CN108572506A - Ultrashort out-of-focus projection's light film - Google Patents
Ultrashort out-of-focus projection's light film Download PDFInfo
- Publication number
- CN108572506A CN108572506A CN201810739430.3A CN201810739430A CN108572506A CN 108572506 A CN108572506 A CN 108572506A CN 201810739430 A CN201810739430 A CN 201810739430A CN 108572506 A CN108572506 A CN 108572506A
- Authority
- CN
- China
- Prior art keywords
- grating
- optical film
- grating fringe
- light
- fringe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000463 material Substances 0.000 claims abstract description 24
- 230000008033 biological extinction Effects 0.000 claims abstract description 15
- 239000012788 optical film Substances 0.000 claims abstract description 14
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims description 2
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 2
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 2
- 229920002554 vinyl polymer Polymers 0.000 claims description 2
- 241000216843 Ursus arctos horribilis Species 0.000 claims 1
- 239000010408 film Substances 0.000 abstract description 4
- 238000003384 imaging method Methods 0.000 abstract description 4
- 230000003287 optical effect Effects 0.000 description 2
- 238000002310 reflectometry Methods 0.000 description 2
- 238000012827 research and development Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/54—Accessories
- G03B21/56—Projection screens
- G03B21/60—Projection screens characterised by the nature of the surface
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Projection Apparatus (AREA)
Abstract
The present invention provides a kind of ultrashort out-of-focus projection's optical film, including base material, multiple grating fringes being arranged in juxtaposition are provided on one side surface of base material, grating fringe includes extinction grating fringe and reflecting grating striped, the extinction grating fringe grid line width is d, reflecting grating striped is more than d and to be less than or equal to 3d, the extinction grating fringe, reflecting grating striped is spaced successively, realize that angle of visibility is big using the optical film, and reduce the loss late of light, improve the utilization rate of light, and in terms of imaging, high-resolution is formed on imaging film using the light of structure reflection, high contrast, the image of high color reproduction degree, and the structure can absorb the stray light of ambient light and surrounding.
Description
Technical field
The present invention relates to light technical field of membrane more particularly to a kind of ultrashort out-of-focus projection's light films.
Background technology
With social work tempo increase, working conference is frequent and random, and great quantity of small meeting room rises；And room rate connects
Year is surging so that the parlor area of main carrying amusement attribute is difficult to rapid growth or even glides, and ultra short focal projector is gradual
Into in people’s lives environment.The projection of ultrashort coke may be implemented in ultra short focal projector, is greatly saved projector space, energy
Enough it is suitable for small-business place, home theater etc. and shows the limited occasion in space, it is mainly ultrashort by improving in the prior art
The camera lens of focus projector is projected the optical imagery formed inside projection light machine on specified curtain using optical principle, to carry
High projected picture quality.However the time length and R＆D costs put into this way is high, on the contrary, improving the matched projection used
Curtain can greatly shorten research and development time and cost, and there is problems for the matching of existing ultrashort burnt curtain and projector, such as
The light of projection light source projection on the screen is unevenly distributed, and contrast is low, and by the dry of the stray light of ambient light and surrounding
It disturbs, image quality is low, influences the visual effect of spectators.
Invention content
In order to solve the above technical problems, the present invention provides a kind of ultrashort out-of-focus projection's optical film, concrete scheme is as follows：
A kind of ultrashort out-of-focus projection's optical film, including base material are provided with multiple gratings being arranged in juxtaposition on one side surface of base material
Striped, grating fringe include extinction grating fringe and reflecting grating striped, and the extinction grating fringe grid line width is d, reflection
Grating fringe is more than d and to be less than or equal to 3d, and the extinction grating fringe, reflecting grating striped are spaced successively.
Wherein, it is equidistant between adjacent grating fringe.
Wherein, adjacent grating fringe distance values are between 0-10um.
Wherein, the material of the extinction grating fringe is a kind of material of absorptance 90% or more.
Wherein, the material of the reflecting grating striped is a kind of material of reflectivity 90% or more.
Wherein, the grating fringe is triangular grating striped.
Wherein, the grating fringe is camber line grating fringe.
Wherein, the material of the base material be PU, PP, it is PMMA, PET, PC, vinyl-based one or more.
The beneficial effects of the invention are as follows：It realizes that angle of visibility is big using the optical film, and reduces the loss late of light, improve light
Utilization rate high-resolution, high contrast, high color are formed on imaging film using the light of structure reflection and in terms of imaging
The image of color reduction degree, and the structure can absorb the stray light of ambient light and surrounding.
Description of the drawings
Fig. 1 is the structural side view of first embodiment of the invention；
Fig. 2 is first embodiment of the invention kind structural front view；
Fig. 3 is second embodiment of the invention kind structural side view.
Specific implementation mode
Embodiment one：
See Fig. 1 and Fig. 2, a kind of ultrashort out-of-focus projection's optical film, including base material 1, be provided on 1 one side surface of base material it is multiple simultaneously
The triangular grating striped 2 of arrangement is arranged, grating fringe 2 includes reflecting grating striped 21, extinction grating fringe 22, extinction gratings strips
22 grid line width of line is d, and reflecting grating striped 21 is more than d and to be less than or equal to 3d, extinction grating fringe 22, reflecting grating striped
21 is spaced successively, is equidistant between adjacent grating fringe 2, distance values are between 0-10um.
Embodiment two：
See Fig. 3, for embodiment two compared with embodiment one, difference is that the fence striped in embodiment one is triangle,
Fence striped in embodiment two is Arc stripe.
Preferentially, in both the above examples of implementation, the material of extinction grating fringe 22 is a kind of absorptance 90% or more
Material, the material of reflecting grating striped 21 is a kind of material of reflectivity 90% or more.
The structure working principle of the present invention：Fig. 1 and Fig. 3 are seen, when projector 3 projects light to screen, by echo area 21
Spectators 4 are projected to by reflection afterwards, implement to realize wide-angle leaded light, Er Qieguang for of the invention two kinds as seen from the figure
Line largely projects spectators 4, high gain, and the structure can absorb external ambient light.
It these are only the preferred embodiment of the present invention, be not intended to restrict the invention, for those skilled in the art
For member, the invention may be variously modified and varied.Any modification made by all within the spirits and principles of the present invention,
Equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of ultrashort out-of-focus projection's optical film, including base material, multiple gratings strips being arranged in juxtaposition are provided on one side surface of base material
Line, it is characterised in that：Grating fringe includes extinction grating fringe and reflecting grating striped, the extinction grating fringe grid line width
For d, reflecting grating striped is more than d and to be less than or equal to 3d, the extinction grating fringe, reflecting grating striped alternate row successively
Row.
2. projection optical film according to claim 1, it is characterised in that：It is equidistant between adjacent grating fringe.
3. projection optical film according to claim 2, it is characterised in that：Adjacent grating fringe distance values 0-10um it
Between.
4. projection optical film according to claim 1, it is characterised in that：The material of the extinction grating fringe is a kind of suction
Material of the light rate 90% or more.
5. projection optical film according to claim 1, it is characterised in that：The material of the reflecting grating striped is a kind of anti-
Penetrate material of the rate 90% or more.
6. according to the projection optical film described in claim 1-5 any one, it is characterised in that：The grating fringe is triangle
Grating fringe.
7. according to the projection optical film described in claim 1-5 any one, it is characterised in that：The grating fringe is camber line light
Grizzly bar line.
8. according to the projection optical film described in claim 1-5 any one, it is characterised in that：The material of the base material be PU,
It is PP, PMMA, PET, PC, vinyl-based one or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810739430.3A CN108572506A (en) | 2018-07-06 | 2018-07-06 | Ultrashort out-of-focus projection's light film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810739430.3A CN108572506A (en) | 2018-07-06 | 2018-07-06 | Ultrashort out-of-focus projection's light film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108572506A true CN108572506A (en) | 2018-09-25 |
Family
ID=63573791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810739430.3A Pending CN108572506A (en) | 2018-07-06 | 2018-07-06 | Ultrashort out-of-focus projection's light film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108572506A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112462569A (en) * | 2020-12-07 | 2021-03-09 | 苏州海盛翔和光显科技有限公司 | Multi-point touch light-resistant hard glass rear-projection ink crystal screen |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01245235A (en) * | 1988-03-28 | 1989-09-29 | Mitsubishi Rayon Co Ltd | Transmission screen and its production |
| JPH07326573A (en) * | 1994-04-06 | 1995-12-12 | Hitachi Ltd | Pattern forming method and projection aligner |
| JPH08152684A (en) * | 1994-11-30 | 1996-06-11 | Toppan Printing Co Ltd | Reflection type projection screen |
| JP2006301430A (en) * | 2005-04-22 | 2006-11-02 | Mitsubishi Electric Corp | Transmissive screen and projection type display apparatus |
| JP2007241263A (en) * | 2006-02-07 | 2007-09-20 | Dainippon Printing Co Ltd | Reflection screen |
| JP2008151854A (en) * | 2006-12-14 | 2008-07-03 | Dainippon Printing Co Ltd | Optical sheet |
| JP2009294563A (en) * | 2008-06-09 | 2009-12-17 | Toray Ind Inc | Film and display device using the same |
| US20120243096A1 (en) * | 2010-01-13 | 2012-09-27 | Panasonic Corporation | Diffraction grating lens and method of producing the same, and imaging device in which the same is used |
| JP2012252097A (en) * | 2011-06-01 | 2012-12-20 | Dainippon Printing Co Ltd | Reflective screen and reflective projection system |
| CN105180838A (en) * | 2015-09-29 | 2015-12-23 | 南京理工大学 | Quick fringe projection system based on DLP (Digital Light Procession) projector |
-
2018
- 2018-07-06 CN CN201810739430.3A patent/CN108572506A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01245235A (en) * | 1988-03-28 | 1989-09-29 | Mitsubishi Rayon Co Ltd | Transmission screen and its production |
| JPH07326573A (en) * | 1994-04-06 | 1995-12-12 | Hitachi Ltd | Pattern forming method and projection aligner |
| JPH08152684A (en) * | 1994-11-30 | 1996-06-11 | Toppan Printing Co Ltd | Reflection type projection screen |
| JP2006301430A (en) * | 2005-04-22 | 2006-11-02 | Mitsubishi Electric Corp | Transmissive screen and projection type display apparatus |
| JP2007241263A (en) * | 2006-02-07 | 2007-09-20 | Dainippon Printing Co Ltd | Reflection screen |
| JP2008151854A (en) * | 2006-12-14 | 2008-07-03 | Dainippon Printing Co Ltd | Optical sheet |
| JP2009294563A (en) * | 2008-06-09 | 2009-12-17 | Toray Ind Inc | Film and display device using the same |
| US20120243096A1 (en) * | 2010-01-13 | 2012-09-27 | Panasonic Corporation | Diffraction grating lens and method of producing the same, and imaging device in which the same is used |
| JP2012252097A (en) * | 2011-06-01 | 2012-12-20 | Dainippon Printing Co Ltd | Reflective screen and reflective projection system |
| CN105180838A (en) * | 2015-09-29 | 2015-12-23 | 南京理工大学 | Quick fringe projection system based on DLP (Digital Light Procession) projector |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112462569A (en) * | 2020-12-07 | 2021-03-09 | 苏州海盛翔和光显科技有限公司 | Multi-point touch light-resistant hard glass rear-projection ink crystal screen |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |