CN101995754A - Camera shooting equipment for spherical grating holographic stereo pictures - Google Patents
Camera shooting equipment for spherical grating holographic stereo pictures Download PDFInfo
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- CN101995754A CN101995754A CN201010283210.8A CN201010283210A CN101995754A CN 101995754 A CN101995754 A CN 101995754A CN 201010283210 A CN201010283210 A CN 201010283210A CN 101995754 A CN101995754 A CN 101995754A
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Abstract
The invention provides camera shooting equipment for true color holographic stereo pictures, which is characterized in that a spherical grating formed by micro-lens arrays is formed between a photosensitive device and an imaging lens of the camera shooting equipment; and the distance delta from the core of each micro-lens in the spherical grating to the plane of the photosensitive device, the distance v between the core of the micro-lens and the aperture diaphragm plane corresponding to the equivalent objective lens of the imaging lens, the focal length f of the micro-lens, the maximum circle diameter delta of the micro-lens occupying the grating plane, and the aperture diaphragm diameter D corresponding to the equivalent objective lens of the imaging lens satisfy the formula as follows: f<-1>=delta<-1>+v<-1>, and meanwhile, the delta is one time to two times of the f. When the equipment is used for shooting, each pixel point in the effective imaging region corresponding to each spherical micro-lens of the spherical grating is inverted and rearranged according to the upper-lower-left-right position, the obtained pictures reappear and are covered with the spherical grating reduced or amplified with the same scale to the pictures, and the holographic stereo vision can be formed in a certain view field through the picture division of the spherical grating.
Description
Technical field
The present invention relates to a kind of stereo image shooting equipment, particularly a kind of holographic three-dimensional image pickup apparatus.
Background technology
The laser hologram photography technology is to utilize the interference of light principle, write down the full detail of thing light wave with the form of interference fringe, it is with two bundle one-wavelength lasers with the frequency homophase, a branch of through photographic plate is as reference light, a branch of being radiated on the object reflects to form thing light through object, and thing light and reference light produce interference fringe on photographic plate, photographic plate writes down these interference fringes, thereby realizes the 3 D stereo record to field data.It is true that the laser hologram photography technology has stereoscopic sensation, and the photo limitlessly detachable such as cuts at characteristic (each part of the resulting photo of laser hologram photography technology, no matter large or small, can both reveal original whole scene again).But the laser hologram photography technology is high to light source requirements, in order to satisfy reference light and thing light frequency and phase place requirement, usually use and obtain required reference light and thing radiant through the spectroscope beam split with source laser, require scene being shot that other light source can not be arranged simultaneously, this makes and utilizes the movable scene information of laser hologram photography technical notes to also have a lot of technological difficulties to solve.Use special-purpose one-wavelength laser source as unique on-the-spot lighting source because record is on-the-spot, make document image not have the realistic colour of natural scene.
Summary of the invention
The objective of the invention is to design one simple to operate, the holographic three-dimensional image pickup apparatus of color distortion can not appear.
For realizing above goal of the invention, design a spheric grating, spheric grating is to be the arcwall face of small spherical surface hill and evenly closely to be arranged in the square or tetragonal transparent material of regular hexagon or hexagon and to constitute by the surface.The transparent material that constitutes spheric grating can be: glass, or Polyvinylchloride, or tygon, or polypropylene, or polyethylene terephthalate, or polybutylene terephthalate, or polystyrene, or polycarbonate, or polymethylmethacrylate, or thermoplastic polyurethane.The catercorner length of the small spherical surface hill on spheric grating surface is between 0.001 to 2 millimeter, one of percentage that the small spherical surface hill height on spheric grating surface is protruding catercorner length is between 1/2nd, the centre distance of the adjacent small spherical surface hill on spheric grating surface is between 0.001 to 2 millimeter, and it is 1 times to 2 times of little shape optical lens focal length of forming of small spherical surface hill that spheric grating is removed thickness behind the small spherical surface hill height on surface.The arcwall face of the small spherical surface hill on spheric grating surface is the part of sphere, and each small spherical surface hill equivalence is a little shape optical lens (lenticule), and each lenticule has equal focal length, identical height and identical focal plane.
Be positioned over the above-mentioned spheric grating that constitutes by microlens array between image capture apparatus sensor devices and the imaging lens and cover and make a holographic three-dimensional image pickup apparatus of spheric grating on the sensor devices, as shown in Figure 1.Require that the corresponding aperture diaphragm of each lenticule mirror heart that institute adds spheric grating and photoreceptor plan range Δ, the lenticule mirror heart and the equivalent object lens of imaging lens is interplanar to be taken the corresponding aperture diaphragm diameter D of equivalent object lens of greatest circle diameter δ, imaging lens in the grating planar, satisfy f apart from v, lenticule focal distance f, lenticule
-1=Δ
-1+ v
-1,
The while Δ is 1 times to 2 times of f.When the holographic three-dimensional image pickup apparatus of spheric grating is worked, facing to the shooting image, (effectively imaging region is meant that the thing light of scene being shot is by the aperture diaphragm of imaging lens and the tiny area of the imaging of lenticule on photoreceptor with the effective imaging region on the photoreceptor corresponding under each spherical microlens of spheric grating, it be actually the aperture diaphragm workplace by lenticule on photoreceptor, form the picture region) in all pixels as a holographic three-dimensional pixel cell, be coated with what lenticules on the sensor devices, what holographic three-dimensional pixel cells are just arranged on the image, each pixel in the holographic three-dimensional pixel cell is reset by position inversion up and down, the relative position of each holographic three-dimensional pixel cell on image is constant, forms holographic three-dimensional image.Pixel is reset the spheric grating of the holographic three-dimensional image repetition of back gained and covering thereon and image scaled down or amplification, make each lenticule of spheric grating all be in the holographic three-dimensional pixel cell of image directly over, in certain visual field, divide picture by spheric grating, the left-side images that allows imaging lens left part light form enters people's left eye, the image right that imaging lens right part light forms enters people's right eye, form stereoscopic vision, mobile viewing location makes other parallax to entering people's right and left eyes, forms holographic three-dimensional vision.
Because f is satisfied in each the lenticule focal length and the installation site of microlens array
-1=Δ
-1+ v
-1So each lenticule of microlens array all can image in lens opening diaphragm workplace on each self-corresponding holographic three-dimensional pixel cell, a point on all unique corresponding aperture diaphragm of each pixel of holographic three-dimensional pixel cell, and the difference of aperture diaphragm scene being shot relatively all has different visual angles, that is to say, each pixel of holographic three-dimensional pixel cell has all write down an exclusive visual angle of an on-the-spot object point information, and the picture that forms through the thing light of any on the diaphragm of lens opening is recorded on the same relative position of all holographic three-dimensional pixel cells.Picture point on the same relative position of all holographic three-dimensional pixel cells is synthesized a width of cloth anaglyph, and what picture points holographic three-dimensional pixel cell has, and just forms what anaglyphs.
Because satisfy each lenticule of microlens array and position
Thereby guaranteed that adjacent holographic three-dimensional pixel cell is adjacent one another are and not overlapping, guaranteed the uniqueness of the directionality breath of arbitrary pixel record on the holographic three-dimensional pixel cell.
Because each pixel in each holographic three-dimensional pixel cell is inverted by position up and down and is reset, guaranteed holographic three-dimensional image with sphere or cylindrical grating branch as the time three-dimensional depth and picture orientation consistance.Can not appear at and guarantee that picture level and vertical orientations just can not guarantee correct, the correct situation appearance that just can not guarantee picture level and vertical orientations when having guaranteed depth orientation correct in depth orientation when correct.
The holographic three-dimensional image pickup apparatus of spheric grating of the present invention has following characteristics:
1, the stereo-picture that the holographic three-dimensional image pickup apparatus of spheric grating of the present invention is absorbed is the holographic three-dimensional image of true color, any pixel of holographic three-dimensional pixel cell, brightness and chrominance information have all been write down from corresponding unique position on the diaphragm workplace of lens opening, whole pixels of holographic three-dimensional pixel cell, co-registered from the brightness and the chrominance information of the whole aperture diaphragm workplace of camera lens, when reappearing stereo-picture, left eye is watched the synthetic width of cloth anaglyph of picture point on the same relative position that whole holographic three-dimensional pixel cells take over by lenticule, right eye is watched another the synthetic width of cloth anaglyph of picture point on the same relative position of taking back of whole holographic three-dimensional pixel cells by lenticule, two anaglyphs merge through brain and form a true color stereo-picture, mobile viewing location, can see that another stereoscopic parallax image is right, in stereoscopic fields of view, thereby human eye can see that the very color stereoscopic parallax image of different azimuth is to forming very color holographic three-dimensional vision.
2, the stereo omnibearing number that the holographic three-dimensional image pickup apparatus of spheric grating of the present invention is write down is the resolution decision by sensor devices, when the spheric grating number of whole picture is determined, the stereo omnibearing number of stereo-picture record is directly proportional with the resolution of sensor devices, on a holographic three-dimensional pixel cell, the all unique point of each pixel corresponding to lens opening diaphragm workplace, an all unique azimuth information that has write down from camera lens, picture point on the same relative position of whole holographic three-dimensional pixel cells is synthesized a width of cloth anaglyph, what picture points holographic three-dimensional pixel cell has, just can synthesize what anaglyphs, what stereo omnibearings holographic three-dimensional image has just write down.
3, the stereo-picture that absorbed of the holographic three-dimensional image pickup apparatus of spheric grating of the present invention, its resolution are by the lenticule quantity decision of spheric grating.Because stereo-picture divides picture to watch by spheric grating, so on a definite position, the people is simple eye can only to see its pixel of corresponding holographic three-dimensional pixel cell down by a lenticule, pixel on the same relative position of all holographic three-dimensional pixel cells synthesizes an anaglyph, therefore, the lenticule quantity of the spheric grating that covers on the whole picture is consistent with actual each anaglyph pixel count of watching.
4, the holographic three-dimensional image pickup apparatus of spheric grating of the present invention, the color of record stereo-picture is by the decision of sensor devices record color, when photoreceptor is monochrome, can only realize monochromatic holographic three-dimensional image record, when photoreceptor is colour, can realize color hologram stereo-picture record.
5, the holographic three-dimensional image pickup apparatus of spheric grating of the present invention, the maximum disparity of the stereo-picture of its record is by the effectively logical light diameter decision of lens opening diaphragm workplace, and effectively logical light diameter is big more, and the maximum disparity of stereo-picture is just big more.
6, the holographic three-dimensional image pickup apparatus of spheric grating of the present invention, for the steric information of watching that can be correct, stereo-picture will carry out reverse rearrangement with all pixel positions of holographic three-dimensional pixel cell when reappearing on level and vertical direction, with guarantee holographic three-dimensional image with sphere or cylindrical grating branch as the time three-dimensional depth and picture orientation consistance.
When 7, making a video recording with the holographic three-dimensional image pickup apparatus of spheric grating of the present invention, on-the-spot light source is not had specific (special) requirements, this and laser hologram photography technology have essential distinction, thereby make holographic three-dimensional shooting become convenient feasible.
Description of drawings
For principle of the present invention and system's implementation method are described, provide following accompanying drawing:
Fig. 1 is the holographic three-dimensional image pickup apparatus of a spheric grating structured flowchart.
Fig. 2 is the spheric grating structural representation of the holographic three-dimensional image pickup apparatus of spheric grating.
Fig. 3 is the spheric grating installation requirement synoptic diagram of the holographic three-dimensional image pickup apparatus of spheric grating.
Fig. 4 is a sensor devices epigraph pixel arrange icons intention.
Fig. 5 is that the image slices vegetarian refreshments after the image slices vegetarian refreshments is reset is arranged synoptic diagram.
Fig. 6 is the three-dimensional reconstruction synoptic diagram.
Fig. 7 is a three-dimensional reconstruction visual field distribution schematic diagram.
Fig. 8 can write down the maximum disparity figure of stereo-picture for the present invention.
Embodiment
Below in conjunction with accompanying drawing principle of the present invention is described in further detail.
Fig. 1 is the holographic three-dimensional image pickup apparatus of a spheric grating structured flowchart.
Wherein, 1 is scene being shot, and 2 is the equivalent object lens of pick-up lens, 20 is the aperture diaphragm of the equivalent object lens correspondence of pick-up lens, 3 spheric gratings for the microlens array formation, and 4 is sensor devices, 5 are image picture point rearrangement circuit, and 6 is camera storage and other control circuit.
The holographic three-dimensional image pickup apparatus of spheric grating is when focusing in scene 1 shooting under the control of camera storage and other control circuit 6, scene 1 images on the grating planar of spheric grating 3 by lens focus, each spherical microlens of spheric grating will converge at it from the light of difference on the workplace of the aperture diaphragm 20 of camera lens equivalence object lens correspondence down on photoreceptor, (effectively imaging region is meant that the thing light of scene being shot is by the aperture diaphragm of imaging lens and the tiny area of the imaging of lenticule on photoreceptor with the effective imaging region on the photoreceptor corresponding under each spherical microlens of spheric grating, it be actually the aperture diaphragm workplace by lenticule on photoreceptor, form the picture region) in all pixels as a holographic three-dimensional pixel cell, photoreceptor writes down these stereo image information that are made of holographic three-dimensional pixel cell one by one and send the image picture point to reset circuit 5, the image picture point is reset circuit 5 rearrangement is inverted in the position of the pixel in each holographic three-dimensional pixel cell on level and vertical direction, the invariant position of each holographic three-dimensional pixel cell on picture, the holographic three-dimensional image after pixel is reset send camera storage and 6 pairs of images of other control control circuit to write down and export.
Fig. 2 is the structural representation of the spheric grating of the holographic three-dimensional image pickup apparatus of spheric grating.
Wherein Fig. 2 (1) is that spheric grating is to be the arcwall face of small spherical surface hill and a kind of structural representation when evenly closely being arranged in square by the surface, and Fig. 2 (2) is that spheric grating is to be the arcwall face of small spherical surface hill and evenly closely to be arranged in orthohexagonal a kind of structural representation by the surface.
Fig. 3 is the spheric grating installation requirement synoptic diagram of the holographic three-dimensional image pickup apparatus of spheric grating.
Wherein, 2 is the equivalent object lens of pick-up lens, 3 spheric gratings for the microlens array formation, 4 is sensor devices, D is the aperture diaphragm diameter of imaging lens equivalence object lens correspondence, and Δ is the lenticule mirror heart and photoreceptor plan range, and v is the lenticule mirror heart and the corresponding interplanar distance of aperture diaphragm of imaging lens equivalence object lens, f is the lenticule focal length, and δ is that lenticule takies the greatest circle diameter in the grating planar.
Each ginseng satisfies f among Fig. 3
-1=Δ
-1+ v
-1,
When satisfying f
-1=Δ
-1+ v
-1The time, each lenticule of microlens array all can image in lens opening diaphragm workplace on each self-corresponding holographic three-dimensional pixel cell, a point on all unique corresponding aperture diaphragm workplace of each pixel of holographic three-dimensional pixel cell, and the difference of aperture diaphragm workplace scene being shot relatively all has different visual angles, that is to say, each pixel of holographic three-dimensional pixel cell has all write down an exclusive visual angle of field data, and the picture that forms through the thing light of any on the diaphragm workplace of lens opening is recorded on the same relative position of all holographic three-dimensional pixel cells.Picture point on the same relative position of all holographic three-dimensional pixel cells is synthesized a width of cloth anaglyph, and what picture points holographic three-dimensional pixel cell has, and just forms what anaglyphs.
When satisfying
The time, make between adjacent holographic three-dimensional pixel cell adjacent one another are and not overlapping, with the uniqueness of the directionality breath of guaranteeing arbitrary pixel record on the holographic three-dimensional pixel cell.
Fig. 4 is a sensor devices epigraph pixel arrange icons intention.
For convenience of description, Fig. 4 has enumerated the little spherical surface hill of spheric grating and evenly closely is arranged in square and supposes that each holographic three-dimensional pixel cell is the situation of 4 * 4 pixels.
Among Fig. 4,7 are the holographic three-dimensional pixel cell structure before the pixel rearrangement, 11,12,13,14,21,22,23,24,31,32,33,34,41,42,43,44 represent the different pixels point on the holographic three-dimensional pixel cell and the ranks position at place thereof respectively, A1, A2 ..., B1, B2 ... ... the location label in picture for the holographic three-dimensional pixel cell of difference.
Fig. 5 is that the image slices vegetarian refreshments after the image slices vegetarian refreshments is reset is arranged synoptic diagram.
Fig. 5 is with the result of the pixel in each the holographic three-dimensional pixel cell among Fig. 4 after level and the enterprising line position inversion of vertical direction rearrangement.Among Fig. 5,8 are the holographic three-dimensional pixel cell structure after the pixel rearrangement.
By Fig. 4, Fig. 5 as can be known, the rearrangement of pixel is only carried out in each holographic three-dimensional pixel cell, and each holographic three-dimensional pixel cell is with respect to the invariant position of whole picture.
Among Fig. 5, the point that label is identical in all holographic three-dimensional pixel cells constitutes a width of cloth anaglyph, as in this this programme, 11 in all holographic three-dimensional pixel cells constitute a width of cloth anaglyph, 12 in all holographic three-dimensional pixel cells constitute a width of cloth anaglyph, in all holographic three- dimensional pixel cells 13,14,21,22,23,24,31,32,33,34,41,42,43,44 all can constitute a width of cloth anaglyph, each anaglyph is the picture that is formed by the zones of different position of writing down lens opening diaphragm workplace by thing light, all there is certain orientation parallax, has the anaglyph that there is certain parallax in 16 width of cloth in this programme.
Fig. 6 is the three-dimensional reconstruction synoptic diagram.
For convenience of description, Fig. 6 has enumerated the little spherical surface hill of spheric grating and evenly closely is arranged in square and supposes that each holographic three-dimensional pixel cell is the situation of 4 * 4 pixels.
Among Fig. 6,9 is the display ball concave grating, and 10 is display screen, and 110 is people's left eye, and 120 is people's right eye.
Spheric grating with the image repetition after the pixel rearrangement and covering thereon and image scaled down or amplification, as shown in Figure 6, because the existence of spheric grating, left eye can only be seen the synthetic width of cloth anaglyph of picture point on the same relative position that whole holographic three-dimensional pixel cells take over by the spheric grating lenticule, right eye can only be seen the synthetic width of cloth anaglyph of picture point on the same relative position of taking back of whole holographic three-dimensional pixel cells by the spheric grating lenticule, two anaglyphs merge through brain and form a true color stereo-picture, the moving-head position, can see that another stereoscopic parallax image is right, in stereoscopic fields of view, the very color stereoscopic parallax image that human eye can be seen different azimuth is to from forming very color holographic three-dimensional vision.
Fig. 7 is a three-dimensional reconstruction visual field distribution schematic diagram.
For convenience of description, Fig. 7 has enumerated the little spherical surface hill of spheric grating and evenly closely is arranged in square and supposes that each holographic three-dimensional pixel cell is the situation of 4 * 4 pixels.
Among Fig. 7, L1 is for watching the left eye proximal most position of stereoeffect, R1 is for watching the right eye proximal most position of stereoeffect, L2 is the left eye highest distance position that stereoeffect can be watched in the leftmost side, R2 is the right eye highest distance position that stereoeffect can be watched in the leftmost side, L3 is the left eye highest distance position that stereoeffect can be watched in the rightmost side, R3 is the right eye highest distance position that stereoeffect can be watched in the rightmost side, L1 and R1, L2 and R2, distance between L3 and R3 is for equaling the human eye spacing, by L1, R1, L2, the trapezoid area of 4 formations of R3 is distributed areas, three-dimensional reconstruction visual field, in this zone, removable head position is watched the stereo-picture of different azimuth.
Fig. 8 can write down the maximum disparity figure of stereo-picture for the present invention.
With the holographic three-dimensional image stereo-picture that pickup apparatus is taken the photograph of spheric grating, the picture point on the same relative position of all holographic three-dimensional pixel cells is synthesized a width of cloth anaglyph, and what picture points holographic three-dimensional pixel cell has, and just forms what anaglyphs.A point on the diaphragm workplace of all unique corresponding lens opening of each pixel of its holographic three-dimensional pixel cell, any anaglyph all be by a point on the imaging lens aperture diaphragm workplace form (to filter pixel be that certain area is arranged as examining, then any anaglyph is to be formed by a tiny area on the imaging lens aperture diaphragm workplace), and the difference of aperture diaphragm workplace scene being shot relatively all has different visual angles, have the certain depth difference two fixedly the parallax of object point by the image of 2 formation of different spacing on the diaphragm workplace of lens opening vary in size, as shown in Figure 7, wherein: a is 2 distances on the diaphragm workplace of camera lens equivalence object lens corresponding aperture footpath, L is a sighting distance, P, Q represents two object points of different sighting distances respectively, Δ L is P, the depth of Q two object points is poor, θ is that two object points pass through on the aperture diaphragm workplace at a distance of the parallax that is 2 formation of a, α
1, α
2, β
1, β
2Be two the angle of light by on object point P, Q and the aperture diaphragm workplace for a being apart, its parallax θ can be formulated as:
The maximal value of distance between two points equals aperture diaphragm diameter D, then maximum disparity θ on the aperture diaphragm workplace
MaxFor:
By following formula as can be known, maximum disparity is directly proportional with aperture diaphragm diameter D, with square being inversely proportional to of sighting distance.And common camera lens opening diaphragm diameter is very little, and in order to reach desirable stereoeffect, the aperture diaphragm diameter that requires the poly-equivalent object lens correspondence of camera lens here is more than two spacing 6.5cm of people.
Claims (9)
1. the holographic three-dimensional image pickup apparatus of spheric grating is characterized in that: a spheric grating that is made of microlens array is installed between image capture apparatus sensor devices and the imaging lens, spheric grating covers on the sensor devices, when the holographic three-dimensional image pickup apparatus of spheric grating faces toward the shooting image, with the effective imaging region on the photoreceptor corresponding under each spherical microlens of spheric grating as a holographic three-dimensional pixel cell, each pixel in the holographic three-dimensional pixel cell is reset by position inversion up and down, the relative position of each holographic three-dimensional pixel cell on image is constant, and the holographic three-dimensional image repetition of gained and covering thereon obtain holographic three-dimensional image with the spheric grating of image scaled down or amplification.
2. the holographic three-dimensional image pickup apparatus of spheric grating according to claim 1 is characterized in that: to add spheric grating be to be the arcwall face of small spherical surface hill and evenly closely to be arranged in the square or tetragonal transparent material of regular hexagon or hexagon and to constitute by the surface.
3. the holographic three-dimensional image pickup apparatus of spheric grating according to claim 1 and 2 is characterized in that: the catercorner length of the small spherical surface hill on spheric grating surface is between 0.001 to 2 millimeter, one of percentage that the small spherical surface hill height on spheric grating surface is protruding catercorner length is between 1/3rd, and the centre distance of the adjacent small spherical surface hill on spheric grating surface is between 0.001 to 2 millimeter.
4. the holographic three-dimensional image pickup apparatus of spheric grating according to claim 1 and 2 is characterized in that: the arcwall face of the small spherical surface hill on spheric grating surface is the part of sphere, each small spherical surface hill equivalence is a little shape optical lens, and each little shape optical lens has equal focal length, identical height and identical focal plane.
5. the holographic three-dimensional image pickup apparatus of spheric grating according to claim 1 and 2 is characterized in that: the thickness that spheric grating is removed behind the small spherical surface hill height on surface is between 1 times to 2 times of little shape optical lens focal length.
6. the holographic three-dimensional image pickup apparatus of spheric grating according to claim 1 is characterized in that: add spheric grating the corresponding aperture diaphragm of each lenticule mirror heart and photoreceptor plan range Δ, the lenticule mirror heart and imaging lens equivalence object lens interplanarly take greatest circle diameter δ in the grating planar, aperture diaphragm diameter D that imaging lens equivalence object lens are corresponding, satisfy f apart from v, lenticule focal distance f, lenticule
-1=Δ
-1+ v
-1,
7. the holographic three-dimensional image pickup apparatus of spheric grating is characterized in that according to claim 1 or 5: to add each lenticule mirror heart of spheric grating and photoreceptor plan range Δ be 1 times to 2 times of lenticule focal distance f.
8. the holographic three-dimensional image pickup apparatus of spheric grating according to claim 1 is characterized in that: each pixel in the holographic three-dimensional pixel cell territory of the effective imaging area formation on the photoreceptor corresponding under each spherical microlens of spheric grating is reset by position inversion up and down, the relative position of each holographic three-dimensional pixel cell on image is constant, forms holographic three-dimensional image.
9. the holographic three-dimensional image pickup apparatus of spheric grating according to claim 1 is characterized in that: pixel is reset the holographic three-dimensional image repetition of back gained and covers spheric grating with image scaled down or amplification thereon, make each lenticule of spheric grating all be in the holographic three-dimensional pixel cell of image directly over.
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| CN201010283210.8A CN101995754A (en) | 2010-09-16 | 2010-09-16 | Camera shooting equipment for spherical grating holographic stereo pictures |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105204172A (en) * | 2014-06-25 | 2015-12-30 | 罗伯特·博世有限公司 | View-field display equipment for displaying images for passengers of vehicle |
| CN106094229A (en) * | 2016-08-03 | 2016-11-09 | 绍兴京华激光材料科技有限公司 | A kind of functional membrane and preparation method thereof |
| CN107577058A (en) * | 2010-06-16 | 2018-01-12 | 株式会社尼康 | Image display device |
| CN107609100A (en) * | 2017-09-11 | 2018-01-19 | 叙永县图书馆 | A kind of human body temperature type Library Resources Database Systems and method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107577058A (en) * | 2010-06-16 | 2018-01-12 | 株式会社尼康 | Image display device |
| US11079607B2 (en) | 2010-06-16 | 2021-08-03 | Nikon Corporation | Image display device |
| CN105204172A (en) * | 2014-06-25 | 2015-12-30 | 罗伯特·博世有限公司 | View-field display equipment for displaying images for passengers of vehicle |
| CN106094229A (en) * | 2016-08-03 | 2016-11-09 | 绍兴京华激光材料科技有限公司 | A kind of functional membrane and preparation method thereof |
| CN107609100A (en) * | 2017-09-11 | 2018-01-19 | 叙永县图书馆 | A kind of human body temperature type Library Resources Database Systems and method |
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Application publication date: 20110330 |