发明授权
- 专利标题: Stable rear projection screen and method for the production thereof
- 专利标题(中): 稳定的背投屏幕及其制作方法
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申请号: US10566370申请日: 2004-03-12
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公开(公告)号: US07602550B2公开(公告)日: 2009-10-13
- 发明人: Markus Parusel , Jann Schmidt , Herbert Groothues
- 申请人: Markus Parusel , Jann Schmidt , Herbert Groothues
- 申请人地址: DE Darmstadt
- 专利权人: Roehm GmbH & Co. KG
- 当前专利权人: Roehm GmbH & Co. KG
- 当前专利权人地址: DE Darmstadt
- 代理机构: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- 优先权: DE10336131 20030804
- 国际申请: PCT/EP2004/002627 WO 20040312
- 国际公布: WO2005/092654 WO 20051006
- 主分类号: G03B21/60
- IPC分类号: G03B21/60 ; G03B21/56
摘要:
The present invention relates to rear-projection screens which have at least one scattering layer encompassing scattering particles and has at least one backing layer, characterized in that the halved-intensity angle of the scattering layer is greater than or equal to 15° and the halved-intensity angle of the backing layer is smaller than or equal to 6.5°, where the gloss R60° of the backing layer is smaller than or equal to 70.
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