CN1407367A - Method and device for stereoscopic vision of double images - Google Patents
Method and device for stereoscopic vision of double images Download PDFInfo
- Publication number
- CN1407367A CN1407367A CN 01130830 CN01130830A CN1407367A CN 1407367 A CN1407367 A CN 1407367A CN 01130830 CN01130830 CN 01130830 CN 01130830 A CN01130830 A CN 01130830A CN 1407367 A CN1407367 A CN 1407367A
- Authority
- CN
- China
- Prior art keywords
- image
- width
- eyes
- cloth
- eye
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Abstract
A double screen image method and device with stereo vision. The said device has two images and geometric optical systems. The both images may be flat or curved simultaneously, one positive meanwhile another negative, one larger than another, and be specially separated. The positions of the both images cannot completely obstruct view of each eye for its image. The both eyes watch, directly or through a geometric optical system, one of both images to make their vision areas overlapped to form a stereo effect by adjusting the positions of the images and the geometric optical system. The method and device are conveniently used to watch movies, TV programs, photos and pictures, etc.
Description
The present invention relates to a kind of stereoscopic vision method and device thereof, especially a kind of with the eyes direct viewing or watch the method and the device thereof of the double images that parallax is arranged by the geometrical optics system.
Present stereopsis sheet method mainly contains polarized light approach, described in " film with put shadow equipment " published in 1992 (book number: among the ISBN7-106-00545-2/TB0065 the 24th page and the 354th page), it is to have utilized deflection device to produce the image of the mutual orthogonal polarized light of two width of cloth, pass through polarized lenses again, people's two is observed see the different separately images that parallax is arranged, thereby visually produce stereoeffect.This method needs complicated inclined to one side equipment and the Calibrator of rising, and what will be equipped with high brightness simultaneously puts the shadow equipment.95221415.6 Chinese utility model patent instructions of on January 8th, 1997 bulletin discloses again a kind ofly watches double width that the device of parallax photo is arranged with lens combination, this device be two separately the scioptics group watch different photos, reach the purpose of watching stereoeffect by adjusting eyepiece focal length.This device does not illustrate the essential features that produces stereoeffect, often can't see stereoeffect in practical operation.Also have the whole bag of tricks such as raster method and shading method in addition, all promote because of too loaded down with trivial details failing in technical complicacy and the operation.Said method all must adopt special shadow equipment of putting or the complicated sheet device of looking, and the method when watching film, TV and picture can not be general mutually.
The objective of the invention is to can provide multiple simple by this method, easy to operate, applied widely stereo vision apparatus, and every kind of device can be watched the purpose of stereopsis on film, TV, photo and picture.
To achieve these goals, the present invention has used two width of cloth that the image and the geometrical optics system of parallax are arranged, the breadth of two width of cloth images can be plane or curved surface simultaneously, can be positive image (all being positive image in the present invention if not otherwise specified) or negative image, can be size identical or different, spatially be mutually discrete, and the position of two width of cloth images can not be blocked two fully and observed the sight line of seeing each self imaging; According to two width of cloth images position relation spatially, two eyes of people directly or by the geometrical optics system are watched a width of cloth image in two width of cloth images separately, make two width of cloth images can be imaged among two of people (image and eye distance should greater than the distance of distinct vision) separately, and, the video regional extent that is imaged on image in two is separately overlapped by adjusting the position relation and the geometrical optics system of two width of cloth images.(two optical axis are constant) is imaged on the image in two separately when two video regional extents immobilize, and can press similar proportion and change in video regional extent separately.
The present invention is owing to use the eyes direct viewing, or watches image by the geometrical optics system, do not need can be applicable to watching of various images such as film, TV and picture to looked like to carry out special processing by seeing image, and is simple to operate, economical and practical.
The present invention is described in further detail below in conjunction with the drawings and specific embodiments.
Fig. 1 is the position relation of image in the video coordinate system that two width of cloth have parallax.
Fig. 2 is the video regional extent synoptic diagram of eyes when watching a width of cloth image (or geometrical optics system imaging).
Fig. 3 is the vertical view that two direct viewing two width of cloth have the parallax image.
Fig. 4 is the side view of Fig. 3.
Fig. 5 is for to watch two width of cloth that the vertical view of parallax image is arranged with a prism.
The side diagrammatic sketch of Fig. 6 for image being moved in Y direction with a prism.
Fig. 7 is for to watch two width of cloth that the vertical view of parallax image is arranged with two prism groups.
Fig. 8 watches two vertical views that the parallax image is arranged for adding two level crossings an eyes front.
Fig. 9 is eyes move image by two level crossings in Y direction a side diagrammatic sketch.
Figure 10 is for to watch two width of cloth that the vertical view of parallax image is arranged with two level crossing systems.
Figure 11 is for watching the vertical view of a positive image and a negative image with a level crossing.
Figure 12 is for to watch two width of cloth that the vertical view of the negative image of parallax is arranged with two level crossings.
Figure 13 is for to watch two width of cloth that the vertical view of parallax image is arranged with lens combination.
Figure 14 is the side view of Figure 13.
The vertical view of Figure 15 for two video regional extents being overlapped with the geometrical optics system.
Figure 16 is the adjustable prism of angle θ.
Make things convenient for the present invention that following term is described in order to narrate:
Image coordinate: with the image center is initial point o, and with when shooting two width of cloth have the image of parallax, the line of centres of two set of shots is a horizontal line; The line (from left to right) that is reflected in the image picture of producing and passes the picture central point is the x axle; With line (from top to bottom) vertical with image X-axis line in the image picture and that pass image picture central point is the y axle; To pass image picture center and the line (from image planes inwards) vertical with image planes is the z axle.See two width of cloth images among Fig. 1.
The video coordinate system: with reference to Fig. 1, be initial point O with the center of two lines of people, the extended line of two lines (from left to right) is an X-direction, is Z-direction with two direct-view directions, is Y direction vertically upward with the XOZ plane.
Video regional extent: the extended line institute area surrounded scope that eyes are watched the visual line of sight of a width of cloth complete image and passed image; Or image is by geometrical optics system imaging, the visual line of sight of its image space and eyes and the extended line institute area surrounded scope of passing this image thereof.See Fig. 2.
Fig. 1 represents the position relation of image coordinate in the video coordinate system, wherein the E1 on the X-axis, E2 point is represented two eyes of people, the image coordinate initial point of two width of cloth images represents with o1, o2 that respectively their positions in the video coordinate system are respectively an o1 (X1, Y1, Z1) and some o2 (X2, Y2, Z2); The coordinate axis of two width of cloth images is represented with x1 axle, y1 axle, z1 axle and x2 axle, y2 axle, z2 axle respectively.
Fig. 2 is the video regional extent synoptic diagram of eyes when watching image.ABCD is a width of cloth image (or image of geometrical optics system formation) among the figure, E is people's eyes, eye E is the video regional extent to the sight line (being EA, EB, EC, ED) of image periphery and the scope of extended line formation thereof, is the video zone in this scope.
Embodiment one, and Fig. 3 is the vertical view that two direct viewing two width of cloth have the parallax image.Two positions of width of cloth image center in the video coordinate system can be adjusted to o1 (X1 respectively, 0, Z1) and o2 (X2,0, Y2), and make that corresponding coordinate axis is parallel to each other between the image coordinate axle of two width of cloth images and the video coordinate axis, be X-axis //the x1 axle //the x2 axle, Y-axis //the y1 axle //the y2 axle, the Z axle //the z1 axle //the z2 axle, E1, E2 is two eyes of people, E1 watches image 1, E2 watches image 2, adjusts the center o1 of two width of cloth images, position relation on the XOZ plane of o2 in the video coordinate system, the sight line that each eye is watched each self imaging can not be blocked in the position between two width of cloth images.When the position of two width of cloth images relation overlaps two video regional extent on X-direction, it also is the (see figure 4) that overlaps on Y direction, this moment, the video regional extent of two eye E 1, E2 overlapped fully, visually can produce stereoscopic visual effect.Q is the intersection that image 2 blocks eye E 1 sight line in Fig. 3, and PQR is the plane that is parallel to the XOY face of video coordinate system; When the video regional extent that overlaps as two eye E 1 and E2 immobilized as can be seen, the position of image 1 and image 2 and big I press the similar proportion variation in fixing separately video regional extent.When the image coordinate axle of two width of cloth images and video coordinate axis can not be parallel to each other (can see that with eyes image is as the criterion), as long as the projection on the X-axis of two width of cloth images in the video coordinate system and the Y-axis is by identical ratio variation (promptly the projection on XOY plane is similar), and x1 axle, x2 axle and the y1 axle of two images, the projection on the XOY plane in the video coordinate system of y2 axle are parallel to each other, two video regional extent is overlapped.
Embodiment two, when the position that two width of cloth have the image of parallax can not satisfy Fig. 3 concerns, can be by increasing the position relation that the prism group changes image, and reach the purpose that two video zone coincides.The synoptic diagram of Fig. 5 for using a prism 3 that image position is changed, in Fig. 3, two width of cloth there be the position of image coordinate initial point in the video coordinate system of the image 1,2 of parallax to be adjusted into o1 (X1 respectively, 0, Z1) and o2 (X2,0, and make the position of 1,2 of two width of cloth images can not block the sight line that eye E 1 watches image 1 and eye E 2 to watch image 2 Z2); The image coordinate axle of two width of cloth images 1,2 and the respective coordinates axle of video coordinate axis are parallel to each other, X-axis //the x1 axle //the x2 axle, Y-axis //the y1 axle //the y2 axle, the Z axle //the z1 axle //the z2 axle, prism 3 by the front that places eye E 2 shown in the figure, is adjusted the angle theta 2 of prism, and fg is that image 2 is through the image position of prism 3 refraction backs in X-direction, image position on Y direction is equivalent to Fig. 4, and two video zone is overlapped on the direction of X-axis and Y-axis.As can be seen from Figure 5, when two video regional extents that overlap that form through prism 3 refraction backs immobilized, image 1 and the imaging of image 2 in prism can be pressed similar proportion and be changed in whole video regional extents separately.When the image coordinate axle of two width of cloth images 1,2 can not be parallel to each other with the video coordinate axis, its processing mode was identical with embodiment one.When the image coordinate initial point of two width of cloth images can not be adjusted on the XOZ face in the video coordinate system simultaneously, be o1 (X1,0, Z1), o2 (X2, Y2, Z2), prism 3 can be rotated an angle along XOY plane, or before arbitrary eyes, increase prism 4 (see figure 6)s that image can be moved along y-axis shift, image coordinate initial point o2 is imaged on the XOZ face of video coordinate system, two video zone is overlapped on Y direction.In the manner described above, as shown in Figure 7, respectively place a prism group 5,6 (image can be moved) in the front of two eyes on the X-axis of video coordinate system and Y direction, adjust the angle θ of each prism in the prism group 5,6, the video regional extent of two eyes is overlapped.
Embodiment three, utilize two level crossings to change the position relation of image.In Fig. 8, two width of cloth images 1,2 true origin can be adjusted to o1 (X1 respectively in the video coordinate system, 0, Z1) and o2 (X2,0, Z2), two width of cloth images 1, the sight line that eye E 1 watches image 1 and eye E 2 to watch image 2 can not be blocked in 2 position, image 1, respective axes in 2 image coordinate axle and the apparent coordinates system is parallel to each other, two level crossings 7,8 minute surfaces are relatively and perpendicular to the XOZ plane, wherein the minute surface of level crossing 7 is relative with eye E 2, eye E 2 is by minute surface 7,8 watch the image 2 through two secondary reflections, adjust two level crossings 7,8 position and angle can change the image space of image 2, fg is that image 2 is through plane 7, image position after 8 reflections, and two video regional extent is overlapped, two video regional extents on Y direction this moment also overlap (its coincidence system is equivalent to Fig. 4).The variation of the mirror image of image 1 and image 2 in video zone separately is similar to embodiment two.When the image coordinate axle of two width of cloth images and the respective axes between the video coordinate axis can not be parallel to each other, its processing mode was identical with embodiment one.When the image coordinate initial point of two width of cloth images can not be adjusted on the XOZ plane simultaneously, can be with level crossing group angle of direction rotation along parallel XOZ face, or increase by one group of level crossing group (as shown in Figure 9) that image can be moved along Y direction, adjust the position and the angle of 9,10 of level crossings, gn is the image position after image 2 reflects through level crossing 9,10, the initial point of image coordinate is imaged on the XOZ plane of visual image coordinate system, two eye E 1 and E2 can be overlapped at the video regional extent on Y direction.According to the same manner, respectively add a level crossing system 11,12 (image can be moved) on the X-axis of video coordinate system and Y direction in the front of two eyes, as shown in figure 10, adjust level crossing system 11,12 two video zone is overlapped.
Embodiment four, and the position that utilizes a level crossing to change a negative image concerns, and its image upset is positive shadow.In Figure 11, image 1 is positive image, image 2 is negative image, the image coordinate initial point of two width of cloth images is adjusted into o1 (X1 in the video coordinate system, Y1, Z1) and o2 (X2, Y2, Z2), Y1=Y2 wherein, the respective axes of the coordinate axis of image coordinate and video coordinate system is parallel to each other, be X-axis //the x1 axle //the x2 axle, Y-axis //the y1 axle //the y2 axle, the Z axle //the z1 axle //the z2 axle, level crossing 13 places eye E 2 preceding and vertical with the XOZ face, eye E 1 direct viewing image 1, eye E 2 is watched image 2 through primary event by level crossing 13, adjusts level crossing 13 (level crossing is rotated along the XOY direction), and fg is the image position of image 2 after through level crossings 13 reflections, and two video regional extent overlapped on X-direction, this moment, its video zone on Y-axis also was the (see figure 4) that overlaps.The mirror image of image 1 and image 2 can be identical with embodiment two in the variation in the video regional extent separately.When the respective axes between each and the video coordinate system of the image coordinate of image 1,2 can not be parallel to each other, as long as two projections of width of cloth image on X-axis and Y direction change by same ratio, and the projection on XOY plane is similar with a certain straight line mirror image symmetry that is parallel to Y-axis, just can be in the manner described above two video regional extent be overlapped.After the same method, respectively add a level crossing 14 and 15 two eyes fronts, with reference to Figure 12, wherein image 1 and image 2 all are anti-image, watch image 1 with eye E 1 by level crossing 15, watch image 2 with eye E 2 by level crossing 14, adjust two level crossings in a manner described, two video regional extent can be overlapped.In embodiment one to four, when two width of cloth images, 1,2 equal and opposite in directions, and eyes are when being equated by the distance between the seeing image picture, and in coincidence place of video scope, the position of two width of cloth images coincides together.
Embodiment five, utilize lens combination to change the size of image.In Figure 13,14, the image origin of two width of cloth images 1,2 is adjusted into o1 (X1 in the video coordinate system, 0, Z1) and o2 (X2,0, Z2), the position that two width of cloth images are 1,2 can not be blocked eye E 1 and watched image 1 and eye E 2 to watch image 2, and each is parallel to each other image 1,2 with the respective shaft of video coordinate system; Image 1 is watched by eye E 1 scioptics system 16, eye E 2 direct viewing images 2, and magnification and the position between image of adjusting lens combination 16 concern that ab, bc are the image position through the lens combination imaging, and two video regional extent is overlapped.As can be seen, when two video zone immobilized, image 1 all can be pressed the similar proportion variation through the imaging and the image 2 of lens combination in video regional extent separately.When corresponding can not being parallel to each other of the image coordinate axle of two width of cloth images 1,2 and video coordinate system, can handle according to the mode of embodiment one.According to the same manner, before eye E 1, E2, respectively place a lens combination, adjust the magnification of each lens combination, two video regional extent is overlapped.
Embodiment six, utilize parallel plane glass with the image translation.Respectively add a parallel plane glass one or two eyes fronts, adjust angle and the relation of the position between two width of cloth images between glass and eyes, two video regional extent can be overlapped.
Embodiment seven, position relation and actual needs according to image, the different modes of above-mentioned six embodiment can be used in combination mutually, see Figure 15, use prism in each eyes front, level crossing, the optical system 17 of lens combination and parallel plane glass combination, 18, each system can be any or several combination (one of them system can without any optical element) among the embodiment one to six, and according to the optical element in the method Adjustment System of embodiment one to five, can arbitrarily change two size and Orientations of observing the video regional extent of seeing image like this, make two more convenient the overlapping of video regional extent.When two video regional extents immobilized, two width of cloth images 1,2 passed through the imaging of optical system separately, all can press similar proportion and change in video regional extent separately.In embodiment one to seven, when two width of cloth images 1,2 are similar curved surface, two video regional extent is overlapped.In embodiment one to seven, in each eyes front or geometrical optics system, add field stop, make each eye of people can only see the image that need watch, and do not disturbed by other image.
Adjust the angle theta of prism for convenience, referring to Figure 16, the present invention has designed the adjustable prism of a kind of angle theta.Be that two of prism look face HIJK and STUV makes with the smooth transparent material of dull and stereotyped hard, all the other each faces use scalable encapsulant, inside is full of transparency liquid, as long as change the length on HS, IT, JU and any one side of KV or several limits, all can change two angle theta of looking face during operation.
Claims (10)
1. the present invention relates to a kind of method and apparatus of watching stereopsis, especially a kind of device of watching two width of cloth that the parallax image is arranged, it comprises that the geometrical optics system and two width of cloth have the image of parallax, it is characterized in that: two eyes of people directly or by the geometrical optics system are watched a width of cloth image in two width of cloth images separately, by adjusting the position relation and the geometrical optics system of two width of cloth images, two video regional extent is overlapped; When the video regional extent that overlaps when two eyes immobilized simultaneously, the position and the size that are imaged on the image in two separately can change by similar proportion in video regional extent separately.
2. the method and apparatus of watching stereopsis according to claim 1, it is characterized in that: described geometrical optics system is by optical elements sets such as prism, level crossing, lens combination and parallel plane glass, or is made up of one of them optical element or several optical element; Described two width of cloth have the image of parallax can be plane or curved surface simultaneously, can be positive image or negative image, can be that size is identical or different, spatially two width of cloth images be discrete mutually, and the position of two width of cloth images relation can not be blocked the sight line that each eye is watched each self imaging fully; An eyes front or simultaneously respectively add a geometrical optics system two eyes fronts, make eye E 1 can see image (1), eye E 2 can be seen image (2), adjusts the position relation between optical system and two width of cloth images (1,2), and two video regional extent is overlapped.
3. the method and apparatus of watching stereopsis according to claim 1, it is characterized in that: the image that parallax is arranged with two direct viewing two width of cloth, each eye is watched a width of cloth image, eye E 1 is watched image (1), eye E 2 is watched image (2), adjust the position relation of two width of cloth images (1,2), the video regional extent of two E1, E2 is overlapped.
4. the method and apparatus of watching stereopsis according to claim 2, it is characterized in that: an eyes front or simultaneously add a prism group separately two eyes fronts, each prism group can be made up of one or more prisms, two eyes directly or by the prism group are watched a width of cloth image separately, eye E 1 is watched image (1), eye E 2 is watched image (2), adjust the position relation of the angle and two width of cloth images of each prism in the prism group, two video regional extent is overlapped.
5. the method and apparatus of watching stereopsis according to claim 2, it is characterized in that: an eyes front or simultaneously respectively add two level crossings two eyes fronts, the minute surface of two level crossings is relative, one of them minute surface is relative with eyes, eyes are watched image through two secondary reflections by two level crossings, the position relation of the position between the adjustment level crossing and angle and two width of cloth images, make eye E 1 can see image 1, eyes 2 can be seen image 2, and two video regional extent is overlapped.
6. the method and apparatus of watching stereopsis according to claim 2 is characterized in that: in employed two width of cloth images, wherein a width of cloth or two width of cloth are negative image simultaneously; An eyes front or simultaneously respectively add a level crossing two eyes fronts, eyes are watched negative image by level crossing, adjust position and angle between level crossing and eyes, and the position of two width of cloth images, make eye E 1 can see image (1), eye E 2 can be seen image (2), and two video regional extent is overlapped.
7. the method and apparatus of watching stereopsis according to claim 2, it is characterized in that: an eyes front or simultaneously respectively add a lens combination two eyes fronts, each lens combination all is made up of one or more lens, make eye E 1 can see image 1, eye E 2 can be seen image 2, adjust the magnification of lens combination and the position of two width of cloth images, two video regional extent is overlapped.
8. the method and apparatus of watching stereopsis according to claim 2, it is characterized in that: an eyes front or simultaneously respectively add a parallel plane glass two eyes fronts, eye E 1 is watched image (1), eye E 2 is watched image (2), adjust the angle of parallel plane glass and eyes, two video regional extent is overlapped.
9. according to claim 1,2,3,4,5,6, the 7 or 8 described method and apparatus of watching stereopsis, it is characterized in that: on every eyes front or each optical system, add a field stop, a width of cloth image that every eyes can only be seen to watch.
10. adjustable prism, it comprises the smooth transparent material of dull and stereotyped hard, transparency liquid and scalable encapsulant, it is characterized in that: look face for two and form by the smooth transparent material of dull and stereotyped hard, all the other each faces are interconnected by scalable encapsulant, inside is full of transparency liquid, and the length on HS, IT, JU and each limit of KV can arbitrarily be adjusted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01130830 CN1407367A (en) | 2001-08-27 | 2001-08-27 | Method and device for stereoscopic vision of double images |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01130830 CN1407367A (en) | 2001-08-27 | 2001-08-27 | Method and device for stereoscopic vision of double images |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1407367A true CN1407367A (en) | 2003-04-02 |
Family
ID=4670180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01130830 Pending CN1407367A (en) | 2001-08-27 | 2001-08-27 | Method and device for stereoscopic vision of double images |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1407367A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1788497B (en) * | 2003-04-17 | 2010-05-12 | 索尼株式会社 | 3-dimensional view image processing device, 3-dimensional view image providing method, and image display method |
| CN1798351B (en) * | 2004-12-17 | 2011-04-13 | 株式会社日立显示器 | Display device and game machine with the display device |
-
2001
- 2001-08-27 CN CN 01130830 patent/CN1407367A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1788497B (en) * | 2003-04-17 | 2010-05-12 | 索尼株式会社 | 3-dimensional view image processing device, 3-dimensional view image providing method, and image display method |
| CN1798351B (en) * | 2004-12-17 | 2011-04-13 | 株式会社日立显示器 | Display device and game machine with the display device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10663626B2 (en) | Advanced refractive optics for immersive virtual reality | |
| CN110401829B (en) | Naked eye 3D display device and display method thereof | |
| CN202267785U (en) | Naked eye three-dimensional display structure for automatically tracking human eye position | |
| US7898568B2 (en) | Image display system | |
| JP2001066547A (en) | Stereoscopic display device | |
| CN104216133B (en) | A kind of vision area depth adjustable bore hole 3D display methods, device and system | |
| WO2016086483A1 (en) | Display capable of switching between 2d and 3d modes, and control method therefor | |
| Sasagawa et al. | P‐51: Dual Directional Backlight for Stereoscopic LCD | |
| CN106526878B (en) | Multi-dimensional free 3 d display device | |
| JP5942150B2 (en) | Image display device | |
| Guo et al. | Immersive autostereoscopic display based on curved screen and parallax barrier | |
| CN111308698B (en) | Directional display screen, induction type three-dimensional display device and display method thereof | |
| CN1407367A (en) | Method and device for stereoscopic vision of double images | |
| CN110275311B (en) | Perspective three-dimensional display device and three-dimensional display system based on liquid crystal lens array | |
| CN209879155U (en) | Stereoscopic projection device based on double gratings | |
| CN207799252U (en) | A kind of virtual reality glasses and 3D display system | |
| KR20010109814A (en) | Display apparatus for management 3-dimensional image | |
| CN203422528U (en) | Projection-type naked-eye stereo display system | |
| CN2602396Y (en) | Double screen video stereopsis device | |
| CN201159797Y (en) | Automatic stereo imaging display equipment | |
| CN115016137B (en) | Three-dimensional projection display system with balanced resolution | |
| Dong et al. | P‐68: Dual‐Side Floating Autostereoscopic 3D Display Based on Micro‐Prism Array and Lenticular Sheet | |
| CN1190683C (en) | Viewing device for forming stereo image by plane mirror | |
| CN221326862U (en) | Aerial imaging device suitable for 60 inch and above image interaction | |
| CN110275310B (en) | Orthographic projection type three-dimensional display device and three-dimensional display system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |