CN106990667A - Stereoprojection imaging device and system - Google Patents
Stereoprojection imaging device and system Download PDFInfo
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- CN106990667A CN106990667A CN201710377121.1A CN201710377121A CN106990667A CN 106990667 A CN106990667 A CN 106990667A CN 201710377121 A CN201710377121 A CN 201710377121A CN 106990667 A CN106990667 A CN 106990667A
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- polarization
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- light path
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B35/00—Stereoscopic photography
- G03B35/18—Stereoscopic photography by simultaneous viewing
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/20—Lamp housings
- G03B21/2073—Polarisers in the lamp house
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/28—Reflectors in projection beam
Abstract
Light path recovery reduction optical energy loss can be carried out the invention discloses one kind and improves projection imaging quality, and specular removal stereoprojection imaging device and system suitable for low projection than theatre environment, stereoprojection imaging device includes polarizing beam splitter, reflecting element, beam size adjusts component, linear polarizer, light polarization modulator, polarization form converter, the polarizing beam splitter is that polarization splitting prism is combined or polarization spectro plate, the reflecting element uses high reflection polarization element, the high reflection polarization element is by protective layer, reflecting layer, absorbed layer, glass substrate is constituted, the polarization form converter possesses wavelength bandwidth adjustment function.The stereoprojection imaging device that the present invention is provided can effectively reduce the reflected beams and the optical path difference of transmitted light beam, overall structure is more optimized, so that the volume of whole device is substantially reduced.
Description
Technical field
The present invention relates to stereo projection technology field, particularly a kind of stereoprojection imaging device and system.
Background technology
Binocular projector with frame sequential successively change broadcasting two not homotactic images, current main flow be left-eye image and
Eye image a, sequence is seen that another sequence is seen by right eye by left eye, and alternate presentation is exactly three-dimensional figure
Picture.Beholder generally wears anaglyph spectacles, and the figure prepared for it is can be only seen by every eye of anaglyph spectacles beholder
The subsequence of picture.It is used for the stereo imaging system of passive type anaglyph spectacles at present.The different sequences initially come out from projector
The image of row is unpolarized state light beam, and the polarizing beam splitter configured by stereo imaging system converts unpolarized state light beam
For polarizing beam.
However, there is larger optical energy loss or luminous energy scattering and aberration mostly in existing stereoprojection imaging device
The problems such as, project obtained picture quality not good.
The content of the invention
In order to solve the above problems, the present invention provides one kind and can carry out light path recovery reduction optical energy loss and improve projection
Image quality, and specular removal stereoprojection imaging device and system suitable for low projection than theatre environment.
To achieve the above object, the present invention provides following technical scheme：A kind of stereoprojection imaging device, including：
Polarizing beam splitter, the polarizing beam splitter is that polarization splitting prism is combined or polarization spectro plate, for by incident light
It is divided into a transmitted light beam and two the reflected beams, the polarizing beam splitter is provided with two reflection of polarization films, two reflection of polarization films
It is symmetrical along system neutral, 90 ° ± 15 ° of angle is constituted, the reflection exit facet of the prism is symmetrical along system neutral, constitutes angle
90°±15°；
Reflecting element, two are symmetrically distributed with along the center line of incident ray, for reflect polarizing beam splitter two
The reflected beams reflex to screen, and the reflecting element uses high reflection polarization element, the high reflection polarization element by protective layer,
Reflecting layer, absorbed layer, glass substrate are constituted, and can be effectively protected light path is not influenceed by veiling glare, by the unnecessary P of light path up and down
Polarization state light absorbs, and improves reflection efficiency, the light efficiency of whole system is improved with this；
Reflecting element adjusts structure, and locus and face deformation are carried out by mechanical regulation according to the demand of light beam projecting
Change, the regulation to the size and location of the reflected beams is completed, to realize the coincidence of light path；
Beam size adjusts component, and the size for adjusting transmitted light beam and two the reflected beams makes three light paths in screen
Overlapped on curtain, while the veiling glare in the scattering of regulation light beam and elimination light path, other optical elements of coupled system enter to light path
Row amendment, the beam size adjustment component is single lens or multiple lens combinations.
Linear polarizer, for filtering out the veiling glare in reflected light path, corrects the adjustment of light path；
Light polarization modulator, for modulating three road light beams, the light polarization modulator has two, and two light polarization modulators are in work
1/2 λ is differed under state, is switched and switched by the high-frequency of two light polarization modulators, light beam is realized two optical polarization states
Light beam separation, with correspondence passive type rotatory polarization glasses two eyeglasses different polarizing filters；
Polarization form converter, the polarization state for changing light beam makes three light beams possess identical optical polarization, institute
State polarization form converter and possess wavelength bandwidth adjustment function.
Further, the polarizing beam splitter both sides are respectively equipped with an AR antireflection film, and the AR antireflection films are plated in
Prismatic reflection exit facet, reduces light path reflection.
Further, the projection reflector space of the reflecting element is designed as the region with certain radius of curvature.
Further, the polarization form converter includes at least three layers optical film, with optical compensation function, improves aberration
And chromatic dispersion problem.
Further, the lens combination be arranged on before polarizing beam splitter and/or glazing route polarizer before and/or lower light
Before route polarizer and/or before middle light path light polarization modulator, lens or lens combination are adjusted according to the demand that movie theatre projects ratio
Quantity and lens combination plano-concave lens and planoconvex spotlight relative position.
A kind of stereoprojection imaging system, including binocular projector, metal curtain or the curtain for possessing three-dimensional imaging requirement
With above-mentioned stereoprojection imaging device, the binocular projector changes two not homotactic images of broadcasting with frame sequential successively,
The stereoprojection imaging device receives the frequency signal that two not homotactic images are played in binocular projector's switching, to carry out
Control to the first light polarization modulator and the second light polarization modulator, completion is separated into two differences to two not homotactic images
The light beam of optical polarization state, with the different polarizing filters of two eyeglasses of correspondence passive type rotatory polarization glasses.
Compared with prior art, beneficial effect of the present invention：
1st, reflecting element adjustment structure can adjust beam size, solve light beam and fail to be completely superposed the figure caused in screen
As the problem of degradation.
2nd, beam size adjustment component, as needed, the difference of placement location can adjust transmitted light beam and two reflections
The size of light beam, makes three light paths be overlapped on screen, while adjusting the scattering of light beam；The scattering of light beam is adjusted simultaneously and is disappeared
Except the veiling glare in light path, other optical elements of coupled system are modified to light path；Especially in movie theatre of the low projection than environment,
Preceding road light path places beam size adjustment component, is conducive to reduction system primary optics size.
3rd, for the different projector distance of movie theatre, the angle of divergence and transmitted light path and reflected light path of projection ray to screen
Distance be all different, the projection size so on screen is also different, and system is set to the view field of reflecting element
Certain radius of curvature is counted, to match rotation up and down and the face that 4-30 meters of drop shadow spread can be transferred through reflecting element
The mechanical regulations such as deformation reach the coincidence of three light paths.
4th, polarization converter has the function of optical compensation, can solve light beam crevice projection angle and become big, image dispersion is caused
The problem of poor quality images, and the problem of projected image aberration, solution is provided than movie theater for low projection.
Brief description of the drawings
Fig. 1 is a kind of stereoprojection imaging device schematic diagram that the present invention is provided.
Fig. 2 is a kind of another form for stereoprojection imaging device that the present invention is provided.
Fig. 3 is a kind of another form for stereoprojection imaging device that the present invention is provided.
Fig. 4 is the schematic diagram for the polarizing beam splitter that the present invention is provided.
Fig. 5 is another form for the polarizing beam splitter that the present invention is provided.
Fig. 6 is another form for the polarizing beam splitter that the present invention is provided.
Fig. 7 is the high reflection polarization element optical path analysis figure that this present invention is provided.
Fig. 8 is the light path schematic diagram that the reflecting element that the present invention is provided adjusts structure
Fig. 9 is the light path principle figure for the high reflection polarization element that the present invention is provided.
Figure 10 is the light path principle figure and optical structure chart for the high reflection polarization element that the present invention is provided.
Figure 11 is that the light path for the reflecting element that the present invention is provided overlaps schematic diagram.
Figure 12 is the optical compensation schematic diagram for the polarization converter that the present invention is provided.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
As shown in figure 1, the invention provides a kind of stereoprojection imaging device, including beam size adjustment component, i.e., it is saturating
Microscope group closes 102 and 103, and incident beam 137 incides lens combination, by the adjustment of this lens combination, can make the model of incidence
Enclose and diminish, especially solving scheme of the low projection than movie theater, this structure can be applicable lower projection ratio, and afterwards, light beam passes through
Polarizing beam splitter 104, is divided into a transmission incident beam 109 and two the reflected beams 108 and 133, after separation, transmitted light beam
109 be P state polarised lights, and two the reflected beams 108 and 133 are S state polarised lights, and both differ 1/2 λ；
The scope of projection is amplified by transmitted light beam 109 by planoconvex spotlight 132 and plano-concave lens 131, hereafter, projection
Light beam enter light polarization modulator 117 and 118, the first light polarization modulator 117 be in hold mode, polarization state light directly through
First light polarization modulator, now the second light polarization modulator 118 is in running order, it will the polarization state to light rotates 1/4 λ,
Or first light polarization modulator 117 it is in running order, it will the polarization state to the second optical polarization state light changes to -1/
4 λ, now the second light polarization modulator 118 is in hold mode, and light can be directly through the second light polarization modulator 118, two polarizations
Modulator operationally, possesses the function of polarization form converter, and two light polarization modulators differ 1/2 λ；Adjusted by two polarizations
The high-frequency switch switching of device processed, makes light beam realize the light beam separation of two optical polarization states, with correspondence passive type rotatory polarization
The different polarizing filters of two eyeglasses of glasses；
The reflected beams 108,133 incide reflecting element 107 and 134 respectively, and reflecting element 107,134 can pass through reflection
Element adjustment construction machine regulation and control, regulation beam size and the movement in each orientation up and down, so that light path is overlapped, the reflected beams
108 after reflecting element reflection, through lens combination 110 and 111, as needed, regulation plano-concave lens and planoconvex spotlight
Distance, the projection scope to light beam is adjusted, that is, adjusts the size of light beam, linear polarizer is set after lens combination
112, the veiling glare being mingled with filtering and elimination the reflected beams 108 in S state polarised lights, by the linear polarization after linear polarizer 112
Light, into follow-up light polarization modulator 113 and 114, makes light beam realize the light beam separation of two optical polarization states, with correspondence quilt
The different polarizing filters of two eyeglasses of dynamic formula rotatory polarization glasses, the light beam after light polarization modulator 113 and 114 enters
To polarization form converter 115 and 116, polarization form converter 115 and 116 is respectively equivalent to the function of quarter wave plate, is accumulated as 1/2
The function of wave plate；It is used for the optical polarization state for changing light beam, three light beams is possessed identical optical polarization state.
Multiple lens combinations are added in the stereoprojection imaging device of this kind of form, this structure can be applicable lower throwing
Ratio is penetrated, the applicable projection of majority stereoprojection imaging device at present is than minimum 1.0-1.2, the stereoprojection imaging dress of this structure
Projection can be applicable than the movie theater for 0.5-0.8 by putting.
Fig. 2 is a kind of another form for stereoprojection imaging device that the present invention is provided, the stereoprojection of this structure
Imaging device eliminates lens combination, simple to realize three light path coincidences, the He of reflecting element 107 by reflecting element 107 and 134
134 have carried out the design of radius of curvature in reflector space, to meet the demand of different projector distances.
A kind of another form for stereoprojection imaging device that Fig. 3 present invention is provided.The stereoprojection of such a form into
As device eliminate above and below light path polarization converter, add the polarization converter 301 and 302 of middle light path, after change,
Upper, middle and lower light path can equally realize the uniformity of the polarization state of three light paths of upper, middle and lower；Meanwhile, reflecting element 107 is using polarization
High counterelement, reduces influence of the veiling glare to light path up and down.
Fig. 4 is the structural representation for the polarizing beam splitter that the present invention is provided, and polarizing beam splitter combines for polarization splitting prism,
Including four prisms 402,403,408 and 411, this four part can normally be made using the identical or different material of refractive index
Material is H-K9L, and refractive index is nd=1.51680 ± 0.0005.α scope is 50 ° to 90 °, β scope for 90 ° extremely
180 °, 403 and 411 angle is consistent with α, symmetrical along system neutral, and whole light is adjusted by adjusting this three angles
The veiling glare on road and the elimination of reflected light；Prismatic reflection exit facet is coated with AR antireflection films, the generation for reducing reflected light, increase
Transmitance；Incident ray can avoid direct incident polarization optical splitter in this structure and produce chromatic dispersion problem.
Fig. 5 is another structural representation for the polarizing beam splitter that the present invention is provided, and the polarizing beam splitter of the structure is by six
Individual prism 502,503,504,509,513,514 is constituted, 503,504 and 513,514 along system centre symmetrically, using with other portions
Split-phase, using refraction of light path, is repaiied with refractive index and dispersive power or the material of different refractivity dispersive power to light path characteristic
Just；And suitable for fit lens combination, light path is adjusted.
Fig. 6 is another structural representation for the polarizing beam splitter that the present invention is provided, and the polarizing beam splitter of the structure is by four
Individual prism 602,603,607,610 is constituted, incident ray this structure can avoid direct incident polarization optical splitter and produce
Chromatic dispersion problem；50 ° to 90 ° of α scope, 603 and 610 angle is consistent with α, symmetrical along system neutral, by adjusting this
Three angles adjust the veiling glare of whole light path and the elimination of reflected light；AR antireflection films, plated film subtracts in prismatic reflection exit facet
The generation of few reflected light, increases transmitance.
The polarizing beam splitter that the present invention is provided can also be the combination of multiple polarization spectro plates.
Fig. 7 is the high reflection polarization element optical path analysis figure that the present invention is provided, in original state, incipient beam of light Tp=
100%/Ts=100%, after reflection of polarization film, transmitted light beam Tp1=96%/Ts1=0.1%, the reflected beams Rp1=
4%/Rs1=99.9%, the reflected beams pass through high reflection polarization element 702, and the efficiency of element is Rp3=5%/Rs3=99%,
Obtained Rp2=Rp1*Rp3=4%*5%=0.2%/Rs2=Rs1*Rs3=99.9%*99%=98.9%；Set by this
Meter can obtain system more specular removal., can be than common reflecting element using this high reflection polarization element as reflecting element
Light efficiency increase by 6%, and above and below being effectively improved the P state polarised lights of light path the interference to light path.
Fig. 8 show the light path schematic diagram for the reflecting element adjustment structure that the present invention is provided.Reflecting element 803, for inciting somebody to action
Two the reflected beams of polarizing beam splitter reflection reflex to screen；Reflecting element can carry out space according to the demand of light beam projecting
The rotating, move of position, push-and-pull, deformation, complete the regulation to the size and location of the reflected beams, to realize the coincidence of light path.
Incident beam 801 obtains light beam 805 after the reflection of reflecting element 803；After the contraction distortion of reflecting element 803, obtain
To 802, incident beam 801 is by after reflecting element 802, obtaining light beam 804；Clearly adjusted by this, can be to reflection
The projecting direction of light beam is adjusted；After by such adjustment three light paths of upper, middle and lower can overlap.This structure can
Combined with fit lens, expand the adjustable range of system, and make the regulation of system more careful, more precisely.
Fig. 9 show the light path principle figure for the high reflection polarization element that the present invention is provided, when light is entered with Brewster angle
When penetrating, in reflection light only have S-polarization state light, no P polarization state light, P polarization state light completely through.Brewster angle and incidence
The refractive index of the two kinds of materials in interface is relevant, such as Brewster angle when from air incidence to K9 glass is 56.5 °.It is high in design
During reflective polarizer element, to the reasonable design of assembly of thin films, it is ensured that meet brewster effect being tried one's best compared with broadband scope, S is allowed
Polarised light is tried one's best high reflection, and P polarization light is tried one's best high transmission.As shown in figure 9, under efficient state, incipient beam of light Tp=100%/
Ts=100%, after reflection, Rp=0/Rs=15.2%, after being reflected again after superrefraction, Rp1=0%/Rs1
=84.8%*15.2%*84.8%, and the light beam projected after superrefraction, Tp=100%/Ts=84.8%*84.8%,
Building for membrane system is carried out according to this design, reaches that almost P polarization state light is all passed through, while S-polarization state light high reflection.
Figure 10 is the light path principle figure and optical structure chart for the high reflection polarization element that the present invention is provided, high reflection polarizing element
Part is made up of protective layer 1001, reflecting layer 1002, absorbed layer 1003, glass substrate 1004；Can be effectively protected light path not by
The influence of veiling glare, by the unnecessary P polarization state light absorbs of light path up and down；The principle of reflecting layer as shown in Figure 9 carries out the design of membrane system
Build.
Figure 11 is that the light path for the reflecting element that the present invention is provided overlaps schematic diagram.There are divergent angle A, transmitted light path in projection ray
Distance with reflected light path to screen is different, and the projection size so on screen is also different, and respectively a and b work as screen
Change in location, a and b size also changes.Need the radius of curvature design and mechanical adjustment and lens by reflecting element
The regulation of combination, overlaps a and b.
Figure 12 is the principle schematic for the optical film that can carry out optical compensation that the present invention is provided, and wavelength is in 400nm-
700nm visible ray, the optical characteristics of the visible ray of different wave length is different, especially at visual angle than in the case of larger,
If, will aberration and chromatic dispersion problem without optical compensation；Pass through quarter wave plate in visible ray, what we wanted pursuit is line
Bar c state, but actually we obtain be lines a state, by after suitable optical compensation, we can be with
Obtain lines b state, so light influence on visible ray each wavelength has just obtained good constraint；Passing through next layer
1/4 slide optical compensation films, can carry out once similar reverse compensation again, by further close to the state of c lines, thus
It can solve and improve aberration and the problem of dispersion.This optical compensation films needs the optical film of the different angle different wave lengths of multilayer to enter
Row compensation synthesis, such as with three layers of optical film ,+108 ° of a 140nm (1/4 λ) ,+32 °, one of a 270nm (1/2 λ)
+ 5.5 ° of 270nm (1/2 λ), after this three layers of optical film synthesis, with quarter wave plate function, and the work(of optical compensation
Energy.
Obviously, those skilled in the art can carry out the spirit of various changes and modification without departing from the present invention to invention
And scope.So, if these modifications and variations of the present invention belong to the claims in the present invention and its equivalent technologies scope it
Interior, then the present invention is also intended to comprising including these changes and modification.
Claims (6)
1. a kind of stereoprojection imaging device, it is characterised in that including：
Polarizing beam splitter, the polarizing beam splitter is that polarization splitting prism is combined or polarization spectro plate, for incident light to be divided into
One transmitted light beam and two the reflected beams, the polarizing beam splitter is provided with two reflection of polarization films, two reflection of polarization films edge systems
Center line of uniting is symmetrical, constitutes 90 ° ± 15 ° of angle, and the reflection exit facet of the prism is symmetrical along system neutral, and 90 ° of angle of composition ±
15°；
Reflecting element, two are symmetrically distributed with along the center line of incident ray, for two reflections for reflecting polarizing beam splitter
Light beam reflexes to screen, and the reflecting element uses high reflection polarization element, and the high reflection polarization element is by protective layer, reflection
Layer, absorbed layer, glass substrate are constituted；
Reflecting element adjusts structure, and locus and face fractal transform are carried out by mechanical regulation according to the demand of light beam projecting, complete
The regulation of the size and location of paired the reflected beams, to realize the coincidence of light path；
Beam size adjusts component, and the size for adjusting transmitted light beam and two the reflected beams makes three light paths on screen
Overlap, while the veiling glare in the scattering of regulation light beam and elimination light path, other optical elements of coupled system are repaiied to light path
Just, the beam size adjustment component is single lens or multiple lens combinations；
Linear polarizer, for filtering out the veiling glare in reflected light path, corrects the adjustment of light path；
Light polarization modulator, for modulating three road light beams, the light polarization modulator has two, and two light polarization modulators are in working condition
1/2 λ of lower difference, is switched by the high-frequency of two light polarization modulators and switched, light beam is realized the light of two optical polarization states
Beam is separated, with the different polarizing filters of two eyeglasses of correspondence passive type rotatory polarization glasses；
Polarization form converter, the polarization state for changing light beam makes three light beams possess identical optical polarization, described inclined
Polarization state converter possesses wavelength bandwidth adjustment function.
2. stereoprojection imaging device according to claim 1, it is characterised in that the polarizing beam splitter both sides are set respectively
There is an AR antireflection film, the AR antireflection films are plated in prismatic reflection exit facet, reduce light path reflection.
3. stereoprojection imaging device according to claim 1, it is characterised in that the projection echo area of the reflecting element
Domain is designed as the region with certain radius of curvature.
4. stereoprojection imaging device according to claim 1, it is characterised in that the polarization form converter is at least by three
Layer optical film composition, with optical compensation function, improves aberration and chromatic dispersion problem.
5. stereoprojection imaging device according to claim 1, it is characterised in that the lens combination is arranged on polarization point
Before light device and/or before glazing route polarizer and/or before lower light path linear polarizer and/or before middle light path light polarization modulator, root
According to movie theatre project ratio demand adjustment lens or lens combination quantity and lens combination plano-concave lens and planoconvex spotlight it is relative
Position.
6. a kind of stereoprojection imaging system, including binocular projector, metal curtain or possess three-dimensional imaging requirement curtain and
Stereoprojection imaging device described in claim any one of 1-3, the binocular projector changes broadcasting two with frame sequential successively
Individual not homotactic image, the stereoprojection imaging device receives binocular projector's switching and plays two not homotactic images
Frequency signal, to carry out the control to the first light polarization modulator and the second light polarization modulator, complete not homotactic to two
Image is separated into the light beam of two different optical polarization states, with the different of two eyeglasses of correspondence passive type rotatory polarization glasses
Polarizing filter.
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| CN201710377121.1A CN106990667B (en) | 2017-05-25 | 2017-05-25 | Stereoscopic projection imaging device and system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107367895A (en) * | 2017-08-22 | 2017-11-21 | 深圳市乐视环球科技有限公司 | A kind of apparatus and method for automatically adjusting stereo projection apparatus position |
| CN108540721A (en) * | 2018-04-16 | 2018-09-14 | 福建师范大学 | A kind of the visual sensor device and its control method of automatic polarisation control |
| CN109960102A (en) * | 2017-12-14 | 2019-07-02 | 深圳光峰科技股份有限公司 | Projection screen |
| CN112213866A (en) * | 2019-07-10 | 2021-01-12 | 深圳市慧创立科技有限公司 | Three-light-path high-luminous-efficiency stereoscopic projection device |
| CN109188695B (en) * | 2018-09-29 | 2021-11-30 | 北京蚁视科技有限公司 | Thin type large-field-angle near-to-eye display device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080143965A1 (en) * | 2006-10-18 | 2008-06-19 | Real D | Combining P and S rays for bright stereoscopic projection |
| CN203025425U (en) * | 2012-12-29 | 2013-06-26 | 深圳市时代华影科技开发有限公司 | High-luminous-efficiency light modulating device and high-luminous-efficiency stereographic projection system |
| CN203405635U (en) * | 2013-09-05 | 2014-01-22 | 深圳市时代华影科技开发有限公司 | Stereographic projection device with low projection ratio and high lighting effect and stereographic projection system |
| CN104898366A (en) * | 2015-06-23 | 2015-09-09 | 深圳市时代华影科技股份有限公司 | High-light-effect 3D system based on liquid crystal lenses |
| US20150286127A1 (en) * | 2012-10-22 | 2015-10-08 | Nec Display Solutions, Ltd. | Projector |
| CN205787403U (en) * | 2016-05-18 | 2016-12-07 | 颜栋卿 | A kind of stereo projection apparatus improving light utilization efficiency |
-
2017
- 2017-05-25 CN CN201710377121.1A patent/CN106990667B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080143965A1 (en) * | 2006-10-18 | 2008-06-19 | Real D | Combining P and S rays for bright stereoscopic projection |
| US20150286127A1 (en) * | 2012-10-22 | 2015-10-08 | Nec Display Solutions, Ltd. | Projector |
| CN203025425U (en) * | 2012-12-29 | 2013-06-26 | 深圳市时代华影科技开发有限公司 | High-luminous-efficiency light modulating device and high-luminous-efficiency stereographic projection system |
| CN203405635U (en) * | 2013-09-05 | 2014-01-22 | 深圳市时代华影科技开发有限公司 | Stereographic projection device with low projection ratio and high lighting effect and stereographic projection system |
| CN104898366A (en) * | 2015-06-23 | 2015-09-09 | 深圳市时代华影科技股份有限公司 | High-light-effect 3D system based on liquid crystal lenses |
| CN205787403U (en) * | 2016-05-18 | 2016-12-07 | 颜栋卿 | A kind of stereo projection apparatus improving light utilization efficiency |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107367895A (en) * | 2017-08-22 | 2017-11-21 | 深圳市乐视环球科技有限公司 | A kind of apparatus and method for automatically adjusting stereo projection apparatus position |
| CN109960102A (en) * | 2017-12-14 | 2019-07-02 | 深圳光峰科技股份有限公司 | Projection screen |
| CN109960102B (en) * | 2017-12-14 | 2022-01-04 | 深圳光峰科技股份有限公司 | Projection screen |
| US11300868B2 (en) | 2017-12-14 | 2022-04-12 | Appotronics Corporation Limited | Projection screen |
| CN108540721A (en) * | 2018-04-16 | 2018-09-14 | 福建师范大学 | A kind of the visual sensor device and its control method of automatic polarisation control |
| CN108540721B (en) * | 2018-04-16 | 2020-04-10 | 福建师范大学 | Automatic polarization control visual sensor device and control method thereof |
| CN109188695B (en) * | 2018-09-29 | 2021-11-30 | 北京蚁视科技有限公司 | Thin type large-field-angle near-to-eye display device |
| CN112213866A (en) * | 2019-07-10 | 2021-01-12 | 深圳市慧创立科技有限公司 | Three-light-path high-luminous-efficiency stereoscopic projection device |
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| CN106990667B (en) | 2022-08-09 |
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