CN107167918B - Plane symmetry imaging optical plate - Google Patents
Plane symmetry imaging optical plate Download PDFInfo
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- CN107167918B CN107167918B CN201710566201.1A CN201710566201A CN107167918B CN 107167918 B CN107167918 B CN 107167918B CN 201710566201 A CN201710566201 A CN 201710566201A CN 107167918 B CN107167918 B CN 107167918B
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- 239000000463 material Substances 0.000 claims description 13
- 239000003292 glue Substances 0.000 claims description 4
- 239000000945 filler Substances 0.000 claims description 2
- 125000006850 spacer group Chemical group 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000003754 machining Methods 0.000 abstract 2
- 238000010586 diagram Methods 0.000 description 12
- PCTMTFRHKVHKIS-BMFZQQSSSA-N (1s,3r,4e,6e,8e,10e,12e,14e,16e,18s,19r,20r,21s,25r,27r,30r,31r,33s,35r,37s,38r)-3-[(2r,3s,4s,5s,6r)-4-amino-3,5-dihydroxy-6-methyloxan-2-yl]oxy-19,25,27,30,31,33,35,37-octahydroxy-18,20,21-trimethyl-23-oxo-22,39-dioxabicyclo[33.3.1]nonatriaconta-4,6,8,10 Chemical compound C1C=C2C[C@@H](OS(O)(=O)=O)CC[C@]2(C)[C@@H]2[C@@H]1[C@@H]1CC[C@H]([C@H](C)CCCC(C)C)[C@@]1(C)CC2.O[C@H]1[C@@H](N)[C@H](O)[C@@H](C)O[C@H]1O[C@H]1/C=C/C=C/C=C/C=C/C=C/C=C/C=C/[C@H](C)[C@@H](O)[C@@H](C)[C@H](C)OC(=O)C[C@H](O)C[C@H](O)CC[C@@H](O)[C@H](O)C[C@H](O)C[C@](O)(C[C@H](O)[C@H]2C(O)=O)O[C@H]2C1 PCTMTFRHKVHKIS-BMFZQQSSSA-N 0.000 description 7
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Elements Other Than Lenses (AREA)
Abstract
The invention provides a plane symmetrical imaging optical plate, which comprises a first light-permeable substrate and a second light-permeable substrate which are arranged from top to bottom, wherein the first substrate is provided with a plurality of first reflecting surfaces, the second substrate is provided with a plurality of second reflecting surfaces orthogonal to the first reflecting surfaces, and divergent light reaches the upper part of the first substrate after being reflected by the first reflecting surfaces and the second reflecting surfaces, and is subjected to space convergence imaging above the first substrate. According to the invention, the twice reflection is realized through the rectangular blocks or the rectangular holes which are arranged on the first substrate and the second substrate and are staggered, so that the pixel density is higher than that of the similar technology, the requirement on the right-angle machining precision of the rectangular blocks or the rectangular holes is lower, and the machining difficulty and the overall manufacturing cost are reduced only through the reflection of the side walls.
Description
Technical Field
The invention relates to the technical field of optical imaging elements, in particular to a plane symmetrical imaging optical plate.
Background
In a planar symmetric imaging optical element of the related art, which is mainly applied to a display device, divergent light emitted from a light-emitting object or an optically irradiated object is transmitted through an optical plate, reflected twice in the optical plate, and then focused to an image at a planar symmetric position with respect to the optical plate having a positional relationship with the light-emitting object or the optically irradiated object, wherein a micromirror array in which a plurality of concave unit optical elements or convex unit optical elements having "two mirror surfaces orthogonal to each other" (a pair of adjoining light reflecting surfaces constituting a right angle, i.e. "corner reflectors") arranged in an array form has been attracting attention in recent years. In this micromirror array, the "dihedral corner reflector array" is also a member utilizing the following actions: when light incident from one side of the array passes through the element surface (substrate), the light is reflected twice between a pair of light reflecting surfaces constituting each unit optical element (corner reflector), and the light reflected twice (passing light) is imaged at a spatial position on the opposite side of the array (surface symmetry with respect to the element surface).
However, the applicant found that the above-described structure has a low pixel density and cannot meet the higher pixel requirements because the light is directly imaged after being reflected by the concave unit optical element or the convex unit optical element, and that the above-described structure has a relatively high manufacturing cost because the processing process requirements for the concave unit optical element or the convex unit optical element are also high, which is one of the reasons why the above-described structure has not been popularized. Therefore, how to provide an optical plate with high pixel density, simpler processing and lower manufacturing cost is a technical problem to be solved by those skilled in the art.
In view of this, the present invention has been made.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems in the related art to some extent.
To this end, the present invention aims to propose a plane-symmetric imaging optical plate. The specific technical scheme is as follows:
a plane symmetric imaging optical plate comprising: the light-permeable first substrate and the second substrate are arranged from top to bottom, the first substrate is provided with a plurality of first reflecting surfaces, the second substrate is provided with a plurality of second reflecting surfaces orthogonal to the first reflecting surfaces, and divergent light reaches the upper part of the first substrate after being reflected by the first reflecting surfaces and the second reflecting surfaces, and is converged and imaged in the space above the first substrate.
According to the plane symmetrical imaging optical plate provided by the invention, the rectangular blocks or the rectangular holes which are arranged on the first substrate and the second substrate and are staggered are used for realizing twice reflection, so that the pixel density is higher than that of the similar technology, the processing precision requirement on the right angles of the rectangular blocks or the rectangular holes is lower, and the processing difficulty and the overall cost are reduced only through the reflection of the side walls.
According to one example of the invention, the first substrate is provided with a plurality of rectangular blocks and/or rectangular holes, the second substrate is provided with a plurality of rectangular blocks and/or rectangular holes, the outer side wall of each rectangular block/the inner side wall of each rectangular hole is provided with a reflective surface perpendicular to the substrate, and the rectangular blocks/the rectangular holes on the first substrate are staggered with the reflective surfaces of the rectangular blocks/the rectangular holes of the second substrate.
According to an example of the present invention, a filler of a light-transmitting material is provided between the rectangular blocks and in the rectangular hole.
According to an example of the present invention, a transparent spacer is provided between the first substrate and the second substrate.
According to an example of the present invention, at least one plane mirror is disposed above the first substrate, and the plane mirror is a partially transmissive and partially reflective or mirror structure.
According to an example of the present invention, a first display screen is disposed under the second substrate.
According to an example of the present invention, a second display screen is disposed above the first substrate, and a partially transmissive and partially reflective structure is disposed on the second display screen.
According to an example of the present invention, the first reflecting surface and/or the second reflecting surface are/is formed by stacking a plurality of layers of reflecting structures.
According to an example of the present invention, the first reflecting surface, the second reflecting surface is coated or polished.
According to an example of the present invention, the first substrate and the second substrate are bonded by ultraviolet glue, or the first substrate and the second substrate are fixed by transparent or translucent material encapsulation.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
Fig. 1 is a schematic structural view of a plane-symmetric imaging optical plate of the present embodiment;
fig. 2 is another structural schematic diagram of the plane-symmetric imaging optical plate of the present embodiment;
fig. 3 is a schematic view of still another structure of the plane-symmetric imaging optical plate of the present embodiment;
fig. 4 is a plan view (one) of the first substrate and the second substrate of the plane-symmetric imaging optical plate of the present embodiment;
fig. 5 is a plan view (two) of the first substrate and the second substrate of the plane-symmetric imaging optical plate of the present embodiment;
fig. 6 is a schematic view of the use state of the plane-symmetric imaging optical plate of the present embodiment;
fig. 7 is a schematic view showing a use state of an optical plate having a first display screen and a second display screen of the plane-symmetric imaging optical plate of the present embodiment;
fig. 8 is an optical path diagram (one) of the plane-symmetric imaging optical plate of the present embodiment;
fig. 9 is an optical path diagram (two) of the plane-symmetric imaging optical plate of the present embodiment;
fig. 10 is an optical path diagram (iii) of the plane-symmetric imaging optical plate of the present embodiment;
fig. 11 is an optical path diagram (fourth) of the plane-symmetric imaging optical plate of the present embodiment;
fig. 12 is an optical path diagram (fifth) of the plane-symmetric imaging optical plate of the present embodiment;
fig. 13 is a schematic diagram (one) of the number of pixels per unit area of the plane-symmetric imaging optical plate of the present embodiment;
fig. 14 is a schematic diagram (two) of the number of pixels per unit area of the plane-symmetric imaging optical plate of the present embodiment;
fig. 15 is a schematic view of the number of pixels per unit area of the plane-symmetric imaging optical plate of the present embodiment (iii);
fig. 16 is a schematic view (fourth) of the number of pixels per unit area of the plane-symmetric imaging optical plate of the present embodiment;
fig. 17 is a schematic diagram (fifth) of the number of pixels per unit area of the optical plate of the related art;
fig. 18 is an optical path diagram (sixth) of the plane-symmetric imaging optical plate of the present embodiment;
fig. 19 is an optical path diagram (seventh) of the plane-symmetric imaging optical plate of the present embodiment;
fig. 20 is a rectangular aperture fusion diagram of the plane-symmetric imaging optical plate of the present embodiment.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
The planar symmetrical imaging optical plate according to the present invention is described in detail below with reference to the accompanying drawings.
Referring to fig. 1-19, a plane-symmetric imaging optical plate of this embodiment includes a first substrate above and a second substrate below the first substrate, where the first substrate and the second substrate are provided with a plurality of first reflective surfaces and second reflective surfaces orthogonal to each other as shown in fig. 8-12, the first reflective surfaces are provided on the first substrate, the second reflective surfaces are provided on the second substrate, the first reflective surfaces and the second reflective surfaces form a first optical path component, the first reflective surfaces are ABCD surfaces in the drawing, the second reflective surfaces are EFGH surfaces in the drawing, and it is known that divergent light emitted from a light emitting point or a light reflecting point is reflected from the ABCD surfaces (the reflective point is M) to the EFGH surfaces for secondary reflection (the reflective point is N), and then enters into a second optical path component described below. Advantageously, the first reflective surface and the second reflective surface may be formed of a multi-layer structure, for example by superimposing two or more layers of material to form the ABCD surface. The multi-layer superposition forms a surface mainly because each square hole or square block has too large depth-to-width ratio and is not easy to process, and the two identical structures can be superposed together to form a surface. The imaging of the optical plate of this embodiment is shown in fig. 18 and 19, in which G is the emission point of the divergent light, G 'is the imaging point (the convergence point of the divergent light), the display screen can be regarded as being composed of a plurality of emission points G, and the floating display screen can be regarded as being composed of a plurality of imaging points G'.
Specifically, in this embodiment, the first substrate and the second substrate are combined in multiple manners, for example, as shown in fig. 1, the plate surfaces of the second substrate and the first substrate are connected, which may be integrally connected, so as to facilitate processing, or may be connected through an intermediate structure (such as glue, etc.), where the rectangular block of the first substrate is located above the combination of the two, and the rectangular block of the second substrate is located below the combination of the two.
For example, as shown in fig. 2, the transparent rectangular blocks of the first substrate and the second substrate are connected, the surfaces of the two substrates are respectively located on the upper and lower sides of the combination of the two substrates, the side walls of the rectangular blocks of the first substrate and the rectangular blocks of the second substrate are reflective surfaces perpendicular to the plane of the substrates, the rectangular blocks of the first substrate and the rectangular blocks of the second substrate can be in direct contact, a certain space can also be reserved between the rectangular blocks of the first substrate and the rectangular blocks of the second substrate, or through glass intervals, the rectangular blocks of the first substrate and the rectangular blocks of the second substrate are alternately distributed, and more specifically, the shape center of one rectangular block or rectangular hole of the first substrate is located at the middle position between the four rectangular blocks or rectangular holes of the second substrate.
For example, in fig. 3, the first substrate is made of a transparent material or an opaque material, and is provided with a plurality of rectangular holes, and similarly, the second substrate is also provided with a plurality of rectangular holes, the rectangular holes of the first substrate and the side walls of the rectangular holes of the second substrate are reflective surfaces, a certain space is reserved between the rectangular holes of the first substrate and the rectangular holes of the second substrate, or the rectangular holes of the first substrate and the rectangular holes of the second substrate are alternately arranged through glass intervals. It should be noted that, the rectangular hole may penetrate through the surface of the first substrate or the second substrate to form a through hole structure, so that the materials of the first substrate and the second substrate may be opaque materials.
Of course, other combinations of the first substrate and the second substrate are also possible, for example, the first substrate is provided with a rectangular block, the second substrate is provided with a rectangular hole, for example, the first substrate is provided with a rectangular block, the second substrate is provided with a rectangular block, for example, the first substrate is provided with a rectangular block and a rectangular hole, the first substrate is also provided with a rectangular block and a rectangular hole, and the two staggered structures can be separately supported by a transparent plate, and the transparent baffle can be independently present or combined with part or all of the upper and lower staggered structures (all not shown in the figure). The above structures are included in the scope of the present invention. Preferably, the size of the rectangular hole in this embodiment is 0.2mm, the edge distance of the hole is 0.05mm, and the rectangular block can be designed in this way, and the structural proportion of the rectangular block or the rectangular hole can be limited, for example, the ratio of the height to the width of the rectangular block is limited to 1-1.5, and other proportions capable of obtaining good effects are within the protection scope of the invention.
In addition, as shown in fig. 20, square holes or square blocks may be mutually fused and then staggered, and various fusion modes are provided, and the illustration is only for the purpose of illustration, and the fusion mode of the invention is not limited.
The design can enable the light to be imaged after being reflected by a plurality of reflecting surfaces which are arranged in a staggered way, so that the imaging pixel density is higher, and the simulation degree is superior to the effect of direct imaging of concave unit optical elements or convex unit optical elements in the background art. As shown in fig. 13 to 16, in which fig. 13 shows the number of unit area pixels staggered after filling the rectangular hole or rectangular block structure side with a material of similar refractive index in the case of a transparent substrate, fig. 14 shows the number of unit area pixels staggered in the case of an opaque substrate, fig. 15 shows the number of unit area pixels staggered in another manner after filling the rectangular hole or rectangular block structure side with a material of similar refractive index in the case of a transparent substrate, fig. 16 shows the number of unit area pixels staggered in another manner in the case of an opaque substrate, and fig. 17 shows the number of unit area pixels of an optical plate of the prior art, it can be known that the imaging density of the optical plate of the present embodiment is superior to that of the structure of the prior art.
Advantageously, as shown in fig. 6, the present embodiment has a first display screen 1 disposed below the optical plate for displaying a basic image, and an imaging point or an imaging pattern is at B in fig. 6, and as shown in fig. 7, a second display screen 2 may be disposed on the optical plate at an angle to the optical plate, and a transflective film (or other structures having dual functions of light reflection and transmission) may be attached to the second display screen, so that an original imaging position (shown in fig. 18) is changed, and a floating imaging (B in the figure is an imaging position) may be realized, with a floating display effect.
Advantageously, the present embodiment may also be filled with a substance, for example, a liquid or solid, which may be a liquid or solid having the same refractive index as the substrate or a different refractive index from the substrate, such as a photo-curable resin, a high refractive index organic substance, or the like, in the rectangular holes or in the gaps of the rectangular blocks. After filling, the optical plate can be enhanced in mechanical strength, the pixel density can be increased, and the display brightness can be enhanced. Filling with a substance of the same refractive index or similar refractive index can increase the pixel density without affecting the imaging quality, as shown in fig. 13.
Advantageously, one or more mirrors may also be incorporated in the optical structure, which mirrors may be partially transmissive and partially reflective. Is used for adjusting the imaging visual angle and the imaging position so as to achieve better effect. A partially transmissive partially reflective mirror may be used as part of the display screen to achieve imaging near the display screen. The position of the point in the example can place the display screen at a certain angle, especially the 3D display screen, can combine the camera to carry out the people's eye and catch and make the people's eye see stable 3D figure all the time and combine gesture capture module to carry out the interaction, promotes user experience.
Advantageously, the first reflecting surface, the second reflecting surface and the reflecting surface can be coated or polished to improve the reflectivity.
Specifically, the first substrate and the second substrate of the embodiment may be bonded by ultraviolet glue, or the first substrate and the second substrate may be fixed by transparent or semitransparent material encapsulation. Of course, other connection methods may be used, which are not listed here.
The working procedure of the plane-symmetric imaging optical plate of the present embodiment is explained below:
as shown in fig. 8 to 12, the plane ABCD of the present embodiment is orthogonal to the plane EFGH, and divergent light of the light emitting point or the light reflecting point S is reflected by the plane ABCD to reach the plane EFGH, and reflected 2 times, the 2 times reflected light passes through the plane symmetrical position of S with respect to the optical plate. The divergent light of S passes through a plurality of rectangular blocks or rectangular hole structures, and is converged (imaged) at symmetrical positions with respect to the optical plate, where M is the intersection point of the divergent light of S and the plane ABCD, and N is the intersection point of the light reflected by the plane ABCD and the plane EFGH.
In summary, according to the planar symmetric imaging optical plate provided by the embodiment, two reflections are realized through the rectangular blocks or rectangular holes which are arranged on the first substrate and the second substrate and are staggered, so that the pixel density is higher than that of the similar technology, the requirement on the processing precision of right angles of the rectangular blocks or rectangular holes is lower, and the processing difficulty and the overall cost are reduced only through the reflection of the side walls.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "plurality" is two or more unless specifically defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.
Claims (9)
1. A plane-symmetric imaging optical plate, comprising:
a first substrate and a second substrate which are arranged from top to bottom and can transmit light, wherein the first substrate is provided with a plurality of first reflecting surfaces, the second substrate is provided with a plurality of second reflecting surfaces which are orthogonal with the first reflecting surfaces,
the divergent light reaches the upper part of the first substrate after being reflected by the second reflecting surface and the first reflecting surface, and is converged and imaged in the space above the first substrate;
the first substrate is provided with a plurality of rectangular blocks and/or rectangular holes, the second substrate is provided with a plurality of rectangular blocks and/or rectangular holes, the outer side wall of each rectangular block and/or the inner side wall of each rectangular hole are/is provided with reflecting surfaces perpendicular to the substrate, the rectangular blocks and/or rectangular holes on the first substrate and the rectangular blocks and/or rectangular holes on the second substrate are/is arranged in a staggered manner so as to form a rectangular up-down staggered structure in the overlapping area of the rectangular blocks and/or rectangular holes on the first substrate and the rectangular blocks and/or rectangular holes on the second substrate, the cross section area of the up-down staggered structure is smaller than the rectangular cross section area of the rectangular blocks and/or rectangular holes, and divergent light reaches the upper side of the first substrate after being reflected by the second reflecting surfaces and the first reflecting surfaces on each up-down staggered structure, and is focused and imaged in the upper space of the first substrate.
2. The planar symmetric imaging optical plate of claim 1, wherein a filler of light-transmitting material is disposed between the rectangular blocks and within the rectangular holes.
3. The planar symmetric imaging optical plate of claim 1, wherein a transparent spacer is disposed between the first substrate and the second substrate.
4. The planar symmetric imaging optical plate of claim 1, wherein at least one planar mirror is disposed above the first substrate, the planar mirror being a partially transmissive partially reflective or specular structure.
5. The planar symmetric imaging optical plate of claim 1, wherein a first display screen is disposed under the second substrate.
6. The planar symmetric imaging optical plate of claim 5, wherein a second display screen is disposed above the first substrate, and a partially transmissive and partially reflective structure is disposed on the second display screen.
7. The planar symmetric imaging optical plate of any of claims 1-6, wherein the first reflective surface and/or the second reflective surface are formed by stacking a plurality of reflective structures.
8. The planar symmetric imaging optical plate of any of claims 1-6, wherein said first reflective surface, second reflective surface is coated or polished.
9. The planar symmetric imaging optical plate of any of claims 1-6, wherein said first substrate and said second substrate are bonded by uv glue or said first substrate and said second substrate are encapsulated and fixed by a transparent or translucent material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710566201.1A CN107167918B (en) | 2017-07-12 | 2017-07-12 | Plane symmetry imaging optical plate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710566201.1A CN107167918B (en) | 2017-07-12 | 2017-07-12 | Plane symmetry imaging optical plate |
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| Publication Number | Publication Date |
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| CN107167918A CN107167918A (en) | 2017-09-15 |
| CN107167918B true CN107167918B (en) | 2023-12-19 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7152019B2 (en) * | 2017-01-30 | 2022-10-12 | 株式会社パリティ・イノベーションズ | Optical element and image display device using the same |
| CN107577060A (en) * | 2017-10-11 | 2018-01-12 | 陈科枫 | Big visual angle air-borne imagery equipment |
| CN112180478B (en) * | 2020-09-03 | 2022-03-18 | 核桃智能科技（常州）有限公司 | Air imaging lens |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101405627B (en) * | 2006-03-23 | 2010-12-15 | 独立行政法人情报通信研究机构 | Imageing element and display |
| JP5392612B2 (en) * | 2009-09-28 | 2014-01-22 | スタンレー電気株式会社 | Display device |
| JP5728748B2 (en) * | 2011-05-25 | 2015-06-03 | 国立研究開発法人情報通信研究機構 | Reflector array optical device and display device using the same |
| CN207148423U (en) * | 2017-07-12 | 2018-03-27 | 陈科枫 | Plane is symmetrically as optical sheet |
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