CN201654437U - Rear projection screen - Google Patents
Rear projection screen Download PDFInfo
- Publication number
- CN201654437U CN201654437U CN 201020183667 CN201020183667U CN201654437U CN 201654437 U CN201654437 U CN 201654437U CN 201020183667 CN201020183667 CN 201020183667 CN 201020183667 U CN201020183667 U CN 201020183667U CN 201654437 U CN201654437 U CN 201654437U
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- Prior art keywords
- lens
- rear projection
- convex lens
- projection screen
- imaging layer
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- Expired - Fee Related
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Abstract
The utility model discloses a rear projection screen, including a base material and an imaging layer. The screen is characterized in that it also includes a lens layer composed of convex lenses which are arranged in a matrix equidistantly; the base material layer, the imaging layer and the lens layer are arranged in sequence, and convergence focuses of the convex lenses are set in the imaging layer. By means of displacing the previous ribbing Fresnel lens, rhombic lens or trapezoid lens, the rear projection screen may meet the requirement of image trenchancy degree and homogeneity.
Description
Technical field
The utility model relates to a kind of optical imaging device, particularly relates to a kind of optics rear projection screen.
Background technology
Along with the raising that the continuous development of projection display technique, innovation and people's appreciation level require, super large picture, super brightness, more high resolving power, higher contrast and better vision protection display technique just become the active demand that shows market.Traditional display screen is by rib-loop shape Fresnel Lenses, and rhombus or trapezoid lens are formed.Its principle is: incidental image by behind the rib-loop shape Fresnel Lenses, transfers parallel rays as light to, is scattering into picture then at rhombus or trapezoid lens light harvesting, and to horizontal direction.The display format of screen is changed, is merged demonstration conversion from single screen display and the demonstration of multi-disc screen splicing to many projectors of whole screen to 16:9 or 16:10 from 4:3 at present.Because the change of display mode, traditional rib-loop shape Fresnel Lenses can not have been satisfied multiple display format or demonstration is merged in many projectors of whole screen, and the diffuse reflection screen also exists solar effect and staircase effect, can not satisfy the uniformity requirement of whole screen.
The utility model content
The purpose of this utility model is can effectively suppress solar effect and staircase effect in order to provide a kind of, satisfies the requirement of whole screen show uniformity and high sharpness, and is applicable to the rear projection screen of multiple demonstration standard.
Technological means: the utility model is a kind of rear projection screen, comprises substrate layer, imaging layer and the lens jacket of being arranged and being formed by convex lens, and substrate layer, imaging layer and lens jacket set gradually, and each convex lens of lens jacket are assembled focal point settings in imaging layer.
Each convex lens of described lens jacket are arranged on the transparent panel, and transparent panel is connected with imaging layer, and the meeting focus point of each convex lens is in the plane.
Each convex lens and the transparent panel integral production of described lens jacket form.
Each convex lens of described lens jacket become matrix form equidistantly to arrange.
Beneficial effect: the utility model is simple in structure, with the focal point settings of convex lens in imaging layer, from any angle, after the projected light of any distance is incident to convex lens, convex lens with the image convergence of rays at imaging layer, imaging then.Fresnel Lenses and rhombus, trapezoid lens with focus on substituting in the past all have significant lifting to image sharpness and homogeneity.And the utility model can not be subjected to the influence of projector's focal length length, can satisfy the needs of various demonstration standards.
Description of drawings
Fig. 1 is a perspective view of the present utility model;
Fig. 2 is a structural representation of the present utility model.
Wherein: 1 is substrate layer, and 2 is imaging layer, and 3 is lens jacket, and 4 is convex lens.
Embodiment
As shown in Figure 1 and Figure 2, this rear-projection display screen is set gradually by substrate layer 1, imaging layer 2 and lens jacket 3 and constitutes, lens jacket 3 is made of by equidistant arrangement of matrix pattern the identical bull's-eye 4 of several focal lengths, each bull's-eye connects by transparent panel, and each convex lens and transparent panel integral production form.The meeting focus point of each convex lens all is arranged in the imaging layer, and all is in same plane.Projector is with the lens jacket of light directive rear-projection display screen during use, and light is focused on the imaging layer by convex lens, then imaging.
Characteristics of the present utility model are no matter to use long Jiao or short-focus lens, be incident to convex lens from the projected light of any angle, any distance after, convex lens all can be with image convergence of rays imaging on imaging layer. Utilize the congregational rate to light of convex lens, substitute in the past " can change the Fresnel Lenses of projection light " and " rhombus of light harvesting and diffused light or trapezoid lens ", image sharpness and uniformity are had significant lifting. The size of convex lens and dense degree can be arranged the flexibility height voluntarily according to the resolution ratio of projector and the specification of focal length. And convex lens are that matrix form is equidistantly arranged, and the size of screen can adopt any ratio, satisfies the needs of various demonstration standards.
Claims (4)
1. rear projection screen, comprise substrate layer and imaging layer, it is characterized in that: described rear projection screen also comprises the lens jacket of being arranged and being formed by convex lens, and substrate layer, imaging layer and lens jacket set gradually, and each convex lens of lens jacket are assembled focal point settings in imaging layer.
2. rear projection screen according to claim 1 is characterized in that: each convex lens of described lens jacket are arranged on the transparent panel, and transparent panel is connected with imaging layer, and the meeting focus point of each convex lens is in the plane.
3. rear projection screen according to claim 2 is characterized in that: each convex lens and the transparent panel integral production of described lens jacket form.
4. according to claim 1 or 2 or 3 described rear projection screens, it is characterized in that: each convex lens of described lens jacket become matrix form equidistantly to arrange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020183667 CN201654437U (en) | 2010-05-10 | 2010-05-10 | Rear projection screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020183667 CN201654437U (en) | 2010-05-10 | 2010-05-10 | Rear projection screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201654437U true CN201654437U (en) | 2010-11-24 |
Family
ID=43119681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020183667 Expired - Fee Related CN201654437U (en) | 2010-05-10 | 2010-05-10 | Rear projection screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201654437U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103076684A (en) * | 2013-02-25 | 2013-05-01 | 樊燚 | Novel grating capable of presenting naked eye stereoscopic effect for rear projecting imaging system |
| CN105573042A (en) * | 2016-03-16 | 2016-05-11 | 成都电锯互动科技有限公司 | Virtual reality system |
-
2010
- 2010-05-10 CN CN 201020183667 patent/CN201654437U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103076684A (en) * | 2013-02-25 | 2013-05-01 | 樊燚 | Novel grating capable of presenting naked eye stereoscopic effect for rear projecting imaging system |
| CN105573042A (en) * | 2016-03-16 | 2016-05-11 | 成都电锯互动科技有限公司 | Virtual reality system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170126 Address after: 510520 Guangdong province Guangzhou Shantou two road 602 No. two first floor Room 102 Patentee after: GUANGZHOU AIEN ELECTRONIC CO., LTD. Address before: 510520 Guangdong city of Guangzhou province Guangshan road two high tech park new Tong Road No. 46 Yangcheng building room 702 Patentee before: Guangzhou Aien Optronic Technology Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101124 Termination date: 20180510 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |