CN212276015U

CN212276015U - Optical waveguide lens

Info

Publication number: CN212276015U
Application number: CN202022069091.8U
Authority: CN
Inventors: 郭生文
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-09-21
Filing date: 2020-09-21
Publication date: 2021-01-01
Anticipated expiration: 2030-09-21

Abstract

The utility model relates to an optical waveguide lens, including a base plate, the base plate two sides is equipped with a plurality of rectangular shape recesses respectively, makes two sets of optical waveguide arrays about this base plate forms rectangular shape recess inner wall is equipped with the plane of reflection, the plane of reflection mutually perpendicular or the unorthogonal arrangement of the rectangular shape recess inner wall of base plate two sides. According to the utility model discloses, can realize the simplification of structure and the reduction of cost, eliminate the veiling glare to what can make is very thin, can use various scenes widely.

Description

Optical waveguide lens

Technical Field

The utility model relates to an optics field, particularly, the utility model relates to an optical waveguide lens.

Background

With the development of imaging display technology, the requirements for imaging characteristics are continuously increasing. The air imaging technology is that light emitted from an object to be projected arranged on one side of an optical lens is reflected by a mirror surface in the optical lens and simultaneously transmits through a plane of the optical lens, 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. However, the conventional optical waveguide lens has a disadvantage that undesired multiple reflection occurs due to limitation of a field of view and an aperture to form interference stray light, and the structure thereof needs to be arranged or assembled with high precision, thereby causing complication of the structure and increase of cost.

Disclosure of Invention

An object of the utility model is to improve prior art not enough, provide one kind and can realize the simplification of structure and the reduction of cost, eliminate the veiling glare to what can make is very thin, solve prior art not enough.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

the optical waveguide lens comprises a substrate, wherein a plurality of strip-shaped grooves are formed in two sides of the substrate respectively, so that the substrate forms an upper group of optical waveguide array and a lower group of optical waveguide array, reflecting surfaces are arranged on the inner walls of the strip-shaped grooves, and the reflecting surfaces on the inner walls of the strip-shaped grooves on the two sides of the substrate are mutually perpendicular or not orthogonally arranged.

The strip-shaped groove on the substrate is vertical or nearly vertical or one surface is vertical to the other surface and is inclined to the surface of the substrate.

The substrate is transparent or non-transparent, the depths of the strip-shaped grooves on the two sides of the substrate are equal or unequal, and the bottoms of the strip-shaped grooves on the two sides of the substrate are communicated or not communicated.

The optical waveguide lens comprises a substrate, wherein a plurality of strip-shaped grooves or bosses are respectively arranged on two surfaces of the substrate, so that the substrate forms an upper group of optical waveguide array and a lower group of optical waveguide array, reflecting surfaces are respectively arranged on the inner walls of the strip-shaped grooves or on the two side surfaces of the bosses, and the reflecting surfaces on the inner walls of the strip-shaped grooves or on the two side surfaces of the bosses on the two surfaces of the substrate are mutually vertical or are not orthogonally arranged.

The optical waveguide lens comprises a substrate, wherein one side of the substrate is provided with a plurality of strip-shaped grooves, a plurality of holes are formed in the bottoms of the strip-shaped grooves, the substrate is enabled to form an upper group of optical waveguide array and a lower group of optical waveguide array, the inner walls of the strip-shaped grooves and the inner walls of the holes in the bottoms of the grooves are respectively provided with a reflecting surface, and the reflecting surface of the inner wall of the strip-shaped groove in one side of the substrate and the reflecting surface of the inner wall of the hole in the bottom of the groove are mutually.

The hole at the bottom of the strip-shaped groove is square or rectangular or in any shape, and the hole at the bottom of the strip-shaped groove is a through hole or a non-through hole.

The long strip-shaped boss or groove or hole on the substrate is vertical or nearly vertical or one surface is vertical to the other surface and is inclined to the surface of the substrate.

The substrate is transparent or non-transparent, the depths of the strip-shaped grooves on the two sides of the substrate are equal or unequal, the depths of the strip-shaped grooves and the holes at the bottoms of the grooves are equal or unequal, and the bottoms of the strip-shaped grooves on the two sides of the substrate are communicated or not communicated.

The elongated grooves or the elongated bosses or the elongated holes on the substrate are arranged in parallel or obliquely relative to the side surface of the substrate.

The inner wall of the elongated groove or the two side surfaces of the boss or one surface of the inner wall of the hole on the substrate is provided with a reflecting surface, and the other surface is a non-reflecting surface or both surfaces are provided with reflecting surfaces.

Compared with the prior art, the utility model relates to an optical waveguide lens has following beneficial effect:

the optical waveguide lens comprises a substrate, wherein a plurality of strip-shaped grooves are formed in two sides of the substrate respectively, so that the substrate forms an upper group of optical waveguide array and a lower group of optical waveguide array, reflecting surfaces are arranged on the inner walls of the strip-shaped grooves, and the reflecting surfaces on the inner walls of the strip-shaped grooves on the two sides of the substrate are mutually perpendicular or not orthogonally arranged. According to the utility model discloses, can realize the simplification of structure and the reduction of cost, eliminate the veiling glare to what can make is very thin, can use various scenes widely.

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 another schematic structural diagram of embodiment 1 of the present invention;

fig. 3 is a schematic structural view of a structure in which one surface of a strip-shaped groove of embodiment 1 of the present invention is perpendicular to the other surface and inclined to the surface of a substrate;

FIG. 4 is a schematic view of a structure of the reflecting surfaces perpendicular to each other according to an embodiment of the present invention;

fig. 5 is a schematic diagram of an internal light path according to an embodiment of the present invention;

fig. 6 is an imaging schematic diagram of an embodiment of the present invention;

fig. 7 is a schematic structural view of another embodiment 2 of the present invention;

fig. 8 is a schematic structural view of another embodiment 3 of the present invention;

fig. 9 is a schematic structural view of a structure in which one surface of a hole at the bottom of an elongated groove of the present invention is perpendicular to the other surface and inclined to the surface of a substrate according to embodiment 3 of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present invention, and should not be construed as limiting the present invention.

Referring to fig. 1, 2, 3 and 4, an optical waveguide lens according to an embodiment 1 of the present invention includes a substrate 1, a plurality of strip-shaped grooves 2 formed on one surface of the substrate 1, the depth of the surface strip-shaped groove 2 is half of the thickness of the substrate 1, a plurality of strip-shaped grooves 2 are arranged on the other surface of the substrate 1, the depth of the strip-shaped groove 2 is half of the thickness of the substrate 1 at the bottom of the strip-shaped groove 2 on the other side, the strip-shaped grooves 2 on the two sides of the substrate 1 are orthogonally arranged, a through hole is formed on the surface of the strip-shaped groove 2 on the two sides of the substrate 1, the substrate 1 forms an upper group of optical waveguide array and a lower group of optical waveguide array, one surface of the strip-shaped groove 2 on the two sides of the substrate 1 is perpendicular to the other surface of the substrate 1, the inner walls of the strip-shaped grooves 2 on the two sides of the substrate 1 are respectively provided with a reflecting surface 3, and the reflecting surfaces 3 on the inner walls of the strip-shaped grooves 2 on the two sides of the substrate. The scattered light emitted from any point light source, planar light source and stereo light source will be refocused and imaged at the same position on the other side of the lens after passing through the lens with the special structure, see fig. 5 and 6.

The reflecting surfaces 3 on the inner walls of the strip-shaped grooves 2 on the two surfaces of the substrate 1 are used for carrying out total reflection on light. The smaller the distance between the strip-shaped groove 2 and the strip-shaped groove 2 in the substrate 1 is, the better, the strip-shaped groove 2 is arranged in parallel relative to the side surface of the substrate, and the length and the width of the strip-shaped groove 2 on the two surfaces of the substrate 1 are the same.

The two surfaces of the substrate 1 are processed into strip-shaped grooves 2 by processing methods such as laser engraving, photoetching and the like, the strip-shaped grooves 2 can be processed in the frame according to needs, the substrate 1 with the strip-shaped grooves 2 can also be processed by other processing techniques at one time, the depths of the strip-shaped grooves 2 on the two surfaces of the substrate 1 are equal or unequal according to needs, and the bottoms of the grooves are communicated or not communicated. The number of the elongated grooves 2 is not particularly limited if it is 1 or more, and the other surface of one surface of the elongated grooves 2 perpendicular to the surface of the substrate 1 is inclined to the surface (see fig. 3), and the other surface of the surface perpendicular to the grooves 2 having the reflecting surface is a non-reflecting surface, so that the multiple reflection light of the reflection occurring 3 times or more can be reduced or removed, and the stray light can be effectively eliminated. There are multiple reflecting surfaces reflecting inside the optical waveguide, causing unwanted multiple reflections, which form interfering stray light. The substrate 1 is made of transparent material or opaque material, for example, the transparent material substrate 1 is processed by shading except the part for forming the strip-shaped grooves 2, and the vertical surfaces of the inner walls of the strip-shaped grooves 2 on the two surfaces of the substrate 1 are coated with reflective film or formed with reflective surfaces by other processes. In addition, the reflecting surfaces of the inner walls of the elongated grooves on both surfaces of the substrate may be arranged non-orthogonally as required, and when the reflecting surfaces are arranged non-orthogonally, aberration may be generated to form two real images. A transparent reinforcing material, not shown, formed in a thin plate shape may be provided on the upper and lower surfaces of the substrate 1, and the frame may be cut or cut into a desired size as needed in the finished product with the transparent reinforcing material. In this embodiment, as an example, thousands to tens of thousands of such elongated grooves are provided on a 5CM square substrate.

Fig. 5 shows the working principle of the light path:

on the micrometer structure, a reflecting layer mirror surface structure which is orthogonal with each other is used for orthogonal decomposition of any optical signal, 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 a reflection angle which is the same as an incident angle on a first physical layer, the signal Y is kept parallel to the first physical layer at the moment, after passing through the first physical layer, the signal Y is totally reflected on the mirror surface according to a reflection angle which is the same as the incident angle on a second physical layer surface, and a reflected optical signal which is formed by the reflected signal Y and the signal X is mirror-symmetrical with the original optical signal. Therefore, the light rays in any direction can realize mirror symmetry through the lens, the divergent light of any light source can be refocused and imaged at a symmetrical position through the lens, the imaging distance is the same as the distance between the holographic reflection layer and the light source, the imaging is carried out at equal distance, the image is positioned in the air, a specific carrier is not needed, and the real image is directly imaged in the air. Therefore, the image in the space seen by the user is the light emitted by the actual object.

After an original light source passes through the optical waveguide lens structure, the above process is performed on the optical waveguide lens structure, the focused and imaged incidence angles are beta 1, beta 2, beta 3, beta 4 ….. beta n, and the distance L between the image and the optical waveguide lens structure, so that the image is imaged at the equal interval L between the optical waveguide lens structure and the original light source, and the visual angle is 2 times max (beta), therefore, if the size of the lens is smaller, the image can be seen only at a certain distance from the front; the lenses are combined together to focus the light beams guided out by the lenses towards a specified point, so that people can view aerial images within the range of 360 degrees, and if the size of the plate is increased, a larger imaging distance can be realized, and the visual field rate is increased.

In another embodiment 2, please refer to fig. 7, which illustrates an optical waveguide lens, including a transparent substrate 1, wherein a plurality of strip-shaped bosses 2 are respectively disposed on two surfaces of the transparent substrate 1, the strip-shaped bosses 2 on the two surfaces of the transparent substrate 1 are orthogonally arranged, so that the transparent substrate 1 forms an upper and a lower optical waveguide arrays, one surface of the strip-shaped boss 2 on the two surfaces of the transparent substrate 1 is perpendicular to the other surface and is inclined to the surface of the substrate 1, two side surfaces of the strip-shaped boss 2 on the two surfaces of the transparent substrate 1 are respectively disposed with a reflective surface 3, and the reflective surfaces 3 on the two side surfaces of the strip-shaped boss 2 on the two surfaces of the transparent substrate. The scattered light emitted from any point light source, planar light source and stereo light source will be refocused and imaged at the same position on the other side of the lens after passing through the lens with the special structure, see fig. 5 and 6. In this embodiment, a plurality of elongated grooves may be formed on one surface of the transparent substrate 1, and a plurality of elongated bosses may be formed on the other surface of the transparent substrate 1. Other parts of this embodiment are the same as those of the above embodiment, and are not described again.

In another embodiment 3, please refer to fig. 8 and 9, an optical waveguide lens includes a substrate 1, one side of the substrate 1 is provided with a plurality of strip-shaped grooves 2, the bottom of the strip-shaped grooves 2 is provided with a plurality of square holes 3, the strip-shaped grooves 2 on one side of the substrate 1 and the square holes 3 at the bottom of the grooves 2 are orthogonally arranged, so that the substrate 1 forms an upper and a lower two sets of optical waveguide arrays, one side of the strip-shaped grooves 2 on one side of the substrate 1 and one side of the square holes 3 at the bottom of the grooves 2 are perpendicular to the other side and are inclined to the surface of the substrate 1, the inner walls of the strip-shaped grooves 2 and the inner walls of the square holes 3 at the bottom of the grooves 2 are respectively provided with reflecting surfaces 4, and the reflecting surfaces 4 of the inner walls of the strip-shaped grooves. The scattered light emitted from any point light source, planar light source and stereo light source will be refocused and imaged at the same position on the other side of the lens after passing through the lens with the special structure, see fig. 5 and 6. In this embodiment, the hole 3 at the bottom of the elongated groove 2 is square or rectangular, and any shape can be adopted as long as the light energy reflected by the reflecting surface transmits the hole, the hole 3 at the bottom of the elongated groove 2 may be a through hole or not, and the depths of the elongated groove 2 and the hole 3 at the bottom of the groove 2 are equal or unequal. Other parts of this embodiment are the same as those of the above embodiment, and are not described again.

Preferably, one surface of the elongated boss or groove or the hole at the bottom of the groove on the substrate 1 is perpendicular to the other surface and is inclined to the surface of the substrate 1.

Preferably, the substrate 1 is opaque, the depths of the strip-shaped grooves on the two sides of the substrate 1 are equal, the depths of the strip-shaped grooves and the holes at the bottoms of the grooves are equal, the bottoms of the strip-shaped grooves on the two sides of the substrate 1 are communicated, and the holes at the bottoms of the strip-shaped grooves are through holes.

Preferably, elongated grooves or projections or holes on the substrate 1 are arranged parallel to the substrate side.

Preferably, one surface of the inner wall of the elongated groove or the two side surfaces of the boss or the inner wall of the hole on the substrate 1 is provided with a reflecting surface, and the other surface is a non-reflecting surface.

Preferably, the length and width of the elongated grooves or projections or holes on both sides of the substrate 1 are the same.

Preferably, the width of the elongated grooves or projections or holes on both sides of the substrate 1 decreases from the center of the substrate to the edge.

Preferably, the substrate 1 is a plane or wedge-facet.

Compared with the prior art, the embodiment of the utility model provides an optical waveguide lens has following beneficial effect:

The foregoing is only a partial embodiment of the present invention, and it should be noted that, for those skilled in the art, many modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The optical waveguide lens is characterized by comprising a substrate, wherein a plurality of strip-shaped grooves are respectively formed in two surfaces of the substrate, so that the substrate forms an upper group of optical waveguide array and a lower group of optical waveguide array, reflecting surfaces are arranged on the inner walls of the strip-shaped grooves, and the reflecting surfaces on the inner walls of the strip-shaped grooves on the two surfaces of the substrate are mutually perpendicular or not orthogonally arranged.

2. An optical waveguide lens according to claim 1, wherein: the strip-shaped groove on the substrate is vertical or nearly vertical or one surface is vertical to the other surface and is inclined to the surface of the substrate.

3. An optical waveguide lens according to claim 1, wherein: the substrate is transparent or non-transparent, the depths of the strip-shaped grooves on the two sides of the substrate are equal or unequal, and the bottoms of the strip-shaped grooves on the two sides of the substrate are communicated or not communicated.

4. The optical waveguide lens is characterized by comprising a substrate, wherein a plurality of strip-shaped grooves or bosses are respectively arranged on two surfaces of the substrate, so that the substrate forms an upper group of optical waveguide array and a lower group of optical waveguide array, reflecting surfaces are respectively arranged on the inner walls of the strip-shaped grooves or two side surfaces of the bosses, and the reflecting surfaces on the inner walls of the strip-shaped grooves or the two side surfaces of the bosses on the two surfaces of the substrate are mutually vertical or are not in orthogonal arrangement.

5. The optical waveguide lens is characterized by comprising a substrate, wherein one surface of the substrate is provided with a plurality of strip-shaped grooves, a plurality of holes are formed in the bottoms of the strip-shaped grooves, so that the substrate forms an upper group of optical waveguide array and a lower group of optical waveguide array, the inner walls of the strip-shaped grooves and the inner walls of the holes in the bottoms of the grooves are respectively provided with a reflecting surface, and the reflecting surface of the inner wall of the strip-shaped groove in one surface of the substrate and the reflecting surface of the inner wall of the hole in the bottom of the groove are mutually perpendicular or.

6. An optical waveguide lens according to claim 5, wherein: the hole at the bottom of the strip-shaped groove is square or rectangular or in any shape, and the hole at the bottom of the strip-shaped groove is a through hole or a non-through hole.

7. An optical waveguide lens according to claim 4 or 5, wherein: the long strip-shaped boss or groove or hole on the substrate is vertical or nearly vertical or one surface is vertical to the other surface and is inclined to the surface of the substrate.

8. An optical waveguide lens according to claim 4 or 5, wherein: the substrate is transparent or non-transparent, the depths of the strip-shaped grooves on the two sides of the substrate are equal or unequal, the depths of the strip-shaped grooves and the holes at the bottoms of the grooves are equal or unequal, and the bottoms of the strip-shaped grooves on the two sides of the substrate are communicated or not communicated.

9. An optical waveguide lens according to claim 1, 4 or 5, wherein: the elongated grooves or the elongated bosses or the elongated holes on the substrate are arranged in parallel or obliquely relative to the side surface of the substrate.

10. An optical waveguide lens according to claim 1, 4 or 5, wherein: the inner wall of the elongated groove or the two side surfaces of the boss or one surface of the inner wall of the hole on the substrate is provided with a reflecting surface, and the other surface is a non-reflecting surface or both surfaces are provided with reflecting surfaces.