CN203732813U - Light recovery device and corresponding three-dimensional imaging system - Google Patents
Light recovery device and corresponding three-dimensional imaging system Download PDFInfo
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- CN203732813U CN203732813U CN201420057288.1U CN201420057288U CN203732813U CN 203732813 U CN203732813 U CN 203732813U CN 201420057288 U CN201420057288 U CN 201420057288U CN 203732813 U CN203732813 U CN 203732813U
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- 238000003384 imaging method Methods 0.000 title claims abstract description 14
- 238000011084 recovery Methods 0.000 title abstract description 5
- 230000003287 optical effect Effects 0.000 claims description 18
- 230000010287 polarization Effects 0.000 claims description 16
- 230000005540 biological transmission Effects 0.000 claims description 12
- 238000012545 processing Methods 0.000 claims description 11
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- 230000011218 segmentation Effects 0.000 description 3
- 210000004556 brain Anatomy 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 230000006854 communication Effects 0.000 description 1
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- 238000009792 diffusion process Methods 0.000 description 1
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Abstract
The utility model provides a light recovery device and a corresponding three-dimensional imaging system. The light recovery device includes a light splitter with a plurality of reflecting surfaces and sub light paths which are corresponding to each of the reflecting surfaces, wherein the light splitter is used for transmitting second polarized light reflected by first polarized light, the plurality of reflecting surfaces of the light splitter are used for segmenting an incident image into a plurality of sub images, and the sub light paths reflect corresponding sub images to preset areas so that the sub images can be fused to form a complete image. With the above structure adopted, the size of the light recovery device can be greatly decreased.
Description
Technical field
The utility model relates to optical technical field, and specifically, the utility model relates to a kind of light retracting device and corresponding stereo imaging system.
Background technology
In prior art, common polarized light 3D system is in order to obtain 3D effect, the mixed polarized light (or natural light) that projector need to be sent is got on polaroid to obtain linearly polarized light, for example Fig. 1 shows the know-why schematic diagram that obtains linearly polarized light in a kind of typical common polarized light 3D system, wherein: P light is got in screen by polaroid, S light is polarized sheet and reflects.Like this, in whole light path, S light is wasted.Therefore in actual screen, the brightness of visible ray only has through the half before polaroid.
For addressing the above problem, people have proposed a kind of light and have reclaimed stereo imaging system, the mixed polarized light (or natural light) that projector sends was divided into P light and S light by light splitting piece before this, P light directly passes through light splitting piece, after polaroid, get in screen, and S light is for example, through reflection and relevant treatment (polarization characteristic adjustment), and then projects to the image making in screen through the former S light of reflection and overlap with P light image.So just the S light of wasting in original Fig. 1 is recycled again.Recycle through this, can improve greatly light intensity, the brightness of the polarized light of polaroid output can be doubled.
But due to the only scattered light that projector sends, in the communication process along light path, the hot spot of image can be increasing, due to after S light image reflected by light splitting piece, light path strengthens, thereby causes the problem of following three aspects:
1) volume is large, causes transport, packaging, and the inconvenience of installation and working service, for example projection needs enough large window.
2) weight is large; Cause transport, packaging, the inconvenience of installation and working service.
3) cost is high, the cost of related accessory and because volume is large, and the cost that weight causes greatly increases.
Therefore, current in the urgent need to a kind of solution that can reduce system bulk, weight and cost.
Utility model content
Task of the present utility model is to provide a kind of light that can reduce system bulk, weight and cost and reclaims solution.
For realizing above-mentioned utility model object, the utility model provides a kind of light retracting device, comprise: containing the optical splitter of multiple reflectings surface, and corresponding to the sub-light path of each reflecting surface, described optical splitter reflects the second polarized light for transmission the first polarized light, incident image is divided into multiple subimages by each reflecting surface of optical splitter, each described sub-light path comprises the catoptron matching with corresponding reflecting surface, the size of the subimage that the size of described catoptron and spectrophotometric reflection face are partitioned into adapts, and be arranged in the position near the reflecting surface that coordinates, corresponding subimage is reflexed to predeterminable area by each sub-light path, make each subimage be fused into complete image.
Wherein, described optical splitter is the Amici prism containing multiple reflectings surface.
Wherein, described optical splitter is to have four of 4 reflectings surface to cut apart Amici prism.
Wherein, described optical splitter is to have two of 2 reflectings surface to cut apart Amici prism.
Wherein, every described sub-light path comprises described catoptron and back-end processing unit successively, and the polarization angle of described back-end processing unit for rotating described the second polarized light, makes it convert the first polarized light to.
Wherein, described in each, the catoptron of sub-light path is installed on omnidirectional's adjustment mirror holder.
Wherein, each sub-light path is also for being fused into after complete image and the image stack of the first polarized light of transmission each subimage.
The utility model also provides a kind of stereo imaging system, comprise: projector, be arranged on the light retracting device on projector output light path, described smooth retracting device is aforesaid smooth retracting device, for the sequence of stereoscopic images of projector output is carried out to polarized light modulation, the image of described the first polarized light of described smooth retracting device output and the image of described the second polarized light are respectively as left-and right-eye images.
The utility model also provides another kind of stereo imaging system, comprise: many projectors, be arranged on every light retracting device on projector output light path, described smooth retracting device is aforesaid smooth retracting device, for the sequence of stereoscopic images of projector output is carried out to polarized light modulation, the image that described every light retracting device is all exported single polarization angle is as left eye or eye image.
Compared with prior art, the utlity model has following technique effect:
1, the utility model can significantly reduce the volume of light retracting device.
2, the utility model is convenient to the launching position of subimage to adjust, and subimage can perfectly be merged.
Brief description of the drawings
Fig. 1 shows the know-why schematic diagram that obtains linearly polarized light in a kind of typical common polarized light 3D system;
Fig. 2 shows the light path schematic diagram of the light retracting device of an embodiment of the utility model;
Fig. 3 shows a kind of 4 light splitting schematic diagram of cutting apart Amici prism;
Fig. 4 shows incident image by 4 examples cutting apart the subimage that is divided into four quadrants of Amici prism;
Fig. 5 shows the schematic diagram of the moving direction of subimage in screen;
Fig. 6 shows the structural representation of the stereo imaging system based on unit scheme in another embodiment of the utility model;
Fig. 7 shows the structural representation of the stereo imaging system based on two-shipper scheme in another embodiment of the utility model.
Embodiment
First, it should be noted that, P polarized light described herein and S polarized light are the synonym of two kinds of linearly polarized lights of mutual difference, and P polarized light and S polarized light can have multiple implication, for example, can be, but not limited to define by any one in following a to f:
A.P polarized light is horizontal linear polarization light, and S polarized light is perpendicular linear polarization light
B.P polarized light is perpendicular linear polarization light, and S polarized light is horizontal linear polarization light
C.P polarized light is 45 degree linearly polarized lights, and S polarized light is 135 degree linearly polarized lights
D.P polarized light is 135 degree linearly polarized lights, and S polarized light is 45 degree linearly polarized lights
E.P polarized light is for seeing through linearly polarized light, and S polarized light is reflected ray polarized light
F.P polarized light is reflected ray polarized light, and S polarized light is for seeing through linearly polarized light
Below in conjunction with drawings and Examples, the utility model is done further and described.
The light retracting device providing according to an embodiment of the present utility model is provided Fig. 2, comprise: the Amici prism with 4 reflectings surface, correspond respectively to the catoptron 1a of each reflecting surface of Amici prism, 1b, 1c, 1d, the first reflecting surface 1a and the sub-light path of back-end processing cell formation first thereof (upper sub-light path), the second reflecting surface 1b and the sub-light path of back-end processing cell formation second thereof (lower sub-light path), the 3rd reflecting surface 1c and back-end processing cell formation the 3rd sub-light path (left sub-light path) thereof, the 4th reflecting surface 1d and back-end processing cell formation the 4th sub-light path (right sub-light path) thereof.In addition, Amici prism rear is also provided with corresponding back-end processing unit.
In the present embodiment, having used optical segmentation technology, is that multiple independently little pictures are processed separately a complete picture segmentation, finally by picture integration technology, the little picture splitting is remerged into a secondary complete picture.In original smooth retracting device, be to adopt light splitting piece complete image to be carried out to the light splitting of P polarisation and S polarisation, and then isolated P polarisation and S polarisation are processed respectively.In the present embodiment, used the Amici prism with four reflectings surface, each reflecting surface of Amici prism all can reflect S polarizing transmission P polarisation.Fig. 3 shows the light splitting schematic diagram of the Amici prism of the present embodiment, wherein P polarisation is transmitted, the picture of S polarisation has been done 4 by four reflectings surface cuts apart (as shown in Figure 4), form the sprite of four quadrants, and 4 of left and right direction reflection up and down respectively, the catoptron of the sub-light path in upper and lower, left and right corresponds respectively to the sprite of these 4 direction reflections.In an example, the catoptron of the sub-light path in upper and lower, left and right respectively corresponding and reflect first, the 4th, the subimage of second, third quadrant.Like this, when after mixed polarized light (or natural light) image incident Amici prism, will obtain the P polarized light image of transmission, and the 4 width S polarisation subimages that reflect to four direction.4 width S polarisation subimages, through the reflection of corresponding catoptron, are transmitted to default appointed area (for example respective regions in screen) separately along corresponding sub-light path, are undertaken seamless splicedly can being fused into a complete image by picture integration technology.
In the present embodiment, the back-end processing unit of every sub-light path for example, for being adjusted into S polarisation P polarisation (the polarization angle rotation of S polarisation being obtained to P polarisation), like this, complete image after fusion is P polarized light image, by itself and the P polarized light image stack of getting to screen from Amici prism transmission, just can increase brightness.
Further, with reference to figure 2, in the present embodiment, the catoptron of each sub-light path can be installed on the omnidirectional coordinating with it and adjust on mirror holder 2a, 2b, 2c, 2d, adjust mirror holder by adjusting omnidirectional, can adjust easily the projected position of each number of sub images, make to project the seamless spliced complete image (moving direction of subimage in screen as shown in Figure 5) that is fused into of two width subimages of screen.This fused images and the image stack of getting to screen from Amici prism transmission, can increase the brightness of screen.
The present embodiment is keeping the high light efficiency of traditional light retracting device, in the feature of high image quality, owing to having adopted optical segmentation technology, segmenting the image into fritter processes, greatly dwindle the physical size of optical element, dwindle the large small size of system, reduce the weight of system, this is because the inventor finds through research: 1) image of incidence window is divided into multiple subimages by the reflecting surface of Amici prism, the size of so image will be dwindled at least half, just corresponding the dwindling of energy of the size of catoptron (for example latitudinal size) like this, the area of the required window of the catoptron of each like this correspondence significantly dwindles, 2) dwindling due to the size of catoptron, catoptron can be arranged compactlyer, for example be arranged in the position near Amici prism (its distance is as long as ensure the S polarisation of reflection and the light path non-interference of the P polarized light image of transmission) more, so image arrives also corresponding the dwindling of light path of corresponding catoptron from the reflecting surface of Amici prism, and then reduce image along with the diffusion that light path increases, the incidence window of catoptron can be dwindled further.Therefore, under the combined action of above-mentioned two factors, distance between the size of catoptron and subsequent optical element and each element can significantly be dwindled, and makes the shared volume of every corresponding light path of subimage much smaller than 1/4 of the reflected light path of traditional light retracting device.So, need four light paths (traditional light retracting device reclaims the S polarisation being reflected only needs a light path) although the present embodiment reclaims the S polarisation that is reflected, the still overall volume of reduction system significantly of the present embodiment.
According to other embodiment of the present utility model, the utility model also can adopt the optical splitter with other number (being more than or equal to 2) reflecting surface, and for example 2 cut apart Amici prism, 3 and cut apart Amici prism, 5 and cut apart Amici prism etc.2 to cut apart Amici prism can be prism, comprises He Liangge side, a bottom surface, and wherein two sides are reflecting surface, can reflect the second polarized light by transmission the first polarized light, and bottom surface can transmission the first polarized light.
According on the other hand of the present utility model, the light retracting device based on above-described embodiment can be realized respectively the stereo imaging system based on unit scheme and the stereo imaging system based on two-shipper scheme.
According to an embodiment of the present utility model, as shown in Figure 6, in stand-alone application, on projector output light path, increase a light retracting device based on previous embodiment the sequence of stereoscopic images of output is carried out to polarized light modulation.Wherein, the back-end processing unit in the each sub-light path of this time retracting device does not need S polarisation to be converted to P polarisation, but S polarisation after merging is directly as left eye (or right eye) image, simultaneously using the P polarisation of transmission directly as right eye (or left eye) image.Screen adopts metal screen, and polarized light is keeping polarization direction constant after screen reflection like this.Meanwhile, in projector output 3D synchronizing signal, to controller, controller is according to 3D synchronizing signal output 3D control signal.When the image sequence of screen reflection is after polarization 3D glasses, can make right and left eyes see respectively right and left eyes image, thereby in brain synthetic stereo image.
According to an embodiment of the present utility model, as shown in Figure 7, in the two-shipper application based on previous embodiment, two projectors are exported respectively left-eye image sequence and eye image sequence.On two projector output light paths, respectively increase a light retracting device based on previous embodiment, respectively left-eye image sequence and the eye image sequence of two projector outputs are carried out to polarized light modulation, and then projection have single polarization direction and the mutually perpendicular left-and right-eye images sequence of polarization angle in screen.Screen is metal screen, to ensure that polarized light is keeping polarization direction constant after screen reflection.When the image sequence of screen reflection is after polarization 3D glasses, can make right and left eyes see respectively left-and right-eye images sequence, thereby in brain synthetic stereo image.
In addition, smooth recovery scheme of the present utility model is also applicable to the vertical machine imaging of multimachine, and this is that those skilled in the art are understandable.
The foregoing is only the schematic embodiment of the utility model, not in order to limit scope of the present utility model.Any those skilled in the art, is not departing from equivalent variations, amendment and the combination under the prerequisite of design of the present utility model and principle, done, all should belong to the scope of the utility model protection.
Claims (10)
1. a light retracting device, comprise: the optical splitter with multiple reflectings surface, and correspond respectively to the sub-light path of each reflecting surface, wherein, described optical splitter is for the first polarized light and reflection second polarized light of transmission incident image, described multiple reflectings surface of optical splitter are for incident image is divided into multiple subimages, and corresponding subimage is reflexed to predeterminable area by each described sub-light path, makes each subimage be fused into complete image.
2. smooth retracting device according to claim 1, is characterized in that, described optical splitter is the Amici prism with multiple reflectings surface.
3. smooth retracting device according to claim 2, is characterized in that, described optical splitter is to have four of 4 reflectings surface to cut apart Amici prism.
4. smooth retracting device according to claim 2, is characterized in that, described optical splitter is to have two of 2 reflectings surface to cut apart Amici prism.
5. smooth retracting device according to claim 1, it is characterized in that, every described sub-light path comprises the catoptron matching with corresponding reflecting surface successively, the size of the subimage that the size of described catoptron and spectrophotometric reflection face are partitioned into adapts, and is arranged in the position near the reflecting surface coordinating.
6. smooth retracting device according to claim 5, is characterized in that, described in each, the catoptron of sub-light path is installed on omnidirectional's adjustment mirror holder.
7. smooth retracting device according to claim 5, is characterized in that, every described sub-light path also comprises back-end processing unit.
8. smooth retracting device according to claim 7, it is characterized in that, described back-end processing unit, for the polarization angle of rotating described the second polarized light, makes it convert the first polarized light to, and each subimage is fused into after complete image and the image stack of the first polarized light of transmission.
9. a stereo imaging system, comprise: projector, be arranged on the light retracting device on projector output light path, described smooth retracting device is the light retracting device described in any one in described claim 1 to 7, for the sequence of stereoscopic images of projector output is carried out to polarized light modulation, the image of described the first polarized light of described smooth retracting device output and the image of described the second polarized light are respectively as left-and right-eye images.
10. a stereo imaging system, comprise: two projectors, be separately positioned on two light retracting devices on every projector output light path, described smooth retracting device is the light retracting device described in any one in described claim 1 to 8, for the sequence of stereoscopic images of projector output is carried out to polarized light modulation, the image that each described smooth retracting device is all exported single polarization angle is as left eye or eye image.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420057288.1U CN203732813U (en) | 2014-01-10 | 2014-01-29 | Light recovery device and corresponding three-dimensional imaging system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410012356.7 | 2014-01-10 | ||
| CN201410012356 | 2014-01-10 | ||
| CN201420057288.1U CN203732813U (en) | 2014-01-10 | 2014-01-29 | Light recovery device and corresponding three-dimensional imaging system |
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| CN201420057288.1U Expired - Fee Related CN203732813U (en) | 2014-01-10 | 2014-01-29 | Light recovery device and corresponding three-dimensional imaging system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103760679A (en) * | 2014-01-10 | 2014-04-30 | 雷欧尼斯（北京）信息技术有限公司 | Light recovery device and corresponding stereoscopic imaging system |
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| CN114779494B (en) * | 2022-06-17 | 2022-09-02 | 深圳市文生科技有限公司 | Imaging element and imaging device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE102004036468A1 (en) * | 2004-07-28 | 2006-03-23 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Projection device and filter for this |
| JP5332331B2 (en) * | 2008-06-17 | 2013-11-06 | ソニー株式会社 | Stereoscopic image projection device and adapter for stereoscopic image projection device |
| CN101943799A (en) * | 2010-07-16 | 2011-01-12 | 黄凤仙 | Polarization-type three-dimensional double-projection optical system |
| CN101968573A (en) * | 2010-09-03 | 2011-02-09 | 黄凤仙 | Polarization-type three-dimensional double-projection optical system |
| CN102902151A (en) * | 2012-10-29 | 2013-01-30 | 白炜 | Light path structure for realizing 3D (Three Dimensional) projection system by using prism combination |
| CN103217863B (en) * | 2013-04-11 | 2015-10-21 | 雷欧尼斯（北京）信息技术有限公司 | A kind of polarization 3D system based on Polarization recovery |
| CN103760679B (en) * | 2014-01-10 | 2017-09-01 | 雷欧尼斯（北京）信息技术有限公司 | Light retracting device and corresponding stereo imaging system |
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2014
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103760679A (en) * | 2014-01-10 | 2014-04-30 | 雷欧尼斯（北京）信息技术有限公司 | Light recovery device and corresponding stereoscopic imaging system |
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| CN103760679A (en) | 2014-04-30 |
| CN103760679B (en) | 2017-09-01 |
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Granted publication date: 20140723 |