CN202975583U - True three-dimension image display system - Google Patents
True three-dimension image display system Download PDFInfo
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- CN202975583U CN202975583U CN201220514977.1U CN201220514977U CN202975583U CN 202975583 U CN202975583 U CN 202975583U CN 201220514977 U CN201220514977 U CN 201220514977U CN 202975583 U CN202975583 U CN 202975583U
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Abstract
The utility model provides a true three-dimension image display system. A light source generates illumination light beams. A two-dimension acousto-optic modulator makes the illumination light beams deflected in two different directions. A digital light processing device receives the illumination light beams deflected by the two-dimension acousto-optic modulator and further modulates the illumination light beams to generate image light beams. A plurality of imaging zones of an imaging device receive corresponding image light beams and make the received images displayed on a display screen in different angles. Light rays projected on the display screen have different virtual optical centers. A multi-view-field three-dimension image display effect similar to an effect generated by a plurality of projector systems is then achieved. Motion visual differences in two different directions can be further realized. The true three-dimension image display system which can achieve three-dimension display effects by using a single light source further has the advantages of convenient calibration, simple structure and low cost.
Description
Technical field
The utility model relates to true dimension display technologies, relates in particular to a kind of true three-dimensional image display systems.
Background technology
Very three-dimensional (True3D Volumetric Display Technique) is a kind of stereo display technique, shown each three-dimensional picture point (voxel) of image has real character of surface and physical depth, the observer is without any need for utility appliance, just can observe shown object from multiple directions, present stereoeffect.
Light field is to describe object at a function of a certain regional characteristics of luminescence, in general, and light field function G (x, y, z, α, β, t), it is sextuple function, wherein (x, y, z) the luminous point three-dimensional position is described, (α, β) describes light emission direction, and t is the time.If consider the various characteristics (such as polarity, phase place etc.) of light, the light field function also can be more complicated.From the light field theory, the target of real three-dimensional display system is exactly reconstruct as far as possible truly and reproduce the light field that real-world object generates, thereby the observer is obtained and the three-dimensional perception of seeing that real-world object is similar.
With reference to figure 1, the light field function that generates due to real-world object is the continuous function of space and angle, if simulate with a plurality of visual fields (multiview), needs the visual field of unlimited number, and Project Realization can't be carried out in the visual field of unlimited.The principle of work of light field three-dimensional display system is to come the light field of approximate continuity distribution with limited visual field (as visual field a-l).Because human eye is limited to the resolution of space and angle, from the angle of perception and display effect, need not the light field function of reconstruct continuous distribution.To the light field function of continuous distribution respectively along the space, angle and time shaft carry out discrete sampling, comes the simulated light field function with the visual field of limited number, is the starting point of light field dimension display technologies.
Fig. 2 a and Fig. 2 b are the schematic diagram that a plurality of projector of available technology adopting produce the stereo display effect.
With reference to figure 2a, Fig. 2 a a kind ofly adopts a plurality of projector to carry out the system schematic that orthogonal projection generates the 3-D display effect, corresponding each visual field of each projector 1a generates corresponding image and projects on cylindrical lens array 2a, optical characteristics according to cylindrical mirror, in the horizontal direction, light is focused onto on specular scattering screen (being the flat pannel display screen) 3a, and then the direction to the projector 1a of correspondence reflects back.In fact light sees through cylindrical mirror twice, and on specular scattering screen 3a, same cylindrical mirror reflects back light former road cylindrical mirror for the second time with light focusing for the first time.Like this, the observer just can see image with its corresponding projector projects in position in different horizontal field of view, obtains the visual effect of 3-D display, reaches the purpose of true 3-D display.
With reference to figure 2b, substantially similar to the system principle in Fig. 2 a, three-dimensional display system in Fig. 2 b adopts bicylindrical lens array 2b to be arranged on the both sides of specular scattering screen 3b, adopt a plurality of projector 1b corresponding a plurality of visual fields corresponding image of generation and be incident upon on the cylindrical lens array 2b of a side, light beam is focused onto on specular scattering screen (being the flat pannel display screen) 3b, then pass through the diffusion of the cylindrical lens array 2b of opposite side, spectators can observe image from the opposite of projector 1b, have realized back projection.
Above-mentioned three-dimensional display system can only produce the parallax of horizontal direction.
with reference to figure 3, prior art also proposes a kind of three-dimensional display system that can produce horizontal direction and vertical direction parallax, , comprise two-dimensional projection's instrument array 4 that many projector 4a form, and the display screen 5 that is rearranged by the micro-spherical surface lens 5a that gathers, the image beam that two-dimensional projection's instrument array 4 sends projects on display screen 5, each micro-spherical surface lens 5a of display screen 5 shows a pixel in image, optical characteristics due to the micro-spherical surface lens, make each projector 4a project light beam on some micro-spherical surface mirror 5a, capital outgoing from the specific direction, the direction of each projector 4a projecting beam is not identical, the observer can see true 3-D display image from display screen 5, and the motion parallax that horizontal direction and vertical direction are arranged.
Mainly there are two problems in above-mentioned three-dimensional display system: the first, and cost is higher, because need to adopt a plurality of projector, no matter adopts orthogonal projection or back projection, perhaps two-dimensional projection's instrument array, price is all more expensive; The second, calibration difficulties, because such display system requires the image of each projector accurately to calibrate, difficulty is larger.
The utility model content
A fundamental purpose of the present utility model is to provide that a kind of cost is lower, calibration difficulty low true three-dimensional image display systems.
For achieving the above object, the utility model provides a kind of true three-dimensional image display systems, comprising:
Light source is used for generating illuminating bundle;
The two dimension acousto-optic modulator is used for making illuminating bundle to produce the deflection of two different directions;
Display screen;
Imaging device has a plurality of imaging regions corresponding to a plurality of visual fields, and a plurality of imaging regions of imaging device are used for receiving corresponding image beam and from different angles, the image beam that receives are imaged onto display screen;
The digital light treating apparatus is used for receiving the illuminating bundle after two-dimentional acousto-optic modulator deflection and described illuminating bundle being modulated the synthetic image light beam, described image beam is reflexed to the imaging region of imaging device.
the true three-dimensional image display systems that the utility model provides, generate illuminating bundle by light source and produce the deflection of two different directions through two-dimentional acousto-optic modulator, afterwards through digital light treating apparatus modulation synthetic image light beam, and projected image onto on display screen by imaging device, because the virtual optics center of the light that projects display screen is all different, therefore can generate and be similar to many visual fields 3-D view demonstration that a plurality of projecting apparatus systems generate, and the motion parallax with two different directions, only need single source can realize 3-D display, calibration is convenient, simple in structure, cost is low.
Description of drawings
Fig. 1 comes the schematic diagram of the light field of approximate continuity distribution with limited visual field in prior art.
Fig. 2 a is the structural representation that a plurality of projector of available technology adopting carry out the three-dimensional display system of orthogonal projection.
Fig. 2 b is the structural representation that a plurality of projector of available technology adopting carry out the three-dimensional display system of back projection.
Fig. 3 is the structural representation that available technology adopting two-dimensional projection instrument array carries out the three-dimensional display system of projection.
The structural representation of true three-dimensional image display systems the first embodiment that Fig. 4 provides for the utility model.
The structure principle chart of digital processing unit in the true three-dimensional image display systems that Fig. 5 provides for the utility model.
The structural representation of true three-dimensional image display systems the second embodiment that Fig. 6 provides for the utility model.
The structural representation of true the third embodiment of three-dimensional image display systems that Fig. 7 provides for the utility model.
The structural representation of the 4th kind of embodiment of true three-dimensional image display systems that Fig. 8 provides for the utility model.
The structural representation of the 5th kind of embodiment of true three-dimensional image display systems that Fig. 9 provides for the utility model.
The structural representation of the 6th kind of embodiment of true three-dimensional image display systems that Figure 10 provides for the utility model.
The process flow diagram of true three-dimensional image display method the first embodiment that Figure 11 provides for the utility model.
The process flow diagram of true three-dimensional image display method the second embodiment that Figure 12 provides for the utility model.
The process flow diagram of true the third embodiment of three-dimensional image display method that Figure 13 provides for the utility model.
Embodiment
Embodiment of the present utility model is described with reference to the accompanying drawings.The element of describing in an accompanying drawing of the present utility model or a kind of embodiment and feature can combine with element and the feature shown in one or more other accompanying drawings or embodiment.Should be noted that in order to know purpose, omitted, expression and description known to persons of ordinary skill in the art parts and processing irrelevant with the utility model in accompanying drawing and explanation.
The utility model provides a kind of true three-dimensional image display systems, comprising:
Light source is used for generating illuminating bundle;
The two dimension acousto-optic modulator is used for making illuminating bundle to produce the deflection of two different directions;
Display screen;
Imaging device has a plurality of imaging regions corresponding to described a plurality of visual fields, and a plurality of imaging regions of this imaging device are used for receiving corresponding image beam and from different angles, the image beam that receives are imaged onto described display screen;
The digital light treating apparatus, the illuminating bundle and the illumination beam that are used for receiving after two-dimentional acousto-optic modulator deflection are modulated the synthetic image light beam, image beam are reflexed to the imaging region of imaging device.
the true three-dimensional image display systems that the utility model provides, generate illuminating bundle by light source and produce the deflection of two different directions through two-dimentional acousto-optic modulator, afterwards through digital light treating apparatus modulation synthetic image light beam, and projected image onto on display screen by imaging device, because the virtual optics center of the light that projects display screen is all different, therefore can generate and be similar to many visual fields 3-D view demonstration that a plurality of projecting apparatus systems generate, and the motion parallax with two different directions, only need single source can realize 3-D display, calibration is convenient, simple in structure, cost is low.
Alternatively, light source is LASER Light Source.
Alternatively, also comprise light beam adjustment element, the illuminating bundle that light source generates produces the deflection of two different directions through two-dimentional acousto-optic modulator, be subjected to the illuminating bundle of deflection to adjust element adjustment by light beam, and the illuminating bundle after adjusting projects the digital light treating apparatus.
Alternatively, true three-dimensional image display systems of the present utility model also comprises the crevice projection angle adjusting gear, be used for the amount of deflection of image beam on two different directions that digital light processor reflects adjusted respectively, so that image beam projects imaging region corresponding to imaging device.
Alternatively, imaging device comprises a plurality of catoptrons, and the reflecting surface of plane mirror forms a plurality of imaging regions of imaging device accordingly, and the image beam that a plurality of imaging regions of imaging device receive from different perspectives reflexes on display screen and shows.
Alternatively, imaging device is the projection lens array, comprise projection lens or lens combination, projection lens or lens combination are a plurality of imaging regions of imaging device, and projection lens or lens combination are used for that the image beam that receives is projected to described display screen and show.
Alternatively, also comprise the segmentation projection lens array that is arranged between display screen and imaging device, be used for image beam that the imaging region with the correspondence of imaging device receives and project on display screen and show.
The embodiment 1 of true three-dimensional image display systems
With reference to figure 4, in embodiment 1, the embodiment 1 of true three-dimensional image display systems of the present utility model comprises light source 101, imaging device 102, digital light treating apparatus 103, display screen 104 and two-dimentional acousto-optic modulator 105.
The deflection that two dimension acousto-optic modulator 105 can illumination beam produces two different directions, for example horizontal direction and vertical direction, two dimension acousto-optic modulator 105 is combined by two one dimension acousto-optic modulators, and the yawing moment of the acousto-optic modulator of two one dimensions becomes 90 degree quadratures.
As shown in Figure 5, digital light treating apparatus 103 comprises the array that a plurality of micromirror 103a form, micromirror is accurate, miniature catoptron, a pixel in each micromirror controlling projection image, these micromirror can change angle rapidly under the control of digital drive signals, in case receive corresponding signal, micromirror will tilt ± 12 degree, thereby the reflection direction of incident light is changed, the micromirror that is in projection state is regarded as " ON " (opening), and with digital drive signals inclination-12 degree; If micromirror 103a is in non-projection state, be illustrated as " OFF " (pass), and+12 degree that tilt; Suppose that incident light is 24 degree, if micromirror is in projection state, namely micromirror is in-12 degree, and incident light is reflected to the direction of 0 degree, project image onto on display screen 104; If micromirror is in non-projection state, namely micromirror is in+12 degree, and incident light is reflected to 48 degree directions, is absorbed by light absorber, and the light that namely reflection needs by micromirror absorbs unwanted photogenerated image beam simultaneously.
Thereby under "on" position, the deflection angle of micromirror has projection state and non-projection state, and micromirror can reach per second tens thousand of times at the switching frequency of this two states under the control of digital drive signals.
Alternatively, display screen 104 can adopt, for example cylindrical lens array, block grating, or holographic material shows true 3-D view.
During work, light source 101 generates illuminating bundle, two dimension acousto-optic modulator 105 receives the illuminating bundle of light source generation and makes illuminating bundle produce the deflection of two different directions, for example horizontal direction and vertical direction, the illuminating bundle after deflecting projects on the micromirror of digital light treating apparatus 103 with different incident angles.
A plurality of micromirror are used for illumination beam and modulate the synthetic image light beam, and deflect with predeterminated frequency under the control of digital signal, described image beam is reflexed to the imaging region of imaging device.
illuminating bundle and illumination beam that a plurality of micromirror receive after two-dimentional acousto-optic modulator 105 deflections are modulated the synthetic image light beam, micromirror deflects and will reflect the image beam of different angles and project the imaging region of imaging device 102 with predeterminated frequency under the control of digital signal, be on catoptron 102a, continue image beam is reflexed on display screen 104 to show by catoptron 102a, the position that arranges due to each catoptron 102a is corresponding with a required visual field, and each plane mirror reflexes to display screen 104 from different angles with the image beam that receives and shows, the image beam that is to say each mirror reflects has different optical centres, therefore can generate and be similar to many visual fields 3-D view demonstration that a plurality of projecting apparatus systems generate, the observer that be in different field positions this moment just can observe from different angles the true 3-dimensional image of same object, and the motion parallax with horizontal direction and vertical direction.
Adopt two-dimentional acousto-optic modulator 105 to make illuminating bundle produce the deflection of two different directions, this smooth deflection way is not used moving component, compare the mode that adopts mechanical rotating mirror to realize beam deflection, deflection angle not necessarily need to carry out according to the order of the increasing or decreasing of angle, at random specified order.
As shown in Figure 4, a kind of possibility as the present embodiment, also be provided with light beam between two dimension acousto-optic modulator 105 and digital light treating apparatus 103 and adjust element 106, the deflection that the illuminating bundle that light source 101 generates produces horizontal direction and vertical direction through two-dimentional acousto-optic modulator 105, the illuminating bundle that is subjected to deflection is adjusted element 106 through light beam and is adjusted, and the illuminating bundle after adjusting and project digital light treating apparatus 103.
as shown in Figure 4, a kind of possibility as the present embodiment, true three-dimensional image display systems of the present utility model also can comprise crevice projection angle adjusting gear 107, the amount of deflection of image beam on two different directions that digital light processor 103 reflects adjusted respectively, and image beam is adjusted so that image beam projects the imaging region of imaging device 102 correspondences to the crevice projection angle of imaging device 102, restriction due to the reflection angle scope of 103 pairs of image beams of digital light treating apparatus, may be difficult to obtain larger field range, therefore, by the crevice projection angle adjusting gear is set, can amplify the angle of reflection angle, obtain larger field range.
By the crevice projection angle adjusting gear is set, can makes and control cost, improving display brightness, reducing the field range that on the basis of calibrating difficulty, acquisition needs.
Light beam is adjusted element 106 can learn element for multiple light, various lens for example, and according to the needs of the crevice projection angle of adjusting, crevice projection angle adjusting gear 107 also can be various optical elements, for example concavees lens.
The embodiment 2 of true three-dimensional image display systems
With reference to figure 6, in embodiment 2, the embodiment 2 of true three-dimensional image display systems of the present utility model comprises light source 201, imaging device 202, digital light treating apparatus 203, display screen 204 and two-dimentional acousto-optic modulator 205, also can comprise light beam adjustment element 206 and crevice projection angle adjusting gear 207, corresponding component and the structural relation thereof of each parts in the embodiment 2 of the true three-dimensional image display systems of the utility model and structural relation thereof and embodiment 1 are basic identical, and difference only is:
In embodiment 2, segmentation projection lens array 208 between display screen 204 and imaging device 202, being used for image beam that the imaging region with the correspondence of imaging device 202 receives projects on display screen and shows, segmentation projection lens array 208 comprises a plurality of projection lens 208a corresponding to a plurality of imaging regions of imaging device 202, the end to end one-tenth of these a plurality of projection lens 208a is circular-arc, and each projection lens is used for image beam that the imaging region with the correspondence of imaging device receives and projects on display screen and show.
According to time sharing principle, by imaging device 202 and segmentation projection lens array to display screen 204 projects images light beams, because each imaging region has different optical centres to the image beam that segmentation projection lens array 208 throws, therefore show successively again the image beam of corresponding different visual fields on display screen, can generate and be similar to the multi-angle projection effect that the multi-projector system generates.
Compare the large scale projection lens is set between imaging device and display screen, adopt segmentation projection lens array can reduce costs and system dimension.
The embodiment 3 of true three-dimensional image display systems
With reference to figure 7, in embodiment 3, the embodiment 3 of true three-dimensional image display systems of the present utility model comprises light source 301, imaging device 302, digital light treating apparatus 303, display screen 304 and two-dimentional acousto-optic modulator 305, also can comprise light beam adjustment element 306 and crevice projection angle adjusting gear 307, corresponding component and the structural relation thereof of each parts in the embodiment 3 of the true three-dimensional image display systems of the utility model and structural relation thereof and embodiment 1 and 2 are basic identical, and difference only is:
in embodiment 3, imaging device 302 is the projection lens array, comprise projection lens or lens combination, projection lens can be single camera lens, lens combination can be the array in conjunction with composition of multiple or a plurality of lens, projection lens or lens combination are a plurality of imaging regions of imaging device 302, projection lens or lens combination are transmitted through display screen 304 with the image beam that receives from different perspectives and show, because the image beam that is transmitted through display screen 304 through projection lens or lens combination has different optical centres, therefore can generate the multi-angle projection effect that is similar to the multi-projector system, at this moment, as shown in Figure 7, the opposite side that display screen 304 is arranged on imaging device 302 (namely, one side of non-incident beam).
The embodiment 4 of true three-dimensional image display systems
With reference to figure 8, in embodiment 4, the embodiment 4 of true three-dimensional image display systems of the present utility model comprises light source 401, imaging device 402, digital light treating apparatus 403, display screen 404 and two-dimentional acousto-optic modulator 405, also can comprise light beam adjustment element 406 and crevice projection angle adjusting gear 407, corresponding component and the structural relation thereof of each parts in the embodiment 3 of the true three-dimensional image display systems of the utility model and structural relation thereof and embodiment 1-3 are basic identical, and difference only is:
It is one group of optical lens that crevice projection angle is adjusted assembly 407, the image beam corresponding to single visual field through 403 reflections of digital light treating apparatus, all to an optical lens should be arranged, process through the optical lens adjustment and throw picture to imaging device 402, adopt optical lens to adjust folded light beam, can obtain higher picture quality.
True three-dimensional image display systems embodiment 5
With reference to figure 9, in embodiment 5, the embodiment 5 of true three-dimensional image display systems of the present utility model comprises red laser light source 501, blue laser light source 502 and green laser light source 503, imaging device 504, digital light treating apparatus 505, display screen 506, light beam are adjusted element 507, crevice projection angle adjusting gear 508, comprise in addition beam splitter assembly, wherein the structural relation of digital light treating apparatus 505, imaging device 504, display screen 506, light beam adjustment element 507 and crevice projection angle adjusting gear 508 and embodiment 1-4's is basic identical, and difference is:
light source in embodiment 5 comprises red laser light source 501, blue laser light source 502 and green laser light source 503, red laser light source 501, also be respectively equipped with two-dimentional red acousto-optic modulator 510 between blue laser light source 502 and green laser light source 503 and beam splitter assembly, the blue acousto-optic modulator 511 of two dimension and two-dimentional green acousto-optic modulator 512, the red light that red laser light source 501 sends, the green light that the blue light that blue laser light source 502 is sent and green laser light source 503 send is passed through respectively two-dimentional red acousto-optic modulator 510, the blue acousto-optic modulator 511 of two dimension and two-dimentional green acousto-optic modulator 512 produce two different directions, the for example deflection of horizontal direction and vertical direction, again through the synthetic one group of combined light of beam splitter assembly, wherein beam splitter assembly comprises the first optical splitter 509a and the second optical splitter 509b, the corresponding blue laser light source 502 of difference and green laser light source 503, red light, blue light and green light are through the first optical splitter 509a and the synthetic one group of combined light of the second optical splitter 509b, adjust element 507 through light beam, generation has three look illumination light of different incidence angles, be projected to digital light treating apparatus 505.
The embodiment 5 of true three-dimensional image display systems of the present utility model, realized the demonstration of many visual fields full color, colour projection can complete for timesharing, by controlling the switch of each LASER Light Source, make in each particular moment, only have a LASER Light Source job, the sequential of color switch can be any, can realize that the true three-dimensional color image with horizontal direction and vertical direction operation parallax shows.
True three-dimensional image display systems embodiment 6
With reference to Figure 10, wherein red laser light source, blue laser light source and green laser light source, the red acousto-optic modulator of two dimension, two-dimentional blue acousto-optic modulator, two-dimentional green acousto-optic modulator, imaging device, digital light treating apparatus, display screen, the structural relation of light beam adjustment assembly and crevice projection angle adjusting gear (not shown) and embodiment 5 is basic identical, and difference is:
Red light, blue light and green light are passed through respectively the modulation of each micromirror, form red display light beam 601, blue display beams 602 and green display beams 603, display beams is through the optical splitter 604 of an X-type, can be with synthetic one tunnel coaxial beam of the light path of red display light beam 601, blue display beams 602 and green display beams 603, coaxial beam after synthetic projects to imaging device 605, can produce many visual fields RGB full color three-dimensional picture with the projecting method that is similar to embodiment 1-5 and show.
The embodiment 1 of true three-dimensional image display method
With reference to Figure 11, the utility model also provides a kind of true three-dimensional image display method, utilizes above-mentioned true three-dimensional image display systems to carry out the demonstration of true 3-D view, and embodiment 1 comprises the following steps:
Beam deflection step S101: the illuminating bundle that light source sends produces the deflection of two different directions through two-dimentional acousto-optic modulator;
Beam treatment step S102: illuminating bundle and illumination beam that the digital light treating apparatus receives after two-dimentional acousto-optic modulator deflection are modulated the synthetic image light beam, image beam are reflexed to the imaging region of imaging device;
Image-forming step S103: a plurality of imaging regions of imaging device are imaged onto the image beam that receives on display screen from different perspectives and show.
In the present embodiment, light source is preferably LASER Light Source.
Adopt two-dimentional acousto-optic modulator to make illuminating bundle produce the deflection of two different directions in beam deflection step S101, can produce the motion parallax of two different directions, this smooth deflection way is not used moving component, compare the mode that adopts mechanical rotating mirror to realize beam deflection, deflection angle not necessarily need to carry out according to the order of the increasing or decreasing of angle, at random specified order.
In beam treatment step S102, the digital light treating apparatus comprises the array that a plurality of micromirror form, micromirror is accurate, miniature catoptron, a pixel in each micromirror controlling projection image, these micromirror can change angle rapidly under the control of digital drive signals, by the modulation of digital light treating apparatus, the synthetic image light beam, the deflection by micromirror reflexes to image beam the imaging region of imaging device.
In image-forming step S103, can image beam be reflexed to display screen by a plurality of catoptrons corresponding to a plurality of visual fields, can also be transmitted through display screen by the plane projection lens array, specifically please refer to the description of true three-dimensional image display systems embodiment 1-6.
the true three-dimensional image display method that the present embodiment provides, generate illuminating bundle by light source and produce the deflection of two different directions through two-dimentional acousto-optic modulator, modulate the synthetic image light beam and reflex to imaging device through the digital light treating apparatus afterwards, and projected image onto on display screen by imaging device, because the virtual optics center of the light that projects display screen is all different, therefore can generate and be similar to many visual fields 3-D view demonstration that a plurality of projecting apparatus systems generate, and the motion parallax with two different directions, only need single source can realize 3-D display, calibration is convenient, simple in structure, cost is low.
The embodiment 2 of true three-dimensional image display method
With reference to Figure 12, the embodiment 2 of the true three-dimensional image display method that the utility model provides is substantially the same manner as Example 1, in embodiment 2, true three-dimensional image display method of the present utility model comprises beam deflection step S201, beam treatment step S203, image-forming step S204 are substantially the same manner as Example 1, be with the difference of embodiment 1, also comprise between beam deflection step S201 and beam treatment step S203:
Light beam set-up procedure S202: two-dimentional acousto-optic modulator produces the illuminating bundle of deflection and through light beam adjustment element, amount of deflection is adjusted respectively, and the illuminating bundle after adjusting projects the digital light treating apparatus.
But the amount of deflection of above-mentioned steps illumination beam amplifies.
The embodiment 3 of true three-dimensional image display method
With reference to Figure 13, the embodiment 3 of true three-dimensional image display method of the present utility model is substantially the same manner as Example 2, in embodiment 3, the true three-dimensional image display method of the utility model comprises figure beam deflection step S301, light beam set-up procedure S302, beam treatment step S303, image-forming step S305, substantially the same manner as Example 2, difference is, also comprises between beam treatment step S303 and image-forming step S305:
Crevice projection angle set-up procedure S304: the crevice projection angle adjusting gear is adjusted the amount of deflection of image beam on two different directions that the digital light treating apparatus reflects respectively, and crevice projection angle is adjusted, the image beam after adjusting is projected imaging region corresponding to imaging device.
By crevice projection angle set-up procedure S304, the angle that can amplify reflection angle obtains larger field range.
Current binocular solid optometric technology, parallel shading light gate technique, cylindrical mirror technology and integrated display technique all exist various defectives, and such as display size is little, visual field quantity is few, resolution is low, brightness is low, sharpness is not enough etc.Although and the light field real three-dimensional display system of multi-projector has the potential quality that obtains large visual field, but there is between a plurality of projector calibration difficulties and the inherent shortcoming such as expensive, corresponding with it, the real three-dimensional display system that the utility model proposes and true 3 D displaying method have advantages of that one or more are unique:
1, simple in structure, can only use for example high speed projector of separate unit projection arrangement;
2, high definition resolution, the image of each visual field is high-definition image;
3, low cost, only with separate unit projection arrangement and cheap optical module, its cost is significantly less than multi-projector;
4, the visual field number can reach hundreds ofly, has effectively improved the 3-D display quality and does not increase system cost;
5, high brightness, the design realizes the effect of multi-projector projection and does not lose brightness;
6, calibration is convenient, and a major defect of traditional multi-projector system is to be difficult to calibration, and present design has overcome this defective;
7, display screen size can be adjusted flexibly, is convenient to no application demand;
8, true three-dimensional image display systems of the present utility model and display packing can be used orthogonal projection or back projection mode and show and all can;
9, can realize that authentic color three dimension shows, adopt the RGB three-color light source, throw respectively Red Green Blue (or other can generate the color scheme of color true to nature), the display after synthesizing just can produce the true 3-D display of authentic colour;
10, the clear superiority that has simple and fast at the aspects such as extendability in proportion of the high-speed transfer of the Real-time Collection of the data representation pattern of three-dimensional display space, color three dimension data and Data Generation Technology, 3-D display data and display technique 3-D view display space and display resolution.
11, can produce the motion parallax of horizontal direction and vertical direction, the observer can watch true 3-D display from any one angle.
Although described the utility model and advantage thereof in detail, be to be understood that in the situation that do not exceed the spirit and scope of the present utility model that limited by appended claim and can carry out various changes, alternative and conversion.And the application's scope is not limited only to the specific embodiment of the described process of instructions, equipment, means, method and step.The one of ordinary skilled in the art will readily appreciate that from disclosure of the present utility model, can use execution and the essentially identical function of corresponding embodiment described herein or acquisition result essentially identical with it, existing and want exploited process, equipment, means, method or step in the future according to the utility model.Therefore, appended claim is intended to comprise such process, equipment, means, method or step in their scope.
Claims (8)
1. a true three-dimensional image display systems, is characterized in that, comprising:
Light source is used for generating illuminating bundle;
The two dimension acousto-optic modulator is used for making described illuminating bundle to produce the deflection of two different directions;
Display screen;
Imaging device has a plurality of imaging regions corresponding to a plurality of visual fields, and a plurality of imaging regions of described imaging device are used for receiving corresponding image beam and from different angles, the image beam that receives are imaged onto described display screen;
The digital light treating apparatus is used for receiving the illuminating bundle after two-dimentional acousto-optic modulator deflection and described illuminating bundle being modulated the synthetic image light beam, described image beam is reflexed to the imaging region of imaging device.
2. true three-dimensional image display systems according to claim 1, it is characterized in that, also comprise light beam adjustment element, be used for and adjust respectively through the amount of deflection of the illuminating bundle after two-dimentional acousto-optic modulator deflection on two different directions, and the illuminating bundle after adjusting projects the digital light treating apparatus.
3. true three-dimensional image display systems according to claim 1, it is characterized in that, the digital light treating apparatus comprises the array that a plurality of micromirror form, described a plurality of micromirror is used for illumination beam and modulates the synthetic image light beam, and deflect with predeterminated frequency under the control of digital signal, described image beam is reflexed to the imaging region of imaging device.
4. true three-dimensional image display systems according to claim 1, it is characterized in that, also comprise the crevice projection angle adjusting gear, be used for the amount of deflection of image beam on two different directions that described digital light treating apparatus reflects adjusted respectively, and image beam is adjusted so that described image beam projects imaging region corresponding to described imaging device to the crevice projection angle of imaging device.
5. true three-dimensional image display systems according to claim 1, it is characterized in that, described imaging device comprises a plurality of catoptrons, the reflecting surface of described catoptron forms a plurality of imaging regions of described imaging device accordingly, and the image beam that a plurality of imaging regions of described imaging device receive from different perspectives reflexes on described display screen and shows.
6. true three-dimensional image display systems according to claim 1, it is characterized in that, described imaging device is the projection lens array, comprise projection lens or lens combination, described projection lens or lens combination are a plurality of imaging regions of described imaging device, and described projection lens or lens combination are used for that the image beam that receives is projected to described display screen and show.
7. true three-dimensional image display systems according to claim 1, it is characterized in that, also comprise the segmentation projection lens array that is arranged between display screen and imaging device, be used for image beam that the imaging region with the correspondence of imaging device receives and project on display screen and show.
8. true three-dimensional image display systems according to claim 1, it is characterized in that, described light source comprises: red laser light source, blue laser light source and green laser light source, described real three-dimensional display system also comprises beam splitter assembly, described red laser light source, also be respectively equipped with two-dimentional red acousto-optic modulator between blue laser light source and green laser light source and described beam splitter assembly, the blue acousto-optic modulator of two dimension and two-dimentional green acousto-optic modulator, the red light that described red laser light source sends, the green light that the blue light that blue laser light source is sent and green laser light source send is passed through respectively the red acousto-optic modulator of described two dimension, the deflection that the blue acousto-optic modulator of two dimension and two-dimentional green acousto-optic modulator produce two different directions, be projected to the digital light treating apparatus through the synthetic combined light of described beam splitter assembly again.
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| CN201220514977.1U CN202975583U (en) | 2012-10-09 | 2012-10-09 | True three-dimension image display system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103713462A (en) * | 2012-10-09 | 2014-04-09 | 耿征 | True three-dimensional image display system and display method |
| CN109601013A (en) * | 2016-07-15 | 2019-04-09 | 光场实验室公司 | The energy relay device of propagation for two dimension, light field and holographic energy and lateral Anderson localization |
| CN110703560A (en) * | 2019-11-22 | 2020-01-17 | 丁阳 | Direct projection type one-screen multi-eye independent display technology |
| CN112312099A (en) * | 2019-07-29 | 2021-02-02 | 深圳光峰科技股份有限公司 | Projection display apparatus |
| CN113766202A (en) * | 2013-11-03 | 2021-12-07 | 杜比实验室特许公司 | System and method for local dimming in multi-modulation displays |
-
2012
- 2012-10-09 CN CN201220514977.1U patent/CN202975583U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103713462A (en) * | 2012-10-09 | 2014-04-09 | 耿征 | True three-dimensional image display system and display method |
| CN113766202A (en) * | 2013-11-03 | 2021-12-07 | 杜比实验室特许公司 | System and method for local dimming in multi-modulation displays |
| CN109601013A (en) * | 2016-07-15 | 2019-04-09 | 光场实验室公司 | The energy relay device of propagation for two dimension, light field and holographic energy and lateral Anderson localization |
| CN112312099A (en) * | 2019-07-29 | 2021-02-02 | 深圳光峰科技股份有限公司 | Projection display apparatus |
| CN110703560A (en) * | 2019-11-22 | 2020-01-17 | 丁阳 | Direct projection type one-screen multi-eye independent display technology |
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