CN112213804B

CN112213804B - Composite optical waveguide lens

Info

Publication number: CN112213804B
Application number: CN202010919276.5A
Authority: CN
Inventors: 韩芳芳
Original assignee: Walnut Intelligent Technology Changzhou Co ltd
Current assignee: Walnut Intelligent Technology Changzhou Co ltd
Priority date: 2020-09-03
Filing date: 2020-09-03
Publication date: 2022-03-11
Anticipated expiration: 2040-09-03
Also published as: CN112213804A

Abstract

The invention belongs to the technical field of lenses, and particularly relates to a composite optical waveguide lens which comprises a substrate, a mother board and miniature orthogonal optical waveguide units, wherein the miniature orthogonal optical waveguide units are uniformly distributed on the side surface of the substrate, the side wall of the mother board is provided with a groove embedded with the miniature orthogonal optical waveguide units, the side wall of each miniature orthogonal optical waveguide unit is provided with a reflecting film, a plurality of miniature orthogonal optical waveguide units form a composite optical waveguide unit, and an equivalent negative refractive index lens is formed after the composite optical waveguide units are arrayed. According to the brand new composite optical waveguide unit provided by the invention, the light transmittance and the dispersion difference are controlled through structural separation, the simultaneous optimization is realized, and the waveguide unit is adopted to form an array and a lens, so that the imaging is clear, no ghost image exists, the resolution ratio is high, the structure is simple, the precision is high, the cost is low, and the popularization is easy.

Description

Composite optical waveguide lens

Technical Field

The invention belongs to the technical field of lenses, and particularly relates to a composite optical waveguide lens.

Background

At present, there are three main methods for realizing holographic air imaging in the market: firstly, through using some kind of medium in the air, the form of content projection on medium is realized air imaging through the projection again, and is a projected mode in essence, and the effect of formation of image is poor. And secondly, the air imaging is realized through the holographic film by utilizing the interference and diffraction principles of light, and the formed image can be watched and controlled inconveniently due to the blocking of the holographic film. And thirdly, the optical waveguide unit is utilized to form a lens to realize the equivalent negative refraction effect, so that air imaging is realized, the imaging mode is that a real image is not shielded, and the operation and the control are convenient, but the existing equivalent negative refractive index lens cannot realize high definition due to the limitation of the structure and the processing capability, has large imaging aberration and low resolution, and has the contradiction of large effective light transmittance and imaging aberration. The cost is high and the popularization is not easy; in view of the problems that the present lens is exposed to during use, there is a need for improvement and optimization of the structure of the lens.

Disclosure of Invention

In order to solve the problems in the prior art, the invention provides a composite optical waveguide lens which has the characteristic of effectively improving imaging definition.

In order to achieve the purpose, the invention provides the following technical scheme: a composite optical waveguide lens comprises a substrate, a mother board and micro orthogonal optical waveguide units, wherein the micro orthogonal optical waveguide units are uniformly distributed on the side surface of the substrate, grooves which are embedded with the micro orthogonal optical waveguide units are formed in the side wall of the mother board, a reflecting film is arranged on the side wall of each micro orthogonal optical waveguide unit, the micro orthogonal optical waveguide units form a composite optical waveguide unit, and an equivalent negative refractive index lens is formed after the composite optical waveguide unit is arrayed.

As a preferred technical scheme of the composite optical waveguide lens, the outer side surface of the miniature orthogonal optical waveguide unit is provided with a small structural unit.

According to the preferable technical scheme of the composite optical waveguide lens, the substrate and the motherboard are both cuboid components, and the substrate and the motherboard are kept parallel.

In a preferred embodiment of the composite optical waveguide lens according to the present invention, the orthogonal lines of all the micro orthogonal optical waveguide units are perpendicular to the side surfaces of the substrate and the motherboard.

As a preferable technical scheme of the composite optical waveguide lens, the size range of the array or arrangement unit of the micro orthogonal optical waveguide unit is 0.01-3.0 mm, and the size range of the array or arrangement interval of the small structural units is less than or equal to 1.0 mm.

Compared with the prior art, the invention has the beneficial effects that: the invention designs a brand new composite optical waveguide unit, realizes simultaneous optimization by controlling light transmittance and dispersion through structural splitting, and forms an array and a lens by adopting the waveguide unit, so that the imaging is clear, no ghost image exists, the resolution ratio is high, the structure is simple, the precision is high, the cost is low, and the popularization is easy. The holographic air imaging is really realized, the periphery of the imaged object is not shielded, the operation and the control are easy, the interaction effect is good, and the technological sense is strong; effectively solves the related problems of the prior products and the prior art.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic structural diagram of a composite optical waveguide lens according to the present invention;

FIG. 2 is a schematic side sectional view of a composite optical waveguide lens according to the present invention;

FIG. 3 is a schematic view of a fixing structure of a micro orthogonal optical waveguide unit according to the present invention;

FIG. 4 is a schematic diagram of a motherboard structure according to the present invention;

FIG. 5 is a schematic diagram of a rectangular composite optical waveguide unit structure according to the present invention;

FIG. 6 is a schematic structural diagram of an optical waveguide unit of an annular composite structure according to the present invention;

FIG. 7 is a schematic diagram of the imaging principle of the micro orthogonal optical waveguide unit according to the present invention;

in the figure: 1. a substrate; 2. a motherboard; 3. a micro orthogonal optical waveguide unit; 4. a small structural unit.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

Referring to fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5, the present invention provides the following technical solutions:

a composite optical waveguide lens comprises a substrate 1, a mother board 2 and a micro orthogonal optical waveguide unit 3, wherein the micro orthogonal optical waveguide unit 3 is uniformly distributed on the side surface of the substrate 1, a groove embedded with the micro orthogonal optical waveguide unit 3 is formed in the side wall of the mother board 2, a reflecting film is arranged on the side wall of the micro orthogonal optical waveguide unit 3, the micro orthogonal optical waveguide units 3 form a composite optical waveguide unit, an equivalent negative refractive index lens is formed behind the composite optical waveguide unit array, and the technical scheme effectively improves the imaging definition of the lens.

Specifically, base plate 1 and mother board 2 are the cuboid component, and base plate 1 and mother board 2 keep parallel, and parallel structure is convenient for reduce the interference to light in this embodiment.

Specifically, the orthogonal lines of all the micro orthogonal optical waveguide units 3 are perpendicular to the side surfaces of the substrate 1 and the motherboard 2, so that interference to light is avoided in the embodiment.

Specifically, the small structural units 4 are disposed on the outer side surfaces of the micro orthogonal optical waveguide units 3, and the protruding tooth angles between the small structural units 4 are all 90 °.

Specifically, the micro orthogonal optical waveguide unit 3 is a prism structure, the side surface of the micro orthogonal optical waveguide unit is a sheet structure, the small structural units 4 are linearly arranged, and the rectangular micro orthogonal optical waveguide unit 3 is combined to form a rectangular array, so that the micro orthogonal optical waveguide unit has the advantages of simple structure and good effect.

It should be noted that a plurality of micro orthogonal optical waveguide units 3 form a composite structure optical waveguide unit, the composite structure optical waveguide unit meets the design requirement of effective light transmittance, and the small structure unit 4 meets the requirements of high precision and high resolution.

Specifically, the size range of the array or arrangement unit of the micro orthogonal optical waveguide unit 3 is 0.01-3.0 mm, and the array or arrangement interval size of the small structural unit 4 is 1.0 mm.

Specifically, the array or arrangement unit size range of the micro orthogonal optical waveguide unit 3 is 3.0mm, and the array or arrangement interval size of the small structural unit 4 is 0.1 mm.

Specifically, the array or arrangement unit size range of the micro orthogonal optical waveguide unit 3 is 1.5mm, and the array or arrangement interval size of the small structural unit 4 is 0.5 mm.

As shown in fig. 3, the orthogonal lines of all the micro orthogonal optical waveguide units 3 are perpendicular to the plane of the lens, and the adjacent orthogonal lines have a certain overlap when viewed from the side of the lens.

As shown in fig. 5, the equivalent negative refractive index lens is formed after a plurality of optical waveguide unit arrays with composite structures are formed.

It should be noted that, as shown in fig. 7, light rays are reflected back in parallel in the plane of view, that is, light waves emitted from the light source are reflected twice by the orthogonal reflection film and then emitted in the symmetrical direction of the lens.

The imaging principle of the micro orthogonal optical waveguide unit array is as follows: light waves emitted by the light source are reflected twice by the orthogonal reflection films and then converged to the symmetrical position opposite to the lens again to form a real image.

Example 2

Referring to fig. 1, fig. 2 and fig. 6, the present invention provides the following technical solutions:

Specifically, the micro orthogonal optical waveguide unit 3 is of a cylindrical structure, the side surface of the micro orthogonal optical waveguide unit is of an arc structure, the small structural units 4 arranged in an arc shape are combined with the annular micro orthogonal optical waveguide unit 3 to form a concentric circular array, and the micro orthogonal optical waveguide unit has the advantages of being simple in structure and free of directivity.

In the technical scheme, the substrate 1, the motherboard 2 and the micro orthogonal optical waveguide unit 3 are made of glass or optical resin.

The production process of the scheme comprises the following steps: two mother boards 2 with coatings are adopted, a low-melting-point filling material with a refractive index similar to that of the mother boards 2 is selected and filled, and the two mother boards 2 after filling are oppositely clamped and bonded to form the composite optical waveguide lens.

The working principle and the using process of the invention are as follows: the point light source is reflected to the other side of the optical waveguide through each adjacent orthogonal tooth surface on the optical waveguide, each corresponding reflection is converged into one point again at the symmetrical position of the other side of the optical waveguide lens, and different points are converged again at the corresponding positions, so that a holographic point-line surface or three-dimensional holographic image is formed in the air.

The optical waveguide unit with the composite structure is arrayed to form a lens, the lens has an equivalent negative refractive index effect, the design requirement of effective light transmittance is met through the micro orthogonal optical waveguide unit 3 structure array, the high-precision purpose is realized through the small structure unit 4 array on the outer layer, and the advantage combination of high effective light transmittance and high imaging resolution is well realized; the light wave transmission path and the effective reflection area when penetrating of the conventional light waveguide unit are optimized and determined under the condition that the incident angle and the light waveguide thickness are fixed, in practical application, ideal parameter values cannot be found for ensuring the precision, the visual angle and process factors, therefore, after the effective reflection area of the light waveguide and the parameter requirements corresponding to the precision are structurally split, the parameter requirements of the high effective reflection area and the high imaging precision can be well met through the composite light waveguide unit, a user can see a high-resolution image displayed in the air, the technological sense and the visual impact are strong, the display effect is good, the controllability is strong, and the light waveguide unit is suitable for various advertisement displays, intelligent terminals and other related applications.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A compound optical waveguide lens, characterized in that: including base plate (1), mother board (2) and miniature quadrature optical waveguide unit (3), miniature quadrature optical waveguide unit (3) are evenly arranged the side surface of base plate (1), the lateral wall of mother board (2) seted up with the recess of miniature quadrature optical waveguide unit (3) gomphosis, the lateral wall of miniature quadrature optical waveguide unit (3) is equipped with the reflectance coating, and is a plurality of a composite construction optical waveguide unit is constituteed in miniature quadrature optical waveguide unit (3), form equivalent negative refractive index lens behind the composite construction optical waveguide unit array, little constitutional unit (4) have been seted up on the outside surface of miniature quadrature optical waveguide unit (3), protruding tooth angle between little constitutional unit (4) is 90.

2. A compound optical waveguide lens according to claim 1, wherein: the base plate (1) and the mother plate (2) are both cuboid components, and the base plate (1) and the mother plate (2) are kept parallel.

3. A compound optical waveguide lens according to claim 1, wherein: the orthogonal lines of all the miniature orthogonal optical waveguide units (3) are perpendicular to the side surfaces of the substrate (1) and the motherboard (2).

4. A compound optical waveguide lens according to claim 1, wherein: the size range of the array or arrangement unit of the micro orthogonal optical waveguide unit (3) is 0.01-3.0 mm, and the size range of the array or arrangement interval of the small structural unit (4) is less than or equal to 1.0 mm.