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发明名称
Portable reading light device
摘要
A portable reading light device utilizing an LEDs as the source of light mounted in a housing having a single lens through which light from the LEDs is projected, the power to the LEDs being controlled by Pulse Width Modulation.
申请公布号
US6623141(B2)
申请公布日期
2003.09.23
申请号
US20020320903
申请日期
2002.12.16
申请人
LEHRER ROBERT A.
发明人
LEHRER ROBERT A.
分类号
F21L14/00;F21L14/02;F21V5/04;F21V21/084;F21V21/30;F21V23/04;(IPC1-7):F21L4/00
主分类号
F21L14/00
代理机构
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