Patent Description:
At present, a dot sight usually includes a light source, a reflector, a collimator objective, and a beam splitter prism. The light source is configured to emit light to an eye side. The light from the light source is deflected by the reflector to the collimator objective, then converted into parallel light through the collimator objective, and finally deflected by the beam splitter prism to enter a human eye. Since the light from the light source faces to the eye side, a bright dot of the light source basically cannot be observed from an object side, thereby lowering an exposure risk of a shooter.

However, when the dot sight aims at a close target, light of the target is divergent light with a certain divergence angle, rather than parallel light. In order to view the target clearly, the human eye automatically adjusts a crystalline lens to image the target on a retina. Since the light from the light source is converted into the parallel light by the collimator objective, and a shape of the crystalline lens in the human eye is changed, the light from the light source is imaged in front of the retina. Consequently, an image of the light from the light source and an image of the target are not superimposed on the retina to cause a parallax. Specifically, when a head shakes, an imaging position of the light from the light source and an imaging position of the target are relatively changed, which affects aiming accuracy.

A dot sight of the art is taught in <CIT>.

An embodiment of the present application is intended to provide a dot sight, to solve the problem that when aiming at a close target, the existing dot sight has a parallax to affect an aiming accuracy.

To achieve the above objective, the present application uses the following technical solutions: A dot sight includes:.

In an embodiment, the light source member is threadedly connected to the sight mount.

In an embodiment, the dot sight further includes an inner tube provided at the end of the first chamber close to the object side, and a first adjustment mechanism provided at an end of the inner tube close to the eye side; a first ball head is provided convexly at a circumferential side of the inner tube; a first ball socket is provided concavely on a wall of the first chamber; the first ball head is hinged to the first ball socket; the first adjustment mechanism is configured to drive the inner tube to rotate; a third chamber penetrating through the inner tube along an axial direction is formed in the inner tube; the light source member is provided in the third chamber; and an axial position of the light source member relative to the inner tube is adjustable.

In an embodiment, the light source member is threadedly connected to the inner tube.

In an embodiment, the dot sight further includes a first spring; the first spring is provided in the third chamber; and two axially opposite ends of the first spring are respectively connected to the light source member and the inner tube.

In an embodiment, the third chamber includes a first mounting hole and a first through hole sequentially arranged from the object side to the eye side; and
the dot sight further includes a first adjusting rod and a first pressure ring; the first adjusting rod is rotatably provided in the first mounting hole; the first pressure ring is connected to an end of the inner tube close to the object side, and restricts the first adjusting rod from moving axially along the first mounting hole; an end of the first adjusting rod close to the eye side is provided with an axially extending first connecting hole; the light source member includes one end connected to the first connecting hole, and the other end penetrating through the first through hole; and the first adjusting rod in rotation can drive the light source member to move axially relative to the first through hole.

In an embodiment, an end of the light source member is threadedly connected to the first connecting hole; and the first through hole is a non-circular hole, and restricts the light source member from rotating relative to the first through hole; or
the end of the light source member is inserted into the first connecting hole; the first connecting hole is a non-circular hole, and restricts the light source member from rotating relative to the first connecting hole; and the light source member is threadedly connected to the first through hole.

In an embodiment, the dot sight further includes a second spring; the second spring is provided in the first connecting hole; and two axially opposite ends of the second spring are respectively connected to the light source member and the first adjusting rod, or the two axially opposite ends of the second spring are respectively connected to the light source member and the inner tube.

In an embodiment, the end of the first chamber close to the object side is sequentially provided with a second mounting hole and a second through hole from the object side to the eye side; and
the dot sight further includes a second adjusting rod and a second pressure ring; the second adjusting rod is rotatably provided in the second mounting hole; the second pressure ring is connected to an end of the sight mount close to the object side, and restricts the second adjusting rod from moving axially along the second mounting hole; an end of the second adjusting rod close to the eye side is provided with an axially extending second connecting hole; the light source member includes one end connected to the second connecting hole, and the other end penetrating through the second through hole; and the second adjusting rod in rotation can drive the light source member to move axially relative to the second through hole.

In an embodiment, the end of the light source member is threadedly connected to the second connecting hole; and the second through hole is a non-circular hole, and restricts the light source member from rotating relative to the second through hole; or
the end of the light source member is inserted into the second connecting hole; the second connecting hole is a non-circular hole, and restricts the light source member from rotating relative to the second connecting hole; and the light source member is threadedly connected to the second through hole.

In an embodiment, the dot sight further includes a third spring; the third spring is provided in the second connecting hole; and two axially opposite ends of the third spring are respectively connected to the light source member and the second adjusting rod, or the two axially opposite ends of the third spring are respectively connected to the light source member and the sight mount.

In an embodiment, the collimator lens set includes a first lens, a second lens, and a third lens sequentially arranged from the object side to the eye side and having a refractive capability;.

In an embodiment, the dot sight further includes a battery and/or a solar panel electrically connected to the light source member and configured to supply power to the light source member.

An embodiment of the present application is further intended to provide a dot sight, including:.

In an embodiment, the collimator lens set further includes a first lens holder for mounting the first lens, and a second lens holder for mounting the second lens; the first lens holder is fixedly provided in the first chamber; and the second lens holder is slidably provided in the first chamber.

In an embodiment, a third mounting hole is formed in a circumferential surface of the sight mount; a third through hole communicated with the first chamber is formed in a bottom of the third mounting hole; and the third through hole is a waist-shaped hole extending along the axial direction of the sight mount; and
the dot sight further includes a focusing mechanism; the focusing mechanism includes a focusing handwheel and a deflector rod; the focusing handwheel is rotatably provided in the third mounting hole, and is restricted from moving axially along the third mounting hole; an end of the focusing handwheel close to the bottom of the third mounting hole is provided with a curved groove; the curved groove extends along a circumferential direction of the focusing handwheel; a centerline of the curved groove is gradually close to a central axis of the focusing handwheel; the deflector rod includes one end slidably connected to the curved groove, and the other end penetrating through the third through hole and connected to the second lens holder; and the focusing handwheel in rotation can drive the second lens holder to slide in the first chamber.

In an embodiment, a third connecting hole is formed in the bottom of the third mounting hole; and
the focusing mechanism further includes a locking bolt; a nail portion of the locking bolt is provided on the focusing handwheel in a penetration manner and threadedly connected to the third connecting hole; and a head portion of the locking bolt presses the focusing handwheel and restricts the focusing handwheel from moving axially along the third mounting hole.

In an embodiment, the dot sight further includes a fourth spring elastically pressed between the first lens holder and the second lens holder.

In an embodiment, a second ball head is provided convexly at a circumferential side of the light source member; a second ball socket is provided concavely on a wall of the first chamber; the second ball head is hinged to the second ball socket; the dot sight further includes a second adjustment mechanism provided at an end of the light source member close to the eye side; and the second adjustment mechanism is configured to drive the light source member to rotate.

The dot sight provided by the present application has the following beneficial effects:
According to the dot sight provided by the embodiment of the present application, the light source member, the collimator lens set, and the reflector are provided in the sight mount. The beam splitter prism is provided in the sight frame. The light source member emits the light to the collimator lens set. The light from the light source member is refracted by the collimator lens set. The light from the light source member is reflected repeatedly to the eye side through the reflector, and the reflective film on the first prism and the second prism. This can effectively ensure invisibility of the light source member and the light from the light source member, basically cannot observe a bright dot of a target from the object side, and can effectively lower an exposure risk of a shooter.

Upon this, according to the dot sight provided by the embodiment of the present application, in response to different aiming distances, by adjusting the axial position of the light source member relative to the sight mount to adjust a distance from the light source member to the collimator lens set, or by adjusting the axial position of the second lens of the collimator lens set relative to the sight mount to adjust a distance from the second lens of the collimator lens set to the light source member, a refraction effect of the collimator lens set for the light from the light source member can further be adjusted. Consequently, the light from the light source member and the light of the target have an approximately same incident angle when entering the eye side, and the light from the light source member and the light of the target can be superimposed on a retina for imaging. This can effectively eliminate a parallax, can effectively make the parallax fall within an allowed range at different aiming distances, and can effectively ensure and improve an aiming accuracy.

To describe the technical solutions in the embodiments of the present application more clearly, the drawings required for describing the embodiments or the prior art are described briefly below. Apparently, the drawings in the following description merely show some embodiments of the present application, and those of ordinary skill in the art may still derive other drawings from these drawings without creative efforts.

In the figures:
<NUM>-sight mount, <NUM>-first chamber, <NUM>-sight frame, <NUM>-second chamber, <NUM>-through opening, <NUM>-light source member, <NUM>-light-emitting element, <NUM>-lamp holder, <NUM>-collimator lens set, <NUM>-first lens, <NUM>-second lens, <NUM>-third lens, <NUM>-reflector, <NUM>-beam splitter prism, <NUM>-first prism, <NUM>-second prism, <NUM>-reflective film, <NUM>-solar panel, <NUM>-first ball socket, <NUM>-inner tube, <NUM>-first ball head, <NUM>-third chamber, <NUM>-first adjustment mechanism, <NUM>-first ballistic adjusting bolt, <NUM>-first windage adjusting bolt, <NUM>-first spring, <NUM>-first mounting hole, <NUM>-first through hole, <NUM>-first adjusting rod, <NUM>-first connecting hole, <NUM>-first pressure ring, <NUM>-second spring, <NUM>-second mounting hole, <NUM>-second through hole, <NUM>-second adjusting rod, <NUM>-second connecting hole, <NUM>-second pressure ring, <NUM>-third spring, <NUM>-first lens holder, <NUM>-second lens holder, <NUM>-third mounting hole, <NUM>-third through hole, <NUM>-third connecting hole, <NUM>-focusing mechanism, <NUM>-focusing handwheel, <NUM>-curved groove, <NUM>-deflector rod, <NUM>-locking bolt, <NUM>-fourth spring, <NUM>-second ball head, <NUM>-second ball socket, <NUM>-second adjustment mechanism, <NUM>-second ballistic adjusting bolt, and <NUM>-second windage adjusting bolt.

To make the to-be-resolved technical problems, technical solutions and beneficial effects of the present application clearer, the present application is described in further detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are merely intended to explain the present application, rather than to limit the present application.

In the description of the present application, it needs to be understood the orientation or positional relationships indicated by terms, such as "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", and "outside", are based on the orientation or positional relationship shown in the accompanying drawings, are merely for facilitating the description of the present application and simplifying the description, rather than indicating or implying that an apparatus or element referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore shall not be interpreted as limiting the present application.

In addition, the terms "first" and "second" are merely intended for a purpose of description, and shall not be understood as an indication or implication of relative importance or implicit indication of a quantity of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, "multiple" means two or more, unless otherwise specifically defined.

In the present application, unless otherwise clearly specified, the terms such as "mounting", "interconnection", "connection" and "fixation" are intended to be understood in a broad sense. For example, the "connection" may be a fixed connection, removable connection or integral connection; may be a mechanical connection or electrical connection; may be a direct connection or indirect connection via a medium; and may be a communication or interaction between two elements. Those of ordinary skill in the art may understand specific meanings of the above terms in the present application based on specific situations.

A sight is usually provided on a firearm to make aiming more accurate and shooting less difficult. In the present application, the term "eye side" refers to an end of the sight close to a shooter in an actual operation, and the term "object side" refers to an end of the sight close to a target in the actual operation, namely an end away from the shooter.

An existing dot sight usually includes a light source, a reflector, a collimator objective, and a beam splitter prism. The light source is configured to emit light to the eye side. The light from the light source is deflected by the reflector to the collimator objective, then converted into parallel light through the collimator objective, and finally deflected by the beam splitter prism to enter a human eye. Since the light from the light source faces to the eye side, a bright dot of the light source basically cannot be observed from the object side, thereby lowering an exposure risk of the shooter.

However, when the dot sight aims at a close target, light of the target is divergent light with a certain divergence angle, rather than parallel light. In order to view the target clearly, the human eye automatically adjusts a crystalline lens to image the target on a retina. Since the light from the light source is converted into the parallel light by the collimator objective, and a shape of the crystalline lens in the human eye is changed, the light from the light source is imaged in front of the retina. Consequently, an image of the light from the light source and an image of the target are not superimposed on the retina to cause a parallax. Specifically, when a head shakes, an imaging position of the light from the light source and an imaging position of the target are changed relatively to affect an aiming accuracy.

Therefore, an embodiment of the present application provides a novel dot sight. While hiding a bright dot of a light source to lower an exposure risk of a shooter, the dot sight can make a parallax fall within an allowed range at different aiming distances, thereby ensuring and improving an aiming accuracy.

The specific implementation of the present application is described in detail below with reference to specific embodiments.

Referring to <FIG> and <FIG>, an embodiment of the present application provides a dot sight, including sight mount <NUM>, sight frame <NUM>, light source member <NUM>, collimator lens set <NUM>, reflector <NUM>, and beam splitter prism <NUM>. First chamber <NUM> extending along an axial direction of the sight mount is formed in the sight mount <NUM>. An end of the first chamber <NUM> close to an object side communicates with the outside. The sight frame <NUM> is provided at a circumferential side of the sight mount <NUM> close to an eye side. Second chamber <NUM> penetrating through the sight frame along an axial direction, and through opening <NUM> communicating the second chamber <NUM> and the first chamber <NUM> are formed in the sight frame <NUM>. The light source member <NUM> is provided at the end of the first chamber <NUM> close to the object side, and configured to emit light to the eye side. An axial position of the light source member <NUM> relative to the sight mount <NUM> is adjustable. The collimator lens set <NUM> is provided in the first chamber <NUM>, and provided at a side of the light source member <NUM> close to the eye side. The reflector <NUM> is provided in the first chamber <NUM>, and corresponding to the through opening <NUM>. The beam splitter prism <NUM> is provided in the second chamber <NUM>. The beam splitter prism <NUM> includes first prism <NUM> and second prism <NUM> cemented to each other. Reflective film <NUM> is provided on a cemented plane of the first prism <NUM> and the second prism <NUM>.

It is to be noted that the light source member <NUM>, the collimator lens set <NUM>, and the reflector <NUM> are accommodated in the first chamber <NUM> of the sight mount <NUM>. The sight mount <NUM> can protect the light source member <NUM>, the collimator lens set <NUM>, and the reflector <NUM> in the first chamber <NUM> reliably.

The light source member <NUM> is provided at the end of the first chamber <NUM> close to the object side, and configured to emit the light to the collimator lens set <NUM>. Since the light from the light source member <NUM> faces to the eye side, a bright dot of a target basically cannot be observed from the object side, thereby lowering an exposure risk of a shooter. The light source member <NUM> can be stressed to move back and forth along the axial direction of the sight mount <NUM>, thereby adjusting a distance from the light source member to the collimator lens set <NUM>. The light source member <NUM> includes light-emitting element <NUM> for emitting light to the collimator lens set <NUM>, and lamp holder <NUM> for supporting and fixing the light-emitting element <NUM>. An optical axis of the light-emitting element <NUM> is aligned at an optical axis of the collimator lens set <NUM>. The light-emitting element <NUM> may be, but is not limited to, a light-emitting diode (LED) lamp.

The collimator lens set <NUM> is provided in a space of the first chamber <NUM> from the light source member <NUM> to the through opening <NUM>. The collimator lens set <NUM> is configured to refract the light from the light source member <NUM>. Specifically, when the distance from the light source member <NUM> to the collimator lens set <NUM> is an adjusted distance, the light from the light source member <NUM> can be refracted into approximately parallel light by the collimator lens set <NUM>. Based on the adjusted distance, the light source member <NUM> is driven to move close to or away from the collimator lens set <NUM>, thereby adjusting the distance from the light source member <NUM> to the collimator lens set <NUM>, namely changing a refraction effect of the collimator lens set <NUM> for the light from the light source member <NUM>. For example, the light from the light source member <NUM> is refracted into divergent light by the collimator lens set <NUM>.

The reflector <NUM> corresponds to the through opening <NUM>. The reflector <NUM> inclines to a central axis of the first chamber <NUM> and a central axis of the through opening <NUM>. Without a refractive capability, the reflector <NUM> is mainly configured to reflect and deflect light propagated along the first chamber <NUM> to the beam splitter prism <NUM> through the through opening <NUM>.

It is further to be noted that the beam splitter prism <NUM> is limited and accommodated in the second chamber <NUM> of the sight frame <NUM>. The sight frame <NUM> can protect the beam splitter prism <NUM> in the second chamber <NUM> reliably.

The beam splitter prism <NUM> includes the first prism <NUM> and the second prism <NUM> cemented to each other. The cemented plane of the first prism <NUM> and the second prism <NUM> inclines to a central axis of the second chamber <NUM> and the central axis of the through opening <NUM>. The reflective film <NUM> is provided on the cemented plane of the first prism <NUM> and the second prism <NUM>. The reflective film <NUM> is configured to reflect light of a specific wavelength and allow light of other wavelengths to penetrate through. Specifically, the reflective film <NUM> is configured to further reflect light reflected by the reflector <NUM> to the eye side, and allow target light from an end of the second chamber <NUM> close to the object side to penetrate through and transmit to the eye side. The reflective film <NUM> may be provided on the cemented plane of the first prism <NUM> or the cemented plane of the second prism <NUM> in a manner including but not limited to coating.

To sum up, the dot sight provided by the embodiment of the present application basically has the following working principle: The dot sight is adjusted in advance according to a distant target when leaving a factory. As shown in <FIG> and <FIG>, when the dot sight aims at the distant target, light of the distant target enters the eye side through the second chamber <NUM> and the reflective film <NUM> as approximately parallel light. In this case, the axial position of the light source member <NUM> relative to the sight mount <NUM> can keep unchanged to maintain the adjusted distance between the light source member <NUM> and the collimator lens set <NUM>. The light from the light source member <NUM> can be refracted into the approximately parallel light by the collimator lens set <NUM>, reflected to the beam splitter prism <NUM> by the reflector <NUM>, and reflected to the eye side through the reflective film <NUM> on the cemented plane of the first prism <NUM> and the second prism <NUM> of the beam splitter prism <NUM>. For the sake of clear viewing on the target, a human eye automatically adjusts a crystalline lens to image the target on a retina. Since the light from the light source member <NUM> and the light of the distant target are approximately parallel when entering the eye side, the light from the light source member <NUM> and the light of the distant target can be superimposed on the retina for imaging. This can effectively eliminate a parallax, and can effectively ensure and improve an aiming accuracy.

On the contrary, as shown in <FIG> and <FIG>, when the dot sight aims at a close target, light of the close target enters the eye side through the second chamber <NUM> and the reflective film <NUM> as divergent light with a certain divergence angle. In this case, the light source member <NUM> can be driven to move away from or close to the collimator lens set <NUM> relative to the sight mount <NUM> to adjust the distance from the light source member <NUM> to the collimator lens set <NUM>, and adjust a refraction effect of the collimator lens set <NUM> for the light from the light source member <NUM>, until "the light from the light source member <NUM> can be refracted into divergent light by the collimator lens set <NUM>, and when this light is reflected repeatedly to the eye side by the reflector <NUM> and the reflective film <NUM> of the beam splitter prism <NUM>, an incident angle of this light is approximately the same as an angle of the light of the close target for entering the eye side". For the sake of clear viewing on the target, the human eye automatically adjusts the crystalline lens to image the target on the retina. Since the light from the light source member <NUM> and the light of the close target are the divergent light when entering the eye side, and enter the human eye at the approximately same angle, the light from the light source member <NUM> and the light of the close target can be superimposed on the retina for imaging. This can effectively eliminate a parallax, and can effectively ensure and improve an aiming accuracy.

Therefore, according to the dot sight provided by the embodiment of the present application, the light source member <NUM>, the collimator lens set <NUM>, and the reflector <NUM> are provided in the sight mount <NUM>. The beam splitter prism <NUM> is provided in the sight frame <NUM>. The light source member <NUM> emits the light to the collimator lens set <NUM>. The light from the light source member <NUM> is refracted by the collimator lens set <NUM>. The light from the light source member <NUM> is reflected repeatedly to the eye side through the reflector <NUM>, and the reflective film <NUM> on the first prism <NUM> and the second prism <NUM>. This can effectively ensure invisibility of the light source member <NUM> and the light from the light source member, basically cannot observe a bright dot of the target from the object side, and can effectively lower an exposure risk of the shooter. Upon this, according to the dot sight provided by the embodiment of the present application, in response to different aiming distances, by adjusting the axial position of the light source member <NUM> relative to the sight mount <NUM> to adjust a distance from the light source member <NUM> to the collimator lens set <NUM>, a refraction effect of the collimator lens set <NUM> for the light from the light source member <NUM> can further be adjusted. Consequently, the light from the light source member <NUM> and the light of the target have an approximately same incident angle when entering the eye side, and the light from the light source member <NUM> and the light of the target can be superimposed on the retina for imaging. This can effectively eliminate a parallax, can effectively make the parallax fall within an allowed range at different aiming distances, and can effectively ensure and improve the aiming accuracy. Therefore, the dot sight provided by the embodiment of the present application can be applied to an occasion with various aiming distances, and has a wide application range.

In addition, when the existing dot sight aims at the close target, an image at an aiming dot of the dot sight and an image of the target are not superimposed on the retina. In order to clearly view either of the images, the human eye adjusts the crystalline lens continuously. As a result, the eye is easily fatigued, and the dot sight has a poor aiming comfort. In view of this, according to the dot sight provided by the embodiment of the present application, in response to different aiming distances, the axial position of the light source member <NUM> relative to the sight mount <NUM> can be adjusted, the light from the light source member <NUM> and the light of the target can be superimposed on the retina for imaging, and the human eye can automatically adjust the crystalline lens and clearly view the image at the aiming point of the dot sight and the image of the target. This can effectively ensure and improve an aiming comfort of the dot sight, and can effectively reduce fatigue of the eye.

Moreover, the existing dot sight generates different and large parallaxes for different aiming distances. When a side of the existing dot sight close to the eye side is provided with a convertible lens, as long as shaking a head slightly to view the convertible lens, the shooter can obviously view that the aiming point of the dot sight moves quickly, is not aligned at the target, and does not have a fixed relative position in an amplified field of view (FOV). As a result, the shooter is hard to aim at the target. In view of this, in response to different aiming distances, since the axial position of the light source member <NUM> relative to the sight mount <NUM> can be adjusted, the dot sight provided by the embodiment of the present application can eliminate the parallax, and can make the parallax fall within the allowed range at the different aiming distances. When a side of the dot sight close to the eye side is provided with a convertible lens, even though shaking a head to view the convertible lens, the shooter can view the aiming point of the dot sight and the target that are amplified by a certain ratio, are aligned and have fixed relative positions in an amplified FOV. This can effectively ensure and improve the aiming accuracy and the aiming comfort of the shooter. Therefore, the dot sight provided by the embodiment of the present application is particularly used in cooperation with the convertible lens, with more prominent advantages.

Referring to <FIG> and <FIG>, in the embodiment, the light source member <NUM> is threadedly connected to the sight mount <NUM>. Specifically, an inner wall of the first chamber <NUM> of the sight mount <NUM> is provided with an internal thread. An outer side of the lamp holder <NUM> of the light source member <NUM> is provided with an external thread. The lamp holder <NUM> of the light source member <NUM> is threadedly connected to the sight mount <NUM>.

With the above solution, by threadedly connecting the light source member <NUM> to the sight mount <NUM>, the light source member <NUM> and the sight mount <NUM> are assembled conveniently and quickly. Furthermore, by rotating the light source member <NUM> in use, the axial position of the light source member <NUM> relative to the sight mount <NUM> can be adjusted. This is convenient and quick, and facilitates stabilization and fixation of the adjusted axial position of the light source member <NUM> relative to the sight mount <NUM>.

Referring to <FIG> and <FIG>, in the embodiment, the collimator lens set <NUM> includes first lens <NUM>, second lens <NUM>, and third lens <NUM> sequentially arranged from the object side to the eye side and having a refractive capability. The first lens <NUM> and the second lens <NUM> are provided between the light source member <NUM> and the reflector <NUM>. The third lens <NUM> is provided at the through opening <NUM>.

Based on the embodiment, when the light source member <NUM> emits the light to the collimator lens set <NUM>, the light passes through the first lens <NUM>, and is refracted firstly by the first lens <NUM>. The light passes through the second lens <NUM>, and is refracted secondly by the second lens <NUM>. Then, the light reaches the reflector <NUM> and is reflected to the through opening <NUM> by the reflector <NUM>. The light passes through the third lens <NUM> at the through opening <NUM>, and is refracted thirdly by the third lens <NUM>. So far, the collimator lens set <NUM> refracts the light from the light source member <NUM> completely. As shown in <FIG> and <FIG>, by adjusting a distance from the light source member <NUM> to the first lens <NUM>, the refraction effect of the collimator lens set <NUM> for the light from the light source member <NUM> can be changed.

Compared with Embodiment <NUM>, the embodiment can relatively shorten a length of the dot sight.

Certainly, in other possible implementations, the collimator lens set <NUM> may refract the light from the light source member <NUM> with other structural solutions. For example, the collimator lens set <NUM> may include a collimator objective cemented lens, and is not limited thereto in the embodiment.

Referring to <FIG> and <FIG>, in the embodiment, the dot sight further includes a battery (not shown in the figure) and/or solar panel <NUM> electrically connected to the light source member <NUM> and configured to supply power to the light source member <NUM>.

The solar panel <NUM> is preferably provided on a top surface of the sight frame <NUM> or the sight mount <NUM>. This can make the solar panel <NUM> receive solar light to a greater degree, and can improve power storage performance and power supply performance of the solar panel <NUM>.

The battery is optionally provided in the sight mount <NUM>.

When the dot sight is provided with the solar panel <NUM> and the battery at the same time, the dot sight can determine/switch the solar panel <NUM> or the battery through a control plate to supply the power to the light source member.

The embodiment differs from Embodiment <NUM> in:
Referring to <FIG>, in the embodiment, the dot sight further includes inner tube <NUM> provided at the end of the first chamber <NUM> close to the object side, and first adjustment mechanism <NUM> provided at an end of the inner tube <NUM> close to the eye side. First ball head <NUM> is provided convexly at a circumferential side of the inner tube <NUM>. First ball socket <NUM> is provided concavely on a wall of the first chamber <NUM>. The first ball head <NUM> is hinged to the first ball socket <NUM>. The first adjustment mechanism <NUM> is configured to drive the inner tube <NUM> to rotate. Third chamber <NUM> penetrating through the inner tube along an axial direction is formed in the inner tube <NUM>. The light source member <NUM> is provided in the third chamber <NUM>. An axial position of the light source member <NUM> relative to the inner tube <NUM> is adjustable.

It is to be noted that the inner tube <NUM> is provided in the first chamber <NUM>. The first ball head <NUM> of the inner tube <NUM> is hinged to the first ball socket <NUM> and cannot be separated from the first ball socket <NUM>. When an end of the inner tube <NUM> is stressed, the inner tube <NUM> can rotate stably and reliably around the first ball head <NUM> for a certain amplitude.

Penetrating through the sight mount <NUM> and provided at the end of the inner tube <NUM> close to the eye side, the first adjustment mechanism <NUM> may be configured to apply an acting force to the end of the inner tube <NUM> close to the eye side, so as to drive the inner tube <NUM> to rotate around the first ball head <NUM> for a controllable amplitude. Therefore, the optical axis of the light source member <NUM> in the third chamber <NUM> of the inner tube <NUM> is aligned at the optical axis of the collimator lens set <NUM> conveniently and controllably. This can effectively eliminate an assembly error, can effectively ensure and improve an accuracy of a position for the aiming point of the dot sight, and can effectively ensure and improve the aiming accuracy. Referring to <FIG>, the first adjustment mechanism <NUM> includes first ballistic adjusting bolt <NUM> and first windage adjusting bolt <NUM>. Provided at a side of the inner tube <NUM> along a vertical direction, the first ballistic adjusting bolt <NUM> may be configured to apply a vertical acting force to the end of the inner tube <NUM> close to the eye side, so as to realize displacement adjustment of the inner tube <NUM>, the light source member <NUM> and particularly the optical axis of the light source member <NUM> in the vertical direction. Provided at a side of the inner tube <NUM> along a horizontal direction, the first windage adjusting bolt <NUM> may be configured to apply a horizontal acting force to the end of the inner tube <NUM> close to the eye side, so as to realize displacement adjustment of the inner tube <NUM>, the light source member <NUM> and particularly the optical axis of the light source member <NUM> in the horizontal direction. Through the first adjustment mechanism <NUM>, the optical axis of the light source member <NUM> can be aligned at the optical axis of the collimator lens set <NUM> quickly and conveniently.

The light source member <NUM> is provided in the third chamber <NUM> of the inner tube <NUM>. The axial position of the light source member <NUM> relative to the inner tube <NUM> is adjustable. Upon this, by adjusting the axial position of the light source member <NUM> relative to the inner tube <NUM>, the axial position of the light source member <NUM> relative to the sight mount <NUM> can be adjusted, so as to adjust the distance from the light source member <NUM> to the collimator lens set <NUM>, and adjust the refraction effect of the collimator lens set <NUM> for the light from the light source member <NUM>. Consequently, the light from the light source member <NUM> and the light of the target can be superimposed on the retina for imaging. This can effectively eliminate a parallax, can effectively make the parallax fall within an allowed range at different aiming distances, and can effectively ensure and improve the aiming accuracy.

Referring to <FIG>, in the embodiment, the light source member <NUM> is threadedly connected to the inner tube <NUM>. Specifically, an inner wall of the third chamber <NUM> of the inner tube <NUM> is provided with an internal thread. The outer side of the lamp holder <NUM> of the light source member <NUM> is provided with the external thread. The lamp holder <NUM> of the light source member <NUM> is threadedly connected to the inner tube <NUM>.

With the above solution, by threadedly connecting the light source member <NUM> to the inner tube <NUM>, the light source member <NUM> and the inner tube <NUM> are assembled conveniently and quickly. Furthermore, by rotating the light source member <NUM> in use, the axial position of the light source member <NUM> relative to the inner tube <NUM> can be adjusted. This is convenient and quick, and facilitates stabilization and fixation of the adjusted axial position of the light source member <NUM> relative to the inner tube <NUM>.

Since the threaded fit belongs to clearance fit, there is a small clearance between the internal thread of the third chamber <NUM> of the inner tube <NUM> and the external thread of the lamp holder <NUM> of the light source member <NUM>. Therefore, during adjustment, it is necessary to idle the light source member <NUM> to complement the clearance, and then rotate the light source member <NUM> in order to adjust the axial position of the light source member <NUM> relative to the inner tube <NUM>. However, the clearance and the idling action have an impact on an adjustment accuracy.

Referring to <FIG>, in the embodiment, the dot sight further includes first spring <NUM>. The first spring <NUM> is provided in the third chamber <NUM>. Two axially opposite ends of the first spring <NUM> are respectively connected to the light source member <NUM> and the inner tube <NUM>. With the above solution, the two axially opposite ends of the first spring <NUM> respectively elastically abut against the light source member <NUM> and the inner tube <NUM>. Through an elastic abutting force of the first spring <NUM> for the light source member <NUM>, a tooth of the external thread of the light source <NUM> tightly abuts against a tooth of the internal thread of the inner tube <NUM>. This can effectively eliminate the clearance between the external thread of the light source member <NUM> and the internal thread of the inner tube <NUM>, can effectively ensure and improve an adjustment accuracy for the axial position of the light source member <NUM>, and can effectively ensure and improve an accuracy of the dot sight in use.

In addition, when cooperation between the external thread of the light source <NUM> and the internal thread of the inner tube <NUM> is loose for a large thread machining error, looseness between the external thread of the light source member <NUM> and the internal thread of the inner tube <NUM> can also be effectively alleviated or even prevented based on the embodiment, thereby effectively ensuring and improving the adjustment accuracy for the axial position of the light source member <NUM>, and effectively ensuring and improving the accuracy of the dot sight in use.

The embodiment differs from Embodiment <NUM> in:
Referring to <FIG> and <FIG>, in the embodiment, the third chamber <NUM> includes first mounting hole <NUM> and first through hole <NUM> sequentially arranged from the object side to the eye side. In other words, the first mounting hole <NUM> is formed at the end of the inner tube <NUM> close to the object side. The first through hole <NUM> is formed in a bottom of the first mounting hole <NUM>. The first mounting hole <NUM> and the first through hole <NUM> form the third chamber <NUM>.

The dot sight further includes first adjusting rod <NUM> and first pressure ring <NUM>. The first adjusting rod <NUM> is rotatably provided in the first mounting hole <NUM>. The first pressure ring <NUM> is connected to an end of the inner tube <NUM> close to the object side, and restricts the first adjusting rod <NUM> from moving axially along the first mounting hole <NUM>. An end of the first adjusting rod <NUM> close to the eye side is provided with axially extending first connecting hole <NUM>. The light source member <NUM> includes one end connected to the first connecting hole <NUM>, and the other end penetrating through the first through hole <NUM>. The first adjusting rod <NUM> in rotation can drive the light source member <NUM> to move axially relative to the first through hole <NUM>.

It is to be noted that the first adjusting rod <NUM> is provided in the first mounting hole <NUM>, and can rotate around a central axis of the first adjusting rod <NUM> in the first mounting hole <NUM> under an external force.

The first pressure ring <NUM> may be connected to the end of the inner tube <NUM> close to the object side in a manner including but not limited to threaded connection and/or glue bonding. The first pressure ring <NUM> presses and abuts against the first adjusting rod <NUM>, and limits the first adjusting rod <NUM> in the first mounting hole <NUM>. The first pressure ring <NUM> can particularly restricts the first adjusting rod <NUM> from moving axially relative to the first mounting hole <NUM>, and can particularly restrict the first adjusting rod <NUM> from separating from the first mounting hole <NUM>. An end of the first adjusting rod <NUM> close to the object side is exposed out or protruded from an inner race of the first pressure ring <NUM>, so as to drive the first adjusting rod <NUM> to rotate under an external force.

The light source member <NUM> includes one end connected to the first connecting hole <NUM> of the first adjusting rod <NUM>, and the other end penetrating through the first through hole <NUM>. When the first adjusting rod <NUM> rotates under an external force, the light source member <NUM> can move axially relative to the first through hole <NUM>, thereby adjusting the axial position of the light source member <NUM> relative to the inner tube <NUM> and the sight mount <NUM>, adjusting the distance from the light source member <NUM> to the collimator lens set <NUM>, and adjusting the refraction effect of the collimator lens set <NUM> for the light from the light source member <NUM>. Consequently, the light from the light source member <NUM> and the light of the target can be superimposed on the retina for imaging. This can effectively eliminate a parallax, can effectively make the parallax fall within an allowed range at different aiming distances, and can effectively ensure and improve an aiming accuracy.

Compared with Embodiment <NUM>, by rotating the first adjusting rod <NUM>, the light source member <NUM> is driven to move axially in the embodiment. This not only can realize adjustment on the axial position of the light source member <NUM>, but also can keep a region (namely the end of the first adjusting rod <NUM> close to the object side) for the adjustment of the shooter at the axial position basically unchanged, thereby better facilitating the adjustment of the shooter.

Referring to <FIG>, in the embodiment, an end of the light source member <NUM> is threadedly connected to the first connecting hole <NUM>. The first through hole <NUM> is a non-circular hole, and restricts the light source member <NUM> from rotating relative to the first through hole <NUM>. The first through hole <NUM> is the non-circular hole, and may specifically be a polygonal hole or a special-shaped hole. A cross-sectional shape of a portion of the light source member <NUM> penetrating through the first through hole <NUM> is the same as a shape of the first through hole <NUM>.

With the above solution, when the first adjusting rod <NUM> rotates under an external force, since the light source member <NUM> cannot rotate under the restriction of the first through hole <NUM>, the light source member <NUM> can move axially relative to the first through hole <NUM> under driving of a thread of the first connecting hole <NUM> of the first adjusting rod <NUM>, thereby adjusting the axial position of the light source member <NUM> relative to the inner tube <NUM> and the sight mount <NUM>, adjusting the distance from the light source member <NUM> to the collimator lens set <NUM>, and adjusting the refraction effect of the collimator lens set <NUM> for the light from the light source member <NUM>. Consequently, the light from the light source member <NUM> and the light of the target can be superimposed on the retina for imaging. This can effectively eliminate a parallax, can effectively make the parallax fall within an allowed range at different aiming distances, and can effectively ensure and improve an aiming accuracy.

Since the light source member <NUM> only moves axially relative to the first through hole <NUM> and does not rotate relative to the first through hole <NUM>, the embodiment is particularly applied to the light source member <NUM> using a multipoint LED and/or a reticle pattern. As long as the multipoint LED and/or the reticle pattern of the light source member <NUM> is adjusted well in advance before the dot sight leaves the factory, the multipoint LED and/or the reticle pattern of the light source member <NUM> can keep an adjusted state without rotation when the axial position of the light source member <NUM> is adjusted, thereby better ensuring and improving the aiming accuracy. The reticle pattern may be, but is not limited to, a circle-dot reticle pattern, a reticle pattern with a horizontal line and a vertical line, etc..

Since the threaded fit belongs to clearance fit, there is a small clearance between the external thread of the light source member <NUM> and the corresponding internal thread. Therefore, during adjustment, it is necessary to idle for complementing the clearance, and then rotate, in order to adjust the axial position of the light source member <NUM> relative to the inner tube <NUM> and the sight mount <NUM>. However, the clearance and the idling action have an impact on an adjustment accuracy.

Referring to <FIG>, in the embodiment, the dot sight further includes second spring <NUM>. The second spring <NUM> is provided in the first connecting hole <NUM>. Two axially opposite ends of the second spring <NUM> are respectively connected to the light source member <NUM> and the first adjusting rod <NUM>. With the above solution, the two axially opposite ends of the second spring <NUM> respectively elastically abut against the light source member <NUM> and the first adjusting rod <NUM>. Through an elastic abutting force of the second spring <NUM> for the light source member <NUM>, a tooth of the external thread of the light source <NUM> tightly abuts against a tooth of a corresponding internal thread. This can effectively eliminate the clearance between the external thread of the light source member <NUM> and the corresponding internal thread, can effectively ensure and improve an adjustment accuracy for the axial position of the light source member <NUM>, and can effectively ensure and improve an accuracy of the dot sight in use.

In addition, when cooperation between the external thread of the light source <NUM> and the corresponding internal thread is loose for a large thread machining error, looseness between the external thread of the light source member <NUM> and the corresponding internal thread can also be effectively alleviated or even prevented based on the embodiment, thereby effectively ensuring and improving the adjustment accuracy for the axial position of the light source member <NUM>, and effectively ensuring and improving the accuracy of the dot sight in use.

The embodiment differs from Embodiment <NUM> in:
Referring to <FIG>, in the embodiment, the end of the light source member <NUM> is inserted into the first connecting hole <NUM>. The first connecting hole <NUM> is a non-circular hole, and restricts the light source member <NUM> from rotating relative to the first connecting hole <NUM>. The light source member <NUM> is threadedly connected to the first through hole <NUM>. A cross-sectional shape of a portion of the light source member <NUM> inserted into the first connecting hole <NUM> is the same as a shape of the first connecting hole <NUM>. The first connecting hole <NUM> is the non-circular hole, and may specifically be a polygonal hole or a special-shaped hole.

With the above solution, when the first adjusting rod <NUM> rotates under an external force, since the light source member <NUM> cannot deflect under the restiction of the first connecting hole <NUM> of the first adjusting rod <NUM>, the light source member <NUM> rotates synchronously with the first adjusting rod <NUM>. The light source member <NUM> can move axially relative to the first through hole <NUM> under driving of a thread of the first through hole <NUM>, thereby adjusting the axial position of the light source member <NUM> relative to the inner tube <NUM> and the sight mount <NUM>, adjusting the distance from the light source member <NUM> to the collimator lens set <NUM>, and adjusting the refraction effect of the collimator lens set <NUM> for the light from the light source member <NUM>. Consequently, the light from the light source member <NUM> and the light of the target can be superimposed on the retina for imaging. This can effectively eliminate a parallax, can effectively make the parallax fall within an allowed range at different aiming distances, and can effectively ensure and improve an aiming accuracy.

The embodiment differs from Embodiment <NUM> in:
Referring to <FIG>, in the embodiment, the dot sight further includes second spring <NUM>. The second spring <NUM> is provided in the first connecting hole <NUM>. Two axially opposite ends of the second spring <NUM> are respectively connected to the light source member <NUM> and the inner tube <NUM>.

With the above solution, the two axially opposite ends of the second spring <NUM> respectively elastically abut against the light source member <NUM> and the inner tube <NUM>. Through an elastic abutting force of the second spring <NUM> for the light source member <NUM>, a tooth of the external thread of the light source <NUM> tightly abuts against a tooth of a corresponding internal thread. This can effectively eliminate a clearance between the external thread of the light source member <NUM> and the corresponding internal thread, can effectively ensure and improve an adjustment accuracy for the axial position of the light source member <NUM>, and can effectively ensure and improve an accuracy of the dot sight in use.

The embodiment differs from Embodiment <NUM> in:
Referring to <FIG>, in the embodiment, the end of the first chamber <NUM> close to the object side is sequentially provided with second mounting hole <NUM> and second through hole <NUM> from the object side to the eye side. In other words, the second mounting hole <NUM> is formed at the end of the sight mount <NUM> close to the object side. The second through hole <NUM> is formed in a bottom of the second mounting hole <NUM>. The second mounting hole <NUM> and the second through hole <NUM> form the end of the first chamber <NUM> close to the object side.

The dot sight further includes second adjusting rod <NUM> and second pressure ring <NUM>. The second adjusting rod <NUM> is rotatably provided in the second mounting hole <NUM>. The second pressure ring <NUM> is connected to an end of the sight mount <NUM> close to the object side, and restricts the second adjusting rod <NUM> from moving axially along the second mounting hole <NUM>. An end of the second adjusting rod <NUM> close to the eye side is provided with axially extending second connecting hole <NUM>. The light source member <NUM> includes one end connected to the second connecting hole <NUM>, and the other end penetrating through the second through hole <NUM>. The second adjusting rod <NUM> in rotation can drive the light source member <NUM> to move axially relative to the second through hole <NUM>.

It is to be noted that the second adjusting rod <NUM> is provided in the second mounting hole <NUM>, and can rotate around a central axis of the second adjusting rod <NUM> in the second mounting hole <NUM> under an external force.

The second pressure ring <NUM> may be connected to the end of the sight mount <NUM> close to the object side in a manner including but not limited to threaded connection and/or glue bonding. The second pressure ring <NUM> presses and abuts against the second adjusting rod <NUM>, and limits the second adjusting rod <NUM> in the second mounting hole <NUM>. The second pressure ring <NUM> can particularly restrict the second adjusting rod <NUM> from moving axially relative to the second mounting hole <NUM>, and can particularly restrict the second adjusting rod <NUM> from separating from the second mounting hole <NUM>. An end of the second adjusting rod <NUM> close to the object side is exposed out or protruded from an inner race of the second pressure ring <NUM>, so as to drive the second adjusting rod <NUM> to rotate under an external force.

The light source member <NUM> includes one end connected to the second connecting hole <NUM> of the second adjusting rod <NUM>, and the other end penetrating through the second through hole <NUM>. When the second adjusting rod <NUM> rotates under an external force, the light source member <NUM> can move axially relative to the second through hole <NUM>, thereby adjusting the axial position of the light source member <NUM> relative to the sight mount <NUM>, adjusting the distance from the light source member <NUM> to the collimator lens set <NUM>, and adjusting the refraction effect of the collimator lens set <NUM> for the light from the light source member <NUM>. Consequently, the light from the light source member <NUM> and the light of the target can be superimposed on the retina for imaging. This can effectively eliminate a parallax, can effectively make the parallax fall within an allowed range at different aiming distances, and can effectively ensure and improve an aiming accuracy.

Compared with Embodiment <NUM>, by rotating the second adjusting rod <NUM>, the light source member <NUM> is driven to move axially in the embodiment. This not only can realize adjustment on the axial position of the light source member <NUM>, but also can keep a region (namely the end of the second adjusting rod <NUM> close to the object side) for the adjustment of the shooter at the axial position basically unchanged, thereby better facilitating the adjustment of the shooter.

Referring to <FIG>, in the embodiment, the end of the light source member <NUM> is threadedly connected to the second connecting hole <NUM>. The second through hole <NUM> is a non-circular hole, and restricts the light source member <NUM> from rotating relative to the second through hole <NUM>. The second through hole <NUM> is the non-circular hole, and may specifically be a polygonal hole or a special-shaped hole. A cross-sectional shape of a portion of the light source member <NUM> penetrating through the second through hole <NUM> is the same as a shape of the second through hole <NUM>.

With the above solution, when the second adjusting rod <NUM> rotates under an external force, since the light source member <NUM> cannot rotate under the restriction of the second through hole <NUM>, the light source member <NUM> can move axially relative to the second through hole <NUM> under driving of a thread of the second connecting hole <NUM> of the second adjusting rod <NUM>, thereby adjusting the axial position of the light source member <NUM> relative to the sight mount <NUM>, adjusting the distance from the light source member <NUM> to the collimator lens set <NUM>, and adjusting the refraction effect of the collimator lens set <NUM> for the light from the light source member <NUM>. Consequently, the light from the light source member <NUM> and the light of the target can be superimposed on the retina for imaging. This can effectively eliminate a parallax, can effectively make the parallax fall within an allowed range at different aiming distances, and can effectively ensure and improve an aiming accuracy.

Since the light source member <NUM> only moves axially relative to the second through hole <NUM> and does not rotate relative to the second through hole <NUM>, the embodiment is particularly applied to the light source member <NUM> using a multipoint LED and/or a reticle pattern. As long as the multipoint LED and/or the reticle pattern of the light source member <NUM> is adjusted well in advance before the dot sight leaves the factory, the multipoint LED and/or the reticle pattern of the light source member <NUM> can keep an adjusted state without rotation when the axial position of the light source member <NUM> is adjusted, thereby better ensuring and improving the aiming accuracy. The reticle pattern may be, but is not limited to, a circle-dot reticle pattern, a reticle pattern with a horizontal line and a vertical line, etc..

Since the threaded fit belongs to clearance fit, there is a small clearance between the external thread of the light source member <NUM> and the corresponding internal thread. Therefore, during adjustment, it is necessary to idle for complementing the clearance, and then rotate, in order to adjust the axial position of the light source member <NUM> relative to the sight mount <NUM>. However, the clearance and the idling action have an impact on an adjustment accuracy.

Referring to <FIG>, in the embodiment, the dot sight further includes third spring <NUM>. The third spring <NUM> is provided in the second connecting hole <NUM>. Two axially opposite ends of the third spring <NUM> are respectively connected to the light source member <NUM> and the second adjusting rod <NUM>. With the above solution, the two axially opposite ends of the third spring <NUM> respectively elastically abut against the light source member <NUM> and the second adjusting rod <NUM>. Through an elastic abutting force of the third spring <NUM> for the light source member <NUM>, a tooth of the external thread of the light source <NUM> tightly abuts against a tooth of a corresponding internal thread. This can effectively eliminate the clearance between the external thread of the light source member <NUM> and the corresponding internal thread, can effectively ensure and improve an adjustment accuracy for the axial position of the light source member <NUM>, and can effectively ensure and improve an accuracy of the dot sight in use.

The embodiment differs from Embodiment <NUM> in:
Referring to <FIG>, in the embodiment, the end of the light source member <NUM> is inserted into the second connecting hole <NUM>. The second connecting hole <NUM> is a non-circular hole, and restricts the light source member <NUM> from rotating relative to the second connecting hole <NUM>. The light source member <NUM> is threadedly connected to the second through hole <NUM>. A cross-sectional shape of a portion of the light source member <NUM> inserted into the second connecting hole <NUM> is the same as a shape of the second connecting hole <NUM>. The second connecting hole <NUM> is the non-circular hole, and may specifically be a polygonal hole or a special-shaped hole.

With the above solution, when the second adjusting rod <NUM> rotates under an external force, since the light source member <NUM> cannot deflect under the restriction of the second connecting hole <NUM> of the second adjusting rod <NUM>, the light source member <NUM> rotates synchronously with the second adjusting rod <NUM>. The light source member <NUM> can move axially relative to the second through hole <NUM> under driving of a thread of the second through hole <NUM>, thereby adjusting the axial position of the light source member <NUM> relative to the sight mount <NUM>, adjusting the distance from the light source member <NUM> to the collimator lens set <NUM>, and adjusting the refraction effect of the collimator lens set <NUM> for the light from the light source member <NUM>. Consequently, the light from the light source member <NUM> and the light of the target can be superimposed on the retina for imaging. This can effectively eliminate a parallax, can effectively make the parallax fall within an allowed range at different aiming distances, and can effectively ensure and improve an aiming accuracy.

The embodiment differs from Embodiment <NUM> in:
Referring to <FIG>, in the embodiment, the dot sight further includes third spring <NUM>. The third spring <NUM> is provided in the second connecting hole <NUM>. Two axially opposite ends of the third spring <NUM> are respectively connected to the light source member <NUM> and the sight mount <NUM>.

With the above solution, the two axially opposite ends of the third spring <NUM> respectively elastically abut against the light source member <NUM> and the sight mount <NUM>. Through an elastic abutting force of the third spring <NUM> for the light source member <NUM>, a tooth of the external thread of the light source <NUM> tightly abuts against a tooth of a corresponding internal thread. This can effectively eliminate the clearance between the external thread of the light source member <NUM> and the corresponding internal thread, can effectively ensure and improve an adjustment accuracy for the axial position of the light source member <NUM>, and can effectively ensure and improve an accuracy of the dot sight in use.

The embodiment differs from Embodiment <NUM> in:
Referring to <FIG> and <FIG>, in the embodiment, the collimator lens set <NUM> includes first lens <NUM>, second lens <NUM>, and third lens <NUM> sequentially arranged from the object side to the eye side and having a refractive capability. The first lens <NUM>, the second lens <NUM>, and the third lens <NUM> are provided between the light source member <NUM> and the reflector <NUM>.

Based on the embodiment, when the light source member <NUM> emits the light to the collimator lens set <NUM>, the light passes through the first lens <NUM>, and is refracted firstly by the first lens <NUM>. The light passes through the second lens <NUM>, and is refracted secondly by the second lens <NUM>. Then, the light passes through the third lens <NUM>, and is refracted thirdly by the third lens <NUM>. So far, the collimator lens set <NUM> refracts the light from the light source member <NUM> completely before the light reaches the reflector <NUM>. By adjusting a distance from the light source member <NUM> to the first lens <NUM>, a refraction effect of the collimator lens set <NUM> for the light from the light source member <NUM> can be changed.

Referring to <FIG> and <FIG>, an embodiment of the present application further provides a dot sight, including sight mount <NUM>, sight frame <NUM>, light source member <NUM>, reflector <NUM>, beam splitter prism <NUM>, and collimator lens set <NUM>. First chamber <NUM> extending along an axial direction of the sight mount is formed in the sight mount <NUM>. The sight frame <NUM> is provided at a circumferential side of the sight mount <NUM> close to an eye side. Second chamber <NUM> penetrating through the sight frame along an axial direction, and through opening <NUM> communicating the second chamber <NUM> and the first chamber <NUM> are formed in the sight frame <NUM>. The light source member <NUM> is provided at an end of the first chamber <NUM> close to an object side, and configured to emit light to the eye side. The reflector <NUM> is provided in the first chamber <NUM>, and corresponding to the through opening <NUM>. The beam splitter prism <NUM> is provided in the second chamber <NUM>. The beam splitter prism <NUM> includes first prism <NUM> and second prism <NUM> cemented to each other. Reflective film <NUM> is provided on a cemented plane of the first prism <NUM> and the second prism <NUM>. The collimator lens set <NUM> is provided in the first chamber <NUM>. The collimator lens set <NUM> includes first lens <NUM>, second lens <NUM>, and third lens <NUM> sequentially arranged and having a refractive capability. The first lens <NUM> and the second lens <NUM> are provided between the light source member <NUM> and the reflector <NUM>. The third lens <NUM> is provided between the second lens <NUM> and the beam splitter prism <NUM>. The first lens <NUM> and the third lens <NUM> are fixed relative to the sight mount <NUM>. An axial position of the second lens <NUM> relative to the sight mount <NUM> is adjustable.

The light source member <NUM> is provided at the end of the first chamber <NUM> close to the object side, and configured to emit the light to the collimator lens set <NUM>. Since the light from the light source member <NUM> faces to the eye side, a bright dot of a target basically cannot be observed from the object side, thereby lowering an exposure risk of a shooter. An axial position of the light source member <NUM> relative to the sight mount <NUM> is determined and fixed. The light source member <NUM> includes light-emitting element <NUM> for emitting light to the collimator lens set <NUM>, and lamp holder <NUM> for supporting and fixing the light-emitting element <NUM>. An optical axis of the light-emitting element <NUM> is aligned at an optical axis of the collimator lens set <NUM>. The light-emitting element <NUM> may be, but is not limited to, an LED lamp.

The collimator lens set <NUM> is provided in a space of the first chamber <NUM> from the light source member <NUM> to the through opening <NUM>. The collimator lens set <NUM> is configured to refract the light from the light source member <NUM>. The collimator lens set <NUM> includes the first lens <NUM>, the second lens <NUM>, and the third lens <NUM> sequentially arranged and having the refractive capability. The light from the light source member <NUM> may be refracted repeatedly through the first lens <NUM>, the second lens <NUM>, and the third lens <NUM> of the collimator lens set <NUM>. Specifically, as shown in <FIG>, in a first implementation, the first lens <NUM> and the second lens <NUM> are provided between the light source member <NUM> and the reflector <NUM>. The third lens <NUM> is provided at the through opening <NUM>. Upon this, when the light source member <NUM> emits the light to the collimator lens set <NUM>, the light passes through the first lens <NUM>, and is refracted firstly by the first lens <NUM>. The light passes through the second lens <NUM>, and is refracted secondly by the second lens <NUM>. Then, the light reaches the reflector <NUM> and is reflected to the through opening <NUM> by the reflector <NUM>. The light passes through the third lens <NUM> at the through opening <NUM>, and is refracted thirdly by the third lens <NUM>. So far, the collimator lens set <NUM> refracts the light from the light source member <NUM> completely. Referring to <FIG>, in a second implementation, the first lens <NUM>, the second lens <NUM>, and the third lens <NUM> are provided between the light source member <NUM> and the reflector <NUM>. Upon this, when the light source member <NUM> emits the light to the collimator lens set <NUM>, the light passes through the first lens <NUM>, and is refracted firstly by the first lens <NUM>. The light passes through the second lens <NUM>, and is refracted secondly by the second lens <NUM>. Then, the light passes through the third lens <NUM>, and is refracted thirdly by the third lens <NUM>. So far, the collimator lens set <NUM> refracts the light from the light source member <NUM> completely before the light reaches the reflector <NUM>. Compared with the second implementation, a length of the dot sight can be shortened relatively in the first implementation.

The first lens <NUM> and the third lens <NUM> are fixed relative to the sight mount <NUM>. The axial position of the second lens <NUM> relative to the sight mount <NUM> is adjustable. When a distance from the second lens <NUM> to the light source member <NUM> is an adjusted distance, the second lens <NUM> can cooperate with the first lens <NUM> and the third lens <NUM> to refract the light from the light source member <NUM> repeatedly into approximately parallel light. Based on the adjusted distance, the second lens <NUM> is driven to move close to or away from the light source member <NUM>, thereby adjusting the distance from the second lens <NUM> to the light source member <NUM>, namely changing a refraction effect of the collimator lens set <NUM> for the light from the light source member <NUM>. For example, the light from the light source member <NUM> is refracted repeatedly into divergent light.

To sum up, the dot sight provided by the embodiment of the present application basically has the following working principle: The dot sight is adjusted in advance according to a distant target when leaving a factory. When the dot sight aims at the distant target, light of the distant target enters the eye side through the second chamber <NUM> and the reflective film <NUM> as approximately parallel light. In this case, the axial position of the second lens <NUM> relative to the sight mount <NUM> can keep unchanged to maintain the adjusted distance between the light source member <NUM> and the second lens <NUM>. The light from the light source member <NUM> can be refracted repeatedly into the approximately parallel light by the first lens <NUM>, the second lens <NUM> and the third lens <NUM> in the collimator lens set <NUM>, reflected to the beam splitter prism <NUM> by the reflector <NUM>, and reflected to the eye side through the reflective film <NUM> on the cemented plane of the first prism <NUM> and the second prism <NUM> of the beam splitter prism <NUM>. For the sake of clear viewing on the target, a human eye automatically adjusts a crystalline lens to image the target on a retina. Since the light from the light source member <NUM> and the light of the distant target are approximately parallel when entering the eye side, the light from the light source member <NUM> and the light of the distant target can be superimposed on the retina for imaging. This can effectively eliminate a parallax, and can effectively ensure and improve an aiming accuracy.

On the contrary, when the dot sight aims at a close target, light of the close target enters the eye side through the second chamber <NUM> and the reflective film <NUM> as divergent light with a certain divergence angle. In this case, the second lens <NUM> can be driven to move away from or close to the light source member <NUM> relative to the sight mount <NUM> to adjust the distance from the second lens <NUM> to the light source member <NUM>, and adjust a refraction effect of the collimator lens set <NUM> for the light from the light source member <NUM>, until "the light from the light source member <NUM> can be refracted repeatedly into divergent light by the first lens <NUM>, the second lens <NUM> and the third lens <NUM> in the collimator lens set <NUM>, and when this light is reflected repeatedly to the eye side by the reflector <NUM> and the reflective film <NUM> of the beam splitter prism <NUM>, an incident angle of this light is approximately the same as an angle of the light of the close target for entering the eye side". For the sake of clear viewing on the target, the human eye automatically adjusts the crystalline lens to image the target on the retina. Since the light from the light source member <NUM> and the light of the close target are the divergent light when entering the eye side, and enter the human eye at the approximately same angle, the light from the light source member <NUM> and the light of the close target can be superimposed on the retina for imaging. This can effectively eliminate a parallax, and can effectively ensure and improve an aiming accuracy.

Therefore, according to the dot sight provided by the embodiment of the present application, the light source member <NUM>, the collimator lens set <NUM>, and the reflector <NUM> are provided in the sight mount <NUM>. The beam splitter prism <NUM> is provided in the sight frame <NUM>. The light source member <NUM> emits the light to the collimator lens set <NUM>. The light from the light source member <NUM> is refracted by the collimator lens set <NUM>. The light from the light source member <NUM> is reflected repeatedly to the eye side through the reflector <NUM>, and the reflective film <NUM> on the first prism <NUM> and the second prism <NUM>. This can effectively ensure invisibility of the light source member <NUM> and the light from the light source member, basically cannot observe the bright dot of the target from the object side, and can effectively lower an exposure risk of the shooter. Upon this, according to the dot sight provided by the embodiment of the present application, in response to different aiming distances, by adjusting the axial position of the second lens <NUM> of the collimator lens set <NUM> relative to the sight mount <NUM> to adjust a distance from the second lens <NUM> of the collimator lens set <NUM> to the light source element <NUM>, a refraction effect of the collimator lens set <NUM> for the light from the light source member <NUM> can further be adjusted. Consequently, the light from the light source member <NUM> and the light of the target have an approximately same incident angle when entering the eye side, and the light from the light source member <NUM> and the light of the target can be superimposed on the retina for imaging. This can effectively eliminate a parallax, can effectively make the parallax fall within an allowed range at different aiming distances, and can effectively ensure and improve the aiming accuracy. Therefore, the dot sight provided by the embodiment of the present application can be applied to an occasion with various aiming distances, and has a wide application range.

In addition, when the existing dot sight aims at the close target, an image at an aiming dot of the dot sight and an image of the target are not superimposed on the retina. In order to clearly view either of the images, the human eye adjusts the crystalline lens continuously. As a result, the eye is easily fatigued, and the dot sight has a poor aiming comfort. In view of this, according to the dot sight provided by the embodiment of the present application, in response to different aiming distances, the axial position of the second lens <NUM> of the collimator lens set <NUM> relative to the sight mount <NUM> can be adjusted, the light from the light source member <NUM> and the light of the target can be superimposed on the retina for imaging, and the human eye can automatically adjust the crystalline lens and clearly view the image at the aiming point of the dot sight and the image of the target. This can effectively ensure and improve an aiming comfort of the dot sight, and can effectively reduce fatigue of the eye.

Moreover, the existing dot sight generates different and large parallaxes for different aiming distances. When a side of the existing dot sight close to the eye side is provided with a convertible lens, as long as shaking a head slightly to view the convertible lens, the shooter can obviously view that the aiming point of the dot sight moves quickly, is not aligned at the target, and does not have a fixed relative position in an amplified FOV. As a result, the shooter is hard to aim at the target. In view of this, in response to different aiming distances, since the axial position of the second lens <NUM> of the collimator lens set <NUM> relative to the sight mount <NUM> can be adjusted, the dot sight provided by the embodiment of the present application can eliminate the parallax, and can make the parallax fall within the allowed range at the different aiming distances. When a side of the dot sight close to the eye side is provided with a convertible lens, even though shaking a head to view the convertible lens, the shooter can view the aiming point of the dot sight and the target that are amplified by a certain ratio, are aligned and have fixed relative positions in an amplified FOV. This can effectively ensure and improve the aiming accuracy and the aiming comfort of the shooter. Therefore, the dot sight provided by the embodiment of the present application is particularly used in cooperation with the convertible lens, with more prominent advantages.

Referring to <FIG> and <FIG>, in the embodiment, the collimator lens set <NUM> further includes first lens holder <NUM> for mounting the first lens <NUM>, and second lens holder <NUM> for mounting the second lens <NUM>. The first lens holder <NUM> is fixedly provided in the first chamber <NUM>. The second lens holder <NUM> is slidably provided in the first chamber <NUM>.

With the above solution, through the first lens holder <NUM> for mounting the first lens <NUM>, a mounting state of the first lens <NUM> relative to the first lens holder <NUM> is stabilized and fixed. The first lens holder <NUM> is fixedly provided in the first chamber <NUM>, thereby determining and fixing a mounting position and a mounting state of the first lens <NUM> relative to the sight mount <NUM>.

With the above solution, through the second lens holder <NUM> for mounting the second lens <NUM>, a mounting state of the second lens <NUM> relative to the second lens holder <NUM> is stabilized and fixed. The second lens holder <NUM> is slidably provided in the first chamber <NUM>. While an optical axis of the second lens <NUM> is collimated stably, the axial position of the second lens <NUM> relative to the sight mount <NUM> is changed by sliding the second lens holder <NUM>.

Referring to <FIG>, <FIG>, and <FIG>, in the embodiment, third mounting hole <NUM> is formed in a circumferential surface of the sight mount <NUM>. Third through hole <NUM> communicated with the first chamber <NUM> is formed in a bottom of the third mounting hole <NUM>. The third through hole <NUM> is a waist-shaped hole extending along the axial direction of the sight mount <NUM>. The dot sight further includes focusing mechanism <NUM>. The focusing mechanism <NUM> includes focusing handwheel <NUM> and deflector rod <NUM>. The focusing handwheel <NUM> is rotatably provided in the third mounting hole <NUM>, and is restricted from moving axially along the third mounting hole <NUM>. An end of the focusing handwheel <NUM> close to the bottom of the third mounting hole <NUM> is provided with curved groove <NUM>. The curved groove <NUM> extends along a circumferential direction of the focusing handwheel <NUM>. A centerline of the curved groove <NUM> is gradually close to a central axis of the focusing handwheel <NUM>. The deflector rod <NUM> includes one end slidably connected to the curved groove <NUM>, and the other end penetrating through the third through hole <NUM> and connected to the second lens holder <NUM>. The focusing handwheel <NUM> in rotation can drive the second lens holder <NUM> to slide in the first chamber <NUM>.

It is to be noted that the focusing handwheel <NUM> is provided in the third mounting hole <NUM>, is restricted from moving along the axial direction of the third mounting hole <NUM>, and can rotate around a central axis of the focusing handwheel <NUM> in the third mounting hole <NUM> under an external force.

The deflector rod <NUM> includes one end slidably connected to the curved groove <NUM> of the focusing handwheel <NUM>, and the other end fixedly or detachably connected to the second lens holder <NUM> through the third through hole <NUM>. Optionally, the deflector rod <NUM> is threadedly connected to the second lens holder <NUM>. In view of this, when the focusing handwheel <NUM> rotates in a forward direction (relative to a reverse direction hereinafter), the curved groove <NUM> of the focusing handwheel <NUM> can drive the deflector rod <NUM> to slide along a side of the curved groove <NUM> close to the central axis of the focusing handwheel <NUM>. Since the deflector rod <NUM> penetrates through the third through hole <NUM>, the third through hole <NUM> can guide and restrict a moving direction of the deflector rod <NUM>, such that the deflector rod <NUM> can drive the second lens holder <NUM> and the second lens <NUM> to move axially close to the light source member <NUM>. On the contrary, when the focusing handwheel <NUM> rotates in a reverse direction, the curved groove <NUM> of the focusing handwheel <NUM> can drive the deflector rod <NUM> to slide along a side of the curved groove <NUM> away from the central axis of the focusing handwheel <NUM>. Since the deflector rod <NUM> penetrates through the third through hole <NUM>, the third through hole <NUM> can guide and restrict the moving direction of the deflector rod <NUM>, such that the deflector rod <NUM> can drive the second lens holder <NUM> and the second lens <NUM> to move axially away from the light source member <NUM>. Therefore, the axial position of the second lens <NUM> relative to the sight mount <NUM> and the light source member <NUM> can be adjusted quickly and conveniently through the focusing mechanism <NUM>.

Referring to <FIG> and <FIG>, in the embodiment, third connecting hole <NUM> is formed in the bottom of the third mounting hole <NUM>. The focusing mechanism <NUM> further includes locking bolt <NUM>. A nail portion of the locking bolt <NUM> is provided on the focusing handwheel <NUM> in a penetration manner and threadedly connected to the third connecting hole <NUM>. A head portion of the locking bolt <NUM> presses the focusing handwheel <NUM> and restricts the focusing handwheel <NUM> from moving axially along the third mounting hole <NUM>.

Based on the embodiment, the nail portion of the locking bolt <NUM> can be threadedly connected to the third connecting hole <NUM> to stabilize a mounting position and a mounting state of the locking bolt. Upon this, the head of the locking bolt <NUM> can press and abut against the focusing handwheel <NUM>, thereby limiting the focusing handwheel <NUM> in the third mounting hole <NUM>. The locking bolt <NUM> particularly can the focusing handwheel <NUM> from moving axially relative to the third mounting hole <NUM>, and particularly can restrict the focusing handwheel <NUM> from separating from the third mounting hole <NUM>.

Referring to <FIG> and <FIG>, in the embodiment, the dot sight further includes fourth spring <NUM> elastically pressed between the first lens holder <NUM> and the second lens holder <NUM>.

With the above solution, two axially opposite ends of the fourth spring <NUM> can respectively elastically abut against the first lens holder <NUM> and the second lens holder <NUM>, thereby ensuring and improving a stability of the second lens holder <NUM> in axial movement relative to the sight mount <NUM>, and ensuring and improving a stability of an adjusted axial position of the second lens holder <NUM> relative to the sight holder <NUM>.

When the deflector rod <NUM> is threadedly connected to the second lens holder <NUM>, since the threaded fit belongs to clearance fit, there is a small clearance between an external thread of the deflector rod <NUM> and an internal thread of the second lens holder <NUM>. During adjustment, by idling the focusing handwheel <NUM> to complement the clearance between the deflector rod <NUM> and the second lens holder <NUM>, and then rotating the focusing handwheel, the deflector rod <NUM> can drive the second lens holder <NUM> and the second lens <NUM> to move axially relative to the sight mount <NUM> and the light source member <NUM>. Nevertheless, the clearance and the idling action have an impact on an adjustment accuracy. With the above solution, the two axially opposite ends of the fourth spring <NUM> respectively elastically abut against the first lens holder <NUM> and the second lens holder <NUM>. Through an elastic abutting force of the fourth spring <NUM> for the second lens holder <NUM>, the internal thread of the second lens holder <NUM> tightly abuts against the external thread of the deflector rod <NUM>. This can effectively eliminate the clearance between the internal thread of the second lens holder <NUM> and the external thread of the deflector rod <NUM>, can effectively ensure and improve an adjustment accuracy for the axial position of the second lens <NUM>, and can effectively ensure and improve an accuracy of the dot sight in use.

When the deflector rod <NUM> is threadedly connected to the second lens holder <NUM>, and cooperation between the external thread of the deflector rod <NUM> and the internal thread of the second lens holder <NUM> is loose for a large thread machining error, looseness between the external thread of the deflector rod <NUM> and the internal thread of the second lens holder <NUM> can also be effectively alleviated or even prevented with the above solution, thereby effectively ensuring and improving the adjustment accuracy for the axial position of the second lens <NUM>, and effectively ensuring and improving the accuracy of the dot sight in use.

Referring to <FIG> and <FIG>, in the embodiment, second ball head <NUM> is provided convexly at a circumferential side of the light source member <NUM>. Second ball socket <NUM> is provided concavely on a wall of the first chamber <NUM>. The second ball head <NUM> is hinged to the second ball socket <NUM>. The dot sight further includes second adjustment mechanism <NUM> provided at an end of the light source member <NUM> close to the eye side. The second adjustment mechanism <NUM> is configured to drive the light source member <NUM> to rotate.

It is to be noted that the second ball head <NUM> of the light source member <NUM> is hinged to the second ball socket <NUM> and cannot be separated from the second ball socket <NUM>. When an end of the light source member <NUM> is stressed, the light source member <NUM> can rotate stably and reliably around the second ball head <NUM> for a certain amplitude.

Penetrating through the sight mount <NUM> and provided at the end of the light source member <NUM> close to the eye side, the second adjustment mechanism <NUM> may be configured to apply an acting force to the end of the light source member <NUM> close to the eye side, so as to drive the light source member <NUM> to rotate around the second ball head <NUM> for a controllable amplitude. Therefore, the optical axis of the light source member <NUM> is aligned at the optical axis of the collimator lens set <NUM> conveniently and controllably. This can effectively eliminate an assembly error, can effectively ensure and improve an accuracy of a position for the aiming point of the dot sight, and can effectively ensure and improve the aiming accuracy.

Claim 1:
A dot sight, characterized by comprising:
a sight mount (<NUM>), wherein a first chamber (<NUM>) extending along an axial direction of the sight mount (<NUM>) is formed in the sight mount (<NUM>), and an end of the first chamber (<NUM>) close to an object side communicates with the outside;
a sight frame (<NUM>) provided at a circumferential side of the sight mount (<NUM>) close to an eye side, wherein a second chamber (<NUM>) penetrating through the sight frame (<NUM>) along an axial direction, and a through opening (<NUM>) communicating the second chamber (<NUM>) and the first chamber (<NUM>) are formed in the sight frame (<NUM>);
a light source member (<NUM>) provided at the end of the first chamber (<NUM>) close to the object side, and configured to emit light to the eye side, wherein an axial position of the light source member (<NUM>) relative to the sight mount (<NUM>) is adjustable;
a collimator lens set (<NUM>) provided in the first chamber (<NUM>), and provided at a side of the light source member (<NUM>) close to the eye side;
a reflector (<NUM>) provided in the first chamber (<NUM>), and corresponding to the through opening (<NUM>); and
a beam splitter prism (<NUM>) provided in the second chamber (<NUM>), wherein the beam splitter prism (<NUM>) comprises a first prism (<NUM>) and a second prism (<NUM>) cemented to each other, and a reflective film (<NUM>) is provided on a cemented plane of the first prism (<NUM>) and the second prism (<NUM>).