CN222259617U - Composite multi-plane large-angle light ray retro-reflector - Google Patents
Composite multi-plane large-angle light ray retro-reflector Download PDFInfo
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- CN222259617U CN222259617U CN202421095395.3U CN202421095395U CN222259617U CN 222259617 U CN222259617 U CN 222259617U CN 202421095395 U CN202421095395 U CN 202421095395U CN 222259617 U CN222259617 U CN 222259617U
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Abstract
The utility model relates to the technical field of imaging optics, in particular to a composite multi-plane large-angle light ray retro-reflector. The three-dimensional reflecting mirror is formed by combining two or more than two retro-reflecting mirrors positioned on different planes, wherein a plurality of three-dimensional right-angle reflecting units are arranged on the upper surface or inside the retro-reflecting mirror positioned on each plane, and any two reflecting planes in each three-dimensional right-angle reflecting unit are mutually perpendicular. The compound multi-plane large-angle light ray retro-reflector can be used for retro-reflecting light rays in large-angle divergent light beams emitted by a certain luminous point in an object image source according to respective incident angles of the light rays, so that the retro-reflected light rays are converged on the same mirror image light point in the air again, and the re-divergent angle of the converged mirror image light point is larger than 90 degrees, so that a suspension mirror image with a visual angle larger than 90 degrees is provided for an observer.
Description
Technical Field
The utility model relates to the technical field of imaging optics, in particular to a composite multi-plane large-angle light ray retro-reflector.
Background
With the development of optical display technology, more and more electronic products are displayed by adopting a mode with an entity screen, and one or more entity display screens are required to be placed on mobile phones, computers, vehicle-mounted central control screens and the like which are used daily to solve the problem of displaying information contents.
Compared with a physical display screen with media, the non-media suspension display technology has extremely strong technological sense due to the non-media suspension display characteristic, meanwhile, the non-media suspension display avoids the contact between a user and an entity display device, reduces the possibility of cross infection of germs, and has very wide application prospects in the fields of elevator keys, self-help registration payment in hospitals, ATM and the like.
And the medium-free suspension display is realized, imaging light rays emitted by the solid display screen are required to be collected and reconstructed, and the scattered light rays are converged and imaged in the air again. At present, a common 'two-sided right angle reflecting mirror' or a single-plane retroreflecting film is displayed in a medium-free air suspension mode, and the incident angle of the traditional single-plane retroreflecting film is not more than 90 degrees, so that if the included angle between the rays in a divergent light beam is more than 90 degrees for imaging rays emitted from the same luminous point, the retroreflecting film positioned on the same plane cannot simultaneously reflect the incident rays with the included angle of more than 90 degrees emitted from the same luminous point by the retroreflecting film and then re-converge, and the visible angle of the incident rays is not more than 90 degrees when the incident rays are used for medium-free air imaging.
As shown in fig. 1 and 2, the most relevant technology for displaying a medium-free floating display is that an image of a physical display on either one side of the right or left side is mirrored to the other side of a right dihedral corner reflector array (DCRA DIHEDRAL corner reflector array) lens, so that the medium-free floating display effect is formed in the air. The technology is formed by bonding two pieces of planar glass formed by a plurality of glass strips through optical adhesives, optical reflection surfaces are required to be plated on two sides of the glass strips, the manufacturing process is complex, the yield is low, and the cost is high.
At present, a technical problem commonly exists in a right-angle dihedral corner reflector array (DCRA DIHEDRAL corner reflector array) lens technology or a single-plane retroreflective film, the actual popularization and application of the technology are affected, and the existing product has the defect that the visible angle is smaller than 90 degrees. Because the single right-angle reflector array lens or the single plane retro-reflection film is adopted to reflect light rays for converging imaging, in theory, the incident angle of the right-angle corner reflector array or the single plane retro-reflection film cannot exceed the range of 90 degrees, so that the visible angle of light points converged by retro-reflection cannot exceed +/-45 degrees, namely exceed the range of +/-45 degrees right in front of a suspended image, the suspended image is invisible, and the use experience of a viewer is limited.
Disclosure of utility model
The utility model provides a composite multi-plane large-angle light ray retro-reflector, and aims to solve the technical defects of the existing medium-free air suspension display.
The utility model provides a compound multi-plane large-angle light ray retro-reflector which is formed by combining two or more than two retro-reflecting lenses positioned on different planes, wherein a plurality of three-sided right-angle reflecting units are arranged on the upper surface or inside each retro-reflecting lens positioned on each plane, and any two reflecting planes in each three-sided right-angle reflecting unit are mutually perpendicular.
As a further improvement of the utility model, a plurality of reflecting areas are arranged in the retro-reflecting mirror plate, the reflecting areas are arranged on the upper surface or the inside of the retro-reflecting mirror plate in an array mode, and each reflecting area is internally provided with one three-side right-angle reflecting unit.
As a further development of the utility model, the vertices of the three reflection planes of the corner cube reflection unit intersect towards the reflection area.
As a further improvement of the present utility model, in each of the retro-reflecting mirror plates, a plurality of the corner cube reflecting units formed in an array form together a mirror reflecting surface.
As a further improvement of the utility model, the angle formed by the lens reflecting surface of each of the retro-reflecting lenses and the lens reflecting surface of the other retro-reflecting lens is larger than 90 degrees.
As a further improvement of the present utility model, the types of the array arrangement of the reflective regions include a determinant arrangement, a triangular staggered arrangement, a petal-shaped arrangement, and a concentric circle arrangement.
As a further improvement of the present utility model, a plurality of the retro-reflective mirrors are connected to each other, or a plurality of the retro-reflective mirrors are spaced from each other.
As a further improvement of the present utility model, the light incident into the corner cube reflection unit is reflected by the third reflection plane and then is retro-reflected in a direction parallel to the original incident direction.
As a further improvement of the utility model, the inner side of the reflecting plane is plated with a reflecting film.
The compound multi-plane large-angle light ray retro-reflector has the advantages that light rays in large-angle divergent light beams (divergent light beams larger than 90 degrees) emitted by a certain luminous point in an object image source can be retro-reflected according to respective incidence angles of the light rays, so that the retro-reflected light rays are converged on the same mirror image light spot in the air again, and the re-divergent angle of the converged mirror image light spot is larger than 90 degrees, so that a suspension mirror image with a visual angle larger than 90 degrees is provided for an observer.
Drawings
FIG. 1 is a first schematic diagram of a prior art media-less floating display technique;
FIG. 2 is a second schematic diagram of a prior art media-less floating display technique;
FIG. 3 is a block diagram of the overall structure of a compound multi-planar high angle ray retro-reflector of the present utility model;
FIG. 4 is a block diagram of a single retroreflective lens of the utility model;
FIG. 5 is a block diagram of a corner cube reflection unit according to the utility model;
FIG. 6 is a side view of the structure of a compound multi-planar high angle light ray retro-reflector of the present utility model;
FIG. 7 is a graph showing the light emission profile of the light emitting point A in the composite multi-planar high angle light retroreflector of the present utility model.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent.
As shown in fig. 3 to 5, the composite multi-plane large-angle light ray retro-reflector of the present utility model is formed by combining two or more than two retro-reflecting mirrors 1 located on different planes, wherein a plurality of three-sided right angle reflecting units 2 are arranged on the upper surface or inside of the retro-reflecting mirror 1 located on each plane, and any two reflecting planes 3 in each three-sided right angle reflecting unit 2 are mutually perpendicular.
The retro-reflector is formed by compounding two or more retro-reflecting lenses 1 positioned on different planes, and a plurality of three-sided right-angle reflecting units 2 are arranged on the upper surface or inside each plane retro-reflecting lens 1. Any two plane reflection surfaces in the three-sided right angle reflection unit 2 are mutually perpendicular, and after the light rays entering the three-sided right angle reflection unit 2 are reflected by the three reflection planes 3, the light rays are subjected to back reflection along the direction parallel to the original incidence direction.
A plurality of reflection areas 4 are arranged in the retro-reflection mirror plate 1, the reflection areas 4 are arranged on the upper surface or inside the retro-reflection mirror plate 1 in an array mode, and a three-sided right angle reflection unit 2 is arranged in each reflection area 4. The three reflection planes 3 of the three right-angle reflection unit 2 are intersected with the vertex facing the reflection area 4, so that three emission planes can be guaranteed to face the incident direction of the light, and the incident light can be reflected for three times.
Types of array arrangements of the reflective regions 4 include determinant arrangements, triangular staggered arrangements, petal arrangements, concentric circle arrangements. The inner side of the reflecting plane is plated with a reflecting film. The core imaging component of the utility model adopts a flat plate type three-sided right angle micro-mirror array, can be realized by injection molding or imprinting and film plating processes, has convenient manufacturing process, greatly reduces the cost, and forcefully promotes the large-scale popularization of large-visual-angle non-medium suspension display products.
In each of the retro-reflecting mirror plates 1, a plurality of corner cube reflecting units 2 formed in an array form a mirror reflecting surface together. The angle formed by the mirror reflection surface of each retro-reflection mirror 1 and the mirror reflection surface of the other retro-reflection mirror 1 is larger than 90 degrees.
The plurality of retro-reflective mirrors 1 are connected to each other or the plurality of retro-reflective mirrors 1 are spaced apart from each other. The two or more than two retro-reflecting mirrors 1 are combined together, the edges of the reflecting mirrors can be connected with each other, a certain distance can also be kept, the retro-reflecting mirrors 1 positioned on different planes in the two reflecting mirrors, and an included angle formed by a reflecting surface formed by the array of the three right-angle reflecting units 2 in each retro-reflecting mirror 1 and the reflecting surface of the other retro-reflecting mirror is larger than 90 degrees. In this way, the two reflector array plates are combined together, so that the retro-reflection angle can be expanded to be more than 90 degrees.
As shown in FIG. 7, the working principle of the compound multi-plane large-angle light ray retro-reflector is that the divergent light ray emitted by the luminous point A forms a retro-reflection angle within 90 degrees on the reflecting surface formed by the single three-sided right-angle reflector micro-cell array, when two reflector array plates with included angles larger than 90 degrees are combined together, the two retro-reflection light rays with the retro-reflection angles within 90 degrees are overlapped and combined together, so that the retro-reflection light ray with the divergent angle larger than 90 degrees can be formed, and a real image point with the visible angle larger than 90 degrees is obtained on the other side after the light points are restored and converged.
Compared with the optical materials of the medium-free floating display on the market at present, the single right-angle dihedral corner reflector is adopted to reflect light rays for converging imaging, and the light rays with the incidence angle exceeding 45 degrees are not reflected any more, so that the actual visual angle cannot be larger than 90 degrees, and the use experience is limited. The composite multi-plane large-angle light ray retro-reflector provided by the utility model can increase the visual angle, and when two reflector array plates with included angles larger than 90 degrees are combined together, the two retro-reflection light rays with the retro-reflection angles within 90 degrees are combined together, so that the retro-reflection light rays with the divergence angles larger than 90 degrees can be formed, and the visual angle larger than 90 degrees can be possible.
The composite multi-plane large-angle light ray retro-reflector provided by the utility model effectively solves the problem of insufficient visible angle of the existing floating display, brings feasibility for the non-medium floating display device to land in the automobile industry, and has a very strong floating display effect and obvious economic and social benefits due to relatively low manufacturing cost.
The foregoing is a further detailed description of the utility model in connection with the preferred embodiments, and it is not intended that the utility model be limited to the specific embodiments described. It will be apparent to those skilled in the art that several simple deductions or substitutions may be made without departing from the spirit of the utility model, and these should be considered to be within the scope of the utility model.
Claims (9)
1. The composite multi-plane large-angle light ray retro-reflector is characterized by being formed by combining two or more than two retro-reflecting lenses in different planes, wherein a plurality of three-sided right-angle reflecting units are arranged on the upper surface or inside each retro-reflecting lens in each plane, and any two reflecting planes in each three-sided right-angle reflecting unit are mutually perpendicular.
2. The compound multi-plane large-angle light ray retro-reflector according to claim 1, wherein a plurality of reflecting areas are arranged in the retro-reflecting mirror plate, the reflecting areas are arrayed on the upper surface or the inner part of the retro-reflecting mirror plate, and one tri-angle reflecting unit is arranged in each reflecting area.
3. The compound multi-planar high angle light ray retro-reflector of claim 2, wherein the three reflective planes of the corner cube reflective unit intersect at an apex that faces into the reflective area.
4. The compound multi-planar high angle light ray retro-reflector of claim 2, wherein a plurality of said corner cube reflective elements forming an array together form a single mirror reflective surface in each of said retro-reflective mirrors.
5. The compound multi-planar high angle light ray retro-reflector of claim 4, wherein the mirror reflective surface of each of the retro-reflective mirrors forms an angle greater than 90 ° with the mirror reflective surface of the other of the retro-reflective mirrors.
6. The compound multi-planar high angle light ray retro-reflector according to claim 2, wherein the type of array arrangement of the reflective areas includes a determinant arrangement, a triangular staggered arrangement, a petal arrangement, a concentric circle arrangement.
7. The compound multi-planar high angle light ray retro-reflector of claim 1, wherein a plurality of said retro-reflective mirrors are interconnected or a plurality of said retro-reflective mirrors are spaced apart from each other.
8. The compound multi-planar high angle light ray retro-reflector according to claim 1, wherein light rays entering the corner cube reflecting unit are retro-reflected in a direction parallel to an original incident direction after being reflected by the corner cube reflecting plane.
9. The compound multi-planar high angle light ray retro-reflector according to claim 1, wherein the reflective plane is coated with a reflective film on the inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421095395.3U CN222259617U (en) | 2024-05-20 | 2024-05-20 | Composite multi-plane large-angle light ray retro-reflector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421095395.3U CN222259617U (en) | 2024-05-20 | 2024-05-20 | Composite multi-plane large-angle light ray retro-reflector |
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| Publication Number | Publication Date |
|---|---|
| CN222259617U true CN222259617U (en) | 2024-12-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202421095395.3U Active CN222259617U (en) | 2024-05-20 | 2024-05-20 | Composite multi-plane large-angle light ray retro-reflector |
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| Country | Link |
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| CN (1) | CN222259617U (en) |
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- 2024-05-20 CN CN202421095395.3U patent/CN222259617U/en active Active
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