CN104111580A - Horizontal back family black gate or fresnel back family stripe reflection projection screen - Google Patents
Horizontal back family black gate or fresnel back family stripe reflection projection screen Download PDFInfo
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- CN104111580A CN104111580A CN201310160529.5A CN201310160529A CN104111580A CN 104111580 A CN104111580 A CN 104111580A CN 201310160529 A CN201310160529 A CN 201310160529A CN 104111580 A CN104111580 A CN 104111580A
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Abstract
The invention provides a horizontal back family black gate or fresnel back family stripe reflection projection screen, and belongs to the technical field of geometrical optics. Ambient light rays influencing an indoor screen mostly come from a specific area. Most of ambient light is enabled to come from a horizontal direction, a ground direction or a ceiling direction via decoration and lighting arrangement. The technical route is that ambient light is guided to a projection machine direction rather than an audience area via horizontal back family reflection strips or fresnel back family stripe reflection strips apart from black gate light absorption. High image contrast ratio can be acquired via paying attention to reduction of ambient light amount of areas near the installation position of the projection machine. Vertical black gates arranged between two micro cylinder surfaces are processed on the surface layer of the screen so that ambient light of side surfaces can be further absorbed. Contribution to contrast ratio mostly comes from annular deflection of ambient light so that the screen is more suitable for short-focus and wide-angle projection situations and can be widely applied to various front projection occasions.
Description
The invention belongs to optics and manufacture field: definite says: be a kind of front projection screen surround lighting weak reflection and depart from the architecture advances of reflection.
The state of the art of projection screen at present:
The representative products that carries out in the world direct extinction processing on front projection curtain is Xi'an Bei Guang company: be extinction secret note and the prism bar that is directly added with horizontal direction at screen cover to the surface of projector, absorption that can be good is from the surround lighting of upper half, obtain good contrast with sacrificing luminance greatly, need the lumen number of the projector of several times, just can reach required picture brightness.
The object of the invention is to solve the weak point of prior art: adopt different technology paths: except the surround lighting of black grid absorbs thinking, be that black grid extinction comprises: the black grid of You Bei family have again and near screen top layer, are processed with vertical black grid, jointly absorb except the component environment light from projector's direction, also introduce herein by level and carry on the back family's reflection bar or Fresnel back of the body family line reflection bar by surround lighting lead projector's direction instead of spectators region, make the contribution of most of contrast from the angular deflection to surround lighting, in a broad sense: the improvement of surround lighting is adopted to combining the two ways of dredging and plugging, dredge (deflection environment light direction) and not too injure brightness, contrast also promotes to some extent, stifled (directly absorbing environmental light) is easy to injure brightness, but contrast lifting is huge, if 2 organically combinations, should obtain large contrast improvement and possess as much as possible again brightness, using under low lumen projection machine, even if be exposed under stronger surround lighting, obtain and be satisfied with image quality!
Feature of the present invention:
Note the state in the surround lighting source that arranges the indoor screen of impact, as long as notice that the environment luminous quantity of subduing projector's installation site near zone can obtain high picture contrast, thereby be more suitable for, in short burnt wide-angle projection situation, can being widely used in all kinds of front projections place.
Key problem in technology of the present invention:
In structure, adopt: front top layer (1), level back of the body family reflection bar, black grid or Fresnel are carried on the back family's lamina (2), can be had substrate layer (3); In front top layer (1), be processed with the vertical cylinder in top layer (5), the vertical black grid of extinction (4); And in front top layer (1) or bottom or surface or be added with scattering particles or scattering particles layer in black grid or Fresnel back of the body family's lamina (2) or between (1) and (2) layer; And be processed with at black grid or Fresnel back of the body family's lamina (2): the black grid of level back of the body family reflecting surface (containing Fresnel reflection face) (6) and level back of the body family (containing the black grid of Fresnel) (7).
2 kinds of curtains of this technical support: level back of the body family's black grid reflective projection screen and horizontal Fresnel back of the body family line reflective projection screen:
Level back of the body family black grid reflective projection screen; Its basic structure is: by front top layer (1), level back of the body family reflection bar, black grid layer (2); In front top layer (1), be processed with the vertical cylinder in top layer (5), (5) can be also plane, the vertical black grid of extinction (4); Also can be there is no independently level back of the body family reflection bar, black grid layer (2), be to be directly processed with level back of the body family reflection bar, black grid layer structure on another surface of front top layer (1); In (1) or (2) layer or between (1) and (2) layer, be added with scattering particles or scattering particles layer; And level back of the body family reflection bar, family's reflection bar (6) of black grid layer (2), black grid (7) are all horizontal; When the projected light (9) of sending when projector (8) projects screen surface; The vertical cylinder in top layer (5) plays the effect of lens, to make it converge, when propagation, be scattered particle and carried out certain scattering, then by after level back of the body family's reflection bar (6) reflection inferior through scattering particles or scattering particles layer, finally again by the vertical cylinder in top layer (5) scattering, as: the reflection ray (10) of projected light; Due to the relation of crevice projection angle; Can most ofly be sponged by black grid (7) in (2) for ground environment light (11); The part of side ring environmental light (12) or the vertical black grid of extinction (4) of most of quilt sponge; In addition: from the surround lighting except near orientation projector, still can be projected near projector by most of light of the vertical cylinder in top layer (5) refraction outgoing again after the level back of the body family reflection bar reflection on it by (2) through superrefraction diffusion etc., instead of auditorium; This technology cannot suppress the ambient light from projector orientation, thereby adopts as far as possible short Jiao and from axle wide-angle mode of delivery, the angle of the projectional angle of projector and the normal of screen is the bigger the better; Choosing of vertical black grid yardstick, will depend on the aggregate capabilities of the vertical cylinder in top layer (5) as lens, and the larger suction surround lighting of size characteristic is better, but excessively also increasing slowly be added to absorption projected light; The scattering degree of granule proliferation or layer is chosen should be moderate, the vertical cylinder in top layer (5) lens will increase the diffusivity of horizontal direction, and vertical diffusivity also can complete by certain curve form of the level back of the body family's reflection bar (6) on (2); It may be noted that: black grid (7) and black grid (4) can not use, and can bring the convenience of a little processing; It is characterized in that: in the front top layer (1) of screen, be processed with the black grid of vertical extinction (4); Top layer in front top layer (1) can be that vertical cylinder (5) can be also plane; Be provided with level back of the body family reflection bar, black grid layer (2) in front top layer (1), this layer (2) can be layer load independently, can be also directly on another surface in front top layer (1), to be processed with level back of the body family reflection bar, black grid layer structure; Level back of the body family's reflection bar (6) can be that plane can be also curved surface; At level back of the body family reflection bar, black grid layer (2) and in front top layer (1), can use black grid (7) and black grid (4), also can not use black grid, with the institute's material that uses filling of reflector layer and front top layer (1); Between the vertical cylinder in top layer (5) and level back of the body family's reflection bar (6), be filled with scattering particles.
Horizontal Fresnel is carried on the back family's line reflective projection screen; Its basic structure is: by front top layer (1), Fresnel back of the body lamina (2); In front top layer (1), be processed with the vertical cylinder in top layer (5), (5) can be also plane, the vertical black grid of extinction (4); Also can be there is no independently Fresnel back of the body lamina (2), be to be directly processed with level back of the body family reflection bar, black grid layer structure on another surface of front top layer (1); In (1) or (2) layer or between (1) and (2) layer, be added with scattering particles or scattering particles layer; And family's reflection bar (6), the black grid (7) of Fresnel back of the body lamina (2) are all horizontal; When the projected light (9) of sending when projector (8) projects screen surface; The vertical cylinder in top layer (5) plays the effect of lens, to make it converge, when propagation, be scattered particle and carried out certain scattering, then by after level back of the body family's reflection bar (6) reflection inferior through scattering particles or scattering particles layer, finally again by the vertical cylinder in top layer (5) scattering, as: the reflection ray (10) of projected light; Due to the relation of crevice projection angle; Can most ofly be sponged by black grid (7) in (2) for ground environment light (11); The part of side ring environmental light (12) or the vertical black grid of extinction (4) of most of quilt sponge; In addition: from the surround lighting except near orientation projector, still can be projected near projector by most of light of the vertical cylinder in top layer (5) refraction outgoing again after the level back of the body family reflection bar reflection on it by (2) through superrefraction diffusion etc., instead of auditorium; This technology cannot suppress the ambient light from projector orientation, thereby adopts as far as possible short Jiao and from axle wide-angle mode of delivery, the angle of the projectional angle of projector and the normal of screen is the bigger the better; Choosing of vertical black grid yardstick, will depend on the aggregate capabilities of the vertical cylinder in top layer (5) as lens, and the larger suction surround lighting of size characteristic is better, but excessively also increasing slowly be added to absorption projected light; The scattering degree of granule proliferation or layer is chosen should be moderate, the vertical cylinder in top layer (5) lens will increase the diffusivity of horizontal direction, and vertical diffusivity also can complete by certain curve form of the level back of the body family's reflection bar (6) on (2); It may be noted that: black grid (7) and black grid (4) can not use, and can bring the convenience of a little processing; Its technical characterictic is: in the front top layer (1) of screen, be processed with the black grid of vertical extinction (4); Top layer in front top layer (1) can be that vertical cylinder (5) can be also plane; Be provided with Fresnel back of the body lamina (2) in front top layer (1), this layer (2) can be layer load independently, can be also directly on another surface in front top layer (1), to be processed with level back of the body family reflection bar, black grid layer structure; Level back of the body family's reflection bar (6) can be that plane can be also curved surface; At Fresnel back of the body lamina (2) and in front top layer (1), can use black grid (7) and black grid (4), also can not use black grid, with the institute's material that uses filling of reflector layer and front top layer (1); Between the vertical cylinder in top layer (5) and level back of the body family's reflection bar (6), be filled with scattering particles.
Scattering particles in 2 kinds of curtains; Refer to and be dispersed in the medium inside of (1) and (2) or be clipped in the independent scattering particles layer between (1) and (2).
Choosing of vertical black grid yardstick, will depend on the aggregate capabilities of the vertical cylinder in top layer (5) as lens, and the larger suction surround lighting of size characteristic is better, but excessively also increasing slowly be added to absorption projected light.
The scattering degree of granule proliferation or layer is chosen should be moderate; the vertical cylinder in top layer (5) lens will increase the diffusivity of horizontal direction, and vertical diffusivity also can complete by the level back of the body family's reflection bar on (2) or certain curve form of Fresnel back of the body family's lamina reflection bar (6).
In front top layer (1), being processed with the vertical cylinder in top layer (5) can not be the face of cylinder, can be plane.
Below in conjunction with accompanying drawing, with regard to 1 preferred embodiment of the present invention, the invention will be further described:
Fig. 1 level back of the body family reflection bar, black grid or the anti-surround lighting basic principle schematic of Fresnel back of the body family's line.
Fig. 21 body level back of the body black grid of family or Fresnel back of the body family line front projection screen structural representation.
Fig. 32 body level back of the body black grid of family or Fresnel back of the body family line front projection screen structural representation.
The explanation of diagram numbering:
(1) front top layer
(2) level back of the body family reflection bar, the level back of the body black grid of family or Fresnel back of the body family lamina
(3) substrate layer
(4) the vertical black grid of extinction
(5) the vertical cylinder in top layer
(6) level back of the body family reflecting surface (containing Fresnel reflection face)
(7) the black grid of level back of the body family (containing the black grid of Fresnel)
(8) projector
(9) projected light
(10) reflection ray of projected light
(11) ground environment light
(12) side ring environmental light
As shown in Figure 1:
The important step that realizes core technology by: level back of the body family reflection bar, the level back of the body black grid of family or Fresnel back of the body family's lamina (2) complete.
Horizontal texture shown in E, F in Fig. 1, (6) are the level back of the body family reflectings surface (containing Fresnel reflection face) in (2); (7) be the black grid of level back of the body family (containing the black grid of Fresnel) in (2).
G in Fig. 1 is the sectional view at the MN place of (2), clearly shows the position of (6) and (7), the material that reflection horizon (6) can be aluminium, silver-colored isoreflectance is high; Light-absorption layer (7) is the light absorbent such as black dyes etc.
The projected light (9) that projector (8) sends can be most of by (6) reflection; As shown in the reflection ray of projected light (10).
Ground environment light (11) and side ring environmental light (12) can most ofly be absorbed by black grid (7), will be projected projector's near zone by the major part of (6) reflection.
No matter be that level back of the body family reflection bar, the level back of the body black grid of family or Fresnel back of the body family's lamina (2) can be the structures of angle gradient; Along with the increasing gradually with the folded angle of screen plane away from, reflecting surface (6) of projector.
As shown in Figure 2:
In structure, adopt: front top layer (1), level back of the body family reflection bar, black grid or Fresnel are carried on the back family's lamina (2), can be had substrate layer (3); In front top layer (1), be processed with the vertical cylinder in top layer (5), the vertical black grid of extinction (4); And in front top layer (1) or bottom or surface or be added with scattering particles or scattering particles layer in black grid or Fresnel back of the body family's lamina (2) or between (1) and (2) layer; And be processed with at black grid or Fresnel back of the body family's lamina (2): the black grid of level back of the body family reflecting surface (containing Fresnel reflection face) (6) and level back of the body family (containing the black grid of Fresnel) (7).
When the projected light (9) of sending when projector (8) projects screen surface; The vertical cylinder in top layer (5) plays the effect of lens; to make it converge; when propagation, be scattered particle and carried out certain scattering; in the time propagating into black grid or Fresnel back of the body family's lamina (2); its most of light by (2) after the level back of the body family reflection bar reflection on it inferior through scattering particles or scattering particles layer; finally again by the vertical cylinder in top layer (5) scattering, as: the reflection ray (10) of projected light.
Due to the relation of crevice projection angle; Can most ofly be sponged by the black grid in black grid in (2) or Fresnel back of the body family lamina for ground environment light (11).
The part of side ring environmental light (12) or the vertical black grid of extinction (4) of most of quilt sponge.
In addition: from the surround lighting except near orientation projector, still can be projected near projector by most of light of the vertical cylinder in top layer (5) refraction outgoing again after the level back of the body family reflection bar reflection on it by (2) through superrefraction diffusion etc., instead of auditorium.
This technology cannot suppress the ambient light from projector orientation, thereby adopts as far as possible short Jiao and from axle wide-angle mode of delivery, the angle of the projectional angle of projector and the normal of screen is the bigger the better.
In fact: level back of the body family reflection bar, black grid or Fresnel back of the body family's lamina (2) can directly be processed on the bottom surface of front top layer (1) completely, and form 1 body structure.
As shown in Figure 3:
(1) is front top layer equally, (2) be level back of the body family reflection bar, the level back of the body black grid of family or Fresnel back of the body family lamina, (3) substrate layer, (4) the vertical black grid of extinction, (5) the vertical cylinder in top layer, (6) level back of the body family reflecting surface (containing Fresnel reflection face), (7) the black grid of level back of the body family (containing the black grid of Fresnel), (8) projector (9) projected light, (10) reflection ray of projected light, (11) ground environment light, (12) side ring environmental light.
Difference is: on the surface of level back of the body family reflection bar, black grid or Fresnel back of the body family's lamina (2) processing substrate layer (3), can pass through the bonding unification of transparent glue again.
Claims (3)
1. level back of the body family black grid reflective projection screen; Its basic structure is: by front top layer (1), level back of the body family reflection bar, black grid layer (2); In front top layer (1), be processed with the vertical cylinder in top layer (5), (5) can be also plane, the vertical black grid of extinction (4); Also can be there is no independently level back of the body family reflection bar, black grid layer (2), be to be directly processed with level back of the body family reflection bar, black grid layer structure on another surface of front top layer (1); In (1) or (2) layer or between (1) and (2) layer, be added with scattering particles or scattering particles layer; And level back of the body family reflection bar, family's reflection bar (6) of black grid layer (2), black grid (7) are all horizontal; When the projected light (9) of sending when projector (8) projects screen surface; The vertical cylinder in top layer (5) plays the effect of lens, to make it converge, when propagation, be scattered particle and carried out certain scattering, then by after level back of the body family's reflection bar (6) reflection inferior through scattering particles or scattering particles layer, finally again by the vertical cylinder in top layer (5) scattering, as: the reflection ray (10) of projected light; Due to the relation of crevice projection angle; Can most ofly be sponged by black grid (7) in (2) for ground environment light (11); The part of side ring environmental light (12) or the vertical black grid of extinction (4) of most of quilt sponge; In addition: from the surround lighting except near orientation projector, still can be projected near projector by most of light of the vertical cylinder in top layer (5) refraction outgoing again after the level back of the body family reflection bar reflection on it by (2) through superrefraction diffusion etc., instead of auditorium; This technology cannot suppress the ambient light from projector orientation, thereby adopts as far as possible short Jiao and from axle wide-angle mode of delivery, the angle of the projectional angle of projector and the normal of screen is the bigger the better; Choosing of vertical black grid yardstick, will depend on the aggregate capabilities of the vertical cylinder in top layer (5) as lens, and the larger suction surround lighting of size characteristic is better, but excessively also increasing slowly be added to absorption projected light; The scattering degree of granule proliferation or layer is chosen should be moderate, the vertical cylinder in top layer (5) lens will increase the diffusivity of horizontal direction, and vertical diffusivity also can complete by certain curve form of the level back of the body family's reflection bar (6) on (2); It may be noted that: black grid (7) and black grid (4) can not use, and can bring the convenience of a little processing; Its feature is just: in the front top layer (1) of screen, be processed with the black grid of vertical extinction (4); Top layer in front top layer (1) can be that vertical cylinder (5) can be also plane; Be provided with level back of the body family reflection bar, black grid layer (2) in front top layer (1), this layer (2) can be layer load independently, can be also directly on another surface in front top layer (1), to be processed with level back of the body family reflection bar, black grid layer structure; Level back of the body family's reflection bar (6) can be that plane can be also curved surface; At level back of the body family reflection bar, black grid layer (2) and in front top layer (1), can use black grid (7) and black grid (4), also can not use black grid, with the institute's material that uses filling of reflector layer and front top layer (1); Between the vertical cylinder in top layer (5) and level back of the body family's reflection bar (6), be filled with scattering particles.
2. horizontal Fresnel is carried on the back family's line reflective projection screen; Its basic structure is: by front top layer (1), Fresnel back of the body lamina (2); In front top layer (1), be processed with the vertical cylinder in top layer (5), (5) can be also plane, the vertical black grid of extinction (4); Also can be there is no independently Fresnel back of the body lamina (2), be to be directly processed with level back of the body family reflection bar, black grid layer structure on another surface of front top layer (1); In (1) or (2) layer or between (1) and (2) layer, be added with scattering particles or scattering particles layer; And family's reflection bar (6), the black grid (7) of Fresnel back of the body lamina (2) are all horizontal; When the projected light (9) of sending when projector (8) projects screen surface; The vertical cylinder in top layer (5) plays the effect of lens, to make it converge, when propagation, be scattered particle and carried out certain scattering, then by after level back of the body family's reflection bar (6) reflection inferior through scattering particles or scattering particles layer, finally again by the vertical cylinder in top layer (5) scattering, as: the reflection ray (10) of projected light; Due to the relation of crevice projection angle; Can most ofly be sponged by black grid (7) in (2) for ground environment light (11); The part of side ring environmental light (12) or the vertical black grid of extinction (4) of most of quilt sponge; In addition: from the surround lighting except near orientation projector, still can be projected near projector by most of light of the vertical cylinder in top layer (5) refraction outgoing again after the level back of the body family reflection bar reflection on it by (2) through superrefraction diffusion etc., instead of auditorium; This technology cannot suppress the ambient light from projector orientation, thereby adopts as far as possible short Jiao and from axle wide-angle mode of delivery, the angle of the projectional angle of projector and the normal of screen is the bigger the better; Choosing of vertical black grid yardstick, will depend on the aggregate capabilities of the vertical cylinder in top layer (5) as lens, and the larger suction surround lighting of size characteristic is better, but excessively also increasing slowly be added to absorption projected light; The scattering degree of granule proliferation or layer is chosen should be moderate, the vertical cylinder in top layer (5) lens will increase the diffusivity of horizontal direction, and vertical diffusivity also can complete by certain curve form of the level back of the body family's reflection bar (6) on (2); It may be noted that: black grid (7) and black grid (4) can not use, and can bring the convenience of a little processing; Its feature is just: in the front top layer (1) of screen, be processed with the black grid of vertical extinction (4); Top layer in front top layer (1) can be that vertical cylinder (5) can be also plane; Be provided with Fresnel back of the body lamina (2) in front top layer (1), this layer (2) can be layer load independently, can be also directly on another surface in front top layer (1), to be processed with level back of the body family reflection bar, black grid layer structure; Level back of the body family's reflection bar (6) can be that plane can be also curved surface; At Fresnel back of the body lamina (2) and in front top layer (1), can use black grid (7) and black grid (4), also can not use black grid, with the institute's material that uses filling of reflector layer and front top layer (1); Between the vertical cylinder in top layer (5) and level back of the body family's reflection bar (6), be filled with scattering particles.
3. the scattering particles as described in claim 1,2; Refer to and be dispersed in the medium inside of (1) and (2) or be clipped in the independent scattering particles layer between (1) and (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310160529.5A CN104111580A (en) | 2013-04-16 | 2013-04-16 | Horizontal back family black gate or fresnel back family stripe reflection projection screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310160529.5A CN104111580A (en) | 2013-04-16 | 2013-04-16 | Horizontal back family black gate or fresnel back family stripe reflection projection screen |
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| CN104111580A true CN104111580A (en) | 2014-10-22 |
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| CN107367898A (en) * | 2016-05-12 | 2017-11-21 | 深圳市光峰光电技术有限公司 | The preparation method and dependent projections screen of a kind of projection screen |
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| TWI728110B (en) * | 2016-05-12 | 2021-05-21 | 大陸商深圳光峰科技股份有限公司 | A projection screen |
| CN107367898B (en) * | 2016-05-12 | 2019-05-03 | 深圳光峰科技股份有限公司 | A kind of production method and dependent projections screen of projection screen |
| CN107632490A (en) * | 2016-07-19 | 2018-01-26 | 深圳市光峰光电技术有限公司 | A kind of reflective micro-structural, projection screen and optical projection system |
| CN107632490B (en) * | 2016-07-19 | 2020-10-16 | 深圳光峰科技股份有限公司 | Light reflection microstructure, projection screen and projection system |
| CN109388013A (en) * | 2017-08-04 | 2019-02-26 | 深圳光峰科技股份有限公司 | Projection screen and optical projection system |
| WO2019024367A1 (en) * | 2017-08-04 | 2019-02-07 | 深圳市光峰光电技术有限公司 | Projection screen and projection system |
| CN109814327A (en) * | 2017-11-15 | 2019-05-28 | 深圳光峰科技股份有限公司 | Screen and preparation method thereof |
| CN109814327B (en) * | 2017-11-15 | 2021-05-25 | 深圳光峰科技股份有限公司 | Screen and manufacturing method thereof |
| WO2019192202A1 (en) * | 2018-04-02 | 2019-10-10 | 深圳光峰科技股份有限公司 | Screen and projection system |
| CN110850674A (en) * | 2019-12-21 | 2020-02-28 | 成都菲斯特科技有限公司 | Projection screen and projection system |
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Application publication date: 20141022 |