发明授权
- 专利标题： Orthogonal parabolic reflector systems
- 专利标题（中）： 正交抛物面反射系统
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申请号： US740586申请日： 1991-08-05
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公开(公告)号： US5235470A公开(公告)日： 1993-08-10
- 发明人: Dah Y. Cheng
- 申请人： Dah Y. Cheng
- 专利权人： Cheng Dah Y
- 当前专利权人： Cheng Dah Y
- 主分类号： F21V7/09
- IPC分类号： F21V7/09 ; G02B5/10
摘要：
A reflecting surface which is open at least at one axial end and in an axial section conforms to an axial section through a geometric surface generated by rotating a parabolic curve about an axis normal to the parabola axes. An elongated source/sink extends along the axis of the reflecting surface and is at least partly enveloped by that surface.
公开/授权文献
- US5911307A Conveyor belt and method of manufacturing 公开/授权日：1999-06-15
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