CN204989637U - Optical wand is spared to dissipation spot - Google Patents
Optical wand is spared to dissipation spot Download PDFInfo
- Publication number
- CN204989637U CN204989637U CN201520524585.7U CN201520524585U CN204989637U CN 204989637 U CN204989637 U CN 204989637U CN 201520524585 U CN201520524585 U CN 201520524585U CN 204989637 U CN204989637 U CN 204989637U
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- Prior art keywords
- optical tunnel
- reflectance coating
- dissipation spot
- cylinder
- scattering
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- 230000003287 optical effect Effects 0.000 title claims abstract description 66
- 239000011248 coating agent Substances 0.000 claims abstract description 25
- 238000000576 coating method Methods 0.000 claims abstract description 25
- 239000000758 substrate Substances 0.000 claims description 11
- 238000007747 plating Methods 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 4
- 239000002245 particle Substances 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004544 sputter deposition Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
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- Optical Elements Other Than Lenses (AREA)
Abstract
The utility model provides an optical wand is spared to dissipation spot, includes the even optical wand body of column (1) that the printing opacity medium made the even optical wand body (1) lateral wall posts reflection of light face inward reflectance coating (2) outward, reflectance coating (2) inboard can set up the scattering micro -structure, if the scattering particle layer (3) of spreading, also can set up the scattering micro -structure in the hollow even optical wand body (1) lateral wall, like one section or several sections diffuse reflection face (4). Take place the scattering in the time of on the incident beam incides scattering particle layer, the diversification takes place for the angle of light beam, also has similar effect when incident beam incident diffuse reflection face to it is manifold to make final emergent ray angle from the outgoing of the even optical wand body, can reduce the laser speckle to a certain extent. The utility model discloses technical scheme has simple structure, advantage that the light utilization efficiency is high.
Description
Technical field
The utility model relates to laser projection display technology field, particularly a kind of optical tunnel effectively can eliminating laser speckle.
Background technology
Laser display technology is called forth generation display technique due to the colour gamut of its superelevation, but laser display technology has an obvious shortcoming, because laser has high coherence, so laser is radiated on screen can produce speckle, image quality can be had a strong impact on.Therefore the Speckles Technique that disappears is an important topic in laser display.
Disclose a kind of speckle eliminating device based on Mie scattering and magnetic control Particles Moving in CN102062953 patent of invention instructions, but there is the excessive problem of emergent light dispersion angle in its technical scheme, causes light utilization ratio low; The technical scheme using pure phase position diffractive optical element to complete dissipation spot function under the driving of electromagnetic oscillation device is disclosed in CN102122081 patent of invention instructions, but its apparatus structure more complicated.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, provides a kind of structure simply dissipation spot optical tunnel.
In order to solve the problems of the technologies described above, a kind of technical scheme of the present utility model is:
A kind of dissipation spot optical tunnel, comprise optical tunnel body, described optical tunnel body is the cylinder of light-permeable, is cylinder light guide within described cylinder outer wall, be coated with reflectance coating at the sidewall sections of the external wall of described optical tunnel, described reflectance coating is reflective surface towards the inner side of optical tunnel body; Scattering microstructure around cylinder light guide is set between described reflectance coating and cylinder light guide.
Preferably, described optical tunnel body is solid cylinder, and cylinder material is light transmission medium.Preferred further, described scattering microstructure is arranged at the medial surface of described reflectance coating.When using solid cylinder, when incident ray is behind optical tunnel body surface feeding sputtering inside, returned in optical tunnel body by the reflecting film reflects outside sidewall from the light of sidewall transmission, incide the light generation scattering of the scattering microstructure of reflectance coating, make the light angle be reflected back in cylinder have diversity.
Another is preferred, and described optical tunnel body is hollow cylinder.
Preferred further, described scattering microstructure is arranged at the medial surface of described reflectance coating and/or the medial surface of described optical tunnel body sidewall.In use when void column body, when incident ray is behind optical tunnel body surface feeding sputtering inside, arriving optical tunnel body sidewall scattering microstructure light can return in barred body with different angle corner reflections, being returned in optical tunnel body from the light of sidewall transmission by the reflecting film reflects outside sidewall, also can there is scattering in the some light wherein inciding the scattering microstructure of reflectance coating.
Preferably, described hollow cylinder is by plating reflectance coating substrate holder around forming.
Preferably, described scattering microstructure is continuous print one section or discrete several sections.Every section of scattering microstructure, around the light guide one week at barred body center, presents the tubular structure coaxial with optical tunnel body.
Preferably, described scattering microstructure is microscopic scatterers layer or diffuse surface.
Preferred further, described microscopic scatterers layer is the transparent substrate layer of surface distribution microscopic scatterers.
Preferably, described optical tunnel body is cubic prism.
Technical solutions of the utility model, scattering microstructure is added between the light guide and peripheral reflectance coating of optical tunnel, scattering is there is when incident ray incides in scattering microstructure, there is variation in the angle of light, thus finally from the light angle of optical tunnel outgoing be various, so laser speckle can be reduced to a certain extent.The program has the advantage that structure is simple, light utilization ratio is high.
Accompanying drawing explanation
Fig. 1 is that embodiment 1 dissipates spot optical tunnel structure front elevation;
Fig. 2 is that embodiment 1 dissipates spot optical tunnel structure side view;
Fig. 3 is that embodiment 1 dissipates spot optical tunnel principle of work schematic diagram;
Fig. 4 is embodiment 2 hollow dissipation spot optical tunnel structure front elevation;
Fig. 5 is embodiment 2 hollow dissipation spot optical tunnel principle of work schematic diagram;
Fig. 6 is the hollow dissipation spot optical tunnel structure front elevation that embodiment 4 uses microscopic scatterers layer;
Fig. 7 is the hollow dissipation spot optical tunnel structure side view that embodiment 4 uses microscopic scatterers layer.
Wherein:
1: optical tunnel body; 1-1: plating reflectance coating substrate holder; 2: reflectance coating; 3: microscopic scatterers layer; 3-1: transparent substrate layer; 3-2: microscopic scatterers; 4: diffuse surface;
A: incident ray; B: reflection ray; C: emergent ray.
Embodiment
The utility model is described further by embodiment below in conjunction with accompanying drawing, to understand the utility model better.
Embodiment 1
Be the basic structure of a kind of spot optical tunnel that dissipates of the utility model shown in Fig. 1 and 2, optical tunnel body adopts solid cubic prism, has two end faces and four sidewalls, and scattering microstructure adopts microscopic scatterers layer.
Post reflective surface reflectance coating 2 inwardly at four sidewalls of optical tunnel body 1, reflectance coating 2 medial surface has microscopic scatterers layer 3; Scattering can be there is when incident ray A incides on microscopic scatterers layer 3, as shown in Figure 3, thus cause the diversity of reflection ray B angle, finally from the angled diversity of emergent ray C tool of optical tunnel body 1 outgoing, this ray cast with multi-angle significantly can reduce laser speckle to display screen.
Embodiment 2
Be the basic structure of the utility model another kind of dissipation spot optical tunnel shown in Fig. 4, optical tunnel body adopts hollow four directions prism, and have two end faces and four sidewalls, scattering microstructure adopts diffuse surface.
Reflective surface reflectance coating 2 is inwardly posted outside four sidewalls of optical tunnel body 1; In the sidewall of the position, entrance port of optical tunnel body 1, arrange diffuse surface 4, the reflecting surface of diffuse surface 4 is inner towards optical tunnel body 1, and the sidewall diffuse surface of a week 4 forms cubic tubular structure; As shown in Figure 5, when incident ray A incides the different parts of diffuse surface 4, reflection ray B has different reflection angle, thus causes angle diversity.
Diffuse surface 4 is not necessarily arranged on entrance port place, also passable in other position of optical tunnel body 1, also can arrange multistage diffuse surface simultaneously.
Embodiment 3
The technical scheme of embodiment 1 with embodiment 2 can be applied simultaneously, namely diffuse surface is set in optical tunnel body sidewall, inside the reflectance coating simultaneously outside sidewall, microscopic scatterers layer is set.
Embodiment 4
Be the basic structure of the utility model another kind of dissipation spot optical tunnel shown in Fig. 6,7, optical tunnel body adopts hollow four directions prism, and have two end faces and four sidewalls, scattering microstructure adopts microscopic scatterers layer.
That form hollow cylinder outer wall is plating reflectance coating substrate holder 1-1, and its material can be glass, also can be other materials such as plastics; Post transparent substrate layer 3-1 in the inner side of plating reflectance coating substrate holder 1-1, this transparent substrate layer 3-1 is provided with the microscopic scatterers 3-2 of distribution, above-mentioned transparent substrate layer 3-1 and microscopic scatterers 3-2 forms microscopic scatterers layer 3 jointly.
All the other structure & working mechanism are identical with embodiment 2.
Should understand; above-described embodiment is only for illustrating technical conceive of the present utility model and feature; its object is to understand content of the present utility model for those skilled in the art and implement according to this, not embodiment is exhaustive, can not limit protection domain of the present utility model with this.Allly modify according to technical scheme of the present utility model or equivalent to replace, and not departing from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of right of the present utility model.
Claims (10)
1. a dissipation spot optical tunnel, comprises optical tunnel body (1), and the cylinder that described optical tunnel body (1) is light-permeable, is cylinder light guide within described cylinder outer wall, it is characterized in that:
Sidewall in described optical tunnel body (1) outer wall is coated with reflectance coating (2), and described reflectance coating (2) is reflective surface towards the inner side of optical tunnel body (1);
Scattering microstructure around cylinder light guide is set between described reflectance coating (2) and cylinder light guide.
2. dissipation spot optical tunnel according to claim 1, is characterized in that: described optical tunnel body (1) is solid cylinder, and cylinder material is light transmission medium.
3. dissipation spot optical tunnel according to claim 2, is characterized in that: described scattering microstructure is arranged at the medial surface of described reflectance coating (2).
4. dissipation spot optical tunnel according to claim 1, is characterized in that: described optical tunnel body (1) is hollow cylinder.
5. dissipation spot optical tunnel according to claim 4, is characterized in that: described hollow cylinder is by plating reflectance coating substrate holder (1-1) around forming.
6. dissipation spot optical tunnel according to claim 4, is characterized in that: described scattering microstructure is arranged at the medial surface of described reflectance coating (2) and/or the medial surface of described optical tunnel body (1) sidewall.
7. the dissipation spot optical tunnel according to any one of claim 1 to 6, is characterized in that: described scattering microstructure is continuous print one section or discrete several sections.
8. the dissipation spot optical tunnel according to any one of claim 1 to 6, is characterized in that: described scattering microstructure is microscopic scatterers layer (3) or diffuse surface (4).
9. dissipation spot optical tunnel according to claim 8, is characterized in that: the transparent substrate layer (3-1) that described microscopic scatterers layer (3) is surface distribution microscopic scatterers (3-2).
10. the dissipation spot optical tunnel according to any one of claim 1 to 6, is characterized in that: described optical tunnel body (1) is cubic prism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520524585.7U CN204989637U (en) | 2015-07-17 | 2015-07-17 | Optical wand is spared to dissipation spot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520524585.7U CN204989637U (en) | 2015-07-17 | 2015-07-17 | Optical wand is spared to dissipation spot |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204989637U true CN204989637U (en) | 2016-01-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520524585.7U Active CN204989637U (en) | 2015-07-17 | 2015-07-17 | Optical wand is spared to dissipation spot |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204989637U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113805404A (en) * | 2021-11-17 | 2021-12-17 | 滨州学院 | Uniform lighting device for line scanning photoelectric imaging |
| CN114839784A (en) * | 2022-04-14 | 2022-08-02 | 广东迪光医学科技有限公司 | Dodging device and laser equipment |
-
2015
- 2015-07-17 CN CN201520524585.7U patent/CN204989637U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113805404A (en) * | 2021-11-17 | 2021-12-17 | 滨州学院 | Uniform lighting device for line scanning photoelectric imaging |
| CN113805404B (en) * | 2021-11-17 | 2022-02-18 | 滨州学院 | Uniform lighting device for line scanning photoelectric imaging |
| CN114839784A (en) * | 2022-04-14 | 2022-08-02 | 广东迪光医学科技有限公司 | Dodging device and laser equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231127 Address after: 241000 Chungu 3D Printing Industrial Park, Fanchang Economic Development Zone, Wuhu City, Anhui Province Patentee after: Anhui Zhongke Spring Valley Laser Industry Technology Research Institute Co.,Ltd. Address before: 210038 A building, Longgang science and Technology Park, Heng Yuan Road, Nanjing economic and Technological Development Zone, Jiangsu Patentee before: NANJING INSTITUTE OF ADVANCED LASER TECHNOLOGY |
|
| TR01 | Transfer of patent right |