Source: https://patents.google.com/patent/CN105652565A/en
Timestamp: 2020-06-01 06:25:47
Document Index: 145295909

Matched Legal Cases: ['art 523', 'art 523', 'art 523', 'art 523', 'art 523', 'art 555', 'art 555', 'art 555', 'art 555', 'art 555', 'art 555', 'art 555', 'art 555', 'art 555', 'art 555', 'art 555']

CN105652565A - Image protecting appratus and method - Google Patents
Image protecting appratus and method Download PDF
CN105652565A
CN105652565A CN201510836423.1A CN201510836423A CN105652565A CN 105652565 A CN105652565 A CN 105652565A CN 201510836423 A CN201510836423 A CN 201510836423A CN 105652565 A CN105652565 A CN 105652565A
CN201510836423.1A
CN105652565B (en
藤冈哲弥
三川晃尚
金井秀雄
御沓泰成
土屋聪
真下淳
久保良生
2014-11-28 Priority to JP2014242043A priority Critical patent/JP2016102946A/en
2014-11-28 Priority to JP2014-242034 priority
2014-11-28 Priority to JP2014-242043 priority
2014-11-28 Priority to JP2014242034A priority patent/JP2016102945A/en
2015-11-26 Application filed by 株式会社理光 filed Critical 株式会社理光
2016-06-08 Publication of CN105652565A publication Critical patent/CN105652565A/en
2017-12-12 Publication of CN105652565B publication Critical patent/CN105652565B/en
230000003287 optical Effects 0 claims abstract description 71
238000005286 illumination Methods 0 claims description 65
239000005357 flat glasses Substances 0 claims description 3
238000002347 injection Methods 0 claims 2
239000007924 injection Substances 0 claims 2
238000010168 coupling process Methods 0 description 23
G03B21/2046—Positional adjustment of light sources
G02B27/0025—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for optical correction, e.g. distorsion, aberration
An image protecting apparatus includes: an image generating unit incluuding an optical moderate component using a light from a light source to generate an image, an irradiation unit guiding the light to one or more optical members in the image generating unit, a protecting unit protecting the image generated in the image generating unit, a first control unit controls the system to move the image generating unit which can move relative to the irradiation unit, and a second control unit controls the apparatus to move an irridiation zone accoring to movement disstance of the iamge genreating unit, wherein the irridiation zone guides the irradiation unit to a zone under light irradiation in the image generating unit.
Image projection device and image projecting method
The present invention relates to a kind of image projection device and a kind of image projecting method.
Image projection device (taking projector as representative) is well-known, wherein, image generation unit uses the light launched from light source to produce image according to the view data transmitted from the equipment such as PC, digital camera, and the image produced is projected on the devices such as screen by comprising the optical system of multiple lens. Adjusted in order to be convenient to when installing image projection device, in one known technique, the relative position between the projection optical system changing the optical modulation component modulated by the light launched from light source according to figure image signal and projected by the light passing through described optical modulation component.
Such as, Japanese Laid-Open Patent document 2014-134729 discloses a kind of for driving the structure of relative moving mechanism, when detecting that the attitude of device body changes, described structure changes the relative position of optical modulation component and projection optical system, the bottom centre of project image is overlapped each other, to be conducive to adjusting this projector when installing projector with the optical axis of projected light.
But in regular situation, to be illuminated need the whole region illuminating the mobile range of optical modulation component to the irradiation light on optical modulation component. Therefore, a problem of existence is, owing to other region (originally not needing the region irradiated) except optical modulation component also illuminated illumination is penetrated, the illumination efficiency therefore irradiating light reduces.
The object of the present invention solves Problems existing in routine techniques at least in part.
A kind of image projection device, comprising: image generation unit, comprises the optical modulation component using the light launched from light source to produce image; Illumination optics unit, comprises the one or more optical elements photoconduction launched from described light source being caused described image generation unit; Projection unit, projects the image produced by described image generation unit; First control unit, controls, the described image generation unit that can move relative to described illumination optics unit with movement; And the 2nd control unit, control, with the mobile irradiation area of mobile amount according to described image generation unit, the instruction of described irradiation area is directed to, by described illumination optics unit, the region that the light of described image generation unit irradiates.
The image projecting method performed by image projection device, described image projection device comprises: image generation unit, comprises the optical modulation component using the light launched from light source to produce image;Illumination optics unit, comprises the one or more optical elements photoconduction launched from described light source being caused described image generation unit; Projection unit, projects the image produced by described image generation unit. Described image projecting method comprises: perform the first control, the described image generation unit that can move with movement relative to described illumination optics unit; And perform the 2nd control, with the mobile irradiation area of mobile amount according to described image generation unit, the instruction of described irradiation area is directed to, by described illumination optics unit, the region that the light of described image generation unit irradiates.
A kind of image projection device, comprising: image generation unit, comprises the optical modulation component using the light launched from light source to produce image; Illumination optics unit, comprises the one or more optical elements photoconduction launched from described light source being caused described image generation unit; Projection unit, projects the image produced by described image generation unit; First control unit, controls, to rotate the described image generation unit that can rotate relative to described illumination optics unit; And the 2nd control unit, controlling, rotate irradiation area with the rotation amount according to described image generation unit, the instruction of described irradiation area is directed to, by described illumination optics unit, the region that the light of described image generation unit irradiates.
The image projecting method performed by image projection device, described image projection device comprises: image generation unit, comprises the optical modulation component using the light launched from light source to produce image; Illumination optics unit, comprises the one or more optical elements photoconduction launched from described light source being caused described image generation unit; Projection unit, projects the image produced by described image generation unit. Described image projecting method comprises: perform the first control, to rotate the described image generation unit that can rotate relative to described illumination optics unit; And perform the 2nd control, and rotate irradiation area with the rotation amount according to described image generation unit, the instruction of described irradiation area is directed to, by described illumination optics unit, the region that the light of described image generation unit irradiates.
The following detailed explanation of the preferred embodiment of the present invention is read, it is possible to understand above and other objects of the present invention, feature, advantage and technology and industry meaning better by referring to accompanying drawing.
Fig. 1 is the schematic diagram of a kind of image projection device implementing mode;
Fig. 2 is the functional block diagram of the image projection device of described enforcement mode;
Fig. 3 is the skeleton view of the light engine of the image projection device of described enforcement mode;
Fig. 4 is the schematic diagram of the illumination optics unit of described enforcement mode;
Fig. 5 is the internal structure schematic diagram of the projection optical system unit of described enforcement mode;
Fig. 6 is the skeleton view of the image-display units of described enforcement mode;
Fig. 7 is the side-view of the image-display units of described enforcement mode;
Fig. 8 is the skeleton view of the fixed cell of described enforcement mode;
Fig. 9 is the exploded perspective figure of the fixed cell of described enforcement mode;
Figure 10 is the schematic diagram of the supporting structure of the movable panel utilizing described fixed cell that described enforcement mode is described;
Figure 11 is the partial enlargement figure of the supporting structure of the movable panel utilizing described fixed cell that described enforcement mode is described;
Figure 12 is the upward view of the top cover of described enforcement mode;
Figure 13 is the skeleton view of the movable units of described enforcement mode;
Figure 14 is the exploded perspective figure of the movable units of described enforcement mode;
Figure 15 is the skeleton view of the movable panel of described enforcement mode;
Figure 16 is that the movable units of described enforcement mode is removing the skeleton view after movable panel;
Figure 17 is the schematic diagram of the DMD holding structure of the movable units that described enforcement mode is described;
Figure 18 is the schematic diagram of the illumination optics unit that the 2nd kind is implemented mode.
Embodiments of the present invention are described below with reference to accompanying drawings. In the accompanying drawings, identical parts represent with identical label, and the repetitive description thereof will be omitted.
The structure of image projection device
Fig. 1 is the schematic diagram of a kind of projector 1 implementing mode.
Projector 1 is an example of image projection device, comprises launch window 3 and outside interface (I/F) 9, and has the light engine for generation of project image in inside. Such as, in projector 1, when view data transmits from the PC or digital camera that are connected to exterior I/F9, light engine produces project image according to the view data received, and from launch window 3 to screen S project image, as shown in Figure 1.
In the following drawings, X1X2 direction is the width of projector 1, and Y1Y2 direction is its depth direction, and Z1Z2 direction is its height direction. The side being furnished with the launch window 3 of projector 1 can be called upside, and the side contrary with launch window 3 can be called downside.
Fig. 2 is that this implements the functional block diagram of the projector 1 of mode.
As shown in Figure 2, projector 1 comprises power supply 4, main switch SW5, operation unit 7, outside interface (I/F) 9, system control unit 10, fan 20 and light engine 15.
Power supply 4 is connected to city's electricity, is voltage and the frequency of the inside circuit being suitable for projector 1 voltage and frequency inverted, and powers to system control unit 10, fan 20 and light engine 15 etc.
User can use main switch SW5 to carry out the start/power-off operation of projector 1. When power supply 4 is connected to city's electricity by supply lead or similar cable, when main switch SW5 connects, power supply 4 starts each unit to projector 1 and powers, and when main switch SW5 turns off, power supply 4 stops each unit to projector 1 and powers.
Operation unit 7 is button and/or the allied equipment of the various operations that acceptance is undertaken by user, and is such as arranged on the end face of projector 1. Operation unit 7 accepts user operation, such as, regulate the size of project image, tone and focal length. The user operation accepted by operation unit 7 is transferred into system control unit 10.
Exterior I/F9 has the connection terminal being such as connected to PC or digital camera, and the view data transmitted from coupling device is exported to system control unit 10.
System control unit 10 comprises image control unit 11, mobile control unit 12 and irradiation area control unit 13. For convenience of explanation, the function of the present invention is mainly described by way of example at this; But, the function being included in system control unit 10 is not limited to these described functions. In this embodiment, system control unit 10 such as comprises central processing unit (CPU), read-only storage (ROM) and random access memory (RAM), and the function of each unit (image control unit 11, mobile control unit 12 and irradiation area control unit 13) of system control unit 10 realizes by CPU and the RAM cooperation of the program performing to be stored in ROM.But it is not limited to this, such as, it is possible to adopt the structure that the function at least partially of each unit (image control unit 11, mobile control unit 12 and irradiation area control unit 13) of system control unit 10 is realized by special hardware circuit (semiconductor integrated circuit etc.).
The program performed by the system control unit 10 of present embodiment may be configured in the way of the document form can install form or executable format is recorded in computer readable recording medium storing program for performing (such as read-only optical disc (CD-ROM), floppy disk (FD), compact disc recordable (CD-R), digital versatile disk (DVD) and general serial bus (USB) storer) and provides. Alternately, described program may be configured to network (such as internet) provides or distribution. And, each program may be configured to the mode being pre-installed in non-volatile recording medium (such as ROM) and provides.
Image control unit 11 controls, according to by the view data of exterior I/F9 input, the DMD (DMD) 551 being arranged in the image-display units 50 of light engine 15, to be projected to the image in screen S to produce. DMD551 is an example of optical modulation component, and it uses the light launched from light source 30 described hereinafter to produce image. Image-display units 50 is an example of image generation unit. Content will illustrate below more specifically.
Mobile control unit 12 is an example of the first control unit, and it moves the movable units 55 being arranged in image-display units 50, to control the position of DMD551 being arranged in movable units 55. Although its details will illustrate below, but in this example, image-display units 50 can move relative to hereinafter described optical system unit 40, and mobile control unit 12 controls, to move image-display units 50.
Irradiation area control unit 13 is an example of the 2nd control unit, it controls, with the mobile irradiation area of mobile amount according to image-display units 50, the instruction of described irradiation area is directed to, by illumination optics unit 40 described hereinafter, the region that the illumination of image-display units 50 penetrates. Content will illustrate below more specifically.
Fan 20 rotates under the control of system control unit 10, and the light source 30 of cool down optical 15.
Light engine 15 comprises light source 30, illumination optics unit 40, image-display units 50 and projection optical system unit 60, and to screen S project image under the control of system control unit 10.
Light source 30 is such as high voltage mercury lamp, xenon lamp and photodiode (LED), and it uses illumination to penetrate described illumination optics unit 40 under the control of system control unit 10.
Illumination optics unit 40 is an example of illumination optics unit, and it comprises the one or more optical elements for the photoconduction launched from light source 30 being caused image-display units 50. Although its details will illustrate below, but in this embodiment, lighting optical system unit 40 comprises look wheel, light tunnel, relaying lens etc., and the photoconduction launched from light source 30 is caused the DMD551 being arranged in image-display units 50.
Image-display units 50 comprises the fixed cell 51 being fixedly supported and the movable units 55 that can move relative to fixed cell 51. Movable units 55 comprises DMD551, and movable units 55 is controlled by the mobile control unit 12 of system control unit 10 relative to the position of fixed cell 51.DMD551 is controlled by the image control unit 11 of system control unit 10, and it modulates the light guided by illumination optics unit 40, to produce project image.
Projection optical system unit 60 is an example of projection unit, and it projects the image produced by image-display units 50. Such as, projection optical system unit 60 comprises multiple projecting lens, speculum and/or allied equipment, and amplifies the image produced by the DMD551 of image-display units 50, thus image projection in screen S.
The structure of light engine
The following describes the structure of each unit of the light engine 15 of projector 1.
Fig. 3 is that this implements the skeleton view of the light engine 15 of mode. As shown in Figure 3, light engine 15 has light source 30, illumination optics unit 40, image-display units 50 and projection optical system unit 60, and these Plant arrangements are in projector 1.
Light source 30 is arranged in the side of illumination optics unit 40, and launches light along X2 direction. Illumination optics unit 40 causes the photoconduction launched from light source 30 image-display units 50 below being arranged in. Image-display units 50 uses the light guided by illumination optics unit 40 to produce project image. Projection optical system unit 60 is arranged in above illumination optics unit 40, the project image that it is produced to the outer projection of projector 1 by image-display units 50.
This light engine 15 implementing mode is configured to use the light upwards project image launched from light source 30; But, it can also be configured as level ground project image.
Projection optical system unit
Fig. 4 is that this implements the schematic diagram of the illumination optics unit 40 of mode.
As shown in Figure 4, illumination optics unit 40 comprises look wheel 401, light tunnel 402, relaying lens 403 and 404, cylindrical mirror 405 and concave mirror 406. Illumination optics unit 40 also comprises the first actuator 410, described first actuator 410 is an example of the first driving unit, it for vertically (first party to an example, be Z1Z2 direction in the example of fig. 4) mobile light tunnel 402. Illumination optics unit 40 also comprises the 2nd actuator 411, described 2nd actuator 411 is an example of the 2nd driving unit, it is for along the horizontal direction (example of second direction being perpendicular to vertical direction, in the example of fig. 4, it is Y1Y2 direction) mobile light tunnel 402. First actuator 410 and the 2nd actuator 411 are controlled by the irradiation area control unit 13 of system control unit 10. The particular content of the control (the mobile control of irradiation area) that irradiation area control unit 13 carries out will illustrate below.
Look wheel 401 is a disk, and the spectral filter of R (redness), G (green) and B (blueness) color is wherein such as circumferentially in different part. Look takes turns 401 high speed rotating, thus in a time division manner the light launched from light source 30 is divided into RGB color.
Light tunnel 402 is an example of the first optical element, and it is a tubular optics, for making the Luminance Distribution of the light from light source 30 transmitting become consistent. More specifically, light tunnel 402 is a square tube type optics, wherein has the sheet glass being attached on its internal surface. Light tunnel 402 makes the light of the RGB color through look wheel 401 occur on the surface repeatedly to reflect within it, so that Luminance Distribution becomes consistent, and photoconduction is caused relaying lens 403 and 404.
Relaying lens 403 and 404 are the examples of the 2nd optical element, and it converges the light penetrated from light tunnel 402, corrects longitudinal aberration of light simultaneously.
Cylindrical mirror 405 and concave mirror 406 are the examples of the 3rd optical element, they the luminous reflectance penetrated from relaying lens 403 and 404 to the DMD551 being arranged in image-display units 50. At this, the illuminated optical system unit 40 of light launched from light source 30 amplifies, and is directed to DMD551. In other words, the image (having the image of substantially identical with DMD551 size) formed by the light being led to DMD551 is the image that the image by the light penetrated from light tunnel 402 is formed (having the image of the identical size of the cross section substantially exported with light tunnel 402) amplifies prearranged multiple (determining according to the optical system of illumination optics unit 40) and obtain. Hereinafter, described predetermined magnification is called " scale-up factor E ". DMD551 modulation comes from the reflected light of concave mirror 406, to produce project image.
Fig. 5 is that this implements the internal structure schematic diagram of the projection optical system unit 60 of mode.
As shown in Figure 5, projection optical system unit 60 has projecting lens 601, speculum 602 and curved mirror 603, and these parts are arranged in machine shell.
Projecting lens 601 comprises multiple lens, and forms the project image produced by the DMD551 of image-display units 50 on speculum 602. The project image that speculum 602 and curved mirror 603 reflect to form, thus amplify project image, and the projector, image projection amplified to being arranged in the screen S outside projector 1 or on allied equipment.
Image-display units
Fig. 6 is that this implements the skeleton view of the image-display units 50 of mode. Fig. 7 is that this implements the side-view of the image-display units 50 of mode.
As shown in Figure 6 and Figure 7, image-display units 50 comprises the fixed cell 51 being fixedly supported and the movable units 55 that can move relative to fixed cell 51.
The top board 511 of fixed cell 51 including as the first retaining plate and the base plate 512 as the 2nd retaining plate. In fixed cell 51, top board 511 and base plate 512 are arranged parallel to each other, and have predetermined space therebetween, and fixed cell 51 is fixed under illumination optics unit 40.
Movable units 55 comprises: DMD551; As the movable panel 552 of the first movable panel; As the coupling plate 553 of the 2nd movable panel; And heat abstractor 554, and, this movable units 55 is supported by fixed cell 51 in a movable manner.
Movable panel 552 is arranged between the top board 511 of fixed cell 51 and base plate 512, and is supported for by fixed cell 51 and is parallel to top board 511 and base plate 512, thus is supported in a movable manner on the direction being parallel to its surface.
Coupling plate 553 is fixed to movable panel 552 across the base plate 512 of fixed cell 51. Upside coupling plate 553, DMD551 being fixed to coupling plate 553, heat abstractor 554 is fixed to the downside of coupling plate 553. Coupling plate 553 is fixed to movable panel 552, thus is supported by fixed cell 51 in a movable manner with movable panel 552, DMD551 and heat abstractor 554.
DMD551 be arranged in coupling plate 553 closer in the plane of movable panel 552, and arrange in a movable manner with movable panel 552 and coupling plate 553. DMD551 comprises image and produces plane, has multiple removable micro-mirror with dot matrix arranged in form on this plane. The minute surface of the micro-mirror of each of DMD551 is installed around torsion axis with tilting, and according to the figure image signal transmitted from the image control unit 11 of system control unit 10, the micro-mirror of each of DMD551 is driven with ON/OFF (ON/OFF) form.
Such as, when " ON ", the inclination angle of micro-mirror is controlled as and makes micro-mirror reflect the light launched from light source 30 to projection optical system unit 60. Such as, when " OFF ", the inclination angle of micro-mirror is controlled as the direction making micro-mirror be in the light launched to the reflection of OFF tabula rasa (not shown) from light source 30.
In this way, DMD551 is configured to control the inclination angle of each micro-mirror according to the figure image signal transmitted from image control unit 11, and is modulated by the light launched from light source 30 and pass illumination optics unit 40, to produce project image.
Heat abstractor 554 is an example of heat-sink unit, and it is arranged so that it contacts with DMD551 at least partially. Heat abstractor 554 is arranged in the coupling plate 553 being movably supported together with DMD551, thus heat abstractor 554 contacts with DMD551, and this makes DMD551 be cooled efficiently. Based on this kind of structure, implementing in the projector 1 of mode at this, heat abstractor 554 suppresses the temperature rise of DMD551, the generation of the problems such as the malfunctioning or fault caused to reduce the temperature rise because of DMD551.
Fig. 8 is that this implements the skeleton view of the fixed cell 51 of mode. Fig. 9 is that this implements the exploded perspective figure of the fixed cell 51 of mode.
As shown in Figure 8 and Figure 9, fixed cell 51 comprises top board 511 and base plate 512.
Top board 511 and base plate 512 are formed by tabular component respectively, and have centre hole 513 and 514 respectively in the position corresponding with the DMD551 of movable units 55. Top board 511 and base plate 512 are supported for form parallel to each other by multiple strut member 515, have predetermined space between which.
As shown in Figure 9, the upper end of strut member 515 is pressed in the support hole 516 being formed in top board 511, and the lower end being formed with positive thread groove of strut member 515 is inserted in the support hole 517 being formed in base plate 512. Strut member 515 forms predetermined space between top board 511 and base plate 512, and roof supporting 511 and base plate 512 in a parallel manner.
Being formed with multiple support hole 522 and 526 in top board 511 and base plate 512 respectively, wherein each supports hole and pivotally keeps fulcrum ball 521.
The cylinder shape on inner peripheral surface with negative thread groove keeps part 523 to be inserted in the support hole 522 of top board 511. Keeping part 523 pivotally to keep fulcrum ball 521, position adjustment screw rod 524 is inserted into from top and keeps part 523. The support hole 526 of base plate 512 is hidden by cover piece 527 at its lower end, and pivotally keeps fulcrum ball 521.
Supported, by each of top board 511 and base plate 512, the fulcrum ball 521 that hole 522 and 526 pivotally keeps to contact with the movable panel 552 being arranged between top board 511 and base plate 512, support movable panel 552 with removable.
Figure 10 is the schematic diagram of the supporting structure that this movable panel 552 utilizing fixed cell 51 implementing mode is described. Figure 11 is the partial enlargement figure of the contour structure of the part A shown in Figure 10.
As shown in Figure 10 and Figure 11, in top board 511, fulcrum ball 521 is inserted into the maintenance part 523 supported in hole 522 and keeps rotationally. In base plate 512, fulcrum ball 521 is also kept rotationally by support hole 526, and the lower end in described support hole 526 is hidden by cover piece 527.
Fulcrum ball 521 is retained as and it is given prominence to from support hole 522 and 526 at least in part, and contacts with the movable panel 552 being arranged between top board 511 and base plate 512, and supports movable panel 552.The fulcrum ball 521 that movable panel 552 is arranged rotationally is from supported on both sides, thus is supported for and is parallel to top board 511 and base plate 512, and can move along the direction being parallel to its surface.
In the fulcrum ball 521 being on top board 511, change in the position of fulcrum ball 521 side away from movable panel 552 from the amount keeping the lower end of part 523 outstanding according to the position adjustment screw rod 524 contacted with fulcrum ball 521. Such as, when position adjustment screw rod 524 is along the displacement of Z1 direction, the outstanding amount of fulcrum ball 521 reduces, thus the space between top board 511 and movable panel 552 reduces. And, such as, when position adjustment screw rod 524 is along the displacement of Z2 direction, the outstanding amount of fulcrum ball 521 increases, thus the space between top board 511 and movable panel 552 increases.
Like this, the outstanding amount of fulcrum ball 521 is changed with the use of position adjustment screw rod 524, it is possible to suitably adjust the space between top board 511 and movable panel 552.
As shown in Figure 8 and Figure 9, in the plane of base plate 512, it is furnished with magnet 531,532,533 and 534 at top board 511.
Figure 12 is that this implements the upward view of the top board 511 of mode. As shown in figure 12, magnet 531,532,533 and 534 be arranged in top board 511 closer in the plane of base plate 512.
Magnet 531,532,533 and 534 is arranged in four positions, around the centre hole 513 of top board 511. Each among magnet 531,532,533 and 534 is furnished with two cuboid magnets, and it is longitudinally parallel to each other that these two cuboid magnets are arranged as it, and forms the magnetic field to movable panel 552 generation effect.
Magnet 531,532,533 and 534 forms mobile unit, and described mobile unit cooperates with in the end face being arranged in movable panel 552 and towards the coil of magnet 531,532,533 and 534 and moves movable panel 552.
The strut member 515 being arranged in fixed cell 51 and the number of fulcrum ball 521, position etc. are not limited to this configuration shown in enforcement mode, as long as it can support movable panel 552 removablely.
Figure 13 is that this implements the skeleton view of the movable units 55 of mode. Figure 14 is that this implements the exploded perspective figure of the movable units 55 of mode.
As shown in Figure 13 and Figure 14, movable units 55 comprises DMD551, movable panel 552, coupling plate 553, heat abstractor 554, keeps part 555 and DMD substrate 557, and is movably supported relative to fixed cell 51.
As mentioned above, it is necessary, movable panel 552 is arranged between the top board 511 of fixed cell 51 and base plate 512, and along be parallel to surface direction by fulcrum ball 521 removable support.
Figure 15 is that this implements the skeleton view of the movable panel 552 of mode.
As shown in figure 15, movable panel 552 is made up of tabular component, has centre hole 570 in the position corresponding with the DMD551 being arranged in DMD substrate 557, and has the coil 581,582,583 and 584 being arranged in around centre hole 570.
Each coil 581,582,583 and 584 is formed by the electric wire being wound around around the axis being parallel to Z1Z2 direction, and is arranged in the groove of the side closer to top board 511 being formed in movable panel 552, and is hidden by cover piece. Coil 581,582,583 and 584 forms mobile unit, and described mobile unit is used for the mobile movable panel 552 that cooperates with each magnet 531,532,533 and 534 of top board 511.
In the state that movable units 55 is supported by fixed cell 51, the magnet 531,532,533 and 534 of top board 511 and the coil 581,582,583 and 584 of movable panel 552 are in position relative to each other respectively.When electric current flows through coil 581,582,583 and 584, the electric field formed by magnet 531,532,533 and 534 produces lorentz's force, and this lorentz's force is as the motivating force for mobile movable panel 552.
Movable panel 552 be subject between magnet 531,532,533 and 534 and coil 581,582,583 and 584 produce the lorentz's force as motivating force, and on X/Y plane relative to fixed cell 51 straight line ground or displacement rotationally.
Size and the direction of the electric current in each coil 581,582,583 and 584 are controlled by the mobile control unit 12 of system control unit 10. Mobile control unit 12 utilizes size and movement (rotation) direction of direction controlling movable panel 552, mobile amount, rotation angle and/or the similar characteristics of the electric current flowing through each coil 581,582,583 and 584. That is, mobile control unit 12 can control, the image-display units 50 that can move relative to illumination optics unit 40 with movement.
In this embodiment, as the first driving unit, coil 581 and magnet 531 are arranged so that coil 584 and magnet 534 are relative to each other on X1X2 direction. When flowing through coil 581 and coil 584 when electric current, produce along the lorentz's force in X1 direction or X2 direction, as shown in Figure 5. Move along X1 direction or along X2 direction under the effect of the lorentz's force that movable panel 552 produces between coil 581 and magnet 531 and between coil 584 and magnet 534.
In this embodiment, as the 2nd driving unit, coil 582 and magnet 532 are arranged as on X1X2 direction to be parallel to coil 583 and magnet 533, and magnet 532 and magnet 533 are arranged so that it is longitudinally perpendicular to magnet 531 and the longitudinal direction of magnet 534. Based on this kind of structure, when flowing through coil 582 and coil 583 when electric current, produce along Y1 direction or along the lorentz's force in X2 direction, as shown in figure 15.
Move along Y1 direction or along Y2 direction under the effect of the lorentz's force that movable panel 552 produces between coil 582 and magnet 532 and between coil 583 and magnet 533. The effect bottom offset of the lorentz's force of the reverse direction that movable panel 552 produces between coil 582 and magnet 532 and between coil 583 and magnet 533 thus rotate on X/Y plane.
Such as, when electric current flows through thus produces the lorentz's force along Y1 direction between coil 582 and magnet 532 and produce the lorentz's force along Y2 direction between coil 583 and magnet 533, when from top view, movable panel 552 displacement thus rotate along clockwise direction. In addition, when electric current flows through thus produces the lorentz's force along Y2 direction between coil 582 and magnet 532 and produce the lorentz's force along Y1 direction between coil 583 and magnet 533, from top view, movable panel 552 displacement thus rotate in the counterclockwise direction.
In movable panel 552, there is mobile range limiting holes 571 in the location arrangements corresponding with the strut member 515 of fixed cell 51. The strut member 515 of fixed cell 51 is inserted in mobile range limiting holes 571, when movable panel 552 such as significantly moves because of vibration or some unusual condition, mobile range limiting holes 571 starts to contact with strut member 515, thus limits the mobile range of movable panel 552.
As mentioned above, it is necessary, in this embodiment, size or the direction of the electric current of coil 581,582,583 and 584 is flow through in mobile control unit 12 control of system control unit 10, thus movable panel 552 can be moved to the optional position in mobile range.
As mobile unit magnet 531,532,533 with 534 and coil 581,582,583 with 584 number, position etc. can configure by the mode different from the distributing style in this enforcement mode, as long as movable panel 552 can be moved into optional position. Such as, the magnet as mobile unit can be arranged in the end face of top board 511, or is arranged in any plane of base plate 512. Such as, magnet can be adopted to be arranged in movable panel 552 and the coil configuration that is arranged in top board 511 or base plate 512.
The number of mobile range limiting holes 571, position, shape etc. are not limited to this configuration shown in enforcement mode. Such as, the number of mobile range limiting holes 571 can be one or more. The shape of mobile range limiting holes 571 can be different from the shape in this enforcement mode, such as, can be rectangle or circle.
As shown in figure 13, coupling plate 553 is fixed to by the downside (side closer to base plate 512) of movable panel 552 that supports, the removable ground of fixed cell 51. Coupling plate 553 is made up of tabular component, has centre hole in the position corresponding with DMD551, and is fixed to the downside of movable panel 552 in the bend office being positioned at around coupling plate 553 by three screws.
Figure 16 is this movable units 55 implementing mode removing the skeleton view after movable panel 552.
As shown in figure 16, coupling plate 553 is furnished with DMD551 on its top face, and is furnished with heat abstractor 554 on its bottom surface. Coupling plate 553 is fixed to movable panel 552, thus is arranged as and can move relative to fixed cell 51 together with heat abstractor 554 with movable panel 552 and DMD551.
DMD551 is arranged in DMD substrate 557, and DMD substrate 557 is clipped between maintenance part 555 and coupling plate 553, thus DMD551 is fixed to coupling plate 553. As shown in Figure 14 and Figure 16, keep part 555, DMD substrate 557, coupling plate 553 and heat abstractor 554 to be stacked, and fixed by the step screw 560 as stationary installation and the spring as pressurizing device 561.
Figure 17 is the schematic diagram of the DMD holding structure that this movable units 55 implementing mode is described. Figure 17 is the side-view of movable units 55, does not wherein illustrate movable panel 552 and coupling plate 553.
As shown in figure 17, heat abstractor 554 has salient 554a, is fixed in the state of coupling plate 553 at heat abstractor 554, and described salient 554a is by the contacts-side-down of the through hole and DMD551 that are arranged in DMD substrate 557. The salient 554a of heat abstractor 554 can be arranged as the lower position corresponding with DMD551 with DMD substrate 557 and contact.
In order to strengthen the cooling performance of DMD551, the heat transfer sheet of elastically deformable can be arranged between salient 554a and the DMD551 of heat abstractor 554. Utilize described heat transfer sheet can improve the thermal conductivity between salient 554a and the DMD551 of heat abstractor 554, and strengthen heat abstractor 554 to the cooling performance of DMD551.
As mentioned above, it is necessary, keep part 555, DMD substrate 557 and heat abstractor 554 to be stacked, and fixed by step screw 560 and spring 561. When tightening step screw 560, spring 561 is along the compression of Z1Z2 direction, thus spring 561 produces the power F1 along the Z1 direction shown in Figure 17. Due to the power F1 produced by spring 561, heat abstractor 554 is pressed towards DMD551 by the power F2 along Z1 direction.
In this embodiment, step screw 560 and spring 561 are arranged in four positions, and the power F1's that the power F2 being applied on heat abstractor 554 produces with four springs 561 is equal with joint efforts.The power F2 coming from heat abstractor 554 acts on and keeps having on the maintenance part 555 of DMD substrate 557 of DMD551. Therefore, keeping part 555 produces the power F3 along Z2 direction corresponding with the power F2 coming from heat abstractor 554, thus DMD substrate 557 can be maintained between maintenance part 555 and coupling plate 553.
Act on step screw 560 and spring 561 by the power F4 along Z2 direction keeping the power F3 produced in part 555 to cause. Owing to spring 561 is arranged in four positions, the power F4 therefore acted on each spring 561 is equivalent at 1/4th of the power F3 keeping producing in part 555, and final and power F1 balance.
Keep part 555 be can by bending shown in the arrow B in Figure 17 and be formed as the component of leaf spring. Keep part 555 at the pressure flex under action of the salient 554a of heat abstractor 554, and produce heat abstractor 554 along Z2 direction to the power pushed back such that it is able to firmly keep the contact between DMD551 and heat abstractor 554.
As mentioned above, it is necessary, in movable units 55, movable panel 552 and the coupling plate 553 that comprises DMD551 and heat abstractor 554 by fixed cell 51 removable support. The position of movable units 55 is controlled by the mobile control unit 12 of system control unit 10. The heat abstractor 554 contacted with DMD551 is arranged in movable units 55, it is thus possible to the generation of the problems such as the malfunctioning and fault preventing the temperature rise because of DMD551 and causing.
As mentioned above, it is necessary, implement in the projector 1 of mode at this, the DMD551 producing project image is arranged in movable units 55, and the position of DMD551 and movable units 55 is controlled by the mobile control unit 12 of system control unit 10.
Mobile control unit 12 controls the position of movable units 55, making movable units 55 by predetermined cycle (such as corresponding with frame rate during image projection predetermined cycle) high-speed mobile between multiple positions in a certain distance apart from one another, described distance is less than the arranging distance of micro-mirror of DMD551. Now, image control unit 11 sends figure image signal to DMD551, thus produces the project image according to each displacement.
Such as, mobile control unit 12 makes DMD551 move back and forth between position P1 in a certain distance apart from one another and position P2 by the predetermined cycle, the arranging distance of micro-mirror that described distance is less than DMD551 on X1X2 direction and Y1Y2 direction. Now, image control unit 11 controls DMD551, thus produces the project image according to each displacement so that about the resolving power of project image can be the twice of the resolving power of DMD551. In addition, by increasing the mobile position of DMD551, the resolving power of project image can be made to be the twice of resolving power or more of DMD551.
In this way, mobile control unit 12 makes DMD551 move by the predetermined cycle together with movable units 55, and image control unit 11 produces project image according to the position of DMD551, this makes the image of projection have the resolving power higher than the resolving power of DMD551.
And, to implement in the projector 1 of mode at this, mobile control unit 12 controls, and DMD551 is rotated together with movable units 55, thus rotatable project image, simultaneously without the need to reducing project image. Such as, in the projector that image generation unit (such as DMD551) is stationary unit, unless reduction project image, otherwise the aspect ratio of project image cannot be kept while rotating project image. In contrast, implementing in the projector 1 of mode at this, DMD551 is rotating, therefore rotatable project image, and adjustable inclination etc., and without the need to reducing project image.
As mentioned above, it is necessary, implement in the projector 1 of mode at this, DMD551 is configured to movably, and this allows project image to have very high resolving power. The heat abstractor 554 of cooling DMD551 is combined in movable units 55 together with DMD551, like this, by contacting with DMD551, it is possible to realizes cooling efficiently, thus suppresses the temperature rise of DMD551. Therefore, in projector 1, it is possible to the problems such as the malfunctioning and fault that minimizing causes because of the temperature rise of DMD551.
The mobile control of irradiation area
In this embodiment, the irradiation area control unit 13 of system control unit 10 controls, with the mobile irradiation area of mobile amount according to image-display units 50, described irradiation area indicates the region that illuminated optical system unit 40 is directed to the illumination of image-display units 50 and penetrates. Saying more accurately, irradiation area control unit 13 carries out controlling with mobile described irradiation area, thus mobile after irradiation area corresponding with the DMD551 in the image-display units 50 after movement. Thus, without the need to the size of described irradiation area is set to size corresponding to the whole area of the mobile range with DMD551 (size suitable with DMD551 is just enough), and the phenomenon that any region except DMD551 (originally without the need to illuminated region) illuminated illumination is penetrated can be suppressed. Therefore, implement mode according to this, it is possible to improve the illumination efficiency of the irradiation light exposing to DMD551.
In this example, irradiation area control unit 13 controls, with the mobile light tunnel 402 of mobile amount according to image-display units 50. Say more accurately, irradiation area control unit 13 controls, so that light tunnel 402 is moved certain numerical value, described numerical value is that the inverse of scale-up factor E by the mobile amount of image-display units 50 is multiplied by the magnification that instruction image-display units 50 amplifies the light launched from light source 30 obtains. In this example, irradiation area control unit 13 is according to mobile amount control first actuator 410 of image-display units 50 or the 2nd actuator 411, thus mobile light tunnel 402. As mentioned above, it is necessary, this enforcement mode is configured to make two actuators (410,411) be arranged as moves light tunnel 402 along two orthogonal directionss, thus corresponding with two dimensional planes as plane of reflection (surface penetrated by irradiation illumination) of DMD551.
Such as, irradiation area control unit 13 obtains control signal from mobile control unit 12, to control the travel direction of movable panel 552, mobile amount and/or similar characteristics, from the mobile amount of control signal detection DMD551 (image-display units 50) obtained and travel direction, and calculate make mobile after irradiation area with mobile after DMD551 corresponding needed for the mobile of light tunnel 402 measure and travel direction. Irradiation area control unit 13 controls the first actuator 410 or the 2nd actuator 411 so that light tunnel 402 is mobile by the mobile amount calculated along the travel direction calculated. Such as, when image-display units 50 is along the direction miles of relative movement p corresponding with the upward direction (the Z1 direction in the example of Fig. 4) in light tunnel 402, irradiation area control unit controls the first actuator 410 so that light tunnel 402 moves up distance p �� 1/E. And, such as, when image-display units 50 is along the direction miles of relative movement q corresponding with the left direction (the Y2 direction in the example of Fig. 4) in light tunnel 402, irradiation area control unit 13 controls the 2nd actuator 411 so that light tunnel 402 is moved to the left distance q �� 1/E.
As mentioned above, mode is implemented according to this, even if DMD551 is moved, it is also possible to unanimously irradiate DMD551, and illumination efficiency can not be reduced, and, compared with usual manner, when using identical light to input, this movement that can realize DMD551 is (namely, the movement of projected position), and luminance-reduction can not be caused.
It is the above-mentioned enforcement mode of the present invention although described herein, but this enforcement mode is only exemplary, therefore should not be considered as limiting the scope of the invention. The present invention is not limited to described embodiment, in implementation phase, implements the present invention by revising parts without departing from the spirit and scope of the invention. And, by being suitably combined in multiple parts disclosed in described enforcement mode, it is possible to form the various forms of the present invention. Such as, some parts can be omitted from the parts shown in described enforcement mode.
Illumination optics unit
Figure 18 is the schematic diagram of the illumination optics unit 40 that the 2nd kind is implemented mode.
As shown in figure 18, illumination optics unit 40 comprises look wheel 401, light tunnel 402, relaying lens 403 and 404, cylindrical mirror 405 and concave mirror 406. Illumination optics unit 40 also comprises actuator 412, and described actuator 412 is the example driving unit, and it is for rotating light tunnel 402. Actuator 412 is controlled by the irradiation area control unit 13 of system control unit 10. The particular content of the control (the rotation control of irradiation area) undertaken by irradiation area control unit 13 will illustrate below.
Cylindrical mirror 405 and concave mirror 406 are the examples of the 3rd optical element, they the luminous reflectance penetrated from relaying lens 403 and 404 to the DMD551 being arranged in image-display units 50. DMD551 modulation comes from the reflected light of concave mirror 406, to produce project image.
The rotation control of irradiation area
In this embodiment, the irradiation area control unit 13 of system control unit 10 controls, rotating irradiation area with the rotation amount according to image-display units 50, described irradiation area indicates the region that illuminated optical system unit 40 is directed to the illumination of image-display units 50 and penetrates. Saying more accurately, irradiation area control unit 13 carries out controlling to rotate described irradiation area, thus rotate after irradiation area with rotation after image-display units 50 in DMD551 corresponding. Thus, without the need to the size of described irradiation area is set to size corresponding to the whole area of the rotatable scope with DMD551 (size suitable with DMD551 is just enough), and the phenomenon that any region except DMD551 (originally without the need to illuminated region) illuminated illumination is penetrated can be suppressed.Therefore, implement mode according to this, it is possible to improve the illumination efficiency of the irradiation light exposing to DMD551.
In this example, irradiation area control unit 13 controls, and rotates light tunnel 402 with the rotation amount according to image-display units 50. Saying more accurately, irradiation area control unit 13 carries out controlling to rotate light tunnel 402 so that the rotation amount in light tunnel 402 is identical with the rotation amount of image-display units 50.
In this example, irradiation area control unit 13 is according to the rotation amount control actuator 412 of image-display units 50, thus rotates light tunnel 402. Such as, irradiation area control unit 13 obtains control signal from mobile control unit 12, to control the turning direction of movable panel 552, to rotate angle and/or similar characteristics, from the rotation amount of control signal detection DMD551 (image-display units 50) obtained and turning direction, and calculate make the irradiation area after rotation corresponding with the DMD551 after rotation needed for the rotation amount in light tunnel 402 and in this example, turning direction (described rotation amount is identical with turning direction with the rotation amount of image-display units 50 with turning direction). Then, irradiation area control unit 13 controls actuator 412 so that light tunnel 402 rotates along the turning direction calculated by the rotation amount calculated. Actuator 412 is configured to light tunnel 402 is rotated around the axis (as rotation axis) of the coffin in light tunnel 402, to respond the rotating operation of the center around DMD551 (as rotating axis).
As mentioned above, mode is implemented according to this, even if DMD551 is rotated, it is also possible to unanimously irradiate DMD551, and illumination efficiency can not be reduced, and, compared with usual manner, when using identical light to input, this rotation that can realize DMD551 is (namely, the rotation of projection attitude), and luminance-reduction can not be caused.
Mode is implemented, it is possible to improve the illumination efficiency of the irradiation light exposing to optical modulation component according to one.
To the cross reference of related application
The right of priority of Japanese patent application 2014-242043 that present patent application requires the Japanese patent application 2014-242034 submitted in Japan on November 28th, 2014 and submits in Japan on November 28th, 2014, the complete content of these Japanese patent applications is combined in this by reference.
In order to comprehensively, clearly openly, the present invention illustrates with reference to particular implementation, but claims do not implement the restriction of mode by these, those skilled in the art are not departing under the prerequisite of basic instruction as herein described all modifications made and are changing the scope that should belong to the present invention.
Image generation unit, comprises the optical modulation component using the light launched from light source to produce image;
Illumination optics unit, comprises the one or more optical elements photoconduction launched from described light source being caused described image generation unit;
Projection unit, projects the image produced by described image generation unit;
First control unit, controls, the described image generation unit that can move relative to described illumination optics unit with movement; With
2nd control unit, controls, and with the mobile irradiation area of mobile amount according to described image generation unit, the instruction of described irradiation area is directed to, by described illumination optics unit, the region that the light of described image generation unit irradiates.
2. image projection device as claimed in claim 1, wherein, described 2nd control unit carries out controlling with mobile described irradiation area, thus mobile after irradiation area with move after image generation unit in optical modulation component corresponding.
3. image projection device as claimed in claim 1 or 2, wherein, described illumination optics unit comprises:
First optical element is tubular optics, for making the Luminance Distribution of the light launched from described light source become consistent;
2nd optical element, converges the light from described first optical element injection, corrects longitudinal aberration of light simultaneously; With
3rd optical element, the light to the reflection of described image generation unit from described 2nd optical element injection,
Described 2nd control unit controls, with mobile described first optical element of mobile amount according to described image generation unit.
4. image projection device as claimed in claim 3, wherein, described 2nd control unit controls, so that described first optical element is moved certain numerical value, the inverse that described numerical value is the scale-up factor of the magnification by the mobile amount of described image-display units being multiplied by the light that instruction described illumination optics unit amplification is launched from light source obtains.
5. image projection device as described in claim 3 or 4, also comprises:
First driving unit, along first party to mobile described first optical element; With
2nd driving unit, along be perpendicular to described first party to second direction move described first optical element,
Wherein, the described 2nd described first driving unit of control unit control or described 2nd driving unit, thus mobile described first optical element of mobile amount according to described image generation unit.
6. image projection device as claimed in claim 5, wherein, described first driving unit and the 2nd drives each among unit to be actuator.
7., such as image projection device as described in any one in claim 4 to 6, wherein, described first optical element is square tube type optics, has the sheet glass of the internal surface being bonded to the party's tubular optical parts in the party's tubular optical parts.
8. the image projecting method performed by image projection device, described image projection device comprises:
Illumination optics unit, comprises the one or more optical elements photoconduction launched from described light source being caused described image generation unit; With
Projection unit, projects the image produced by described image generation unit, and described image projecting method comprises:
Perform the first control, the described image generation unit that can move with movement relative to described illumination optics unit; And
Performing the 2nd control, with the mobile irradiation area of mobile amount according to described image generation unit, the instruction of described irradiation area is directed to, by described illumination optics unit, the region that the light of described image generation unit irradiates.
9. an image projection device, comprising:
First control unit, controls, to rotate the described image generation unit that can rotate relative to described illumination optics unit; With
2nd control unit, controls, and rotates irradiation area with the rotation amount according to described image generation unit, and the instruction of described irradiation area is directed to, by described illumination optics unit, the region that the light of described image generation unit irradiates.
10. image projection device as claimed in claim 9, wherein, described 2nd control unit carries out controlling to rotate described irradiation area, thus irradiation area after rotating is corresponding with the optical modulation component in the image generation unit after rotation.
11. 1 kinds of image projecting methods performed by image projection device, described image projection device comprises:
Perform the first control, to rotate the described image generation unit that can rotate relative to described illumination optics unit; And
Performing the 2nd control, rotate irradiation area with the rotation amount according to described image generation unit, the instruction of described irradiation area is directed to, by described illumination optics unit, the region that the light of described image generation unit irradiates.
CN201510836423.1A 2014-11-28 2015-11-26 Image projection device and image projecting method CN105652565B (en)
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JP2014-242034 2014-11-28
JP2014-242043 2014-11-28
JP2014242034A JP2016102945A (en) 2014-11-28 2014-11-28 Image projection device, image projection method, and program
CN105652565A true CN105652565A (en) 2016-06-08
CN105652565B CN105652565B (en) 2017-12-12
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