发明申请
- 专利标题: Annular light pipe
- 专利标题(中): 环形灯管
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申请号: US11648152申请日: 2006-12-28
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公开(公告)号: US20080186730A1公开(公告)日: 2008-08-07
- 发明人: Gregg Smith , Jeffrey S. Anderson
- 申请人: Gregg Smith , Jeffrey S. Anderson
- 主分类号: F21V7/04
- IPC分类号: F21V7/04
摘要:
An economical, energy efficient light pipe that illuminates to encircle a button or the like is disclosed. In one embodiment, the light pipe is substantially conical shaped with a substantially convex tip positioned substantially adjacent to a light source. Preferably, the light pipe has a substantially conical-shaped portion that opens into a substantially cylindrical-shaped central portion and then opens further into a substantially conical shaped outer portion defining an outer illumination ring, thereby allowing a single, energy efficient, light emitting diode positioned adjacent to the convex tip to light the entire outer illumination ring.
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