- 专利标题: Total internal reflection screen and projection system
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申请号: US16636484申请日: 2017-12-06
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公开(公告)号: US11221553B2公开(公告)日: 2022-01-11
- 发明人: Lin Wang , Fei Hu , Yi Li
- 申请人: APPOTRONICS CORPORATION LIMITED
- 申请人地址: CN Guangdong
- 专利权人: APPOTRONICS CORPORATION LIMITED
- 当前专利权人: APPOTRONICS CORPORATION LIMITED
- 当前专利权人地址: CN Guangdong
- 代理机构: Burris Law, PLLC
- 国际申请: PCT/CN2017/114727 WO 20171206
- 国际公布: WO2019/024368 WO 20190207
- 主分类号: G03B21/602
- IPC分类号: G03B21/602 ; G02B5/02 ; G03B21/56 ; G03B21/625 ; G03B21/604 ; G03B21/60
摘要:
A total internal reflection screen includes a light diffusion layer, a total internal reflection layer and a light absorption layer arranged sequentially from an incidence side of a projected light. The light absorption layer absorbs an incident light and the light diffusion layer increases a divergence angle of an emergent light. The total internal reflection layer includes a plurality of microstructure units that is rotationally symmetrical and extends continuously in a plane of the total internal reflection screen. Each of the microstructure units includes a first material layer disposed at the side of the light diffusion layer and a second material layer disposed at the side of the light absorption layer. The interface between the first material layer and the second material layer is includes two intersecting planes, which are disposed in such a way that the projected light is totally internally reflected continuously at the two intersecting planes.
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