CN110146985B - Variable focal length AR glasses based on aspheric surface - Google Patents
Variable focal length AR glasses based on aspheric surface Download PDFInfo
- Publication number
- CN110146985B CN110146985B CN201811636293.7A CN201811636293A CN110146985B CN 110146985 B CN110146985 B CN 110146985B CN 201811636293 A CN201811636293 A CN 201811636293A CN 110146985 B CN110146985 B CN 110146985B
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- CN
- China
- Prior art keywords
- light guide
- gluing
- plane
- concave
- focal length
- Prior art date
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Links
- 239000011521 glass Substances 0.000 title claims abstract description 22
- 238000004026 adhesive bonding Methods 0.000 claims abstract description 61
- 239000007788 liquid Substances 0.000 claims abstract description 7
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 6
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 4
- 208000001491 myopia Diseases 0.000 abstract description 9
- 230000004379 myopia Effects 0.000 abstract description 9
- 239000003292 glue Substances 0.000 description 7
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 201000009487 Amblyopia Diseases 0.000 description 1
- 206010020675 Hypermetropia Diseases 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004305 hyperopia Effects 0.000 description 1
- 201000006318 hyperopia Diseases 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
- G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
- G02B26/0875—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light by means of one or more refracting elements
-
- 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
- G02B27/01—Head-up displays
- G02B27/017—Head mounted
- G02B27/0172—Head mounted characterised by optical features
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/32—Optical coupling means having lens focusing means positioned between opposed fibre ends
Abstract
The invention discloses aspheric-based variable focal length AR glasses. Comprising the following steps: the display comprises a display light source, a collimating lens, a planar light guide, a concave light guide with a concave center and a connecting lens for connecting the planar light guide and the concave light guide; the planar light guide is formed by gluing two light guides, the gluing plane is an inclined plane and is stuck with a semi-transparent and semi-reflective film, and the gluing plane in the planar light guide is marked as a first gluing plane; the concave light guide is formed by gluing a plurality of light guides, the gluing plane is an inclined plane and is stuck with a semi-transparent and semi-reflective film, the gluing plane in the concave light guide is marked as a second gluing plane, and the second gluing plane is positioned in the central depression of the concave light guide; the lens is connected, a chute is formed in the lens, liquid is sealed in the chute, and the chute is marked as an adjustable refraction surface; light emitted by the display light source sequentially passes through the collimating lens, the first gluing plane, the planar light guide, the adjustable refraction surface, the concave light guide and the second gluing plane and then is emitted. The invention is suitable for myopia people and has the characteristic of low cost.
Description
Technical Field
The invention relates to the field of optical devices, in particular to aspheric-based variable focal length AR glasses.
Background
AR technology has been developed for decades, but it has only gone into the field of view for nearly two years. The conventional AR glasses can realize various functions, but for people, especially people with amblyopia, hyperopia, myopia and other obstacles, the people need to add myopia lenses, and the AR glasses in the prior art have no better solution.
Disclosure of Invention
The invention aims to provide aspheric variable focal length AR glasses which can be suitable for myopia people and are low in cost.
In order to achieve the above object, the present invention provides the following solutions:
a display light source, a collimating lens, a planar light guide, a concave light guide with a concave center, and a connecting lens connecting the planar light guide and the concave light guide;
the planar light guide is formed by gluing two light guides, the gluing plane is an inclined plane, a semi-transparent and semi-reflective film is adhered to the gluing plane, and the gluing plane in the planar light guide is marked as a first gluing plane;
the concave light guide is formed by gluing a plurality of light guides, the gluing plane is an inclined plane and is stuck with a semi-transparent and semi-reflective film, the gluing plane in the concave light guide is marked as a second gluing plane, and the second gluing plane is positioned in the central depression of the concave light guide;
the connecting lens is internally provided with a chute, liquid is sealed in the chute, and the chute is marked as an adjustable refraction surface;
light emitted by the display light source is collimated by the collimating lens and then emitted to the first gluing plane, reflected by the first gluing plane and then transmitted in the plane light guide in a total reflection mode, reflected by the plane light guide and emitted to the adjustable refraction surface, refracted by the adjustable refraction surface and then enters the concave light guide, reflected by the concave light guide, transmitted in a total reflection mode and emitted to the second gluing plane, and reflected by the second gluing plane and then emitted.
Optionally, the concave light guide is formed by gluing two light guides, and the number of the second gluing planes is one.
Optionally, the concave light guide is formed by gluing more than two light guides, and the number of the second gluing planes is a plurality.
Optionally, a plurality of said second glue planes are mutually flat.
Optionally, the planar light guide is a silicon carbide light guide.
Optionally, the concave light guide is a silicon carbide light guide.
Optionally, the collimating lens is a focusing collimating lens and is a precision lens GCM-085820M.
Optionally, the connection lens is a precision lens GCM-085820M.
According to the specific embodiment provided by the invention, the invention discloses the following technical effects: the adjustable refraction surface and the concave light guide are additionally arranged in the light guide of the aspheric variable focal length AR glasses, the concave light guide can scatter light, so that a myopic person can see images clearly, the type of liquid in the adjustable refraction surface is adjusted, the refractive index of the adjustable refraction surface can be changed, the propagation track of light in the concave light guide is changed, and the focusing position of the light is changed, so that the experience of users with different myopia degrees is achieved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of an aspherical variable focal length AR glasses light guide structure according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an adjustable refractive surface according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention aims to provide aspheric variable focal length AR glasses which can be suitable for myopia people.
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description.
Fig. 1 is a schematic view of a light guide structure of an aspherical variable focal length AR glasses according to an embodiment of the present invention, and as shown in fig. 1, the aspherical variable focal length AR glasses provided by the present invention include a display light source 1, a collimating lens 2, a planar light guide 4, a concave light guide 8 with a concave center, and a connecting lens 5; the connection lens 5 is used for connecting the planar light guide 4 and the concave light guide 8, and the concave light guide 8 is processed by the planar light guide.
The plane light guide 4 is formed by gluing two light guides, the gluing plane is an inclined plane, a semi-transparent and semi-reflective film is attached to the gluing plane, and the gluing plane in the plane light guide 4 is marked as a first gluing plane 3; the first glue plane 3 is a specular reflection surface, which can provide a field of view with uniform brightness for the planar light guide, and the inclination angle setting of the first glue plane 3 is set based on the fact that light rays can be totally reflected and spread in the planar light guide after being reflected by the light rays.
The concave light guide 8 is formed by gluing a plurality of light guides, the gluing plane is an inclined plane and is stuck with a semi-transparent and semi-reflective film, the gluing plane in the concave light guide 8 is marked as a second gluing plane 7, and the second gluing plane 7 is positioned in the central depression of the concave light guide 8; the concave light guide 8 may focus the light.
The connecting lens 5 is internally provided with a chute, as shown in fig. 2, liquid is sealed in the chute, and the chute is marked as an adjustable refraction surface 6;
light emitted by the display light source 1 is collimated by the collimating lens 2, then is emitted to the first gluing plane 3, reflected by the first gluing plane 3, then is transmitted in a total reflection mode in the plane light guide 4, is emitted to the adjustable refraction surface 6 after passing through the plane light guide 4, is refracted by the adjustable refraction surface 6, enters the concave light guide 8, is emitted to the second gluing plane 7 after being transmitted in a total reflection mode of the concave light guide 8, and is emitted after being reflected by the second gluing plane 7.
The concave light guide 8 may be glued from two light guides, the number of second glue planes 7 being one. The concave light guide 8 may also be made of more than two light guides glued together, so that the number of second glue planes 7 is a plurality, the second glue planes 7 being mutually flat.
The display light source 1 can be a liquid crystal display light source, can be one of liquid crystal modules SYG320240L-C, and has the characteristic of low power consumption; the collimator lens 2 is a focusing collimator lens for focusing, and may be one of the precision lenses GCM-085820M. The first glue plane 3 may provide a field of view in the planar light guide 4 with a uniform brightness, one that is specular. The planar light guide 4 may be one of silicon carbide (SiC) light guides in which light propagates in a straight line without focusing. The connection lens 5 is also part of a planar light guide and may be one of the precision lenses GCM-085820M. The adjustable refractive surface 5 can change the refractive index of the adjustable refractive surface 5 by changing the sealing liquid therein, which is one of specular reflection. The concave light guide 8 may focus light, one of a silicon carbide (SiC) substrate.
The invention is based on refraction and reflection of light in the light guide, an adjustable refraction surface is added on the reflection path to change the propagation path of the light, and the planar light guide of the rear half part is processed into the aspheric shape of a concave lens to scatter the light, so that a myopic person can see the image clearly. When myopia of a myope is changed, the refractive index of the refractive surface in the light guide can be adjusted to change the focusing of light, so that the myope can still see the image clearly.
The variable focal length AR glasses based on the aspheric surface can be applied to myopia people, lenses are not required to be additionally arranged, lenses in the AR glasses are not required to be replaced even if the myopia degree of a user is changed, and only packaging liquid in an adjustable refractive surface is required to be replaced.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other.
The principles and embodiments of the present invention have been described herein with reference to specific examples, the description of which is intended only to assist in understanding the methods of the present invention and the core ideas thereof; also, it is within the scope of the present invention to be modified by those of ordinary skill in the art in light of the present teachings. In view of the foregoing, this description should not be construed as limiting the invention.
Claims (8)
1. An aspherical variable focal length AR glasses, comprising: a display light source, a collimating lens, a planar light guide, a concave light guide with a concave center, and a connecting lens connecting the planar light guide and the concave light guide;
the planar light guide is formed by gluing two light guides, the gluing plane is an inclined plane, a semi-transparent and semi-reflective film is adhered to the gluing plane, and the gluing plane in the planar light guide is marked as a first gluing plane;
the concave light guide is formed by gluing a plurality of light guides, the gluing plane is an inclined plane and is stuck with a semi-transparent and semi-reflective film, the gluing plane in the concave light guide is marked as a second gluing plane, and the second gluing plane is positioned in the central depression of the concave light guide;
the connecting lens is internally provided with a chute, liquid is sealed in the chute, and the chute is marked as an adjustable refraction surface;
light emitted by the display light source is collimated by the collimating lens and then emitted to the first gluing plane, reflected by the first gluing plane and then transmitted in the plane light guide in a total reflection mode, reflected by the plane light guide and emitted to the adjustable refraction surface, refracted by the adjustable refraction surface and then enters the concave light guide, reflected by the concave light guide, transmitted in a total reflection mode and emitted to the second gluing plane, and reflected by the second gluing plane and then emitted.
2. The aspherical variable focal length AR glasses according to claim 1, wherein the concave light guide is formed by gluing two light guides, and the number of the second gluing planes is one.
3. The aspherical variable focal length AR glasses according to claim 1 wherein the concave light guide is glued by more than two light guides, the number of the second gluing planes being plural.
4. The aspherical variable focal length AR glasses according to claim 3, wherein a plurality of the second gluing planes are mutually flat.
5. The aspheric based variable focal length AR glasses of claim 1 wherein the planar light guide is a silicon carbide light guide.
6. The aspheric based variable focal length AR glasses of claim 1 wherein the concave light guide is a silicon carbide light guide.
7. The aspheric based variable focal length AR glasses according to claim 1, wherein the collimating lens is a focusing collimating lens and is a precision lens GCM-085820M.
8. The aspherical variable focal length AR glasses according to claim 1, wherein the connection lens is a precision lens GCM-085820M.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811636293.7A CN110146985B (en) | 2018-12-29 | 2018-12-29 | Variable focal length AR glasses based on aspheric surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811636293.7A CN110146985B (en) | 2018-12-29 | 2018-12-29 | Variable focal length AR glasses based on aspheric surface |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110146985A CN110146985A (en) | 2019-08-20 |
| CN110146985B true CN110146985B (en) | 2024-03-26 |
Family
ID=67589424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811636293.7A Active CN110146985B (en) | 2018-12-29 | 2018-12-29 | Variable focal length AR glasses based on aspheric surface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110146985B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112147786B (en) * | 2020-10-28 | 2024-04-12 | 南京爱奇艺智能科技有限公司 | Augmented reality display system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101685171A (en) * | 2008-09-26 | 2010-03-31 | 中国科学院西安光学精密机械研究所 | Mechanical driven hybrid refractive-diffractive zooming liquid lens |
| CN102135643A (en) * | 2011-02-28 | 2011-07-27 | 南京邮电大学 | Pressure-control adjustable optical attenuator |
| CN104656258A (en) * | 2015-02-05 | 2015-05-27 | 上海理湃光晶技术有限公司 | Diopter-adjustable curved surface waveguide near-to-eye optical display device |
| CN105700143A (en) * | 2016-03-01 | 2016-06-22 | 陈超平 | Optical display device facing augment reality |
| CN106908953A (en) * | 2017-03-28 | 2017-06-30 | 陈超平 | A kind of binocular near-eye display device of integrated vision correction |
| CN209167697U (en) * | 2018-12-29 | 2019-07-26 | 深圳珑璟光电技术有限公司 | It is a kind of based on aspherical variable focal length AR glasses |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5108898B2 (en) * | 2007-02-02 | 2012-12-26 | Ｈｏｙａ株式会社 | Interfacial refraction adjusting lens (IRAL) |
| JP5686011B2 (en) * | 2011-03-22 | 2015-03-18 | セイコーエプソン株式会社 | Image relay optical system and virtual image display device including the same |
| WO2017073157A1 (en) * | 2015-10-28 | 2017-05-04 | ソニー株式会社 | Optical device, display device and method for manufacturing light emitting element |
-
2018
- 2018-12-29 CN CN201811636293.7A patent/CN110146985B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101685171A (en) * | 2008-09-26 | 2010-03-31 | 中国科学院西安光学精密机械研究所 | Mechanical driven hybrid refractive-diffractive zooming liquid lens |
| CN102135643A (en) * | 2011-02-28 | 2011-07-27 | 南京邮电大学 | Pressure-control adjustable optical attenuator |
| CN104656258A (en) * | 2015-02-05 | 2015-05-27 | 上海理湃光晶技术有限公司 | Diopter-adjustable curved surface waveguide near-to-eye optical display device |
| CN105700143A (en) * | 2016-03-01 | 2016-06-22 | 陈超平 | Optical display device facing augment reality |
| CN106908953A (en) * | 2017-03-28 | 2017-06-30 | 陈超平 | A kind of binocular near-eye display device of integrated vision correction |
| CN209167697U (en) * | 2018-12-29 | 2019-07-26 | 深圳珑璟光电技术有限公司 | It is a kind of based on aspherical variable focal length AR glasses |
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| Publication number | Publication date |
|---|---|
| CN110146985A (en) | 2019-08-20 |
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