发明授权
- 专利标题： Beam-forming lens with internal cavity that prevents front losses
- 专利标题（中）： 具有内腔的成像镜片可防止前端损耗
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申请号： US872002申请日： 1997-06-09
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公开(公告)号： US5757557A公开(公告)日： 1998-05-26
- 发明人: Vladimir Medvedev , William A. Parkyn, Jr.
- 申请人： Vladimir Medvedev , William A. Parkyn, Jr.
- 申请人地址： CA Hawthorne
- 专利权人： TIR Technologies, Inc.
- 当前专利权人： TIR Technologies, Inc.
- 当前专利权人地址： CA Hawthorne
- 主分类号： G02B27/09
- IPC分类号： G02B27/09 ; F21L4/02 ; F21V5/04 ; F21V7/00 ; F21V8/00 ; F21Y101/02 ; G02B3/00 ; G02B17/00 ; G02B27/00 ; G02B3/02
摘要：
A device for directing light longitudinally forwardly, that comprises a lens body having a front face facing forwardly, rearward body extent, and a curved sidewall extending between the rearward body extent and the front face; a rear cavity in the body, the cavity having a sidewall and a front wall defining a corner; and a light source in the cavity, and characterized in that light rays transmitted by the light source toward the curved sidewall, and toward the corner are collimated forwardly.
公开/授权文献
- US5193815A Instant bingo game and game card therefor 公开/授权日：1993-03-16
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