
     With the conveying system  150 , the packaging system  11  is then moved from the processing station  132  into a processing station  134 , in which the surface  34  of the eyeglass lens  12  is subjected to high voltage U of the order of U=40 kV from a high-voltage system  190 , in order thereby to activate the functional lacquer that was applied to the eyeglass lens in the processing station  128 . In a processing station  136  downstream of the processing station  134 , the surface of the eyeglass lens  12  is then activated, as in the processing station  114 , with 50%-strength KOH solution, so as to be treated subsequently in the processing stations  138 ,  140  and  142 , which correspond to the processing stations  116 ,  118  and  120 . 
     The conveying system  150  finally moves the packaging system  11  into a processing station  144  and positions the eyeglass lens  12 , received in the carrier device, on a driven spindle  192  of a mechanism  194  for spin coating, under a dosing system  196  for a protective lacquer  198 . The protective lacquer  198  applied by means of spin coating in the processing station  144  is then hardened with IR light, in a processing station  146 , at a temperature T lying in the range of 50° C.≦T≦80° C. In a processing station  148 , whose set-up corresponds to that of the processing station  132 , the protective lacquer  198  is post-hardened again with ambient air at a temperature T in a range of 90° C.≦T≦130° C. 
     With the conveying system  150 , the eyeglass lens  12  finished in the installation  100  is released with the carrier device  10  through a gate  200  to a buffer installation (not shown), from which the corresponding eyeglass lenses with carrier devices can then be removed in order to undergo further machining steps. 
       FIG. 8  is a partial section of a coated eyeglass lens  12  in a carrier device  10  according to the invention. A layer  204  of a so-called primer, which acts as adhesive layer, is situated on the surface  34  of the eyeglass lens  12 . A layer  206  of a photochromic material is situated on the layer  204 . The layer  206  is covered by a layer  208  of hard lacquer, on which an anti-reflection layer  210  is situated. A hydrophobic layer  212  is situated on the anti-reflection layer  210 . An anti-fogging layer  214  is situated on the hydrophobic layer  212 . The layers  204  to  213  on the surface  34  of the eyeglass lens are produced by means of chemical wet-coating, which can be carried out, as in the installation described above with reference to  FIG. 7 , on an eyeglass lens  12  received in a carrier device  10 . The surface  30  of the eyeglass lens  12  facing into the hollow space  32  in the carrier device  10  is covered with a layer  216  of a primer which, like the layer  204 , acts as an adhesive layer. A layer  218  of hard lacquer is applied to the layer  216 . The layer  218  is covered with an anti-reflection layer  220 , on which a hydrophobic layer  222  and an anti-fogging layer  224  are situated. With the carrier device  10 , it is possible to finish the surface  34  of the eyeglass lens  12  by chemical wet-coating when the surface  30  of the eyeglass lens  12  has already been fully coated. The carrier device  10  allows an eyeglass lens  12  to be received in such a way that the lateral edge surface  26  of an eyeglass lens  12  and the side  30  of the eyeglass lens facing into the hollow space  32  of the carrier device  10  are protected against contamination in conditioning and machining processes carried out on the surface  34  of the eyeglass lens  12 . 
       FIG. 9  shows a carrier device  310  with a clamping ring  324  for securing an eyeglass lens  312  on a main body  314 . Insofar as the structure of the carrier device  310  corresponds to the structure of the carrier device  10  described with reference to  FIG. 1  to  FIG. 3 , the components of the carrier device  310  are provided with reference signs increased by  300  in relation to  FIG. 1 ,  FIG. 2  and  FIG. 3 . Unlike the eyeglass lens  12  received in the carrier device  10  of  FIG. 1 , the eyeglass lens  312  in the carrier device  310  is an eyeglass lens with a positive refractive index. 
     The clamping ring  324  is a connecting member with which the eyeglass lens  312  is attached to the main body  314  of the carrier device  310 . The clamping ring  324  is composed of an elastic polymer, for example, of thermoplastic elastomer or of PTFE. 
     The clamping ring  324  is formed with a T-shaped cross-sectional profile and has a portion  328  which bears with a force fit on a lateral edge surface  326  of the eyeglass lens  312 . The clamping ring  324  has a portion  329  that surrounds the lateral edge  315  of the main body  314 . The lateral edge  321  of the eyeglass lens  312  is then completely covered by the clamping ring  324 . 
     The clamping ring  324  has a front face  325  which continuously adjoins the surface  334 , directed away from the main body  314 , of an eyeglass lens  312  received in the carrier device  310 . The eyeglass lens  312  received in the carrier device  310  forms a closed-off hollow space  332  with the surface  330  facing the main body  314  and with the clamping ring  324  and the main body  314 . 
     In the carrier device  310 , the lateral edge surface  326  and the surface  330  of the eyeglass lens  312  are thus protected against contamination by substances to which the surface  334  of the eyeglass lens  312  is exposed in production and finishing processes in a production facility for eyeglass lenses. 
       FIG. 10  shows a carrier device  410  in which an eyeglass lens, which is received in the carrier device  410  and can be designed as a minus-power lens  412 ′ or as a plus-power lens  412 ″, can be cooled with a stream of fluid guided through the hollow space  432 , while the surface ( 434 ′,  434 ″) is finished, for example, by hardening of a chemical wet coating. Insofar as the structure of the carrier device  410  corresponds to the structure of the carrier device  10  described with reference to  FIG. 1  to  FIG. 3 , the components of the carrier device  410  are provided with reference signs increased by  400  in relation to  FIG. 1 ,  FIG. 2  and  FIG. 3 . The carrier device  410  likewise comprises a connecting member ( 424 ′,  424 ″) which connects a main body  414  to the eyeglass lens  412  and which can be designed as a plastic adhesive tape  424 ′ or a clamping ring  424 ″. 
     The main body  414  of the carrier device  410  has a seat  436  acting as an interface for a rotatable shaft  446  with a fluid channel  448 . The rotatable shaft  446  forms a receiving unit in a processing station of an eyeglass lens production facility (not shown). 
     The seat has a groove  437  for the engagement of a sealing ring  447  arranged on a shaft  446 . In the main body  414 , an opening  415  is formed via which a fluid channel  448  formed in the shaft  446  can be connected to the interior of the hollow space  432  of the carrier device. The main body  414  is also provided with openings  417  set back radially from the axis  424 . When a gaseous or liquid fluid, which is under pressure, is applied to the fluid channel  448  of the rotatable shaft  446 , a flow corresponding to the arrows ( 419 ,  421 ) can be established in the hollow space  432 , making it possible, for example, to transport heat away from the surface ( 430 ′,  430 ″) of the eyeglass lens  412  facing into the interior of the hollow space  432 . It will be noted that it is in principle also possible for a gaseous fluid, for example, air, to be sucked through the openings  417  in the main body  414  and through the fluid channel  448  formed in the shaft  446 , in order to cool an eyeglass lens ( 412 ′,  412 ″) received in the carrier device  410 . 
       FIG. 11  shows a carrier device  510  with a main body  514  that has an interface with a self-closing overpressure valve  515 , by which the hollow space  532  in the carrier device  510  can be exposed, in a filling station with an attachment element protruding into the seat  536 , to a liquid or gaseous fluid medium that is under pressure. In the carrier device  510 , the hollow space  532  acts as a fluid volume subjected to overpressure. 
     Insofar as the structure of the carrier device  510  corresponds to the structure of the carrier device  10  described with reference to  FIG. 1  to  FIG. 3 , the components of the carrier device  510  are provided with reference signs increased by  500  in relation to  FIG. 1 ,  FIG. 2  and  FIG. 3 . 
     The overpressure valve  515  is designed as a ball valve with a valve ball  517 , which can be moved in a valve space  519 . An overpressure present in the hollow space  532  presses the valve ball  517  into a valve seat  519 . By contrast, if the opening  521  of the main body  514  is exposed to a pressure that is greater than the pressure in the hollow space  532 , the valve ball  517  is lifted from its valve seat  519 , which has the effect that fluid medium can then pass through the opening  521 , and through fluid channels ( 523 ,  525 ) formed in the overpressure valve, into the interior of the hollow space  532 . 
     When a fluid medium that is under pressure is applied to the hollow space  532 , a support member is created with which the eyeglass lens ( 512 ′,  512 ″) in the carrier device  510  is supported, via the surface ( 530 ′,  530 ″) facing into the hollow space  532 , with a supporting force that stabilizes the eyeglass lens ( 512 ′,  512 ″) when it is thermally loaded, for example in a thermal cycle, or when a lacquer layer applied by chemical wet-coating is hardened by irradiation with UV light. 
       FIG. 12  shows a carrier device  610  for an eyeglass lens that can be designed as a minus-power lens  612 ′ or as a plus-power lens  612 ″. Insofar as the structure of the carrier device  610  corresponds to the structure of the carrier device  10  described with reference to  FIG. 1  to  FIG. 3 , the components of the carrier device  610  are provided with reference signs increased by  600  in relation to  FIG. 1 ,  FIG. 2  and  FIG. 3 . The carrier device  610  likewise comprises a connecting member which connects a main body  614  to the eyeglass lens ( 612 ′,  612 ″) and which can be designed as a plastic adhesive tape  624 ′ or a clamping ring  624 ″. In the hollow space  624 , there is a support member  625  in the form of a spring with a spring body made of PTFE. The spring  625  has a flat portion  627  which bears on a surface  649  of the main body  614  facing into the hollow space  632  and on which several spring tongues  629  are formed that extend like spiders&#39; legs into the hollow space and support the eyeglass lens ( 612 ′,  612 ″) via a convexly curved portion  631  bearing on the surface ( 630 ,  630 ″). 
     As with the support members  38  of the carrier device  10  in  FIG. 1 , the support member  625  can ensure that an eyeglass lens ( 612 ′,  612 ″) received on the carrier device  610  does not undergo plastic deformation, or at any rate undergoes only very little plastic deformation, when it is heated to the range of the so-called glass transition temperature T G . 
       FIG. 13  shows another carrier device  710  for an eyeglass lens that can be designed as a minus-power lens  712 ′ or as a plus-power lens  712 ″. Insofar as the structure of the carrier device  710  corresponds to the structure of the carrier device  10  described with reference to  FIG. 1  to  FIG. 3 , the components of the carrier device  710  are provided with reference signs increased by  700  in relation to  FIG. 1 ,  FIG. 2  and  FIG. 3 . The carrier device  710  likewise comprises a connecting member for connecting a main body  714  to the eyeglass lens ( 712 ′,  712 ″). The connecting member can be designed as a plastic adhesive tape  724 ′ or a clamping ring  724 ″. In the hollow space  724 , there are a large number of support bodies  729  which are designed in the manner of a ram, are subject to the force of a mechanical spring mechanism  725  or of a pneumatic spring mechanism  727  and have a Teflon-coated cylindrical circumferential surface  731  with a rounded dome  733 . The mechanical spring mechanism  725  contains a helical spring. The pneumatic spring mechanism  727  has a piston  735 , which is received in a cylindrical bore  733 , with a sealing ring  737  which cooperates with a gas cushion  739 . It is possible to design the carrier device  710 , not as a mechanical or pneumatic spring mechanism, but instead also in particular as a hydraulic spring mechanism. 
     The support bodies  729  are guided linearly in the main body  714 . They can be moved relative to the main body  714  in a direction corresponding to the double arrow  715 . With the mechanical or pneumatic spring mechanism ( 725 ,  727 ), the support bodies  729  act as a support member with which the eyeglass lens ( 712 ′,  712 ″), on its surface ( 730 ′,  730 ″) facing the main body  714 , is supported on the main body  714 . 
     As with the support members  38  in the carrier device  10  in  FIG. 1 , it is thus possible to ensure that an eyeglass lens ( 712 ′,  712 ″) received in the carrier device  710  does not undergo plastic deformation, or at any rate undergoes only very little plastic deformation, when it is heated to the range of the so-called glass transition temperature T G . 
       FIG. 14  shows a carrier device  810  for an eyeglass lens that can be designed as a minus-power lens  812 ′ or as a plus-power lens  812 ″. Insofar as the structure of the carrier device  810  corresponds to the structure of the carrier device  10  described with reference to  FIG. 1  to  FIG. 3 , the components of the carrier device  810  are provided with reference signs increased by  800  in relation to  FIG. 1 ,  FIG. 2  and  FIG. 3 . The carrier device  810  likewise comprises a connecting member for connecting a main body  814  to the eyeglass lens ( 812 ′,  812 ″). The connecting member can be designed as a plastic adhesive tape  824 ′ or a clamping ring  824 ″. In the hollow space  832 , there are a large number of hollow bodies  825  which are made of plastic, preferably Teflon, and which have a wall  827  designed as a bellows. The hollow bodies  825  have an attachment portion  829 , with which they are bonded adhesively to the main body  814  of the carrier device  810 . The hollow bodies  825  are formed with a receiving portion  831  on which an eyeglass lens ( 812 ′,  812 ″), received in the carrier device  810 , bears via the surface ( 830 ′  830 ″) facing the main body  814 . The hollow bodies  825  act as support members for an eyeglass lens ( 812 ′,  812 ″) received in the carrier device  810 . They are elastically deformable in the direction of the axis  822 , thus providing a spring action. 
     As with the support members  38  in the carrier device  10  in  FIG. 1 , it is possible to ensure, with the hollow bodies  825 , that an eyeglass lens ( 812 ′,  812 ″) received in the carrier device  810  does not undergo plastic deformation, or at any rate undergoes only very little plastic deformation, when it is heated to the range of the so-called glass transition temperature T G . 
       FIG. 15  shows a carrier device  910  for an eyeglass lens that can be designed as a minus-power lens  912 ′ or as a plus-power lens  912 ″. Insofar as the structure of the carrier device  910  corresponds to the structure of the carrier device  10  described with reference to  FIG. 1  to  FIG. 3 , the components of the carrier device  910  are provided with reference signs increased by  900  in relation to  FIG. 1 ,  FIG. 2  and  FIG. 3 . The carrier device  910  likewise comprises a connecting member for connecting a main body  914  to the eyeglass lens ( 912 ′,  912 ″). The connecting member can be designed as a plastic adhesive tape  924 ′ or a clamping ring  924 ″. In the hollow space  932 , there is a support member in the form of a gel cushion  925 , which has an envelope  927  filled with a gel material  929 . The gel material  929  is a finely dispersive system having a solid phase and a liquid phase. The solid phase has the effect of a sponge, of which the pores are filled by a liquid or a gas. The gel material  929  can be agar-agar, for example. However, swellable acrylic polymer crystals mixed with water are also suitable in particular as gel material. 
     When the eyeglass lens is arranged in the carrier device  910 , the side of the gel cushion  921  directed toward the eyeglass lens is adapted to the topography of the surface ( 930 ′,  930 ″) of the eyeglass lens facing into the hollow space. This has the effect that the eyeglass lens is supported in planar fashion on the surface ( 930 ′,  930 ″) facing into the hollow space. The gel material  929  in the gel cushion  925  can in particular be a magnetostrictive gel material that hardens when exposed to a magnetic field. By applying a magnetic field to the carrier device  910 , it is possible, for example, to vary the supporting force for an eyeglass lens received in the carrier device  910  when the eyeglass lens is subjected to a thermal cycle in a finishing process. 
       FIG. 16  shows a carrier device  1010  for an eyeglass lens that can be designed as a minus-power lens  1012 ′ or as a plus-power lens  1012 ″. Insofar as the structure of the carrier device  1010  corresponds to the structure of the carrier device  10  described with reference to  FIG. 1  to  FIG. 3 , the components of the carrier device  1010  are provided with reference signs increased by  1000  in relation to  FIG. 1 ,  FIG. 2  and  FIG. 3 . The carrier device  1010  likewise comprises a connecting member for connecting a main body  1014  to the eyeglass lens ( 1012 ′,  1012 ″). The connecting member can be designed as a plastic adhesive tape  1024 ′ or a clamping ring  1024 ″. In the hollow space  1032 , there is a ball cushion  1025  which acts as a support member with which the eyeglass lens ( 1012 ′,  1012 ″) in the carrier device  1010  is supported on the main body  1014 . The ball cushion  1025  has an envelope  1027 , which is filled with a large number of balls  1029  made of plastic or metal, in particular stainless steel. The envelope  1027  has an opening for a valve  1031  integrated in the main body  1014 . The valve  1031  has a valve body  1033 , in which a closure element in the form of a valve ball  1035  can be moved between a first and a second closure position between a valve seat  1037  and a valve seat  1039 . In the first closure position, in which, as can be seen in  FIG. 16 , the valve ball  1035  is positioned in the valve seat  1037 , a gas volume received in the ball cushion  1031  is held back by means of the valve  1031 , which gas volume is exposed to an overpressure in relation to the atmosphere. Such a gas volume in the ball cushion  1031  has the effect that the latter is easily deformable, such that, when an eyeglass lens is arranged in the carrier device  1010 , the ball cushion conforms in shape to the surface ( 1030 ′,  1030 ″) of the eyeglass lens facing into the hollow space  1032 . When the eyeglass lens is positioned in the carrier device  1010 , an underpressure can be generated in the ball cushion  1025  by means of the gas volume received in the ball cushion  1025  being suctioned when the valve  1031  formed in the main body  1014  is attached to a suction device (not shown). Such an underpressure has the effect that the balls  1029  in the ball cushion are pressed tightly onto each other. In this way, the ball cushion can be stiffened in the shape in which, in the area facing the eyeglass lens  1012 , it has a shape corresponding to the topography of the surfaces ( 1030 ′,  1030 ″). By means of an underpressure generated in the ball cushion  1031 , the valve ball  1035  in the valve seat  1039  is held in the second closure position. This ensures that an underpressure generated in the ball cushion  1031  is maintained when the eyeglass lens undergoes a finishing process, for example. 
       FIG. 17  shows a carrier device  1110  for an eyeglass lens that can be designed as a minus-power lens  1112 ′ or as a plus-power lens  1112 ″. Insofar as the structure of the carrier device  1110  corresponds to the structure of the carrier device  10  described with reference to  FIG. 1  and  FIG. 2 , the components of the carrier device  1110  are provided with reference signs increased by  1100  in relation to  FIG. 1  and  FIG. 2 . The carrier device  1110  likewise comprises a connecting member for connecting a main body  1114  to the eyeglass lens ( 1112 ′,  1112 ″). The connecting member can be designed as a plastic adhesive tape  1124 ′ or a clamping ring  1124 ″. In the hollow space  1132 , there are a large number of plastic bodies  1125  which act as support members and with which the eyeglass lens ( 1112 ′,  1112 ″) received in the carrier device  1110  is supported on the main body  1114 . The plastic bodies  1125  are arranged in recessed portions  1127  formed on that side of the main body  1114  facing into the hollow space  1132 . The plastic bodies  1125  are made from UV adhesive which, after an eyeglass lens has been arranged in the carrier device  1110 , is hardened by exposure to UV light through the eyeglass lens. For receiving it in the carrier device  1110 , an eyeglass lens is pressed against adhesive tracks of UV adhesive that are applied to the recessed portions  1127  of the main body. The eyeglass lens is then secured with the plastic adhesive tape  1124 ′ or with the clamping ring  1124 ″ on the main body  1114 . 
       FIG. 18  shows an eyeglass lens machining system  1200  designed as a coating installation for spray coating. In the machining system  1200 , an eyeglass lens designed as a plus-power lens  1212 ′ or as a minus-power lens  1212 ″ is held with a carrier device  1210 . Insofar as the structure of the carrier device  1210  corresponds to the structure of the carrier device  10  described with reference to  FIG. 1  to  FIG. 3 , the components of the carrier device  1210  are provided with reference signs increased by  1200  in relation to  FIG. 1 ,  FIG. 2  and  FIG. 3 . 
     The carrier device  1210  in the machining system is attached to a spindle  1217  which can move in the direction of the double arrow  1207  and which has a coupling member  1241  designed as a suction cup. The coupling member  1241  receives the carrier device  1210  on an attachment member  1236  formed on the main body  1214 . The attachment member  1236  is a recess for the suction cup  1241 , with which the carrier system  1210  can be secured on the spindle  1217  under the effect of underpressure. The machining system  1200  has a fluid container  1202  with a conduit  1204  for a coating fluid  1206 , in which conduit several nozzles  1208  are formed. 
     The coating fluid  1206  in the conduit  1204  is at a defined pressure in order to generate fluid jets  1211  which issue from the nozzle  1208  and which are directed onto the surface ( 1234 ′,  1234 ″) of the eyeglass lens ( 1212 ′  1212 ″), in order to apply a layer of fluid to the surface ( 1234 ′,  1234 ″). The surface ( 1234 ′,  1234 ″) of the eyeglass lens ( 1212 ′,  1212 ″) in the carrier device  1210  is an optically active surface with a concave shape. In an eyeglass frame, this surface is directed away from the eye of the person wearing the eyeglass frame. 
     To ensure that the layer of fluid applied to the eyeglass lens ( 1212 ′,  1212 ″) in the eyeglass lens machining system  1200  adheres to the surface ( 1234 ′,  1234 ″) with a uniform layer thickness, the carrier device  1210  on the spindle  1217  is rotated, according to the arrow  1213 , about a rotation axis  1231  extending through the vertex ( 1239 ′,  1239 ″), in order to drive the coating fluid  1206 , under the effect of the centrifugal force, to the edge ( 1221 ′,  1221 ″) of the eyeglass lens ( 1212 ′,  1212 ″). The coating fluid  1206  in the eyeglass lens machining system  1200  is circulated by a pump mechanism (not shown) through a conduit  1205  and the conduit  1204  in the direction of flow indicated by the arrows ( 1201 ,  1203 ). 
       FIG. 19  shows an eyeglass lens machining system  1300  designed as a coating installation for spray coating. In the machining system  1300 , an eyeglass lens designed as a plus-power lens  1312 ′ or as a minus-power lens  1312 ″ is held with a carrier device  1310 . Insofar as the structure of the carrier device  1310  corresponds to the structure of the carrier device  10  described with reference to  FIG. 1  to  FIG. 3 , the components of the carrier device  1310  are provided with reference signs increased by  1300  in relation to  FIG. 1 ,  FIG. 2  and  FIG. 3 . 
     The carrier device  1310  in the eyeglass lens machining system  1300  is attached to a spindle  1317  which can move in the direction of the double arrow  1307  and which has a coupling member  1341  designed as an outer thread. The coupling member  1341  receives the carrier device  1310  on an attachment member  1336  formed on the main body  1314 , which attachment member  1336  is a recess with an inner thread that engages in the outer thread of the spindle  1317 . The machining system  1300  has a fluid container  1302  which can be filled with a coating fluid  1306  via a conduit  1304 . In the machining system  1300 , the coating fluid  1306  flows from the fluid container  1302  into the fluid container  1308 , in order then to be circulated through a conduit  1305  by a pump system (not shown). The coating fluid  1306  is then fed once again into the fluid container  1302  with a flow device indicated by means of the arrows ( 1301 ,  1303 ). In the machining system  1300 , the carrier device  1310  received on the spindle  1317  with an eyeglass lens ( 1312 ′,  1312 ″) is immersed obliquely into the coating fluid  1306  in the fluid container  1302 . The surface ( 1334 ′,  1334 ″) of the eyeglass lens ( 1312 ′,  1312 ″) shown in  FIG. 19  is concave. In an eyeglass frame, the surface ( 1334 ′,  1334 ″) is directed toward the eye of a person wearing the eyeglass frame. 
     In the eyeglass lens machining system  1300 , the eyeglass lens ( 1312 ′,  1312 ″) is coated with the coating fluid  1306  as far as the vertex ( 1339 ′,  1339 ″) of the surface ( 1334 ′,  1334 ″). To ensure that the layer of fluid applied to the eyeglass lens ( 1312 ′,  1312 ″) in the eyeglass lens machining system  1300  adheres to the surface ( 1334 ′,  1334 ″) with a uniform layer thickness, the axis  1331  inclined with respect to the vertical  1307  by an angle β of, for example, β=20° is rotated. The coating fluid  1306  is in this way driven, under the effect of the centrifugal force, to the edge ( 1321 ′,  1321 ″) of the eyeglass lens ( 1312 ′,  1312 ″). 
     In summary, the following preferred features of the invention are noted in particular: The invention relates to a carrier device  10  for handling a lens  12  which is received therein and which has a lateral edge  21 , in particular for handling an eyeglass lens  12  in a machining or finishing process. The carrier device comprises a main body  14  and has a connecting member  24  for releasably connecting the main body  14  to the received lens  12 . The connecting member  24  forms, with the main body  14 , a protective cover  15  surrounding the lateral edge  21  of the received lens  12  and a surface  30  of the received lens  12  directed toward the main body  14 . The connecting member  24  is releasably connected to the main body  14 . 
     It is understood that the foregoing description is that of the preferred embodiments of the invention and that various changes and modifications may be made thereto without departing from the spirit and scope of the invention as defined in the appended claims. 
     LIST OF REFERENCE SIGNS 
     
         
           10  carrier device 
           11  packaging system 
           12  eyeglass lens 
           14  main body 
           15  protective cover 
           15 ′ bottom surface 
           16  edge surface, axis 
           17  spindle 
           18 ,  20  edge, circumferential contour 
           19  machining and/or lighting system 
           21  edge 
           22  axis, edge 
           23  edge 
           24  axis, connecting member, adhesive tape 
           25  narrow side 
           26  portion 
           27  electric motor 
           29  control mechanism 
           30  surface 
           31  rotation axis 
           32  hollow space, surface 
           33  portion 
           34  surface 
           35  edge 
           36  recess 
           37  tangent 
           39  vertex 
           38  support element, support member 
           40  annular spring 
           41  coupling member 
           42  pin, lacquer 
           43  front face 
           44  clamping shoe 
           45  groove 
           46  Allen screw 
           47  ring 
           49  surface portion 
           50  information carrier 
           50 ′ mechanism 
           51  data matrix code 
           52  lacquer 
           53 ,  55  positional reference point 
           54  axis 
           56  shaft 
           57  coordinates system 
           58  centering mandrel 
           60  dosing system 
           62  hollow needle 
           62  lacquer layer 
           64  layer 
           66  arrow 
           68  bead 
           70  run 
           72  rim 
           74  lacquer run 
           80  installation 
           82  station 
           84  suction cup 
           86 ,  88  manipulator 
           87  axis 
           90  cutting mechanism 
           91  cutting knife 
           92  drive 
           96  measuring device 
           98  plane 
           99  contour 
           100  installation 
           102 - 148  processing station, cleaning station 
           106  polishing station 
           150  conveying system 
           151  arrow 
           152  gate 
           156  dosing system 
           158  flushing device 
           160  polishing tool 
           162  cleaning medium 
           163  brushing tool 
           164 ,  166  nozzle system 
           167  air stream 
           168  measuring system 
           170  laser light 
           172  z-height 
           174  bottom surface 
           174 ′ adhesion promoter 
           176  flow 
           178  nozzle system 
           180  functional lacquer 
           182  lacquer bath 
           184  UV light 
           186  irradiating device 
           188  circulating system 
           190  high-voltage system 
           192  spindle 
           194  mechanism 
           196  dosing system 
           198  protective lacquer 
           200  gate 
           204 ,  206 ,  208  layer 
           210 ,  220  anti-reflection layer 
           212 ,  213 ,  214  layer 
           214 ,  224  anti-fogging layer 
           216 ,  218 ,  222  layer 
           310  carrier device 
           312  eyeglass lens 
           314  main body 
           315  edge 
           321  edge surface 
           324  clamping ring 
           325  front face 
           326  edge surface 
           328 ,  329  portion 
           330  surface 
           332  hollow space 
           334  surface 
           410  carrier device 
           412 ′ minus-power lens, eyeglass lens 
           412 ″ plus-power lens, eyeglass lens 
           412 ′,  412 ″ eyeglass lens 
           414  main body 
           415  opening 
           417  opening 
           419 ,  421  arrow 
           424 ′ plastic adhesive tape 
           424 ″ clamping ring 
           424  axis 
           430 ′,  430 ″ surface 
           432  hollow space 
           434 ′,  434 ″ surface 
           436  seat, interface 
           437  groove 
           442  hollow space 
           446  shaft, receiving unit 
           447  sealing ring 
           448  fluid channel 
           502  hollow space 
           510  carrier device 
           512 ′,  512 ″ eyeglass lens 
           514  main body 
           515  overpressure valve 
           517  valve ball 
           519  valve seat, valve space 
           521  opening 
           523 ,  525  fluid channel 
           530 ′,  530 ″ surface 
           532  hollow space 
           536  seat 
           542  hollow space 
           610  carrier device 
           612 ′ minus-power lens, eyeglass lens 
           612 ″ plus-power lens, eyeglass lens 
           614  main body 
           624 ′,  624 ″ plastic adhesive tape, clamping ring 
           624  hollow space 
           625  support member 
           627  portion 
           629  spring tongue 
           630 ′,  630 ″ surface 
           631  portion 
           632  hollow space 
           649  surface 
           710  carrier device 
           712 ′ minus-power lens, eyeglass lens 
           712 ″ plus-power lens, eyeglass lens 
           714  main body 
           715  double arrow 
           724  hollow space 
           724 ′ plastic adhesive tape 
           724 ″ clamping ring 
           725  spring mechanism 
           727  spring mechanism 
           729  support body 
           730 ′,  730 ″ surface 
           731  circumferential surface 
           733  dome, bore 
           735  piston 
           737  sealing ring 
           739  gas cushion 
           810  carrier device 
           812 ′ minus-power lens, eyeglass lens 
           812 ″ plus-power lens, eyeglass lens 
           814  main body 
           822  axis 
           824 ′ adhesive tape 
           824 ″ clamping ring 
           825  hollow bodies 
           827  wall 
           829  attachment portion 
           830 ′,  830 ″ surface 
           831  receiving portion 
           832  hollow space 
           810  carrier device 
           910  carrier device 
           912 ′ minus-power lens, eyeglass lens 
           912 ″ plus-power lens, eyeglass lens 
           914  main body 
           921  gel cushion 
           924 ′ adhesive tape 
           924 ″ clamping ring 
           925  gel cushion 
           927  envelope 
           929  gel material 
           930 ′,  930 ″ surface 
           932  hollow space 
           1010  carrier device 
           1012 ′ minus-power lens, eyeglass lens 
           1012 ″ plus-power lens, eyeglass lens 
           1012 ′,  1012 ″ eyeglass lens 
           1014  main body 
           1024 ′ plastic adhesive tape 
           1024 ″ clamping ring 
           1025  ball cushion 
           1027  envelope 
           1029  balls 
           1030 ′,  1030 ″ surface 
           1031  valve 
           1031  ball cushion 
           1032  hollow space 
           1033  valve body 
           1035  valve ball 
           1037 ,  1039  valve seat 
           1110  carrier device 
           1112 ′ minus-power lens, eyeglass lens 
           1112 ″ plus-power lens, eyeglass lens 
           1114  main body 
           1124 ′ plastic adhesive tape 
           1124 ″ clamping ring 
           1125  plastic bodies 
           1127  portions 
           1130 ′,  1130 ″ surface 
           1132  hollow space 
           1200  eyeglass lens machining system 
           1201 ,  1203  arrow 
           1202  fluid container 
           1204 ,  1205  conduit 
           1206  coating fluid 
           1207  double arrow 
           1208  nozzle 
           1210  carrier device 
           1211  fluid jets 
           1212 ′ plus-power lens, eyeglass lens 
           1212 ″ minus-power lens, eyeglass lens 
           1213  arrow 
           1214  main body 
           1217  spindle 
           1231  rotation axis 
           1221 ′,  1221 ″ edge 
           1234 ′,  1234 ″ surface 
           1236  attachment member 
           1239 ′,  1239 ″ vertex 
           1241  coupling member 
           1300  eyeglass lens machining system 
           1301 ,  1303  arrow 
           1302  fluid container 
           1304 ,  1305  conduit 
           1306  coating fluid 
           1307  double arrow, vertical 
           1308  fluid container 
           1310  carrier device 
           1312 ′ plus-power lens, eyeglass lens 
           1312 ″ minus-power lens, eyeglass lens 
           1314  main body 
           1317  spindle 
           1321 ′,  1321 ″ edge 
           1331  axis 
           1334 ′,  1334 ″ surface 
           1336  attachment member 
           1339 ′,  1339 ″ vertex 
           1341  coupling member