发明申请
- 专利标题: Led-based flashlight
- 专利标题(中): LED手电筒
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申请号: US10794073申请日: 2004-03-05
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公开(公告)号: US20050007767A1公开(公告)日: 2005-01-13
- 发明人: Robert Fischer , Greg Moeller , Simon Prince
- 申请人: Robert Fischer , Greg Moeller , Simon Prince
- 主分类号: F21L4/00
- IPC分类号: F21L4/00 ; F21L4/02 ; F21V5/00 ; F21V5/04 ; F21V7/00 ; F21V9/10 ; F21V11/08 ; F21V14/06 ; G02B27/09 ; G03B21/14 ; G03B21/22 ; G03B29/00 ; F21L2/00
摘要:
A flashlight that utilizes an array of one or more light-emitting diodes (LEDs) as a light source, and a light pipe as a light homogenizer to generate a light beam capable of forming a uniformized light distribution at a given distance from the flashlight is disclosed. The LEDs may be all the same color, or some or all may be different colors. A switch, coupled to switching electronics coupled to the LED array, is used to change the state of the LED array to create a variety of different types of light beams, each of which provides relatively uniform and bright illumination at a given distance from the flashlight, wherein the given distance is selectable by adjusting an adjustable imaging lens.
公开/授权文献
- US07077525B2 Led-based flashlight 公开/授权日:2006-07-18
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