Fresnel anti-light projections screen for ultra-short-focus projection system

A projection system and projection screen technology, applied in the field of short-focus projection, can solve the problems of reduced viewing experience, restrictions, and high brightness of the viewing area.

Inactive Publication Date: 2019-03-08
烟台市谛源光科有限公司
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  • Abstract
  • Description
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Problems solved by technology

Therefore, the large-angle area cannot be seen clearly, and the brightness of the viewing area is too high to cause glare
[0004] Therefore, the problem of speckle and narrow viewing angle not only reduces the viewing experience, but also limits its applic

Method used

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  • Fresnel anti-light projections screen for ultra-short-focus projection system
  • Fresnel anti-light projections screen for ultra-short-focus projection system
  • Fresnel anti-light projections screen for ultra-short-focus projection system

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Embodiment Construction

[0022] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0023] see figure 2 , the present invention provides a Fresnel anti-light projection screen for an ultra-short-focus projection system, comprising an anti-scratch layer 1, an upper colored layer 21, an upper prism layer 3, a lower colored layer 22, and a lower prism arranged in sequence Layer 4, Fresnel lens layer 5, reflective layer 6, and light-absorbing layer 7; the anti-scratch layer 1 is located on the outermost layer facing the audience, and the rest are arranged inwards in sequence.

[0024] see image 3 and Figure 4 , the upper prism layer 3 and the lower prism layer 4 are provided wit...

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Abstract

The invention relates to the technical field of the short-focus projection, and provides a Fresnel anti-light projections screen for an ultra-short-focus projection system. The Fresnel anti-light projections screen comprises an anti-scratch layer, an upper coloring layer, an upper prism layer, a lower coloring layer, a lower prism layer, a Fresnel lens layer, a reflecting layer and a light-absorbing layer arranged in order; streaky structures towards the anti-scratch layer are arranged on the upper prism layer and the lower prism layer, and the trends of the streaky structures of the upper prism layer and the lower prism layer are in vertical arrangement. Thereby, by arranging the upper prism layer and the lower prism layer, the traditional scattering layer is substituted, the incident light can diverge to the surrounding more effectively, the divergence degree is higher, the watching visual angle is greater, the screen speckles, the narrow visual angle, the center region dazzling andlike problems are effectively solved.

Description

technical field [0001] The invention relates to the technical field of short-focus projection, in particular to a Fresnel anti-light projection screen used in an ultra-short-focus projection system. Background technique [0002] Currently, ultra-short-throw projection screens are used as home theater screens. Such as figure 1 As shown, the projection screen generally includes an anti-scratch layer 1 , a colored layer 2 , a diffusion layer 8 , a Fresnel lens layer 5 , a reflective layer 6 and a light-absorbing layer 7 . The anti-scratch layer 1 can increase the surface hardness of the screen, and prevent scratch damage of a certain force. The coloring layer 2 is generally gray, light black, etc., which can greatly improve the contrast of projection display. The diffusion layer 8 functions to scatter incident light. [0003] The existing diffusion layer is made of a resin material with a transmittance greater than 85% uniformly added with diffusion particles (nanoscale to ...

Claims

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Application Information

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IPC IPC(8): G03B21/602
CPCG03B21/602
Inventor 廖巧生黄少云
Owner 烟台市谛源光科有限公司
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