CN108802892A - A kind of multiple-piece optical waveguide input scheme - Google Patents
A kind of multiple-piece optical waveguide input scheme Download PDFInfo
- Publication number
- CN108802892A CN108802892A CN201810589661.0A CN201810589661A CN108802892A CN 108802892 A CN108802892 A CN 108802892A CN 201810589661 A CN201810589661 A CN 201810589661A CN 108802892 A CN108802892 A CN 108802892A
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- China
- Prior art keywords
- optical waveguide
- parallel
- light
- input scheme
- piece
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- 230000003287 optical effect Effects 0.000 title claims abstract description 39
- 230000008676 import Effects 0.000 claims description 9
- 230000000007 visual effect Effects 0.000 abstract description 2
- 238000003384 imaging method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- 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
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
- G02B6/0025—Diffusing sheet or layer; Prismatic sheet or layer
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Elements Other Than Lenses (AREA)
Abstract
The invention discloses a kind of multiple-piece optical waveguide input schemes.Enough light input waveguides, enough visual field width input waveguides can be allowed more to can ensure that picture characteristics is constant.
Description
Technical field
The present invention relates to a kind of optical waveguide input schemes, more particularly, to a kind of multiple-piece optical waveguide input scheme.
Background technology
When optical waveguide inputs light, existing way is that light is directly entered waveguide, or enters waveguide after reflection,
But in the optical waveguide for imaging, these methods can cause to input the very few influence image quality of light or picture characteristics
It is restricted.
Invention content
The present invention is directed to the optical waveguide for imaging, proposes a kind of multiple-piece optical waveguide input scheme.This scheme can ensure that
Sufficiently wide light input waveguide also can guarantee that picture characteristics is constant.
The invention is realized by the following technical scheme：
A kind of multiple-piece optical waveguide input scheme, including light wave import optical section, one or more pieces parallelogram prisms.
Wherein light wave imports optical section, is the inclined-plane that there is certain angle in optical waveguide side.
The angle of inclination satisfaction for entering optical section allows incident ray to generate reflection between medium.
Parallelogram prism imports optical section with light wave and is bonded, and intermediate there are dielectric gap, multiple parallelogram ribs
It mutually fits between mirror, intermediate there are dielectric gaps.
Parallelogram prism can be a piece of or multi-disc, and refractive index is identical as waveguide.
For gap dielectric refractive index well below waveguide, gap can be that air can also be low-refraction material.
Parallelogram prism and optical waveguide are arranged in parallel, and multiple parallelogram prisms form one with optical waveguide main body
Complete planar light waveguide.
Multiple gaps in complete planar light waveguide form multiple reflectings surface, these reflectings surface are parallel to each other, with light wave
It is angled to lead direction.
The principle of the present invention is：
Light vertical irradiation is inputted to planar light waveguide side, a part of light is radiated at light wave and imports optical section, and a part is shone
Penetrate the inclined-plane gap reflecting surface in parallelogram prism.
It is radiated at light wave and imports the light of optical section and reflected and be directly entered optical waveguide.
It is irradiated to the light of parallelogram prism hypotenuse/facet surfaces, parallel four side is first reached by the reflection of parallelogram prism hypotenuse/facet surfaces
Shape prism bottom edge.
The light for reaching bottom edge is totally reflected again, and the reflecting surface in other gaps, this time are entered with subvertical angle
Line largely passes through, and small part is reflected.
This light may enter optical waveguide by one or more gap reflectings surface.
By increasing parallelogram number of prisms, the light line width into optical waveguide can be increased.
The beneficial effects of the invention are as follows：In the light guides for imaging, it can ensure that enough light inputs, enough
Visual field width inputs, while can guarantee that picture characteristics is not changed.
Description of the drawings
Fig. 1 is the principle of the present invention figure.
Specific implementation mode
Technical scheme of the present invention is further described below in conjunction with the accompanying drawings.
As shown in Figure 1：C is the section of planar lightwave conductor, and A, B are two parallelogram prisms.
3,4,5 reflecting surface formed for low index gap in figure, wherein 3 place faces, which are light waves, imports optical section.
Three arrows vertically downward are incident ray direction.
When incident ray, which is radiated at light wave, imports optical section：As shown, light 1 by reflective surface at light 2 into
Enter optical waveguide.
When incident ray is radiated at parallelogram prism：As shown, light 6 is reflected by reflecting surface 5, light is formed
7 reach bottom edge, and the light for reaching bottom edge is totally reflected, and form light 8, and light 8 passes through reflecting surface 4 and 3 to enter optical waveguide.
Embodiment described above is only that the preferred embodiment of the present invention is described, not to the model of the present invention
It encloses and is defined, under the premise of not departing from design spirit of the present invention, technical side of the those of ordinary skill in the art to the present invention
The various modifications and improvement that case is made should all be fallen into the protection domain of claims of the present invention determination.
Claims (6)
1. a kind of multiple-piece optical waveguide input scheme, it is characterised in that：Optical section is imported including light wave, one or more pieces parallel four
Side shape prism.
2. a kind of multiple-piece optical waveguide input scheme according to claim 1, it is characterised in that the light wave imports light and cuts
There is gap between face and parallelogram prism, gap dielectric refractive index is well below optical waveguide.
3. a kind of multiple-piece optical waveguide input scheme according to claim 1, it is characterised in that the light wave imports light and cuts
Face is tilted a certain angle, and angle of inclination, which meets, allows incident ray to generate enough reflections between medium.
4. a kind of multiple-piece optical waveguide input scheme according to claim 1, it is characterised in that parallel four side of the multi-disc
Two inclined-planes of shape prism are parallel with light wave importing optical section, in addition two sides and optical waveguide two sides parallel co-planar, multi-disc parallel four
Side shape prism and optical waveguide main body form a complete planar light waveguide.
5. a kind of multiple-piece optical waveguide input scheme according to claim 1, it is characterised in that parallel four side of the multi-disc
Shape prism can be a piece of or multi-disc, and refractive index is identical as optical waveguide.
6. a kind of multiple-piece optical waveguide input scheme according to claim 1, it is characterised in that parallel four side of the multi-disc
Shape prism is arranged in parallel, has gap between parallelogram prism, gap dielectric refractive index is well below optical waveguide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810589661.0A CN108802892A (en) | 2018-06-08 | 2018-06-08 | A kind of multiple-piece optical waveguide input scheme |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810589661.0A CN108802892A (en) | 2018-06-08 | 2018-06-08 | A kind of multiple-piece optical waveguide input scheme |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108802892A true CN108802892A (en) | 2018-11-13 |
Family
ID=64087937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810589661.0A Pending CN108802892A (en) | 2018-06-08 | 2018-06-08 | A kind of multiple-piece optical waveguide input scheme |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108802892A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111323864A (en) * | 2018-12-14 | 2020-06-23 | 施轩杰 | Triangular waveguide scheme |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101963703A (en) * | 2009-07-22 | 2011-02-02 | 索尼公司 | Image display device and optical devices |
| CN102590927A (en) * | 2011-11-30 | 2012-07-18 | 友达光电股份有限公司 | Light guide plate structure and backlight module using same |
| CN103507639A (en) * | 2012-06-27 | 2014-01-15 | 比亚迪股份有限公司 | Vehicle-mounted display equipment and vehicle with vehicle-mounted display equipment |
| CN103649823A (en) * | 2011-05-27 | 2014-03-19 | 谷歌公司 | Image relay waveguide and method of producing same |
| US8743464B1 (en) * | 2010-11-03 | 2014-06-03 | Google Inc. | Waveguide with embedded mirrors |
| CN107861243A (en) * | 2016-09-21 | 2018-03-30 | 精工爱普生株式会社 | Optical element and display device |
-
2018
- 2018-06-08 CN CN201810589661.0A patent/CN108802892A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101963703A (en) * | 2009-07-22 | 2011-02-02 | 索尼公司 | Image display device and optical devices |
| US8743464B1 (en) * | 2010-11-03 | 2014-06-03 | Google Inc. | Waveguide with embedded mirrors |
| CN103649823A (en) * | 2011-05-27 | 2014-03-19 | 谷歌公司 | Image relay waveguide and method of producing same |
| CN102590927A (en) * | 2011-11-30 | 2012-07-18 | 友达光电股份有限公司 | Light guide plate structure and backlight module using same |
| CN103507639A (en) * | 2012-06-27 | 2014-01-15 | 比亚迪股份有限公司 | Vehicle-mounted display equipment and vehicle with vehicle-mounted display equipment |
| CN107861243A (en) * | 2016-09-21 | 2018-03-30 | 精工爱普生株式会社 | Optical element and display device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111323864A (en) * | 2018-12-14 | 2020-06-23 | 施轩杰 | Triangular waveguide scheme |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20181113 |
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| WD01 | Invention patent application deemed withdrawn after publication |