CN106997140B - Video generation device and image projection device - Google Patents
Video generation device and image projection device Download PDFInfo
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- CN106997140B CN106997140B CN201710022350.1A CN201710022350A CN106997140B CN 106997140 B CN106997140 B CN 106997140B CN 201710022350 A CN201710022350 A CN 201710022350A CN 106997140 B CN106997140 B CN 106997140B
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- movable plate
- fixed plate
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- generation device
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/005—Projectors using an electronic spatial light modulator but not peculiar thereto
- G03B21/008—Projectors using an electronic spatial light modulator but not peculiar thereto using micromirror devices
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Projection Apparatus (AREA)
- Transforming Electric Information Into Light Information (AREA)
Abstract
The present invention relates to video generation device and image projection devices, and its object is to improve projected image shift action stability.The mobile unit that video generation device of the invention has the fixed cell comprising the first fixed plate and the second fixed plate and can move under fixed cell bearing, the mobile unit includes the first movable plate, it is supported, can be moved between first fixed plate and second fixed plate；Second movable plate is set as clipping first fixed plate between first movable plate；Image production part is located on second movable plate, for generating image；And connection bearing part, it is set as clipping second fixed plate between first movable plate, be connected with first movable plate, support second movable plate.
Description
Technical field
The present invention relates to video generation device and image projection devices.
Background technique
High-speed mobile can be passed through in the upper image projection device for carrying out image projection such as screen according to input image data
Projected image allows projected image slightly to deviate, to improve the resolution ratio of projected image in virtual manner.
For example, patent document 1 (JP Tetsukai 2004-180011 bulletin) discloses a kind of image display device, utilize
Pixel-shift mode carrys out offset pixels so that optical axis is moved relative to the light of multiple pixel emissions of display element, thus
It can show the image of resolution ratio more higher than the resolution ratio that display element has originally.
As described above, making projected image mobile, when resolution ratio to improve projected image, high-precision control is needed
The position of projected image.And if the shift action of projected image is unstable, the resolution ratio for improving projected image is not simply failed to, instead
And it is likely to decrease picture quality.
Summary of the invention
In view of the above problems, the present invention provides a kind of video generation device, mobile dynamic its object is to improve projected image
The stability of work.
Video generation device of the invention has the fixed cell comprising the first fixed plate and the second fixed plate and in institute
The lower mobile unit that can be moved of fixed cell bearing is stated, the mobile unit includes the first movable plate, is supported, can
It is moved between first fixed plate and second fixed plate；Second movable plate, be set as with first movable plate it
Between clip first fixed plate；Image production part is located on second movable plate, for generating image；And connection
Bearing part is set as clipping second fixed plate between first movable plate, be connected with first movable plate,
Support second movable plate.Effect of the invention is that being capable of providing the image for improving projected image offset motion stability
Generating means.
Detailed description of the invention
Fig. 1 is the schematic diagram for the projector that first embodiment is related to.
Fig. 2 is the structural module diagram for the projector that first embodiment is related to.
Fig. 3 is the perspective view for the light engine that first embodiment is related to.
Fig. 4 is the schematic diagram for the illumination optics unit that first embodiment is related to.
Fig. 5 is the schematic diagram for the projecting optical unit Inner Constitution that first embodiment is related to.
Fig. 6 is the perspective view for the image generation unit that first embodiment is related to.
Fig. 7 is the side view for the image generation unit that first embodiment is related to.
Fig. 8 is the stereogram exploded view for the fixed cell that first embodiment is related to.
Fig. 9 is the supporting structure schematic diagram for the fixed cell bearing movable plate that first embodiment is related to.
Figure 10 is the schematic diagram of the bottom surface for the top plate that first embodiment is related to.
Figure 11 is the stereogram exploded view for the mobile unit that first embodiment is related to.
Figure 12 is the schematic diagram for the movable plate upper surface that first embodiment is related to.
Figure 13 is the schematic diagram of the bottom surface for the DMD substrate that first embodiment is related to.
Figure 14 is the side view for the mobile unit that first embodiment is related to.
Figure 15 is the side view of the mobile unit of second embodiment.
Specific embodiment
Embodiments of the present invention are described below with reference to attached drawing.Have mutually isostructural part using identical in each width attached drawing
Label, and omit repeated description.
<first embodiment>
The composition of image projection device
Fig. 1 is the schematic diagram for the projector 1 that first embodiment is related to.
Projector 1 is an example image projection device, has and projects window 3 and Peripheral Interface (I/F) 9, and inside is equipped with and uses next life
At the light engine of projected image.Projector 1 is receiving the personal computer or digital camera for example connected by Peripheral Interface 9
After the image data of transmission, projected image is generated according to the image data received by light engine, then by image P such as Fig. 1 institute
Show, is projected in screen S from window 3 is projected.
In the following figures, using the direction X1X2 as the length direction of projector 1, the direction Y1Y2 is the width of projector 1
Direction, the direction Z1Z2 are the short transverse of projector 1.And in the following description, it is with 3 one side of injection window of projector 1
Upside, a side opposite with window is projected are downside.
Fig. 2 is the structural module diagram for the projector 1 that first embodiment is related to.
As shown in Fig. 2, projector 1 have power supply 4, main switch SW5, operation portion 7, Peripheral Interface 9, systems control division 10,
Ventilation fan 20, light engine 15.
Power supply 4 connects public power, and voltage and frequency conversion are arrived and used for 1 internal circuit of projector, to being
The power supplies such as system control unit 10, ventilation fan 20 and light engine 15.
The ON/OFF that main switch SW5 carries out projector 1 for user is operated.Pass through power lead and public power in power supply 4
In the state of connection, main switch SW5 to ON is operated, then power supply 4 starts to power to each portion of projector 1, and operates main switch SW5
To OFF, then power supply 4 stops powering to each portion of projector 1.
Operation portion 7 is the key button for receiving the various operations of user, set on the upper surface of such as projector 1.Operation portion 7 connects
It is operated by such as user about the size of projected image, color, focusing etc..The user's operation that operation portion 7 is accepted is sent to system
Control unit 10.
Peripheral Interface 9 has connection connection terminal such as personal computer, digital camera, will send from connection equipment
Image data be output to systems control division 10.
Systems control division 10 has image control portion 11 and drive control part 12.Systems control division 10 including, for example, CPU,
ROM, RAM etc..Cooperated by CPU with RAM the program for executing and being stored in ROM, realizes the various functions of systems control division 10.
According to the image data inputted from Peripheral Interface 9, the image that control is set to light engine 15 is raw in image control portion 11
At the Digital Micromirror Device DMD (Digital Micromirror Device, hereinafter referred to as DMD) 551 in unit 50, generate
For projecting to the image in screen S.
Drive control part 12 is for controlling so that be configured to mobile mobile unit 55 in image generation unit 50
Mobile driving portion occurs, so that control is set to the position of the DMD551 in mobile unit 55.Ventilation fan 20 is in systems control division
It is rotated under 10 control, for cooling down the light source 30 of light engine 15.
Light engine 15 has light source 30, illumination optics unit 40, image generation unit 50, projecting optical unit 60,
It is projected image onto screen S under the control of systems control division 10.
Light source 30 is used such as mercury high-pressure lamp, xenon lamp, LED, under the control of systems control division 10, to illumination light
Learn 40 irradiation light of unit.
Illumination optics unit 40 has the element such as colored runner, session element, relay lens, for penetrating light source 30
Light out is directed on the DMD551 on image generation unit 50.
Image generation unit 50 is an example video generation device, is had by fixed supported fixed cell 51 and can
The mobile unit 55 moved under the bearing of the fixed cell 51.Mobile unit 55 have DMD551, mobile unit 55 relative to
Control of the position of fixed cell 51 by the drive control part 12 of systems control division 10.DMD551 is an example image production part,
The control in the image control portion 11 by systems control division 10 is modulated the light guided by illumination optics unit 40, raw
At projected image.Projecting optical unit 60 is an example Projection Division, such as with multiple projecting lens, reflecting mirror etc., and image is raw
Amplify at the image that the DMD551 of unit 50 is generated and projects in screen S.
<composition of light engine>
The part that the light engine 15 of projector 1 is described below is constituted.
Fig. 3 is the perspective view for the light engine 15 that first embodiment is related to.As shown in figure 3, light engine 15 has light
Source 30, illumination optics unit 40, image generation unit 50, projecting optical unit 60, are located at the inside of projector 1.
Light source 30 is set to the side of illumination optics unit 40, to the direction X2 irradiation light.Illumination optics unit 40 is by light source 30
The light of transmitting is directed to the image generation unit 50 set on lower section.Image generation unit 50 is guided with by illumination optics unit 40
Photogenerated projected image.Projecting optical unit 60 is located at the top of illumination optics unit 40, and image generation unit 50 is raw
At projector, image projection to projector 1 other than.
In addition to this light engine 15 of the present embodiment upward projected image of light that light source 30 emits may be used also
With projected image in the horizontal direction.
<illumination optics unit>
Fig. 4 is the schematic diagram for the illumination optics unit 40 that first embodiment is related to.
As shown in figure 4, illumination optics unit 40 have colored runner 401, session element 402, relay lens 403 and 404,
Cylindricality mirror 405, concave mirror 406.
Colored runner 401 is that different piece for example in a circumferential direction is equipped with R (red), G (green), B (blue) respectively
The disk of color colour filter.401 high-speed rotation of colour runner is divided into RBG various colors when by light that light source 30 emits.
Such as glass plate etc. is bonded together to the session element 402 of composition quadrangle barrel shape.In the interior table of session element 402
On face, through colored runner 401 RGB white light by multipath reflection, after intensity profile becomes uniformly, it is saturating to be directed into relaying
Mirror 403 and 404.
The axial chromatic aberration for the light that relay lens 403 and 404 pair is projected from session element 402 compensates and converging light.
Cylindricality mirror 405 and concave mirror 406 reflect the light projected from relay lens 403 and 404, so that light emission is generated toward image
DMD551 on unit 406.DMD551 is modulated the reflected light from concave mirror 406, generates projected image.
<projecting optical unit>
Fig. 5 is the schematic diagram of the Inner Constitution for the projecting optical unit 60 that first embodiment is related to.
As shown in figure 5, projecting optical unit 60 includes projecting lens 601, the reflecting mirror 602, curved surface in the portion that is set in the housing
Mirror 603.
Projecting lens 601 has multi-disc lens, so that the projected image that the DMD551 of image generation unit 50 is generated is anti-
It penetrates on mirror 602 and is imaged.The projected image of 603 catoptric imaging of reflecting mirror 602 and curved mirror is amplified the projected image, is projected to
In the screen S except projector 1.
<image generation unit>
Fig. 6 is the perspective view for the image generation unit 50 that first embodiment is related to.Fig. 7 is that first embodiment is related to
The side view of image generation unit 50.A part of element in display image generation unit 50 is omitted in Fig. 7.
As shown in Figure 6 and Figure 7, image generation unit 50 has fixed cell 51 and mobile unit 55.Fixed cell 51 by
To the fixed bearing of illumination optics unit 40.Mobile unit 55 can move under the bearing of fixed cell 51.
Fixed cell 51 has the top plate 511 as the first fixed plate, substrate 512, the Yi Jizuo as the second fixed plate
For the subplate 513 (in Fig. 6 not shown) of third fixed plate.Top plate 511 and substrate 512 are arranged in parallel, and are separated by specified gap.
513 lamination of subplate is in 511 upper surface of top plate.Fixed cell 51 has above-mentioned composition, and is fixed on illumination optics unit 40
Lower section.
Mobile unit 55 have DMD551, as the DMD substrate 552 of the second movable plate, as the movable of the first movable plate
Plate 553 (not shown in Fig. 6), as connection bearing part radiator 554, can be moved under the bearing of fixed cell 51.
DMD551 is set to the upper surface (surface opposite with 511 side of top plate is equipped with) of DMD substrate 552.DMD551 has
Image generates face, arranges the micro mirror of multiple movable manners on the image generation face with lattice shape.Each micro mirror of DMD551
Mirror surface is set as to believe around torsional axis rotation inclination, the image that the image control portion 11 based on systems control division 10 is sent
Number, it is driven by ON/OFF.The tilt angle of micro mirror is controlled, such as at " ON ", the light that light source 30 emits is reflected into
Projecting optical unit 60, and at " OFF ", the light that light source 30 emits is reflected into OFF tabula rasa (not shown).
In this way, the control for the picture signal that the tilt angle of each micro mirror of DMD551 is sent by image control portion 11,
To being emitted by light source 30 and being modulated by the light of illumination optics unit 40, projected image is generated.
DMD substrate 552 is supported by radiator 554, and upper surface is equipped with DMD551.DMD substrate 552 can be somebody's turn to do with bearing
The radiator 554 of DMD substrate 552 moves together.
Movable plate 553 is set as to be parallel in the state of being supported, between top plate 511 and substrate 512
It is moved on the direction on surface.The lower surface of movable plate 553 is connect with radiator 554.
After the position of movable plate 553 changes, the radiator 554 that is connected with the movable plate 553, by radiator
The DMD substrate 552 of 554 bearings and the position of the DMD551 set on DMD substrate 552 become together also with the movable plate 553
It is dynamic.
Radiator 554 has the heat unit of contact DMD551, for cooling down DMD551.It is controlled by radiator 554
The temperature of DMD551 rises, and the temperature that can reduce DMD551 rises the generation of caused the problems such as acting bad or failure.
Radiator 554 is set as connection movable plate 553, can move together with DMD substrate 552.Radiator 554 pass through by
It is set as to move together with DMD substrate 552, heat unit contacts DMD551 always, can be cooled effectively DMD551.
<fixed cell>
Fig. 8 is the stereogram exploded view for the fixed cell 51 that first embodiment is related to.
As shown in figure 8, fixed cell 51 has top plate 511, substrate 512 and subplate 513.
Top plate 511 and substrate 512 are the flat board members formed with such as magnetic materials such as iron, stainless steel.Top plate 511 with
Substrate 512 be set as it is parallel to each other, therebetween by means of multiple pillars 515 at a distance of specified interval.Subplate 513 is L shape flat board member,
The upper surface of top plate 511 is fixed on screw (not shown) in Fig. 8.On top plate 511 and substrate 512 with mobile unit 55
DMD551 is respectively equipped with medium pore 514 and 519 on corresponding position.
As shown in figure 8, the upper end of pillar 515 is pressed into the pillar hole 516 of top plate 511, the lower end for forming positive screw channel is inserted
Enter the pillar hole 517 of substrate 512.Pillar 515 forms certain intervals, 511 He of top support plate between top plate 511 and substrate 512
Substrate 512 keeps parallel to each other.
Multiple 522 Hes of support holes for being used to that bearing balls 521 is kept to rotate are respectively formed on top plate 511 and substrate 512
526。
It is inserted into support holes 522 on top plate 511 in inner peripheral surface and sets internal thread cylindrical retainment member 523.Branch
Holding sphere 521 can rotate under the holding of holding member 523, position adjustment screw 524 be inserted from above into holding member 523 it
In.The maintaining part 528 of cover 527 is inserted into the support holes 526 on substrate 512 from lower end.528 shape of maintaining part of cover 527
As cylindrical shape, bearing balls 521 can rotate under the holding of maintaining part 528.
The energy under the holding of the support holes 526 in the support holes 522 and substrate 512 on top plate 511 respectively of bearing balls 521
Enough rotations, these bearing balls 521 contact movable plate 553 respectively, and under the bearing of bearing balls 521, movable plate 553 can
It is mobile.
Fig. 9 is the supporting structure schematic diagram that the fixed cell 51 that first embodiment is related to supports movable plate 553.
As shown in figure 9, bearing balls 521 are under the holding of the holding member 523 of insertion support holes 522 on top plate 511
It can rotate.On substrate 512, bearing balls 521 are under the holding of the maintaining part 528 of the cover 527 of insertion support holes 526
It can rotate.
By each bearing balls 521 kept it is at least a part of from support holes 522 and 526 it is prominent, and be set to top plate
Movable plate 553 between 511 and substrate 512 contacts.Movable plate 553 is multiple by being set as to rotate in its both side surface
Under the bearing of bearing balls 521, it can be moved on being parallel to top plate 511 and substrate 512 and the direction for being parallel to surface.
Set on 511 1 side of top plate bearing balls 521 from 523 lower end of holding member overhang outstanding as position adjusts
The position of screw 524 and change.For example, position adjusts the position of screw 524 when changing on the direction Z1, bearing balls
521 overhang is reduced, and the spacing between top plate 511 and movable plate 553 reduces.And the position of position adjustment screw 524 is in Z1
When changing on direction, the overhang of bearing balls 521 increases, and the spacing between top plate 511 and movable plate 553 increases.
In this way, change the overhang of bearing balls 521 using position adjustment screw 524, it being capable of appropriate adjustment top plate 511
With the spacing between movable plate 553.
Figure 10 is the schematic diagram of the bottom surface for the top plate 511 that first embodiment is related to.As shown in Figure 10, under top plate 511
Surface (surface of 512 side of substrate) is equipped with driving magnet 531a, 531b, 531c, 531d.In the following description, will
Driving is collectively referred to as driving magnet 531 with magnet 531a, 531b, 531c, 531d.
Driving magnet 531 is located at four positions of the medium pore 514 around top plate 511.Driving with magnet 531 with
Longitudinal direction two blocks of stereoscopic rectangular magnet parallel to each other are constituted, and the magnetic field of each self-forming can feed through in top plate 511
The movable plate 553 being supported between substrate 512.
Driving magnet 531 constitutes with the driving coil for being set as being oppositely arranged with 553 upper surface of movable plate drive respectively
Portion, for driving movable plate 553 mobile.
As shown in figure 8, the upper surface (surface with 511 opposite side of top plate) of subplate 513 is equipped with multiple position detections
With magnet 541.Position detecting magnet 541 be set to DMD substrate 552 lower surface (surface of 511 side of top plate) on suddenly
Your sensor constitutes the position detection part of the position of detection DMD551 together.
Position detecting magnet 541 is set on subplate 513, enable to position detecting magnet 541 and is set to top plate
Driving magnet 531 on 511 respectively implements independent position adjustment.Position detecting magnet 541 can also be set to top plate 511
Upper surface, rather than be located on subplate 513.
About the quantity for the pillar 515, bearing balls 521 being set in fixed cell 51 and position etc., not by this embodiment party
Formula illustrates the limitation constituted.
< mobile unit >
Figure 11 is the stereogram exploded view for the mobile unit 55 that first embodiment is related to.
As shown in figure 11, mobile unit 55 has DMD551, DMD substrate 552, movable plate 553, radiator 554, in fixation
It can be moved under the bearing of unit 51.
As described above, movable plate 553 is arranged between the top plate 511 of fixed cell 51 and substrate 512, it can be multiple
It is moved on the direction for be parallel to surface under the bearing of bearing balls 521.
Figure 12 is the schematic diagram of the upper surface for the movable plate 553 that first embodiment is related to.
As shown in figure 12, movable plate 553 is formed with plate-shaped part, in position corresponding with the DMD551 on DMD substrate 552
It sets with medium pore 570, driving coil 581a, 581b, 581c, 581d is equipped with around medium pore 570.In the following description
Driving coil 581a, 581b, 581c, 581d are collectively referred to as driving coil 581.
Each driving coil 581 winds formation centered on the axis for being parallel to the direction Z1Z2, is located at the upper of movable plate 553
In the recess portion formed on surface (surface of 511 side of top plate), and covered with lid.Driving coil 581 and the drive for being set to top plate 511
Employ the driving portion that magnet 531 constitutes driving movable plate 553 together.
In the state that mobile unit 55 is supported by fixed cell 51, each driving on top plate 511 is distinguished with magnet 531
It is oppositely arranged with the driving coil 581 of movable plate 553.After being powered in driving coil 581, the magnetic field of the driving formation of magnet 531
Lorentz force is generated, which becomes so that mobile driving force occurs for movable plate 553.
Movable plate 553 is driven the Lorentz force as driving force used and generated between magnet 531 and driving coil 581
Effect, position straight line occurs on X/Y plane and changes or rotation relative to fixed cell 51.
The control of size of current and direction in each driving coil 581 by the drive control part 12 of systems control division 10
System.Drive control part 12 according in each driving coil 581 size of current and direction, come control movable plate 553 movement (turn
It is dynamic) direction, amount of movement and rotational angle etc..
In present embodiment, driving coil 581a and driving are with magnet 531a and driving coil 581d and driving magnet
531d is oppositely arranged on the direction X1X2 respectively as the first driving portion.After being powered in driving coil 581a and 581d, such as Figure 12
It is shown, generate the Lorentz force in the direction X1 or the direction X2.Movable plate 553 with magnet 531a and drives in driving coil 581a and driving
It is mobile to the direction X1 or the direction X2 under the action of moving winding 581d and the driving Lorentz force generated between magnet 531d.
Simultaneously in the present embodiment, driving coil 581b and driving magnet 531b and driving coil 581c and driving
It uses magnet 531c as the second driving portion, is arranged side by side on the direction X1X2, the driving length direction of magnet 531b and 531c
Perpendicular to the driving length direction of magnet 531a and 531d.In this composition, after being powered in driving coil 581b and 581c, such as scheme
Shown in 12, the Lorentz force in the direction Y1 or the direction Y2 is generated.
Movable plate 553 is in driving coil 581b and driving between magnet 531b and driving coil 581c and driving magnetic
It is mobile to the direction Y1 or the direction Y2 under the action of the Lorentz force generated between iron 531c.Movable plate 553 is also in driving coil
581b and driving are between magnet 531b and driving coil 581c and the driving opposite direction generated between magnet 531c
Under the action of Lorentz force, rotate on X/Y plane.
For example, after being powered, if driving coil 581b and the driving Lorentz force for generating the direction Y1 in magnet 531b, drive
Moving winding 581c and the driving Lorentz force that the direction Y2 is generated in magnet 531c, then movable plate 553 is according to suitable on vertical view face
Clockwise rotation, occurs shift in position.And if driving coil 581b and the driving Lip river for generating the direction Y2 in magnet 531b
Lun Zili, driving coil 581c and the driving Lorentz force that the direction Y1 is generated in magnet 531c, then movable plate 553 is according to vertical view
It is rotated in an anti-clockwise direction on face, shift in position occurs.
As shown in figure 12, the position that the pillar 515 of fixed cell 51 is corresponded on movable plate 553 is limited equipped with movable range
Hole 571.Movable range limiting holes 571 the exception such as vibration occurs by causing in the pillar 515 for being wherein inserted into fixed cell 51
When movable plate 553 generates larger shift in position, which touches pillar 515, to limit movable plate
553 movable range.
Quantity, position and shape of movable range limiting holes 571 etc. are not illustrated to constitute by present embodiment and be limited.Example
Such as, movable range limiting holes 571 are also possible to multiple either one.The shape of movable range limiting holes 571 can also adopt
With the shape different from present embodiment, such as rectangle or circle etc..
Figure 13 is the schematic diagram for the DMD substrate bottom surface that first embodiment is related to.
As shown in figure 13, on the lower surface of DMD substrate 552 (surface of 551 side of top plate), be set to subplate 513 on
The opposite position of position detecting magnet 541 on, be equipped with Hall sensor 542.Hall sensor 542 is an example magnetic sensing
Device is become for sending the magnetic density detected based on position detecting magnet 541 to the drive control part 12 of systems control division 10
The signal of change.The signal that drive control part 12 is sent according to Hall sensor 542, detects the position of DMD551.
Top plate 511 and substrate 512 composition formed in present embodiment with magnetic material plays yoke effect, comprising driving
Employ the driving portion and magnetic circuit of magnet 531 and driving coil 581.
By above-mentioned composition, the flux generated in driving portion concentrates on top plate 511 and substrate 512, is able to suppress flux and lets out
Other than draining between top plate 511 and substrate 512.
In this way, just can reduce Hall sensor 542 on the DMD substrate 552 of 511 upper surface of top plate, one side by
Include driving magnet 531 and the driving influence in the magnetic field formed in the driving portion of coil 581.For this purpose, being based in output
Hall sensor 542 can will not be driven when the signal of the magnetic density variation of position detecting magnet 541 generates in portion
The influence in magnetic field, therefore, drive control part 12 can accurately grasp the position of DMD551.
As described above, the output for the Hall sensor 542 that drive control part 12 influences to be reduced according to the portion of being driven, energy
Enough positions with good accuracy detection DMD551.For this purpose, drive control part 12 can according to the position of the DMD551 detected,
Control the size of current in each driving coil 581 and direction, the position of high-precision control DMD551.
About the quantity and position etc. of the driving as driving portion magnet 531 and driving coil 581, as long as can incite somebody to action
Movable plate 553 is moved to any position, can also be using the composition different from present embodiment.
For example, driving magnet 531 can be arranged on substrate 512, and driving coil 581 is arranged in movable plate
On the surface of 553 512 side of substrate.Driving magnet 531 can also be arranged on movable plate 553, and by driving coil
581 are arranged on top plate 511 or substrate 512.In turn, position detecting magnet 541 is arranged on DMD substrate 552, and will suddenly
The upper surface of subplate 513 is arranged in your sensor 542.Furthermore by the driving comprising driving with magnet 531 and driving coil 581
Portion is arranged between substrate 512 and radiator 554, and by the position comprising position detecting magnet 541 and Hall sensor 542
Test section is arranged between top plate 511 and substrate 512.
But 55 weight increase of mobile unit will cause position control and be difficult to carry out, it is therefore preferable that by driving magnet
531 and position detecting magnet 541 be arranged in fixed cell 51 (top plate 511, substrate 512 and subplate 513).
As long as leaking into position detection part, 512 each section of top plate 511 and substrate from driving portion in addition, flux can be reduced
It can also be formed with magnetic material.For example, top plate 511 and substrate 512 can include the plate shaped of magnetic material formation with multi-disc
The material lamination of shape or chip shape is formed.Furthermore it is possible at least part of subplate 513 be formed with magnetic material, to rise
To yoke effect.Furthermore at least part can also be formed with magnetic material in top plate 511, to play yoke effect, as long as
It can prevent flux from leaking into position detection part from driving portion, substrate 512 can also be formed with non-magnetic material.
Figure 14 is the side view for the mobile unit 55 that first embodiment is related to.
As shown in figure 14, there is radiator 554 upper surface contacted with DMD to exothermic cylindricality heat unit 563, bearing
The pillar 561 of DMD substrate 552, the connecting column 562 for connecting movable plate 553.
As shown in figure 13, the part that DMD551 is installed on DMD substrate 552 is equipped with louver 556.The heat release of radiator 554
Portion 563 through the medium pore 514 and 519 (Fig. 8) of top plate 511 and substrate 512, movable plate 553 medium pore 570 (Figure 12), with
And the louver 556 (Figure 13) of DMD substrate 552, to contact the bottom surface DMD.
In order to improve the cooling effect of DMD551, can also be arranged between the heat unit 563 and DMD551 of radiator 554
It is capable of the heat transfer sheet of flexible deformation.The heat conductivity between the heat unit 563 of radiator 554 and DMD551 is improved with heat transfer sheet
Can, improve the cooling effect of DMD551.
Radiator four, 554 upper surface periphery position is equipped with pillar 561, these pillars 561 are respectively from the upper of radiator 554
Surface is prominent to the direction Z1.As illustrated in figures 11 and 13, the position corresponding with the pillar 561 of radiator 554 on DMD substrate 552
It sets and forms screw hole 555.As shown in figure 14, screw 564 is inserted into screw hole 555, and DMD substrate 552 is fixed on the upper of pillar 561
End.
Six positions are equipped with connecting column 562 around the heat unit 563 of 554 upper surface of radiator, these connecting columns 562 divide
It is not prominent from the upper surface of radiator 554 to the direction Z1.Connecting column 562 is fixed on 553 upper end of movable plate for example, by screw etc..
Radiator 554 is connect by connecting column 562 with movable plate 553.
Height on the direction Z1Z2 of pillar 561 and connecting column 562 is different, be respectively formed between DMD substrate 552 and
Regulation spacing between movable plate 553.
Here, in the state that DMD substrate 552 is by 561 fixed bearing of pillar, will radiate to improve cooling effect
The heat unit 563 of device 554 is set as pressing on the bottom surface of DMD551.In this case, DMD551 is put by radiator 554
Hot portion 563 presses, and is likely to result in the bending of DMD substrate 552.If the bending that DMD substrate 552 occurs influences movable plate 553,
It is then difficult to the position of high-precision control mobile unit 55, so that it is unstable to occur DMD551 shift action, causes perspective view image quality
Amount decline.
In this regard, mobile unit 55 of the present embodiment is as described above, pillar of the DMD substrate 552 by radiator 554
561 bearing, movable plate 553 are connect with the connecting column 562 of radiator 554.In this way, DMD substrate 552 and movable plate 553 are distinguished
The different piece of radiator 554 is connected, or by the bearing of 554 different piece of radiator, thus for example in DMD substrate 552
When bending, it can also reduce the influence that the bending of DMD substrate 552 generates movable plate 553.
For this purpose, image generation unit 50 of the present embodiment can be improved the stabilization of the shift action of projected image
Property, the position of high-precision control DMD551, mobile projector image improves resolution ratio.
<image projection>
As described above, the DMD551 for generating projected image is set to movable in projector 1 of the present embodiment
Unit 55, control of the position by the drive control part of systems control division 10.
For example, drive control part 12 corresponds to the specified period of frame speed in image projection, control mobile unit 55
Position high-speed mobile between multiple positions of multiple arrangement of micro mirrors spacing less than DMD551.At this point, image control portion 11 is right
It answers each position to send picture signal to DMD551, mobile projected image occurs to generate.
For example, drive control part 12 is moved back and forth between position P1 and P2 with specified period, the distance between P1 and P2
It is less than the arrangement of micro mirrors spacing of DMD551 on the direction X1X2 and the direction Y1Y2.At this point, image control portion 11 controls DMD551 life
Mobile projected image occurs at corresponding with each position, the resolution ratio of projected image can be increased to DMD551 is had
Resolution ratio approximately twice as.Moreover, increasing the shift position of DMD551, the resolution ratio of projected image can be increased to
Twice or more of DMD551.
In this way, drive control part 12 controls DMD551 and mobile unit 55 moves together movement, image control portion 11 is controlled
Projected image corresponding with the position of DMD551 is generated, so as to project the high-resolution for reaching DMD551 resolution ratio or more
Image.
Moreover, projector 1 of the present embodiment is controlled by drive control part 12, DMD551 and mobile unit 55 1
Rotation is played, thus, it is possible to rotate projected image in the case where not needing reduced projection image.Such as it is raw in images such as DMD551
It is that, if not reduced projection image, just projected image aspect ratio can not kept constant in fixed projector at device
In the case of rotate projected image.In this regard, projector 1 of the present embodiment enables to DMD551 to rotate, accordingly, it is not necessary to
Reduced projection image just can rotate projected image, carry out the adjustment such as tilting to projected image.
As described above, the DMD551 in projector 1 of the present embodiment can be moved, done by DMD551 mobile dynamic
Make, can be improved the resolution ratio of projected image.In addition, the radiator 554 for being used to cool down DMD551 is equipped on together with DMD551
Mobile mobile unit 55, it is thus possible to effectively cooling DMD551.
In turn, mobile unit 55 of the present embodiment is respectively by the different piece of radiator 554 (561 He of pillar
Connecting column 562) connection or bearing.When this composition makes that for example DMD substrate 552 bends, what which generated
Bending is also unlikely to influence movable plate 553, is conducive to the shift action that DMD551 keeps stable.
Furthermore in the present embodiment, top plate 511 and substrate 512 play the role of yoke plate, prevent comprising driving magnetic
The flux generated in iron 531 and the driving portion of driving coil 581 leaks into outside.For this purpose, being located at top plate on DMD substrate 552
The Hall sensor 542 of 511 upper surfaces side will not be driven the influence in the magnetic field generated in portion, can export and examine with position
It surveys and changes corresponding signal with the magnetic density of magnet 541.For this purpose, drive control part 12 can be based on the defeated of Hall sensor 542
Out, the position of the DMD551 of high-precision detection high-speed mobile, with the position of good precision controlling DMD551.
The composition of mobile unit 55 is not exposed to the limitation of the composition of above embodiment illustration.Such as set on radiator
What the compositions such as 554 shape, quantity and the setting of pillar 561 and connecting column 562 were not limited to illustrate in above embodiment
It constitutes.
<second embodiment>
Second embodiment is described below according to attached drawing.In the following description, for the embodiment party that has been described
Formula constitutes identical part and is not repeated to describe.
Figure 15 is the side view of the mobile unit 56 of second embodiment.
Mobile unit 56 shown in figure 15 has the link bearing part for supporting DMD substrate 552 and movable plate 553 respectively
595, the radiator 557 of the exothermic parts as cooling DMD551 is fixed on connection bearing part 595.
Connecting bearing part 595 has the pillar 596 of bearing DMD substrate 552 and the connecting column 597 of connection movable plate 553.
The compositions such as the shape of pillar 596 and connecting column 597, quantity and position are with the pillar 561 in first embodiment and even
The composition for connecing column 562 is identical.
Radiator 557 has the cylindricality heat unit 568 for cooling down DMD551, is fixed on connection supporting part with screw 565
One side of lower surface (side opposite with movable plate 553) of part 595.Heat unit 568 run through be set to connection bearing part 595 in
Medium pore on the corresponding part DMD551, the bottom surface of the upper end face contact DMD551.
In the mobile unit 56 of second embodiment, cooling of the DMD551 by the heat unit 568 of radiator 557 subtracts
The generation for the problems such as acting bad or failure caused by DMD551 temperature rises is lacked.Moreover, DMD substrate 552 and movable plate 553
Respectively by different piece (the pillar 596 and connecting column 597) connection or bearing of connection bearing part 595, it is thus possible to inhibit
The image that bending of DMD substrate 552 etc. generates movable plate 553 improves the stability of DMD551 shift action.
The foregoing describe image projection system of the present embodiment, video generation device and image projection device,
But the present invention is not limited to the embodiments described above, and allows within the scope of the present invention to carry out above embodiment various
Variation and improvement.
Claims (10)
1. a kind of video generation device, which is characterized in that
It can move with the fixed cell comprising the first fixed plate and the second fixed plate and under fixed cell bearing
Mobile unit,
The mobile unit includes
First movable plate can move between first fixed plate and second fixed plate in the case where being supported；
Second movable plate is set as clipping first fixed plate between first movable plate；
Image production part is located on second movable plate, for generating image；And
Bearing part is connected, is set as clipping second fixed plate between first movable plate, it is movable with described first
Plate is connected, and supports second movable plate.
2. video generation device according to claim 1, which is characterized in that the connection bearing part has heat unit,
The heat unit contacts described image generating unit, to dissipate the heat of the image production part.
3. video generation device according to claim 1, which is characterized in that the mobile unit has exothermic parts, should
Bearing of the exothermic parts by the connection bearing part, is in contact with described image generating unit, generates to dissipate the image
The heat in portion.
4. video generation device as claimed in any of claims 1 to 3 comprising:
Driving portion, wherein comprising being oppositely arranged between first fixed plate and first movable plate or described first can
Driving magnet and driving coil between movable plate and second fixed plate, so that the mobile unit is relative to the fixation
Unit relative movement；And
Position detection part, wherein including the position detection being oppositely arranged between first fixed plate and second movable plate
With magnet and Magnetic Sensor, for detecting position of the mobile unit relative to the fixed cell,
At least part of first fixed plate is formed with magnetic material.
5. video generation device according to claim 4, which is characterized in that
The driving is located in first fixed plate or second fixed plate with magnet,
The driving coil is located on first movable plate.
6. video generation device according to claim 4, which is characterized in that
The Magnetic Sensor is located on second movable plate,
The position detecting magnet is located in first fixed plate.
7. video generation device according to claim 4, which is characterized in that
The fixed cell has a third fixed plate, which it is described second movable to be located at first fixed plate
One side of plate,
The Magnetic Sensor is located on second movable plate,
The position detecting magnet is located in the third fixed plate.
8. video generation device according to claim 4, which is characterized in that at least part of second fixed plate is used
Magnetic material is formed.
9. video generation device according to claim 4 comprising:
Drive control part, for controlling the driving portion；And
Image control portion is sent to for generating picture signal corresponding with the position of the mobile unit, and by the picture signal
Described image generating unit,
Described image generating unit is the Digital Micromirror Device that multiple arrangement of micro mirrors are formed, and the micro mirror is based on described image signal tune
The light of light source transmitting processed,
The drive control part controls the driving portion, so that the driving portion drives the mobile unit movement small with specified period
In the distance of the arrangement spacing of the multiple micro mirror.
10. a kind of image projection device comprising:
Video generation device described in any one of claim 1 to 9；And
For projecting the Projection Division of the image generated by described image generating unit.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016011764A JP2017134122A (en) | 2016-01-25 | 2016-01-25 | Image generation device and image projection device |
| JP2016-011764 | 2016-01-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106997140A CN106997140A (en) | 2017-08-01 |
| CN106997140B true CN106997140B (en) | 2019-05-03 |
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ID=59430923
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710022350.1A Expired - Fee Related CN106997140B (en) | 2016-01-25 | 2017-01-12 | Video generation device and image projection device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2017134122A (en) |
| CN (1) | CN106997140B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7087354B2 (en) * | 2017-11-24 | 2022-06-21 | 株式会社リコー | Optical unit, image forming unit and image projection device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003259255A (en) * | 2002-02-26 | 2003-09-12 | Ricoh Co Ltd | Projection picture display device |
| JP2004180011A (en) * | 2002-11-27 | 2004-06-24 | Ricoh Co Ltd | Image display device |
| CN1627127A (en) * | 2001-08-08 | 2005-06-15 | 精工爱普生株式会社 | Optical device, its manufacturing method and projector |
| JP2012088723A (en) * | 2011-12-01 | 2012-05-10 | Canon Inc | Projection type image display device |
| CN102854716A (en) * | 2011-06-30 | 2013-01-02 | 精工爱普生株式会社 | Projector |
| CN103091946A (en) * | 2011-11-04 | 2013-05-08 | 株式会社理光 | Image projection apparatus |
| CN104950434A (en) * | 2014-03-27 | 2015-09-30 | 精工爱普生株式会社 | Optical device and image display apparatus |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4158719B2 (en) * | 2004-02-18 | 2008-10-01 | セイコーエプソン株式会社 | Optical device and projector |
| JP6003365B2 (en) * | 2012-08-06 | 2016-10-05 | セイコーエプソン株式会社 | Optical device, projector, and method of manufacturing optical device |
-
2016
- 2016-01-25 JP JP2016011764A patent/JP2017134122A/en active Pending
-
2017
- 2017-01-12 CN CN201710022350.1A patent/CN106997140B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1627127A (en) * | 2001-08-08 | 2005-06-15 | 精工爱普生株式会社 | Optical device, its manufacturing method and projector |
| JP2003259255A (en) * | 2002-02-26 | 2003-09-12 | Ricoh Co Ltd | Projection picture display device |
| JP2004180011A (en) * | 2002-11-27 | 2004-06-24 | Ricoh Co Ltd | Image display device |
| CN102854716A (en) * | 2011-06-30 | 2013-01-02 | 精工爱普生株式会社 | Projector |
| CN103091946A (en) * | 2011-11-04 | 2013-05-08 | 株式会社理光 | Image projection apparatus |
| JP2012088723A (en) * | 2011-12-01 | 2012-05-10 | Canon Inc | Projection type image display device |
| CN104950434A (en) * | 2014-03-27 | 2015-09-30 | 精工爱普生株式会社 | Optical device and image display apparatus |
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| Publication number | Publication date |
|---|---|
| JP2017134122A (en) | 2017-08-03 |
| CN106997140A (en) | 2017-08-01 |
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