CN106468830A - Three-dimensional imaging display instrument - Google Patents
Three-dimensional imaging display instrument Download PDFInfo
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- CN106468830A CN106468830A CN201510515713.6A CN201510515713A CN106468830A CN 106468830 A CN106468830 A CN 106468830A CN 201510515713 A CN201510515713 A CN 201510515713A CN 106468830 A CN106468830 A CN 106468830A
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
- G02B30/50—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images the image being built up from image elements distributed over a 3D volume, e.g. voxels
- G02B30/54—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images the image being built up from image elements distributed over a 3D volume, e.g. voxels the 3D volume being generated by moving a 2D surface, e.g. by vibrating or rotating the 2D surface
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Abstract
The invention discloses a kind of three-dimensional imaging display instrument.In the circuit part of this three-dimensional imaging display instrument, control chip receives coloured image display signal, disassembles into multichannel monochrome signal, delivers on corresponding DLP projection module, generates corresponding monochromatic projection image on DLP projection module；Control chip sends synchronous control signal simultaneously, to motor-drive circuit, drives the mobile controlled motor of display screen and varifocal mirror controlled motor, does synchronizing moving, to reach the synchronization of the projection display screen of projected image and movement.The projected image of all of quick movement is overlapped mutually, and reaches the effect that 3-D view shows.
Description
Technical field
The present invention relates to a kind of three-dimensional imaging display instrument, specifically, the present invention relates to a kind of
Done on the display screen simultaneously and rapidly reciprocating by projecting image onto, with several perpendicular to aobvious
The rapid superposition of the equatorial projection image simultaneously and rapidly translating is done on display screen direction, thus being formed
The display instrument of three-dimensional imaging.The invention belongs to electronic image display technology field.
Background technology
Existing electronic image shows that predominantly two-dimensional image shows.The 3-D view of minority shows
Show to be also actually that two-dimensional image shows, same projection display screen projects two two simultaneously
Dimensional plane images, beholder filters the light of different images by wearing a kind of special glasses, makes
Different images arrives separately at right and left eyes, thus simulating three-dimensional image.
For example, three-dimensional image is simulated by optical spectroscopy.That is, in the camera lens of two projectors
The orthogonal polaroid in one direction of front placement respectively, two projectors simultaneously will be flat for two width two dimensions
Face image projection is on same projection display screen.Beholder wears a polarising glass, polarising glass
The polarization direction of two eyeglasses in left and right be mutually perpendicular to, each eye can only see corresponding picture,
So eyes see that different contents will form a three-dimensional image in brains.
Again for example, three-dimensional image is simulated by color point-score.That is, two different visual angles are clapped
The image taken the photograph is printed in same pair picture with two kinds of different colors respectively, and shows.During viewing,
Beholder can be formed in the brain by wearing the anaglyph spectacleses that one about eyeglass is different colours
One three-dimensional image.As by the image of two different visual angles shootings respectively with red, blue two kinds
Color is printed in same pair picture, and shows.During viewing, beholder wears red indigo plant glasses,
Can only see under red eyeglass redness image, blue eyeglass can only see blueness image, two
The different images that eyes are seen overlap to form a three-dimensional stereo-picture in the brain.
Again for example, three-dimensional image is simulated by time-sharing procedure.That is, beholder wears one and stands
Body glasses, left and right two eyeglass of this anaglyph spectacles adopts Electronic Control, is shown according to display screen
About content-control, the printing opacity of two eyeglasses and lighttight switching are so that human eye can only see printing opacity
Picture under state, eyes see the picture of different time, form three-dimensional standing in the brain
Body image.This method needs continually to switch display picture, and being also accomplished by display can provide
Sufficiently fast refresh rate, is just avoided that the flicker of picture.
In a word, existing three-dimensional image display technology is mostly by wearing a kind of special glasses, making
Two eyes in left and right are respectively seen different, detached two dimensional surface image, then in big intracerebral this
Two Image compounding/experience a three-dimensional image.
Document is recorded also by line holographic projections technology (front-projected holographic
Display) it is also referred to as virtual image technology and forms three-dimensional image, its principle is using interference and to spread out
Penetrate principle record the real 3-D view of reconstructed object.For example：
A kind of air projection and interaction are invented in masschusetts, U.S.A one postgraduate being ChadDyne
Technology, it can project the image providing interactive function on the wall that air-flow is formed.Image is thrown
Penetrate on the droplet that water vapour liquefaction is formed, unbalanced due to molecular vibration, formed level and
The very strong image of third dimension.
Japanese firm ScienceandTechnology has invented one kind and can project reality with laser beam
The 3D image of body, when this technology is using nitrogen and oxygen dispersion in the aie, the gas being mixed into
Body becomes scorching hot slurry like material, and forms an of short duration 3D rendering in atmosphere.This method
Mainly constantly carry out small-sized explosion in atmosphere to realize.
The graduate research worker of Creative Science and Technology Co. Ltd of University of Southern California announces that they successfully develop one
Kind of 360 degree of holographic display screen, this technology be by image projection on a kind of mirror of high-speed rotation
Thus realizing 3-D view.Reach display screen refresh rate:4320～5760 width/second, image is offered an explanation
Rate:768x768, color depth:Monochromatic.
Content of the invention
It is an object of the invention to provide a kind of new three-dimensional imaging display instrument, it passes through to scheme
Do on the display screen simultaneously and rapidly reciprocating, with several on display screen direction as projecting to
The rapid superposition doing the equatorial projection image simultaneously and rapidly translating forms the aobvious of three-dimensional imaging
Show instrument.
For realizing above-mentioned goal of the invention, the present invention adopts following technical schemes：A kind of three-dimensional vertical
Body is imaged display instrument, and it includes the display screen that can quickly reciprocate, and continuous vari-focus project microscope group,
The optics composite part of 3xN road monochrome DLP projected image, drives the mechanical part of display screen movement,
And systems control division divides；
The optics composite part of described 3xN road monochrome DLP projected image includes：N road redness DLP
Projection module, N road green DLP projection module, N road drop shadow blue module；3xN half anti-half
Lens, every road projection module corresponds to 1 half-reflecting half mirror；1 anti-indigo plant red green lens and 1 are anti-thoroughly
It is popular in green lens；
Homochromy N road DLP projection module is arranged on same axle, three kinds of colors of red, green, blue
DLP projection module is arranged in X, Y, Z axis respectively；Every road DLP projection module is through half-reflection and half-transmission
Mirror, counter be popular in green lens, anti-blue thoroughly red green lens arrive the optical path distance phase of continuous vari-focus projection microscope group
Deng, and the minute surface center of said lens is respectively positioned on corresponding axis, minute surface becomes 45 degree of folders with axis
Angle；
Described systems control division divides output control signal, and making described every road monochrome DLP project module will
Shown three-dimensional image disassembles into the monochrome signal of multichannel corresponding difference brightness, generates and corresponds to
The monochromatic projection image of different brightness；Meanwhile, control section sends synchronous control signal, by driving
Motor in synchrony drives display screen and described continuous vari-focus projection microscope group mirror to move, and makes projected image and shifting
Dynamic projection display screen is synchronous, and the projected image of all of quick movement is overlapped mutually, and generates three-dimensional
Stereo-picture.
Every road DLP of the present invention projects the light source of the brightness such as module employing, through described half-reflection and half-transmission
Mirror, counter be popular in green lens, anti-indigo plant red green lens merge thoroughly, synthesize the projected image of high color depth.
In the preferred embodiments of the present invention, described every road monochrome DLP projection module includes：Red
The bright light source such as green or blue, condenser lenses, projection lens, DLP chip；Send out etc. bright light source
The red green blue monochromatic light going out, forms nearly directional light after line focus lens, through projection lens reflection, irradiate
To on DLP chip, through the reflection of DLP chip, then go out through projection lens transmission.
In the preferred embodiments of the present invention, described continuous vari-focus projection microscope group is that a LINEAR CONTINUOUS becomes
Burnt light path,, by 2 fixing lens, 1 zoom lens and 1 compensation zoom lens are constituted for it；Institute
State the two ends that fixing lens are located at fixed mount, zoom lens and compensation zoom lens are located at fixing lens
Between；Zoom lens are connected with zoom lens motor and cam, position sensor；Compensate and become
Focus lens are connected with offset lens motor and cam, position sensor；The letter of position sensor
Number outfan is connected with the control chip in control circuit, and the control signal outfan of control chip leads to
Cross motor-drive circuit respectively with zoom lens motor, offset lens motor control end phase
Even；Described zoom lens move along a straight line, and compensate zoom lens and do curvilinear motion.
In the preferred embodiments of the present invention, described systems control division divides including control chip, 3xN
Individual DLP chip drive circuit, drive display screen quickly move motor-drive circuit, drive zoom
The motor-drive circuit of projection microscope group movement；
The signal output part of position sensor is connected with the signal input part of control chip, by display screen,
Zoom projects the location transmission of microscope group to control chip, the synchronous control signal outfan of control chip
Project the control of microscope group motor by motor-drive circuit respectively with display screen motor, zoom
End processed is connected, the movement of the synchronous movement driving display screen and zoom projection microscope group；
Multiple I/O mouths of control chip are connected with 3N DLP chip drive circuit, control DLP
The action of chip；
Described control chip output control signal by DLP chip produce several, single color two-dimension plane
Image；Meanwhile, control chip output synchronous control signal, synchronously drives display screen by motor
Mobile and zoom projects the movement of microscope group, and the two-dimensional image synchronized projection making generation is to display screen
On, and then so that all of two-dimensional image projecting on display screen is overlapped mutually, reach three-dimensional
The effect that image shows.
In the preferred embodiments of the present invention, described display screen uniform rectilinear's back and forth movement frequency is more than
25Hz's；On a certain position in display screen moving process, moving display screen meeting in a cycle
Occur twice, the refresh rate of display image is more than 50Hz.
The present invention adopts multiple half-reflecting half mirrors, and the image overlay of several monochromatic constant brightness is synthesized one
The monochrome image of the many intensity levels of width, and the luminance difference of each width image is that binary system series is poor, beneficial to number
The coding permutations of word picture signal control.
The present invention is popular in green lens and anti-indigo plant red green lens thoroughly using counter, and RGB monochrome image is synthesized
For coloured image.
Advantages of the present invention：Beholder can watch high colorfulness, true to nature without wearing special spectacles
Three-dimensional image；Multiple stage display instrument can do seamless spliced composition large-scale 3D display matrix or aobvious
Show wall.
Brief description
Fig. 1 (a), Fig. 1 (b) are three-dimensional imaging exemplary plot of the present invention；
Fig. 2 is perspective view of the present invention；
Fig. 3 constitutes structural representation for specific embodiment of the invention opticator；
Fig. 4 is the embodiment of the present invention 24 road DLP projected image optics composite part structural representation；
Fig. 5 is present invention monochrome DLP projection module structure schematic diagram；
Fig. 6 is present invention monochrome DLP projection module light path schematic diagram；
Fig. 7 is each composition portion of the specific embodiment of the invention 24 road DLP projected image optics composite part
Part location diagram；
Fig. 8 is 3/4 generalized section for continuous vari-focus of the present invention projection microscope group structural representation；
Fig. 9 is opticator zoom principle schematic of the present invention；
Figure 10 is moving display screen frame for movement schematic diagram of the present invention；
Figure 11 is control section of the present invention theory diagram；
Figure 12 is three-dimensional imaging display instrument single channel projecting light path of the present invention schematic diagram；
The DLP chip appearance schematic diagram that Figure 13 uses for the present invention；
Figure 14 is DLP chip internal structure schematic diagram；
Figure 15 is DLP chip operation principle schematic；
Figure 16 is that the embodiment of the present invention 24 road DLP projects module data structure schematic diagram；
Figure 17 is another embodiment of the present invention 6 road DLP projected image optics composite part structural representation
Figure；
Figure 18 shows for another embodiment of the present invention 15 road DLP projected image optics composite part structure
It is intended to；
Figure 19 shows for another embodiment of the present invention 30 road DLP projected image optics composite part structure
It is intended to.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and detailed description.
Fig. 1 (a), Fig. 1 (b) are three-dimensional imaging exemplary plot of the present invention, as illustrated, the present invention shows
The principle showing three-dimensional image is：Shown three-dimensional image is decomposed into N panel height differentiate
Rate, the two-dimensional image of high color rate, more successively upright projection on the display screen quickly moving；
Specific two-dimensional image must project to the ad-hoc location that display screen moves to reach, could exactly
Reduce the 3-D view being decomposed, the two-dimensional image of all displays is superimposed and just synthesizes reduction
For this 3-D view.
Such as one three-dimensional spherical by 640 width equatorial projection image overlay synthesis of display.
As shown in Fig. 1 (a), Fig. 1 (b), this three-dimensional spherical is the circle of the two dimensional surfaces different by 640 width radiuses
Shape image overlay forms.In figure 1 ..., 128 ..., 256 ..., 384 ..., 512 ...,
640 is which width picture of display, the no circle diagram shape (1 point) when display screen moves into place 1
Project on display screen, display screen moves to has the circular pattern of a corresponding size to throw during the next position
Shadow on display screen, and so on, when display screen moves to N position, just have the circle of a corresponding size
Shape graphic projection on display screen, all of display Graphics overlay just synthesized together one three-dimensional
Spherical.
In order in the case of not wearing special glasses, by quick moving display screen, thus
Make beholder just can see a stereoscopic three-dimensional image, constitute the present invention display screen need to do frequency big
Uniform rectilinear's back and forth movement in 25Hz.
On a certain position in display screen moving process, the display screen reciprocating is in a cycle
Occur twice, so the refresh rate projecting to the display image on this position is display screen travel frequency
Two times, that is, be more than 50Hz (more than 50Hz, human eye does not just see beating of image).As in display
Display 640 width images in the moving range of screen, then the refreshing frequency of projected image is
640x50=32kHz.Only DLP chip can reach so high refreshing frequency at present, such as TI company
DLPC410, DLP7000 chip producing, supports the monochromatic refresh rate of 32kHz, and
The monochromatic refresh rate of 48kHz when DLPR4101 is used together, can be supported.
In the example of the present invention, projected image DISPLAY ORDER is:1,2…639,640,
640,639 ... 2,1, complete once to reciprocate.For ensureing the image that DLP chip projects, it is shown in
On correct shift position, synchronizing signal must be sent by control chip, control simultaneously and drive display screen to move
Dynamic motor and DLP chip, to reach the movement of display screen and both synchronizations of projection of image.
As shown in Fig. 2 three-dimensional imaging display instrument disclosed by the invention includes:Shifting can quickly be come and gone
Dynamic display screen 1, continuous vari-focus project microscope group 2, and the optics of 3xN road monochrome DLP projected image closes
Become part 3, drive the mechanical part of display screen movement, and systems control division divides.
The mechanical part driving display screen movement includes：The motor 4 of moving display screen, mobile aobvious
The driving cam 5 of display screen, display screen moving guide rail and support 6.
As shown in figure 3, projection display screen 1 through motor 4 and driving cam 5 in moving guide rail
On do and quickly reciprocate, 3xN road monochrome DLP projected image is deep through optics synthesis one panel height color
The projected image of degree, projects microscope group 2 through continuous vari-focus, projects on display screen 1, is formed three-dimensional vertical
Body image.
As shown in figure 3, the optics composite part 3 of 3xN road of the present invention monochrome DLP projected image wraps
Include：N road redness DLP projection module RDB1 ... ..RDBn, N road green DLP projection module
GDB1 ... GDBn, N road drop shadow blue module BDB1 ... BDBn；3xN half-reflection and half-transmission
Mirror, every road projection module corresponds to 1 half-reflecting half mirror；1 anti-indigo plant thoroughly red green lens and 1 anti-red
Reveal the green lens.
Fig. 4 is the present invention one specific embodiment, is the optics composite part of 24 road DLP projected images
Structural representation.As illustrated, the drawing reference numeral 2 of in figure projects microscope group for continuous vari-focus.24 tunnels
DLP projected image optics composite part includes：8 tunnel blueness DLP projection module 3-3 to 3-10,8
Road green DLP projection module 3-11 to 3-18,8 tunnel redness DLP projection module 3-19 to 3-26；
24 half-reflecting half mirror 3-27 to 3-50, every road projection module corresponds to 1 half-reflecting half mirror；1
Anti- indigo plant red green lens 3-1 thoroughly；1 counter to be popular in green lens 3-2.
Every road DLP projects the light source of the brightness such as module employing, through half-reflecting half mirror 3-27 to 3-50
And counter be popular in green lens 3-2, anti-indigo plant red green lens 3-1 merges thoroughly, synthesize brightness and meet binary system
The projected image of the high color depth of digit relation.
Tu5Wei mono- tunnel monochrome DLP projects the structural representation of module, Tu6Wei mono- tunnel monochrome DLP
The light path schematic diagram of projection module.As shown in Figure 5, Figure 6, every road DLP projection module includes：
Etc. bright light source 3-3-1 (this light source is red green or blue, can be LED light source), focus on
Lens 3-3-2, projection lens 3-3-3, DLP chip 3-3-4.The list sending etc. bright light source 3-3-1
Color (red green blue) light, forms nearly directional light after line focus lens 3-3-2, through projection lens 3-3-3
Reflection, is irradiated on DLP 3-3-4, through DLP chip 3-3-4 reflection more saturating through projection lens 3-3-3
Penetrate.
As shown in fig. 7, homochromy N road DLP projection module is arranged on same axle, red, green,
The DLP projection module of blue three-color is arranged in X, Y, Z axis respectively.Every road DLP projection
Module through half-reflecting half mirror, counter be popular in green lens, anti-indigo plant thoroughly red green lens to continuous vari-focus projection lens
The optical path distance of group 2 is equal；And the minute surface center of said lens is respectively positioned on corresponding axis, mirror
Face is with axis in angle of 45 degrees.The 3-3 to 3-26 of in figure represents that every road DLP projects the position of module
Put, 3-27 to 3-50 represents the position of each half-reflecting half mirror, 3-2 represents counter and is popular in green lens
Position, 3-1 represents the position of anti-blue thoroughly red green lens, and 2 represent that continuous vari-focus project the position of microscope group.
Every road DLP projects the multiple to the distance of each half-reflecting half mirror for D for the module, and half-reflecting half mirror is to instead
Be popular in green lens, counter be popular in green lens to anti-indigo plant red green lens thoroughly, anti-indigo plant thoroughly red green lens to continuous
The distance that zoom projects microscope group is D.In the present embodiment, every road DLP projection module is to zoom
The distance of projection microscope group is all 10D, and that is, the integral multiple of D is equidistant.
Fig. 8 is continuous vari-focus of the present invention projection microscope group internal structure schematic diagram (i.e. 3/4 profile),
As illustrated, continuous vari-focus of the present invention projection microscope group 2 is a LINEAR CONTINUOUS zoom light path, it is by 2
Individual fixing lens 2-1,2-4,1 zoom lens 2-2 and 1 compensation zoom lens 2-3 is constituted；2-8
For shell, fixing lens 2-1,2-4 are located at the two ends of fixed mount, zoom lens 2-2 and compensation zoom
Lens 2-3 is located between fixing lens；Zoom lens 2-2 and zoom lens motor 2-5 and convex
Wheel 2-6, position sensor (photoelectronic coupler) 2-9 are connected, and compensate zoom lens 2-3 and compensation
Lens motor 2-5 and cam 2-7, position sensor 2-9 are connected.The signal of position sensor
Outfan is connected with control chip, and the control signal outfan of control chip passes through motor-drive circuit
It is connected with zoom lens motor, offset lens motor control end respectively.
The synchronizing signal producing when control chip, delivers to motor-drive circuit, then is driven by drive circuit
Dynamic linear electric motors drive zoom lens to do synchronous linear at the uniform velocity back and forth movement.Offset lens then equally by
The synchronizing signal that control chip produces makes motor-drive circuit work, and drives offset lens motor
Work, Motor drive compensates cam and does curvilinear motion, is continuously become with the overall linear reaching zoom lens
Burnt.Meanwhile, two groups of lens shift position signals that position sensor detects, send control chip back to, control
After coremaking piece compares and calculates, generate synchronizing signal.
As shown in figure 9, zoom lens 2-2 moves along a straight line, compensate zoom lens 2-3 and do curve fortune
Dynamic, thus reaching the function of LINEAR CONTINUOUS zoom.
The mechanical part structural representation that Figure 10 quickly reciprocates for moving display screen of the present invention, moves
Dynamic display screen 1, motor 4, driving cam 5, moving guide rail 6-2, rail brackets 6-1, electricity
Machine and cam support bearing bracket stand 6-3, photoelectronic coupler (position sampling) 6-4, mobile display platen bracket
6-5, supporting construction 6-6.
Figure 11 is present system control section theory diagram, as illustrated, systems control division subpackage
Include control chip (microprocessor), 3xN DLP chip drive circuit, driving display screen quickly move
Dynamic motor-drive circuit, zoom is driven to project the motor-drive circuit of microscope group movement.
The signal output part of position sensor is connected with the signal input part of control chip, by display screen,
Continuous vari-focus project the location transmission of microscope group to control chip, and the synchronous control signal of control chip is defeated
Go out end and microscope group motor is projected with display screen motor, zoom respectively by motor-drive circuit
Control end be connected, the synchronous movement driving display screen and zoom project the movement of microscope group.Control core
Multiple I/O mouths of piece are connected with 3N DLP chip drive circuit, control the action of DLP chip.
Control chip output control signal by DLP chip produce several, single color two-dimension plane picture；
Meanwhile, control chip output synchronous control signal, synchronously drive display screen mobile by motor and
Zoom projects the movement of microscope group, and the two-dimensional image synchronized projection making generation, on display screen, is entered
And so that all of two-dimensional image projecting on display screen is overlapped mutually, reach 3-D view and show
The effect shown.
Figure 12 is three-dimensional imaging display instrument single channel projecting light path of the present invention schematic diagram, and 1-1 is projection
Display screen moves to position during far-end, and 1-2 moves to position during near-end, 2-1,2-4 for projection display screen
For fixed lens, 2-2 is the position to far-end for the varifocal mirror movement, and 2-5 is varifocal mirror movement to near-end
Position, 2-3 be zoom compensating glass movement to far-end position, 2-6 be zoom compensating glass movement extremely
The position of near-end, 3-3 projects module for DLP.When projection display screen moves to remote location 1-1,
Varifocal mirror synchronously moves to position 2-2, and zoom compensating glass synchronously moves to position 2-3, and DLP projects module
Constant with the position of fixed lens.When projection display screen moves to proximal location 1-2, varifocal mirror is synchronous
Move to position 2-5, zoom compensating glass synchronously moves to position 2-6, and now, DLP projects to proximal location
Standoff height, and highly consistent during far-end, thus ensureing the in the same size of projection size.Zoom
Camera lens does straight line at the uniform velocity back and forth movement, compensates camera lens and does at the uniform velocity twists and turns motion, to reach zoom
The overall linear continuous vari-focus of mirror, thus reaching in the stroke of whole projection display screen, projection size
In the same size.
The DLP chip appearance schematic diagram that Figure 13 uses for the present invention, Figure 14 is DLP chip internal
Structural representation, Figure 15 is DLP chip operation principle schematic.TI company is for example selected to produce
DLP7000 chip, have 1024x768 micro-reflector in the reflection windows of this DLP, micro- instead
Penetrate mirror in opening, light is reflected to projection lens, is projected on display screen.Close and
During dormant state, light is reflected on absorbing barrier, is predominantly absorbed that (detailed content refer to TI DLP700
Chip handbook).
The present invention taking show 24 bit digital images as a example, illustrates.
In control circuit part, control chip respectively with 24 DLP (digital light processing)
Drive circuit connects, and 24 DLP drive circuits are connected respectively to corresponding 24 DLP chips,
Each DLP chip produces the monochromatic two-dimensional image of a width, and it is assorted that its brightness corresponds to RGB
Eight-digit binary number a certain position.
When shown three-dimensional image digital signal delivers to control chip, control chip output control is believed
Number, make DLP chip that three-dimensional image digital signal is split as the monochrome signal on 24 tunnels, deliver to correspondence
24 DLP chips on.As the monochromatic image signal of green GDB1, deliver to GDB1 corresponding
The monochromatic projection image of green, on DLP chip, is generated on DLP chip.
Due to being irradiated on green corresponding DLP chip using the green light source waiting brightness, light beam warp
After the reflection of DLP chip, through 8 half-reflecting half mirrors, 8 bundle green glows are combined into a branch of, wherein,
After GDB1 reflection, then after 8 half-reflecting half mirrors, after its brightness is for GDB1 reflection
1/ (2^8) i.e. [1/256],
After GDB2 reflection, then after 7 half-reflecting half mirrors, after its brightness is for GDB2 reflection
1/ (2^7) i.e. [1/128],
After GDB3 reflection, then after 6 half-reflecting half mirrors, after its brightness is for GDB3 reflection
1/ (2^6) i.e. [1/64],
…
After GDB8 reflection, then after 1 half-reflecting half mirror, after its brightness is for GDB8 reflection
1/ (2^1) i.e. [1/2],
After 8 bundle green glows merge, the brightness of each DLP chip meets binary Series Relations, by controlling
The Push And Release of each DLP chip, it may be achieved the regulation to 256 grades of green glow brightness.
In the same manner, it may be achieved the regulation to 256 grades of red and blue luminences.
It is popular in green lens, HONGGUANG and green combiner through counter again, afterwards, through anti-indigo plant red green lens thoroughly, complete red
Turquoise trichroism synthesis, forms the projected image that color is 24bit depth.
Because red green be combined into a branch of, anti-red green lens make red-green glow transmission to indigo plant thoroughly, 90 degree of blue light perpendicular to
Red-green glow is incident, through direct reflection, is that RGB is trichroism with the red green bundle that closes.
Corresponding to RGB everybody DLP chip of assorted eight-digit binary number, all using etc. brightness
RGB light source irradiate thereon, the reflected light through DLP chip for a certain color in RGB, then pass through
8 half-reflecting half mirrors synthesize a width monochrome image, due to the half-reflecting half mirror that each reflected light is passed through
Number different, so that the corresponding brightness on each DLP chip image in post synthesis differs as (1/2)
Series Relations, meet number of bits relation, 8 road light beams synthesize the monochrome image of 256 rank brightness.
The each monochrome image of RGB, is popular in green mirror through counter, carries out red green conjunction and restraints, then through anti-indigo plant red green mirror thoroughly,
Carry out RGB and close the image for 24bit color depth for the bundle.
By the image of RGB 24 width monochromatic difference brightness, close the figure of Shu Weiyi width 24bit color depth
Picture, more linear zoom projection lens, project on the display screen of movement.For ensureing to move model in display screen
In enclosing, project to the concordance of the projection picture size size on display screen.Zooming-projection camera lens
Focal length, will do synchronous linear zooming with the movement of display screen.
The two is synchronized with composite projection's image of 24 road DLP chips simultaneously, is specifically being shown with meeting
Projection image on display screen position, required for projection.All of mobile projector image rapid superposition, closes
Become a three-dimensional image.
Figure 16 is the specific embodiment of the invention, 24 road DLP projection module data structures.Such as 24bit
Color depth, the binary data composition that RGB is each 8, if red first data RDB1 is bright be
1, then the brightness that 8 data represent is:RDB1:1,RDB2:2,RDB3:4,RDB4:8,RDB5:
16,RDB6:32,RDB7:64,RDB1:128. are synthesized together so that it may be formed to red luma
256 (0～255) level controls.Also 256 grades of controls to green and blue brightness can be formed in the same manner
System.Each 8 position digital signals of RGB combine formation 24bit color, the number of 16.7M level color
Word signal controls.
If waiting the brightness value that bright light source is irradiated to DLP back reflection to be 1, each DLP projects on display screen
Brightness see associated row.Do not remember the loss of projection lens.
It is irradiated to through reflection after DLP as the bright light source such as set, and the brightness value of 8 half-reflecting half mirrors is
1, associated row is shown in the brightness that each DLP projects on display screen.Do not remember the loss of projection lens.
Therefore, the one-to-one relationship of image digital signal and projected image, thus realize passing through
Control the change of image digital signal, reach the control to projected image.
For example show needed for a width 3-D view:1024x 768x 640 image refresh rate is 50Hz,
Be equivalent to 1024x 768 image of display one width two dimension, but image refresh rate is 32KHz.Therefore
Show width three-dimensional image as above, the transfer rate of its video data is：
Monochromatic image data transfer rate:1024x768x640x50=25.16Gbps
24 color image data transfer rates:25.16x 24=603.98Gbps
Therefore, the pattern generator of the data for offer 603.98Gb per second for the signal source, with current skill
Art, can adopt multiple grapics generator transmitted in parallel, and transmission signal then adopts the transmission of multi-path light pricker
To realize.
When the monochromatic image signal for 25.16Gbps for the transfer rate, it is sent to corresponding DLP driving chip,
DLP is driven to produce the monochromatic projection image for 32kHz for the corresponding image refresh rate, then through the light such as each
The light beam that source sends irradiates thereon, through DLP reflection, and projection lens, project on display screen.
Meanwhile, control chip gathers the position signalling of position sensor, compares calculating through signal, and output is same
Step signal, to motor-drive circuit, for driving display screen mobile motor, zoom mobile motor, and zoom
Compensate mobile motor, to reach the synchronizing moving of three.
If 18 color image data transfer rates：25.16x 18=452.88Gbps
If 30 color image data transfer rates：25.16x 30=754.8Gbps
In a word, color depth is higher, and view data transfer rate requires higher.
Figure 17 is another specific embodiment of the present invention, i.e. 6 road DLP projected image optics composite part.
As illustrated, the drawing reference numeral 2 of in figure projects microscope group for continuous vari-focus.6 road DLP projected images
Optics composite part includes：2 tunnel blueness DLP projection module 3-3,3-4,2 tunnel green DLP throw
Shadow module 3-11,3-12,2 tunnel redness DLP projection module 3-19,3-20；6 half-reflecting half mirrors
3-27,3-28,3-35,3-36,3-43,3-44, every road projection module corresponds to 1 half-reflection and half-transmission
Mirror；1 anti-indigo plant red green lens 3-1 thoroughly；1 counter to be popular in green lens 3-2.
2 homochromy road DLP projection modules are arranged on same axle, three kinds of colors of red, green, blue
DLP projection module is arranged in X, Y, Z axis respectively；Every road DLP projection module is through half-reflection and half-transmission
Mirror, counter be popular in green lens, anti-blue thoroughly red green lens arrive the optical path distance phase of continuous vari-focus projection microscope group
Deng, and the minute surface center of said lens is respectively positioned on corresponding axis, minute surface becomes 45 degree of folders with axis
Angle.
Figure 18 is another specific embodiment of the present invention, i.e. 15 road DLP projected image optics combining unit
Point.As illustrated, the drawing reference numeral 2 of in figure projects microscope group for continuous vari-focus.15 road DLP projections
Imagery optical composite part includes：5 tunnel blueness DLP projection modules, 5 tunnel green DLP projective modules
Group, 5 tunnel redness DLP projection modules；15 half-reflecting half mirrors, every road projection module corresponds to 1
Half-reflecting half mirror；1 anti-indigo plant red green lens thoroughly；1 counter to be popular in green lens.
5 homochromy road DLP projection modules are arranged on same axle, three kinds of colors of red, green, blue
DLP projection module is arranged in X, Y, Z axis respectively；Every road DLP projection module is through half-reflection and half-transmission
Mirror, counter be popular in green lens, anti-blue thoroughly red green lens arrive the optical path distance phase of continuous vari-focus projection microscope group
Deng, and the minute surface center of said lens is respectively positioned on corresponding axis, minute surface becomes 45 degree of folders with axis
Angle.
Figure 19 is another specific embodiment of the present invention, i.e. 30 road DLP projected image optics combining unit
Point.As illustrated, the drawing reference numeral 2 of in figure projects microscope group for continuous vari-focus.30 road DLP projections
Imagery optical composite part includes：10 tunnel blueness DLP projection modules, 10 tunnel green DLP projections
Module, 10 tunnel redness DLP projection modules；30 half-reflecting half mirrors, every road projection module corresponding 1
Individual half-reflecting half mirror；1 anti-indigo plant red green lens thoroughly；1 counter to be popular in green lens.10 homochromy tunnels
DLP projection module is arranged on same axle, the DLP projection mould splits of three kinds of colors of red, green, blue
It is not arranged in X, Y, Z axis；Every road DLP projection module through half-reflecting half mirror, counter be popular in green
The optical path distance that mirror, anti-blue thoroughly red green lens project microscope group to continuous vari-focus is equal, and said lens
Minute surface center be respectively positioned on corresponding axis, minute surface and axis are in angle of 45 degrees；
It is demonstrated experimentally that the DLP of varying number projects the projected image that module forms different color depth,
DLP projection module quantity is more, and the color depth of synthesis is higher.
Above laser scanning image projector provided by the present invention is described in detail.
To those skilled in the art, on the premise of without departing substantially from true spirit, it is done
Any obvious change, all will constitute to infringement of patent right of the present invention, will undertake corresponding
Legal responsibility.
Claims (8)
1. a kind of three-dimensional imaging display instrument it is characterised in that：It includes quickly reciprocating
Display screen 1, continuous vari-focus project microscope group 2,3xN road monochrome DLP projected image optics synthesis
Part 3, drives the mechanical part of display screen movement, and systems control division divides；
The optics composite part of described 3xN road monochrome DLP projected image includes：N road redness DLP
Projection module, N road green DLP projection module, N road drop shadow blue module；3xN half anti-half
Lens, every road projection module corresponds to 1 half-reflecting half mirror；1 anti-indigo plant red green lens and 1 are anti-thoroughly
It is popular in green lens；
Homochromy N road DLP projection module is arranged on same axle, three kinds of colors of red, green, blue
DLP projection module is arranged in X, Y, Z axis respectively；Every road DLP projection module is through half-reflection and half-transmission
Mirror, counter be popular in green lens, anti-blue thoroughly red green lens arrive the optical path distance phase of continuous vari-focus projection microscope group
Deng, and the minute surface center of said lens is respectively positioned on corresponding axis, minute surface becomes 45 degree of folders with axis
Angle；
Described systems control division divides output control signal, and making described every road monochrome DLP project module will
Shown three-dimensional image disassembles into the monochrome signal of multichannel corresponding difference brightness, generates and corresponds to
The monochromatic projection image of different brightness；Meanwhile, control section sends synchronous control signal, by driving
Motor in synchrony drives display screen and described continuous vari-focus projection microscope group mirror to move, and makes projected image and shifting
Dynamic projection display screen is synchronous, and the projected image of all of quick movement is overlapped mutually, and generates three-dimensional
Stereo-picture.
2. 3 D stereo display instrument according to claim 1 it is characterised in that：Described every road
DLP project module using etc. brightness light source, through described half-reflecting half mirror, counter be popular in green lens,
Anti- red green lens merge indigo plant thoroughly, synthesize the projected image of high color depth.
3. 3 D stereo display instrument according to claim 1 it is characterised in that：Described every road
Monochromatic DLP projection module includes：The bright light source such as red green or blue, condenser lenses, projection
Prism, DLP chip；
The red green blue monochromatic light sending etc. bright light source, forms nearly directional light after line focus lens, through throwing
Shadow prismatic reflection, is irradiated on DLP chip, through the reflection of DLP chip, then through projection lens transmission
Go out.
4. 3 D stereo display instrument according to claim 1 it is characterised in that：Described continuous
Zoom projection microscope group is a LINEAR CONTINUOUS zoom light path, and it is by 2 fixing lens, 1 zoom lens
Constitute with 1 compensation zoom lens；
Described fixing lens are located at the two ends of fixed mount, and zoom lens and compensation zoom lens are located at admittedly
Between fix-focus lens；
Zoom lens are connected with zoom lens motor and cam, position sensor；Compensate zoom
Lens are connected with offset lens motor and cam, position sensor；
The signal output part of position sensor is connected with the control chip in control circuit, control chip
Control signal outfan pass through motor-drive circuit respectively with zoom lens motor, compensate thoroughly
Mirror motor control end is connected；
Described zoom lens move along a straight line, and compensate zoom lens and do curvilinear motion.
5. 3 D stereo display instrument according to claim 1 it is characterised in that：Described system
Control section includes control chip, 3xN DLP chip drive circuit, driving display screen quickly move
Dynamic motor-drive circuit, zoom is driven to project the motor-drive circuit of microscope group movement；
The signal output part of position sensor is connected with the signal input part of control chip, by display screen,
Zoom projects the location transmission of microscope group to control chip, the synchronous control signal outfan of control chip
Project the control of microscope group motor by motor-drive circuit respectively with display screen motor, zoom
End processed is connected, the movement of the synchronous movement driving display screen and zoom projection microscope group；
Multiple I/O mouths of control chip are connected with 3N DLP chip drive circuit, control DLP
The action of chip；
Described control chip output control signal by DLP chip produce several, single color two-dimension plane
Image；Meanwhile, control chip output synchronous control signal, synchronously drives display screen by motor
Mobile and zoom projects the movement of microscope group, and the two-dimensional image synchronized projection making generation is to display screen
On, and then so that all of two-dimensional image projecting on display screen is overlapped mutually, reach three-dimensional
The effect that image shows.
6. 3 D stereo display instrument according to claim 1 it is characterised in that：Described display
Screen uniform rectilinear's back and forth movement frequency is more than 25Hz's；A certain position in display screen moving process
On, moving display screen occurs twice in a cycle, and the refresh rate of display image is more than 50Hz.
7. 3 D stereo display instrument according to claim 1 it is characterised in that：Using multiple
Half-reflecting half mirror, the image overlay of several monochromatic constant brightness is synthesized the achromatic map of the many intensity levels of a width
Picture, and the luminance difference of each width image is that binary system series is poor, beneficial to the coding row of data image signal
Row control.
8. 3 D stereo display instrument according to claim 1 it is characterised in that：The present invention adopts
It is popular in green lens and anti-indigo plant red green lens thoroughly with counter, RGB monochrome image is synthesized coloured image.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107290864A (en) * | 2017-08-18 | 2017-10-24 | 深圳惠牛科技有限公司 | It is a kind of based on the body three-dimensional display apparatus and method that circumferentially shield scanning |
| CN109087235A (en) * | 2017-05-25 | 2018-12-25 | 钰立微电子股份有限公司 | Image processor and relevant picture system |
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| CN104360565A (en) * | 2014-11-03 | 2015-02-18 | 苏州芯盟慧显电子科技有限公司 | Portable projector |
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| CN203587976U (en) * | 2013-10-31 | 2014-05-07 | 大连职业技术学院 | All-directional holographic photography display system |
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| CN109087235B (en) * | 2017-05-25 | 2023-09-15 | 钰立微电子股份有限公司 | Image processor and related image system |
| CN107290864A (en) * | 2017-08-18 | 2017-10-24 | 深圳惠牛科技有限公司 | It is a kind of based on the body three-dimensional display apparatus and method that circumferentially shield scanning |
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