CN116256824A - Optical waveguide array structure for aerial imaging - Google Patents
Optical waveguide array structure for aerial imaging Download PDFInfo
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- CN116256824A CN116256824A CN202111501015.2A CN202111501015A CN116256824A CN 116256824 A CN116256824 A CN 116256824A CN 202111501015 A CN202111501015 A CN 202111501015A CN 116256824 A CN116256824 A CN 116256824A
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B3/00—Simple or compound lenses
- G02B3/0006—Arrays
- G02B3/0037—Arrays characterized by the distribution or form of lenses
- G02B3/0062—Stacked lens arrays, i.e. refractive surfaces arranged in at least two planes, without structurally separate optical elements in-between
- G02B3/0068—Stacked lens arrays, i.e. refractive surfaces arranged in at least two planes, without structurally separate optical elements in-between arranged in a single integral body or plate, e.g. laminates or hybrid structures with other optical elements
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
- G02B30/20—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes
- G02B30/26—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the autostereoscopic type
- G02B30/27—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the autostereoscopic type involving lenticular arrays
- G02B30/29—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the autostereoscopic type involving lenticular arrays characterised by the geometry of the lenticular array, e.g. slanted arrays, irregular arrays or arrays of varying shape or size
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
- G02B30/50—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images the image being built up from image elements distributed over a 3D volume, e.g. voxels
- G02B30/56—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images the image being built up from image elements distributed over a 3D volume, e.g. voxels by projecting aerial or floating images
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Abstract
The invention relates to an optical waveguide array structure for aerial imaging, which comprises a substrate 1 and a substrate 2, wherein a plurality of curve through holes are respectively arranged on the substrate 1 and the substrate 2, the inner walls of the curve through holes are provided with reflecting surfaces, and the reflecting surfaces of the inner walls of the curve through holes in the substrate 1 are orthogonally arranged with the reflecting surfaces of the inner walls of the curve through holes in the substrate 2. According to the present invention, the horizontal visibility angle of the floating real image can be increased, even to approximately 180 degrees. And the arrangement reduces afterimage generated by reflection of light rays in the optical waveguide array structure, improves imaging quality, is beneficial to improving viewing experience of users, and can be widely applied to various scenes.
Description
Technical Field
The invention relates to the field of optics, in particular to an optical waveguide array structure for aerial imaging.
Background
With the development of imaging display technology, the requirements on imaging characteristics are continuously increasing. The air imaging technology is that light emitted from an object to be projected, which is disposed on one side of an optical lens, is specularly reflected in the optical lens and simultaneously transmitted through the optical lens plane, so that a mirror image of the object to be projected is imaged as a real image in a space on the other side of the optical lens, and by forming an image of an object in air, people can see the image of the object without assistance such as VR glasses, thereby providing a strong visual shock effect, and receiving attention and pursuit of more people. However, there are some drawbacks in the conventional imaging method, such as that there is an oblique residual image on each of the left and right sides of the solid image, the horizontal viewing angle of the floating solid image is small (about ±30 degrees), and so on.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide an optical waveguide array structure for aerial imaging, which can increase the horizontal visual angle of a floating real image without generating residual images. Solves the defects of the prior art.
In order to achieve the above purpose, the technical scheme of the invention is as follows:
the optical waveguide lens comprises a substrate 1 and a substrate 2, wherein a plurality of curve through holes are respectively formed in the substrate 1 and the substrate 2, reflecting surfaces are arranged on the inner walls of the curve through holes, and the reflecting surfaces of the inner walls of the curve through holes in the substrate 1 are orthogonally arranged with the reflecting surfaces of the inner walls of the curve through holes in the substrate 2.
The curved through holes on the substrate 1 and the substrate 2 are vertical or nearly vertical or one surface is vertical and the other surface is inclined to the substrate surface.
The curved through holes on the substrate 1 and the substrate 2 are arranged in parallel or obliquely relative to the side surfaces of the substrates.
The curved through holes in the substrate 1 and the substrate 2 are long and/or short and/or wide and/or narrow. The widths of the curved through holes on the substrate 1 and the substrate 2 are reduced from the center to the edge of the substrate or are increased.
One surface of the curved through holes on the substrate 1 and the substrate 2 is provided with a reflecting surface, and the other surface is provided with a non-reflecting surface or is provided with a reflecting surface.
The substrate 1 and the substrate 2 are transparent or opaque, and the curved through holes on the substrate 1 and the substrate 2 are partial through holes and partial non-through holes.
The reflecting surface of the inner wall of the curved through hole in the substrate 1 and the reflecting surface of the inner wall of the curved through hole in the substrate 2 are arranged perpendicular to each other or not.
An optical waveguide lens comprises a substrate 1 and a substrate 2, wherein a plurality of curve holes or holes are respectively formed in the substrate 1 and the substrate 2, reflecting surfaces are arranged on the inner walls of the curve holes and the inner walls of the holes, and the reflecting surfaces of the inner walls of the curve holes or the inner walls of the holes in the substrate 1 are orthogonally arranged with the reflecting surfaces of the inner walls of the curve holes or the inner walls of the holes in the substrate 2.
The substrate 1 and the substrate 2 are transparent or opaque, the curved holes or holes on the substrate 1 and the substrate 2 are through holes or non-through holes, and the holes on the substrate 1 and the substrate 2 are square or rectangular or have any shape.
The curved hole inner wall or the reflecting surface of the hole inner wall in the substrate 1 and the curved hole inner wall or the reflecting surface of the hole inner wall in the substrate 2 are arranged perpendicular or not perpendicular to each other.
Compared with the prior art, the optical waveguide array structure for aerial imaging has the following beneficial effects:
the utility model provides an optical waveguide array structure for aerial formation of image, includes base plate 1 and base plate 2, be equipped with a plurality of curve through-holes on base plate 1 and the base plate 2 respectively the curve through-hole inner wall is equipped with the reflecting surface, the reflecting surface of curve through-hole inner wall in base plate 1 with the reflecting surface quadrature arrangement of curve through-hole inner wall in the base plate 2. According to the present invention, the horizontal visibility angle of the floating real image can be increased, even to approximately 180 degrees. And the arrangement reduces afterimage generated by reflection of light rays in the optical waveguide array structure, improves imaging quality, is beneficial to improving viewing experience of users, and can be widely applied to various scenes.
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 diagram of embodiment 1 of the present invention;
FIG. 2 is a front view of embodiment 1 of the present invention;
FIG. 3 is a schematic diagram of orthogonal structures of reflective surfaces of a substrate 1 and a substrate 2 according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of an internal optical path according to an embodiment of the present invention;
FIG. 5 is an imaging schematic of an embodiment of the present invention;
fig. 6 is a schematic structural diagram of another embodiment 2 of the present invention.
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 only and are not to be construed as limiting the invention.
Referring to fig. 1, 2 and 3, an optical waveguide array structure for aerial imaging according to an embodiment of the present invention includes a substrate 1 and a substrate 2, wherein a plurality of curved through holes 3 are provided on the substrate 1, one surface of each curved through hole 3 is perpendicular to another surface and is inclined to the surface of the substrate 1, a reflective surface 4 is provided on an inner wall of each curved through hole 3, a plurality of curved through holes 5 are provided on the substrate 2, one surface of each curved through hole 5 is perpendicular to another surface and is inclined to the surface of the substrate 2, a reflective surface 6 is provided on an inner wall of each curved through hole 5, the reflective surfaces 4 on an inner wall of each curved through hole 3 in the substrate 1 are perpendicular to the reflective surfaces 6 on an inner wall of each curved through hole 5 in the substrate 2, and two layers of reflective surfaces which are arranged in order and correspond to each other are perpendicular to each other. Any scattered light emitted from the point light source, the plane light source and the stereo light source can be refocused and imaged at the same position on the other side of the optical waveguide array structure after passing through the optical waveguide array structure with the special structure, and the light source is referred to as fig. 4 and 5.
The vertex angles of all the optical waveguide array structures seen on a straight line are divided into left and right included angles of 45 degrees by the straight line, namely when scattered light emitted by the imaging element is incident to the edge, the scattered light always enters at an incident angle of 45 degrees. Therefore, light rays are reflected twice in the optical waveguide array structure to the greatest extent, and afterimages are prevented from being generated. When the image is small enough or the optical waveguide array structure is large enough, the horizontal viewing angle can be approximately equal to 180 degrees. In the existing imaging method, after the angle of view is deviated from the center by 30 degrees, the incident angle of the light is deviated from the required 45-degree incident angle, the light cannot be reflected again for converging imaging, and at the moment, the edge angle of view can only see the residual image generated by reflection.
The reflecting surface 4 of the inner wall of the curved through hole 3 in the substrate 1 and the reflecting surface 6 of the inner wall of the curved through hole 5 in the substrate 2 are used for total reflection of light. The smaller the distance between the curved through holes in the substrate and the curved through holes, the better the curved through holes are arranged parallel to the side of the substrate, and the lengths and widths of the curved through holes 3 and 5 in the substrate 1 and the substrate 2 are the same.
The substrate 1 and the substrate 2 may be processed into curved through holes by a processing method such as laser engraving, photolithography, etching, machining, etc., or the substrate with curved through holes may be processed at one time by a method such as injection molding, embossing, electroforming, etc. with a template or a mold, and the number of curved through holes is 1 or more, and the number of curved through holes is not particularly limited, and one surface of the curved through holes is perpendicular to the other surface and inclined to the substrate surface, so that multiple reflected light reflected for 3 times or more can be reduced or removed, and stray light can be effectively eliminated. A plurality of reflection surfaces exist in the optical waveguide, and unwanted multiple reflections occur, resulting in interference stray light. The substrate 1 and the substrate 2 are subjected to light shielding treatment or the substrate 1 and the substrate 2 are made of opaque materials, and the inner walls of the curved through holes of the substrate 1 and the substrate 2 are plated with a metal reflective film or a dielectric film or a reflective surface is formed by another process. In addition, the reflection surface of the inner wall of the curved through hole in the substrate 1 and the reflection surface of the inner wall of the curved through hole in the substrate 2 may be arranged non-orthogonally as required, and in the case of non-orthogonal arrangement, aberration may be generated by the reflection surfaces, two real images may be imaged, and the like. Transparent reinforcing materials, not shown, may be provided on the upper and lower surfaces of the substrates 1 and 2, and the frame may be cut or cut to a desired size as required. In the present embodiment, as an example, hundreds to thousands of such curved through holes are provided on a 5CM square substrate.
Fig. 4 shows the working principle of the light path:
in the micrometer structure, any optical signal is orthogonally decomposed by using a reflecting layer mirror surface structure which is orthogonal to each other, an original signal is decomposed into two paths of mutually orthogonal signals of a signal X and a signal Y, the signal X is totally reflected on the mirror surface according to the same reflection angle as the incident angle in a first physical layer, at the moment, the signal Y is kept parallel to the first physical layer, after passing through the first physical layer, the signal Y is totally reflected on the mirror surface according to the same reflection angle as the incident angle in a second physical layer, and the reflected optical signal formed by the reflected signal Y and the signal X is in mirror symmetry with the original optical signal. Therefore, the light rays in any direction can be mirror symmetrical through the optical waveguide array structure, divergent light of any light source can refocus and image at symmetrical positions through the optical waveguide array structure, the imaging distance is equal to the distance between the holographic reflecting layer and the light source, the imaging is equidistant, the position of the image is in the air, a specific carrier is not needed, and a real image is directly imaged in the air. Therefore, the image in the space seen by the user is the light emitted by the object actually present.
After the original light source passes through the light waveguide array structure, the above process is carried out on the light waveguide array structure, the incidence angles after focusing and imaging are beta 1, beta 2, beta 3 and beta 4 ….
In another embodiment, referring to fig. 6, an optical waveguide array structure for aerial imaging includes a substrate 1 and a substrate 2, wherein a plurality of curved through holes 3 are formed on the substrate 1, one surface of each curved through hole 3 is perpendicular to another surface and is inclined to the surface of the substrate 1, a reflective surface 4 is formed on an inner wall of each curved through hole 3, a plurality of square holes 5 are formed on the substrate 2, one surface of each square hole 5 is perpendicular to another surface and is inclined to the surface of the substrate 2, a reflective surface 6 is formed on an inner wall of each square hole 5, and the reflective surface 4 on an inner wall of each curved through hole 3 in the substrate 1 is perpendicular to the reflective surface 6 on an inner wall of each square hole 5 in the substrate 2. The reflective surfaces forming two layers of the orderly arranged mutually corresponding parts are mutually perpendicular, and scattered light rays emitted by any point light source, plane light source and three-dimensional light source can refocus and image at the same position on the other side of the optical waveguide array structure after passing through the optical waveguide array structure with the special structure, and refer to fig. 4 and 5. In this embodiment, the substrate is made of transparent or opaque material, the curved holes 3 or 5 on the substrate 1 and the substrate 2 are through holes or not, the holes on the substrate 2 are square or rectangular, and any shape can be adopted as long as the light reflected on the reflecting surface is transmitted through the holes. Holes with the same shape may be formed in the substrate 1 and the substrate 2, and other portions of this embodiment are the same as those of the foregoing embodiment, and will not be described again.
Preferably, one side of the curved through holes on the substrate 1 and the substrate 2 is perpendicular to the other side and inclined to the substrate surface.
Preferably, the curved through holes on the substrate 1 and the substrate 2 are arranged in parallel with respect to the substrate side.
Preferably, the lengths and widths of the curved through holes on the substrate 1 and the substrate 2 are the same.
Preferably, one surface of the curved through holes on the substrate 1 and the substrate 2 is provided with a reflecting surface, and the other surface is provided with a non-reflecting surface.
Preferably, all of the curved through holes provided on the substrate 1 and the substrate 2 are through holes.
Preferably, the substrate is transparent or opaque, and the substrate 1 and the substrate 2 are plane or wedge-shaped or spherical.
Preferably, the substrate 1 and the substrate 2 are further provided with encryption curve through holes.
The curved through holes on the substrate 1 and the substrate 2 are preferably arranged at equal intervals, but may be arranged at different intervals, or may be gradually reduced or increased from the center to the edge of the substrate according to the intervals. The substrate 1 and the substrate 2 may be used in a plurality of stacked layers as needed.
Compared with the prior art, the optical waveguide array structure for aerial imaging has the following beneficial effects:
the utility model provides an optical waveguide array structure for aerial formation of image, includes base plate 1 and base plate 2, be equipped with a plurality of curve through-holes on base plate 1 and the base plate 2 respectively the curve through-hole inner wall is equipped with the reflecting surface, the reflecting surface of curve through-hole inner wall in base plate 1 with the reflecting surface quadrature arrangement of curve through-hole inner wall in the base plate 2. According to the present invention, the horizontal visibility angle of the floating real image can be increased, even to approximately 180 degrees. And the arrangement reduces afterimage generated by reflection of light rays in the optical waveguide array structure, improves imaging quality, is beneficial to improving viewing experience of users, and can be widely applied to various scenes.
The foregoing is only a partial embodiment of the present invention, and it should be noted that it will be apparent to those skilled in the art that modifications and adaptations can be made without departing from the principles of the present invention, and such modifications and adaptations are intended to be comprehended within the scope of the present invention.
Claims (10)
1. The utility model provides an optical waveguide array structure for aerial formation of image, its characterized in that includes base plate (1) and base plate (2), be equipped with a plurality of curve through-holes on base plate (1) and base plate (2) respectively the curve through-hole inner wall is equipped with the reflecting surface, the reflecting surface of curve through-hole inner wall in base plate (1) with the reflecting surface quadrature arrangement of curve through-hole inner wall in base plate (2).
2. An optical waveguide array structure for aerial imaging of claim 1, wherein: the curved through holes on the substrate (1) and the substrate (2) are vertical or nearly vertical or one surface is vertical and the other surface is inclined to the surface of the substrate.
3. An optical waveguide array structure for aerial imaging of claim 1, wherein: the curved through holes on the substrate (1) and the substrate (2) are arranged in parallel or obliquely relative to the side surface of the substrate.
4. An optical waveguide array structure for aerial imaging of claim 1, wherein: the curved through holes on the substrate (1) and the substrate (2) are long and/or short and/or wide and/or narrow, and the widths of the curved through holes on the substrate (1) and the substrate (2) are reduced or increased from the center to the edge of the substrate.
5. An optical waveguide array structure for aerial imaging of claim 1, wherein: one surface of each curved through hole on the substrate (1) and one surface of each curved through hole on the substrate (2) are provided with reflecting surfaces, and the other surfaces are provided with non-reflecting surfaces or reflecting surfaces.
6. An optical waveguide array structure for aerial imaging of claim 1, wherein: the substrate (1) and the substrate (2) are transparent or opaque, and the curved through holes on the substrate (1) and the substrate (2) are partial through holes and partial non-through holes.
7. An optical waveguide array structure for aerial imaging of claim 1, wherein: the reflecting surface of the inner wall of the curve through hole in the substrate (1) and the reflecting surface of the inner wall of the curve through hole in the substrate (2) are perpendicular or not orthogonally arranged.
8. The optical waveguide array structure for aerial imaging is characterized by comprising a substrate (1) and a substrate (2), wherein a plurality of curve holes or holes are respectively formed in the substrate (1) and the substrate (2), reflecting surfaces are arranged on the inner walls of the curve holes and the inner walls of the holes, and the reflecting surfaces of the inner walls of the curve holes or the inner walls of the holes in the substrate (1) are orthogonally arranged with the reflecting surfaces of the inner walls of the curve holes or the inner walls of the holes in the substrate (2).
9. An optical waveguide array structure for aerial imaging of claim 8, wherein: the substrate (1) and the substrate (2) are transparent or opaque, the curved holes or holes on the substrate (1) and the substrate (2) are through holes or non-through holes, and the holes on the substrate (1) and the substrate (2) are square or rectangular or any shape.
10. An optical waveguide array structure for aerial imaging of claim 8, wherein: the curved hole inner wall or the reflecting surface of the hole inner wall in the substrate (1) and the curved hole inner wall or the reflecting surface of the hole inner wall in the substrate (2) are perpendicular or not perpendicular to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111501015.2A CN116256824A (en) | 2021-12-09 | 2021-12-09 | Optical waveguide array structure for aerial imaging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111501015.2A CN116256824A (en) | 2021-12-09 | 2021-12-09 | Optical waveguide array structure for aerial imaging |
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| Publication Number | Publication Date |
|---|---|
| CN116256824A true CN116256824A (en) | 2023-06-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111501015.2A Pending CN116256824A (en) | 2021-12-09 | 2021-12-09 | Optical waveguide array structure for aerial imaging |
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| CN (1) | CN116256824A (en) |
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2021
- 2021-12-09 CN CN202111501015.2A patent/CN116256824A/en active Pending
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