CN106997140A - Video generation device and image projection device - Google Patents
Video generation device and image projection device Download PDFInfo
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- CN106997140A CN106997140A CN201710022350.1A CN201710022350A CN106997140A CN 106997140 A CN106997140 A CN 106997140A CN 201710022350 A CN201710022350 A CN 201710022350A CN 106997140 A CN106997140 A CN 106997140A
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- Prior art keywords
- movable platen
- fixed plate
- image
- generation device
- video generation
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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
Abstract
The present invention relates to video generation device and image projection device, its object is to improve projected image shift action stability.The video generation device of the present invention has the fixed cell comprising the first fixed plate and the second fixed plate and the mobile unit that can be moved under fixed cell supporting, and the mobile unit has：First movable platen, is supported, and can be moved between first fixed plate and second fixed plate；Second movable platen, is set as between first movable platen clipping first fixed plate；Image production part, is located on second movable platen, for generating image；And, supporting member is connected, is set as between first movable platen clipping second fixed plate, is connected with first movable platen, second movable platen is supported.
Description
Technical field
The present invention relates to video generation device and image projection device.
Background technology
High-speed mobile can be passed through by carrying out the image projection device of image projection on screen etc. according to input image data
Projected image, allows projected image slightly to offset, to improve the resolution ratio of projected image in virtual manner.
For example, patent document 1 (TOHKEMY 2004-180011 publications) discloses a kind of image display device, it is utilized
Pixel-shift mode so that optical axis is moved relative to the light of multiple pixel emissions of display element, carrys out offset pixels, so that
The image of the resolution ratio higher than the resolution ratio that display element has originally can be shown.
As described above, causing projected image to move, it is necessary to high-precision control during resolution ratio to improve projected image
The position of projected image.And if the shift action of projected image is unstable, do not simply fail to improve the resolution ratio of projected image, instead
And it is likely to decrease picture quality.
The content of the invention
In view of the above problems, the present invention provides a kind of video generation device, dynamic its object is to improve projected image movement
The stability of work.
The video generation device of the present 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 supporting is stated, the mobile unit has：First movable platen, is supported, can
Moved between first fixed plate and second fixed plate；Second movable platen, be set as with first movable platen it
Between clip first fixed plate；Image production part, is located on second movable platen, for generating image；And, connection
Supporting member, is set as between first movable platen clipping second fixed plate, is connected with first movable platen,
Support second movable platen.Effect of the invention is that, using the teaching of the invention it is possible to provide improve the image of projected image offset motion stability
Generating means.
Brief description of the drawings
Fig. 1 is the schematic diagram for the projecting apparatus that first embodiment is related to.
Fig. 2 is the construction module figure for the projecting apparatus that first embodiment is related to.
Fig. 3 is the stereogram 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 stereogram 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 three-dimensional exploded view for the fixed cell that first embodiment is related to.
Fig. 9 is the supporting structure schematic diagram that the fixed cell that first embodiment is related to supports movable platen.
Figure 10 is the schematic diagram of the bottom surface for the top plate that first embodiment is related to.
Figure 11 is the three-dimensional exploded view for the mobile unit that first embodiment is related to.
Figure 12 is the schematic diagram for the movable platen upper surface that first embodiment is related to.
Figure 13 is the schematic diagram of the bottom surface for the DMD substrates 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.
Embodiment
Embodiments of the present invention are described below with reference to accompanying drawing.There is mutually isostructural part using identical in each width accompanying drawing
Mark, and omit repeated description.
<First embodiment>
The composition of image projection device
Fig. 1 is the schematic diagram for the projecting apparatus 1 that first embodiment is related to.
Projecting apparatus 1 is an image projection device, and with window 3 and Peripheral Interface (I/F) 9 is projected, inside is provided with and uses next life
Into the light engine of projected image.Projecting apparatus 1 is receiving the personal computer or digital camera that are for example connected by Peripheral Interface 9
After the view data of transmission, projected image is generated according to the view data received by light engine, then by image P such as Fig. 1 institutes
Show, projected to from window 3 is projected in screen S.
In figures in the following, using X1X2 directions as the length direction of projecting apparatus 1, Y1Y2 directions are the width of projecting apparatus 1
Direction, Z1Z2 directions are the short transverse of projecting apparatus 1.And in the following description, using the side of injection window 3 one of projecting apparatus 1 as
Upside a, side opposite with projecting window is downside.
Fig. 2 is the construction module figure for the projecting apparatus 1 that first embodiment is related to.
As shown in Fig. 2 projecting apparatus 1 have power supply 4, main switch SW5, operating portion 7, Peripheral Interface 9, systems control division 10,
Ventilation fan 20, light engine 15.
Power supply 4 connects public power, by voltage and frequency conversion to being available for the internal circuit of projecting apparatus 1 to use, to being
The power supplies such as system control unit 10, ventilation fan 20 and light engine 15.
Main switch SW5 carries out the ON/OFF operations of projecting apparatus 1 for user.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 projecting apparatus 1, and operates main switch SW5
To OFF, then power supply 4 stops powering to each portion of projecting apparatus 1.
Operating portion 7 is the key button for receiving the various operations of user, located at the upper surface of such as projecting apparatus 1.Operating portion 7 connects
By such as user on the size of projected image, color, focusing operate.User's operation that operating portion 7 is accepted is sent to system
Control unit 10.
Peripheral Interface 9 has connection terminal of the connection such as personal computer, digital camera, will be sent from connection equipment
View 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 comprising such as CPU,
ROM, RAM etc..Cooperated by CPU with RAM and perform the program being stored in ROM, realize the various functions of systems control division 10.
Given birth to according to the view data inputted from Peripheral Interface 9, control located at the image of light engine 15 in image control portion 11
Into the DMD DMD (Digital Micromirror Device, hereinafter referred to as DMD) 551 in unit 50, generation
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
The drive division being moved, so as to control the position of the DMD551 in mobile unit 55.Ventilation fan 20 is in systems control division
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,
Projected image onto under the control of systems control division 10 in screen S.
Light source 30 is using such as mercury high-pressure lamp, xenon lamp, LED, under the control of systems control division 10, to illumination light
Learn the irradiation light of unit 40.
Illumination optics unit 40 has the element such as colored runner, session element, relay lens, for light source 30 is penetrated
The light gone out is directed on the DMD551 on image generation unit 50.
Image generation unit 50 is a video generation device, with by fixed supported fixed cell 51 and can
The mobile unit 55 moved under the supporting 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 image production part,
By the control in the image control portion 11 of systems control division 10, the light guided by illumination optics unit 40 is modulated, it is raw
Into projected image.Projecting optical unit 60 is a Projection Division, and such as with multiple projecting lens, speculum, image is given birth to
Amplify and project in screen S into the DMD551 of unit 50 images generated.
<The composition of light engine>
The part for describing the light engine 15 of projecting apparatus 1 below is constituted.
Fig. 3 is the stereogram 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 projecting apparatus 1.
Light source 30 is located at the side of illumination optics unit 40, to X2 directions irradiation light.Illumination optics unit 40 is by light source 30
The light of transmitting is directed to the image generation unit 50 located at 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 given birth to
Into projector, image projection to beyond projecting apparatus 1.
The upward projected image of light that light engine 15 of the present embodiment is launched with light source 30, in addition, 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 be different piece for example in a circumferential direction provided with R (red), G (green), B (blueness) respectively
The disk of color colour filter.The colored high-speed rotation of runner 401, RBG a variety of colors is divided into during the light that light source 30 is launched.
The session element 402 of composition corner barrel shape is bonded together such as by glass plate.In the interior table of session element 402
On face, through colored runner 401 RGB white lights by multipath reflection, after intensity profile becomes uniform, be directed into relaying saturating
Mirror 403 and 404.
The axial chromatic aberration for the light that relay lens 403 and 404 pairs are projected from session element 402 is compensated and converging light.
Cylindricality mirror 405 and concave mirror 406 reflect the light projected from relay lens 403 and 404 so that light shoots to image generation
DMD551 on unit 406.DMD551 is modulated to 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, speculum 602, the curved surface located at enclosure interior
Mirror 603.
Projecting lens 601 has multi-disc lens so that the projected image of the DMD551 generations of image generation unit 50 is anti-
Penetrate on mirror 602 and be imaged.The projected image of speculum 602 and the catoptric imaging of curved mirror 603, amplifies the projected image, projects to
In the screen S outside projecting apparatus 1.
<Image generation unit>
Fig. 6 is the stereogram 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 be moved under the supporting 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 the 3rd fixed plate.Top plate 511 and substrate 512 be arranged in parallel, are separated by specified gap.
The lamination of subplate 513 is in the upper surface of top plate 511.Fixed cell 51 has above-mentioned composition, and is fixed on illumination optics unit 40
Lower section.
Mobile unit 55 has DMD551, the DMD substrates 552 as the second movable platen, is used as the movable of the first movable platen
Plate 553 (not shown in Fig. 6), the radiator 554 as connection supporting member, can be moved under the supporting of fixed cell 51.
DMD551 is located at the upper surface of DMD substrates 552 (with provided with the opposite surface in the side of top plate 511).DMD551 has
Image generates the micro mirror for arranging multiple movable manners on face, the image generation face with lattice shape.DMD551 each micro mirror
Minute surface is set as to rotate around torsional axis and tilted, the image letter that the image control portion 11 based on systems control division 10 is sent
Number, driven by ON/OFF.The angle of inclination of micro mirror is controlled, such as at " ON ", the light that light source 30 is launched is reflexed to
Projecting optical unit 60, and at " OFF ", the light that light source 30 is launched is reflexed into OFF tabula rasas (not shown).
So, the angle of inclination of DMD551 each micro mirror is sent by image control portion 11 picture signal is controlled,
To being launched by light source 30 and being modulated by the light of illumination optics unit 40, projected image is generated.
DMD substrates 552 are supported by radiator 554, and its upper surface is provided with DMD551.DMD substrates 552 can be somebody's turn to do with supporting
The radiator 554 of DMD substrates 552 is moved together.
Movable platen 553 be set as can in the state of being supported, between top plate 511 and substrate 512, parallel to
The side on surface is moved up.The lower surface of movable platen 553 is connected with radiator 554.
After the position of movable platen 553 changes, the radiator 554 that is connected with the movable platen 553, by radiator
The DMD substrates 552 of 554 supportings and the DMD551 located at DMD substrates 552 position become together also with the movable platen 553
It is dynamic.
Radiator 554 has contact DMD551 heat unit, for cooling down DMD551.Controlled by radiator 554
DMD551 temperature rises, the generation for the problems such as temperature that can reduce DMD551 rises caused action bad or failure.
Radiator 554 is set as connecting movable platen 553, can be moved together with DMD substrates 552.Radiator 554 passes through quilt
It is set to move together with DMD substrates 552, its heat unit contacts DMD551 all the time, can effectively cool down DMD551.
<Fixed cell>
Fig. 8 is the three-dimensional 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 with the flat board member of the magnetic material formation 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 predetermined distance.Subplate 513 is L-shaped flat board member,
The upper surface of top plate 511 is fixed on screw (not shown) in Fig. 8.With mobile unit 55 on top plate 511 and substrate 512
Medium pore 514 and 519 is respectively equipped with the corresponding positions of DMD551.
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, the He of top support plate 511 between top plate 511 and substrate 512
Substrate 512 keeps parallel to each other.
Multiple Hes of support holes 522 for being used for keeping bearing balls 521 to rotate are formed on top plate 511 and substrate 512 respectively
526。
Inserted in support holes 522 on top plate 511 in inner peripheral surface and set female cylindrical retainment member 523.Branch
Holding spheroid 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 support holes 526 that the maintaining part 528 of cover 527 is inserted on substrate 512 from lower end.The shape of maintaining part 528 of cover 527
As cylindrical shape, bearing balls 521 can be rotated under the holding of maintaining part 528.
Energy under the holding of support holes 526 in the support holes 522 and substrate 512 of bearing balls 521 respectively on top plate 511
Enough to rotate, these bearing balls 521 contact movable platen 553 respectively, and under the supporting of bearing balls 521, movable platen 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 platen 553.
As shown in figure 9, on top plate 511, bearing balls 521 are under the holding of the holding member 523 of insertion support holes 522
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 part of from support holes 522 and 526 it is prominent, and located at top plate
Movable platen 553 between 511 and substrate 512 is contacted.Movable platen 553 is multiple by be set as rotating in its both side surface
Under the supporting of bearing balls 521, it can be moved up in the side parallel to top plate 511 and substrate 512 and parallel to surface.
The overhang protruded from the lower end of holding member 523 located at the bearing balls 521 of the side of top plate 511 1 is with position adjustment
The position of screw 524 and change.For example, when the position of position adjustment screw 524 changes on Z1 directions, bearing balls
521 overhang is reduced, and the spacing between top plate 511 and movable platen 553 reduces.And the position of position adjustment screw 524 is in Z1
When being changed on direction, the overhang increase of bearing balls 521, the spacing increase between top plate 511 and movable platen 553.
So, change the overhang of bearing balls 521 using position adjustment screw 524, can suitably adjust top plate 511
With the spacing between movable platen 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 the side of substrate 512) is provided 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
Long side direction two blocks of stereoscopic rectangular magnet parallel to each other are constituted, and the magnetic field of each self-forming can be fed through in top plate 511
The movable platen 553 being supported between substrate 512.
Driving magnet 531 drives with being set as constituting with the driving coil that the upper surface of movable platen 553 is oppositely arranged respectively
Portion, for driving movable platen 553 to move.
As shown in figure 8, the upper surface (surface with the opposite side of top plate 511) of subplate 513 is detected provided with multiple positions
With magnet 541.Position detecting magnet 541 is with being located on the lower surface (surface of the side of top plate 511) of DMD substrates 552 suddenly
Your sensor constitutes the position detection part of detection DMD551 position together.
The set location detection magnet 541 on subplate 513, enables to position detecting magnet 541 and located at top plate
Driving magnet 531 on 511 each implements independent position adjustment.Position detecting magnet 541 can also be located at top plate 511
Upper surface, rather than be located on subplate 513.
On the pillar 515 in fixed cell 51, the quantity of bearing balls 521 and position etc., not by this embodiment party
Formula illustrates the limitation constituted.
＜ mobile units ＞
Figure 11 is the three-dimensional 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 platen 553, radiator 554, in fixation
It can be moved under the supporting of unit 51.
As described above, movable platen 553 is arranged between the top plate 511 of fixed cell 51 and substrate 512, can be multiple
Moved up under the supporting of bearing balls 521 in the side parallel to surface.
Figure 12 is the schematic diagram of the upper surface for the movable platen 553 that first embodiment is related to.
As shown in figure 12, movable platen 553 is formed with plate-shaped part, in position corresponding with the DMD551 on DMD substrates 552
Put with medium pore 570, driving coil 581a, 581b, 581c, 581d are provided 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 axle parallel to Z1Z2 directions, is located at the upper of movable platen 553
In the recess formed on surface (surface of the side of top plate 511), and covered with lid.Driving coil 581 and the drive located at top plate 511
Employ the drive division that magnet 531 constitutes driving movable platen 553 together.
In the state of mobile unit 55 is supported by fixed cell 51, each driving magnet 531 on top plate 511 is distinguished
It is oppositely arranged with the driving coil 581 of movable platen 553.After being powered in driving coil 581, the magnetic field of the driving formation of magnet 531
Lorentz force is produced, the active force turns into the driving force for make it that movable platen 553 is moved.
Movable platen 553 is driven with the Lorentz force as driving force produced between magnet 531 and driving coil 581
Effect, its position relative to fixed cell 51, on X/Y plane occur straight line change or rotate.
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.Size of current and direction of the drive control part 12 in each driving coil 581, to control the movement of movable platen 553 (to 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 X1X2 directions respectively as the first drive division.After being powered in driving coil 581a and 581d, such as Figure 12
It is shown, produce the Lorentz force in X1 directions or X2 directions.Movable platen 553 is in driving coil 581a and driving with magnet 531a with driving
Moving winding 581d and driving are moved with the presence of the Lorentz force produced between magnet 531d to X1 directions or X2 directions.
In the present embodiment, driving coil 581b and driving magnet 531b and driving coil 581c and driving simultaneously
With magnet 531c as the second drive division, it is arranged side by side on X1X2 directions, driving magnet 531b and 531c length direction
Perpendicular to length direction of the driving with 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 Y1 directions or Y2 directions is produced.
Movable platen 553 is in driving coil 581b and driving between magnet 531b and driving coil 581c and driving magnetic
In the presence of the Lorentz force produced between iron 531c, moved to Y1 directions or Y2 directions.Movable platen 553 is also in driving coil
581b and driving are between magnet 531b and driving coil 581c and driving are with the opposite direction produced between magnet 531c
In the presence of Lorentz force, rotated on X/Y plane.
For example, after being powered, if driving coil 581b and the driving Lorentz force that Y1 directions are produced in magnet 531b, drive
Moving winding 581c and the driving Lorentz force that Y2 directions are produced in magnet 531c, then movable platen 553 is according to suitable on vertical view face
Clockwise is rotated, and occurs shift in position.And if driving coil 581b and the driving Lip river that Y2 directions are produced in magnet 531b
Lun Zili, driving coil 581c and the driving Lorentz force that Y1 directions are produced in magnet 531c, then movable platen 553 is according to vertical view
Rotated in an anti-clockwise direction on face, occur shift in position.
As shown in figure 12, the position of the pillar 515 of correspondence fixed cell 51 is limited provided with movable range on movable platen 553
Hole 571.Movable range limiting holes 571 by inserting the pillar 515 of fixed cell 51 wherein, and vibration etc. is abnormal to be caused occurring
When movable platen 553 produces larger shift in position, the movable range limiting holes 571 touch pillar 515, so as to limit movable platen
553 movable range.
Quantity, position and shape of movable range limiting holes 571 etc. are not illustrated to constitute and limited by present embodiment.Example
Such as, movable range limiting holes 571 both can be one or multiple.The shape of movable range limiting holes 571 can also be adopted
With the shape different from present embodiment, such as rectangle or circle.
Figure 13 is the schematic diagram for the DMD substrate bottom surfaces that first embodiment is related to.
As shown in figure 13, on the lower surface (surface of the side of top plate 551) of DMD substrates 552, and on subplate 513
The relative position of position detecting magnet 541 on, provided with Hall sensor 542.Hall sensor 542 is a 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 DMD551 position.
The top plate 511 and substrate 512 formed in present embodiment with magnetic material constitutes and plays yoke effect, comprising drive
Employ magnet 531 and the drive division and magnetic circuit of driving coil 581.
By above-mentioned composition, the flux produced in drive division concentrates on top plate 511 and substrate 512, can suppress flux and let out
Beyond draining between top plate 511 and substrate 512.
So, just can reduce Hall sensor 542 on the DMD substrates 552 of the side of 511 upper surface of top plate one by
Comprising driving with the influence of magnet 531 and driving with the magnetic field formed in the drive division of coil 581.Therefore, being based in output
Hall sensor 542 can will not be driven what is produced in portion during the signal of the magnetic density change of position detecting magnet 541
The influence in magnetic field, therefore, drive control part 12 can accurately grasp DMD551 position.
As described above, the output for the Hall sensor 542 that drive control part 12 influences to be reduced according to portion driven, energy
Enough positions with good accuracy detection DMD551.Therefore, drive control part 12 can according to the DMD551 detected position,
Control the size of current in each driving coil 581 and direction, high-precision control DMD551 position.
On the driving as drive division quantity and position of magnet 531 and driving coil 581 etc., as long as can be by
Movable platen 553 is moved to optional position, it would however also be possible to employ different from the composition of present embodiment.
For example, driving magnet 531 can be arranged on substrate 512, and driving coil 581 is arranged on movable platen
On the surface of 553 side of substrate 512.Driving magnet 531 can also be arranged on movable platen 553, and by driving coil
581 are arranged on top plate 511 or substrate 512.And then, position detecting magnet 541 is arranged on DMD substrates 552, and will suddenly
Your sensor 542 is arranged on the upper surface of subplate 513.Furthermore, driving of the driving with magnet 531 and driving coil 581 will be included
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, the weight increase of mobile unit 55 can cause position control to 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 in addition, can reduce flux leaks into position detection part, top plate 511 and each several part of substrate 512 from drive division
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 to at least a portion of magnetic material formation subplate 513, to rise
To yoke effect.Furthermore, at least a portion 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 drive division, nonmagnetic substance formation substrate 512 can also be used.
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 the cylindricality heat unit 563 for being used to heat release, supporting are contacted with DMD
The pillar 561 of DMD substrates 552, the connecting pole 562 for connecting movable platen 553.
As shown in figure 13, the part that DMD551 is installed on DMD substrates 552 is provided 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, the medium pore 570 (Figure 12) of movable platen 553, with
And the louver 556 (Figure 13) of DMD substrates 552, to contact DMD bottom surfaces.
In order to improve DMD551 cooling effect, it can also be set between the heat unit 563 and DMD551 of radiator 554
It is capable of the heat transfer sheet of elastic deformation.The heat conductivity between the heat unit 563 of radiator 554 and DMD551 is improved with heat transfer sheet
Can, improve DMD551 cooling effect.
Four, 554 upper surface periphery of radiator position is provided with pillar 561, and these pillars 561 are respectively from the upper of radiator 554
Surface is prominent to Z1 directions.As illustrated in figures 11 and 13, the corresponding position of pillar 561 on DMD substrates 552 with radiator 554
Put formation screw 555.As shown in figure 14, the insertion of screw 564 screw 555, the upper of pillar 561 is fixed on by DMD substrates 552
End.
Six positions are provided with connecting pole 562,562 points of these connecting poles around the heat unit 563 of the upper surface of radiator 554
Do not protruded from the upper table of radiator 554 towards Z1 directions.Connecting pole 562 is fixed on the upper end of movable platen 553 for example, by screw etc..
Radiator 554 is connected by connecting pole 562 with movable platen 553.
Height of the pillar 561 with connecting pole 562 on Z1Z2 directions is different, respectively formed and DMD substrates 552 between and
Regulation spacing between movable platen 553.
Here, in order to improve cooling effect, in the state of DMD substrates 552 are by the fixed bearing of pillar 561, will radiate
The heat unit 563 of device 554 is set to be pressed against on DMD551 bottom surface.In this case, DMD551 is put by radiator 554
Hot portion 563 is pressed, and is likely to result in DMD substrates 552 and is bent.If the bending that DMD substrates 552 occur has influence on movable platen 553,
Then it is difficult to the position of high-precision control mobile unit 55, so that it is unstable to occur DMD551 shift actions, causes projected image matter
Amount declines.
In this regard, mobile unit 55 of the present embodiment as described above, DMD substrates 552 by radiator 554 pillar
561 supporting, movable platen 553 is connected with the connecting pole 562 of radiator 554.So, DMD substrates 552 and movable platen 553 are distinguished
The different piece of radiator 554 is connected, or is supported by the different piece of radiator 554, thus for example in DMD substrates 552
When bending, it can also reduce the influence that the bending of DMD substrates 552 is produced to movable platen 553.
Therefore, image generation unit 50 of the present embodiment can improve the stabilization of the shift action of projected image
Property, high-precision control DMD551 position, mobile projector image improves resolution ratio.
<Image projection>
As described above, in projecting apparatus 1 of the present embodiment, for generating the DMD551 of projected image located at movable
Unit 55, its position is controlled by the drive control part of systems control division 10.
For example, drive control part 12 in image projection with the specified period of correspondence frame speed, control mobile unit 55
Position high-speed mobile between multiple positions of multiple arrangement of micro mirrors spacing less than DMD551.Now, 11 pairs of image control portion
Each position is answered to send picture signal, the projected image being moved to generate to DMD551.
For example, drive control part 12 is moved back and forth with specified period between position P1 and P2, the distance between P1 and P2
It is less than DMD551 arrangement of micro mirrors spacing on X1X2 directions and Y1Y2 directions.Now, the control of image control portion 11 DMD551 lifes
Into the projected image being moved corresponding with each position, the resolution ratio of projected image can be brought up into DMD551 is had
Resolution ratio approximately twice as.Moreover, increase DMD551 shift position, can bring up to the resolution ratio of projected image
More than twice of DMD551.
So, the control of drive control part 12 DMD551 shift actions together with mobile unit 55, image control portion 11 is controlled
The generation projected image corresponding with DMD551 position, more than DMD551 resolution ratio high-resolution is reached so as to project
Image.
Moreover, projecting apparatus 1 of the present embodiment is controlled by drive control part 12, DMD551 and mobile unit 55 1
Rise and rotate, thus, it is possible to rotate projected image in the case where not needing reduced projection image.The image such as in DMD551 is given birth to
Into in projecting apparatus of the device for fixation, if not reduced projection image, just projected image aspect ratio can not kept constant
In the case of rotate projected image.In this regard, projecting apparatus 1 of the present embodiment enables to DMD551 to rotate, accordingly, it is not necessary to
Reduced projection image just can rotate projected image, and the adjustment such as line tilt is entered to projected image.
As described above, the DMD551 in projecting apparatus 1 of the present embodiment can be moved, do mobile dynamic by DMD551
Make, it is possible to increase the resolution ratio of projected image.In addition, being equipped on for the radiator 554 for cooling down DMD551 together with DMD551
Mobile mobile unit 55, it is thus possible to effectively cool down DMD551.
And then, mobile unit 55 of the present embodiment is respectively by the different piece (He of pillar 561 of radiator 554
Connecting pole 562) connection or supporting.When this composition make it that for example DMD substrates 552 bend, what the DMD substrates 552 were produced
Bending is also unlikely to have influence on movable platen 553, is conducive to DMD551 to keep stable shift action.
Furthermore, in the present embodiment, top plate 511 and substrate 512 play a part of yoke plate, prevent from including driving magnetic
The flux produced in iron 531 and the drive division of driving coil 581 leaks into outside.Therefore, being located at top plate on DMD substrates 552
The Hall sensor 542 of 511 upper surfaces side will not be driven the influence in the magnetic field produced in portion, can export and be examined with position
Survey and change corresponding signal with the magnetic density of magnet 541.Therefore, drive control part 12 can be based on the defeated of Hall sensor 542
Go out, the DMD551 of high precision test high-speed mobile position, with good precision controlling DMD551 position.
The composition of mobile unit 55 is not exposed to the limitation for the composition that above-mentioned embodiment is illustrated.For example located at radiator
554 shape, quantity and setting of pillar 561 and connecting pole 562 etc. constitute and are not limited to what is illustrated in above-mentioned embodiment
Constitute.
<Second embodiment>
Second embodiment is described below according to accompanying drawing.In the following description, for the embodiment party with having been described
Formula constitutes identical part and description is not repeated.
Figure 15 is the side view of the mobile unit 56 of second embodiment.
Mobile unit 56 shown in Figure 15 has the link supporting member of supporting DMD substrates 552 and movable platen 553 respectively
595, it is fixed on as the radiator 557 of cooling DMD551 exothermic parts on connection supporting member 595.
Connecting supporting member 595 has the pillar 596 of supporting DMD substrates 552 and the connecting pole 597 of connection movable platen 553.
Pillar 561 and company in the compositions and first embodiment such as shape, quantity and the position of pillar 596 and connecting pole 597
The composition for connecing post 562 is identical.
Radiator 557 has the cylindricality heat unit 568 for being used for cooling down DMD551, and connection support is fixed on screw 565
The side of lower surface one (side opposite with movable platen 553) of part 595.Heat unit 568 run through located at connection supporting member 595 in
The bottom surface of medium pore, thereon end contact DMD551 on the corresponding parts of DMD551.
In the mobile unit 56 of second embodiment, DMD551 is subtracted by the cooling of the heat unit 568 of radiator 557
The generation for the problems such as DMD551 temperature rises caused action bad or failure is lacked.Moreover, DMD substrates 552 and movable platen 553
Connected or support by the different piece (pillar 596 and connecting pole 597) of connection supporting member 595 respectively, it is thus possible to suppress
The image that bending of DMD substrates 552 etc. is produced to movable platen 553, improves the stability of DMD551 shift actions.
Image projection system of the present embodiment, video generation device and image projection device are the foregoing described,
But, the present invention is not limited to the embodiments described above, it is allowed to above-mentioned embodiment is carried out in scope of the invention various
Change and improvement.
Claims (10)
1. a kind of video generation device, it is characterised in that
With the fixed cell comprising the first fixed plate and the second fixed plate and can the fixed cell supporting under move
Mobile unit,
The mobile unit has：
First movable platen, can moved under being supported between first fixed plate and second fixed plate；
Second movable platen, is set as between first movable platen clipping first fixed plate；
Image production part, is located on second movable platen, for generating image；And,
Supporting member is connected, is set as between first movable platen clipping second fixed plate, it is movable with described first
Plate is connected, and supports second movable platen.
2. video generation device according to claim 1, it is characterised in that the connection supporting member has heat unit,
The heat unit contacts described image generating unit, the heat to dissipate the image production part.
3. video generation device according to claim 1, it is characterised in that the mobile unit has exothermic parts, should
Exothermic parts are supported by the connection supporting member, are in contact with described image generating unit, to dissipate image generation
The heat in portion.
4. video generation device as claimed in any of claims 1 to 3, it is characterised in that have：
Drive division, wherein comprising being oppositely arranged between first fixed plate and first movable platen or described first can
Dynamic driving magnet and driving coil between plate and second fixed plate so that the mobile unit is relative to the fixation
Unit is relatively moved；And,
Position detection part, wherein including the position detection being oppositely arranged between first fixed plate and second movable platen
With magnet and Magnetic Sensor, for detecting position of the mobile unit relative to the fixed cell,
At least a portion of first fixed plate is formed with magnetic material.
5. video generation device according to claim 4, it is characterised in that
The driving is located in first fixed plate or second fixed plate with magnet,
The driving coil is located on first movable platen.
6. the video generation device according to claim 4 or 5, it is characterised in that
The Magnetic Sensor is located on second movable platen,
The position detecting magnet is located in first fixed plate.
7. the video generation device according to claim 4 or 5, it is characterised in that
The fixed cell has the 3rd fixed plate, and it is described second movable that the 3rd fixed plate is located at first fixed plate
The side of plate one,
The Magnetic Sensor is located on second movable platen,
The position detecting magnet is located in the 3rd fixed plate.
8. the video generation device according to any one in claim 4 to 7, it is characterised in that second fixed plate
At least a portion formed with magnetic material.
9. the video generation device according to any one in claim 4 to 8, it is characterised in that have：
Drive control part, for controlling the drive division；And,
Image control portion, for generating picture signal corresponding with the position of the mobile unit, and the picture signal is sent to
Described image generating unit,
Described image generating unit is the DMD of multiple arrangement of micro mirrors formation, and the micro mirror is adjusted based on described image signal
The light of light source transmitting processed,
The drive control part controls the drive division so that the drive division 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, it is characterised in that have：
Video generation device in claim 1 to 9 described in any one；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 true CN106997140A (en) | 2017-08-01 |
| CN106997140B CN106997140B (en) | 2019-05-03 |
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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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| 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 |
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| 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 |
| US20140036237A1 (en) * | 2012-08-06 | 2014-02-06 | Seiko Epson Corporation | Optical device, projector, and method of manufacturing optical 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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2016
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| 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 |
| US20050179876A1 (en) * | 2004-02-18 | 2005-08-18 | Seiko Epson Corporation | Optical device and projector |
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| JP2012088723A (en) * | 2011-12-01 | 2012-05-10 | Canon Inc | Projection type image display device |
| US20140036237A1 (en) * | 2012-08-06 | 2014-02-06 | Seiko Epson Corporation | Optical device, projector, and method of manufacturing optical 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 |
| CN106997140B (en) | 2019-05-03 |
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