发明授权
- 专利标题: Front projection type screen
- 专利标题(中): 前投影式屏幕
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申请号: US10073053申请日: 2002-02-12
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公开(公告)号: US06844969B2公开(公告)日: 2005-01-18
- 发明人: Kun-ho Cho , Seung-tae Jung , Dae-sik Kim , Cheol-sung Yeon
- 申请人: Kun-ho Cho , Seung-tae Jung , Dae-sik Kim , Cheol-sung Yeon
- 申请人地址: KR Suwon-si
- 专利权人: Samsung Electronics Co., Ltd.
- 当前专利权人: Samsung Electronics Co., Ltd.
- 当前专利权人地址: KR Suwon-si
- 代理机构: Staas & Halsey LLP
- 优先权: KR2001-11732 20010307
- 主分类号: G03B21/56
- IPC分类号: G03B21/56 ; G03B21/60
摘要:
A front projection type screen includes a transparent base; a diffusion member formed on one surface of the transparent base; and a retroreflection prism array formed on another surface of the transparent base. Thus, a wide angle of visibility can be secured in a horizontal direction while an angle of visibility in a vertical direction is limited to a narrow scope. Also, a wide viewing angle can be achieved and high efficiency and brightness of light may be obtained.
公开/授权文献
- US20020126378A1 Front projection type screen 公开/授权日:2002-09-12
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