发明名称 |
Front suspension device for bicycles |
摘要 |
The present invention relates to an improvement for a leads the light chart shape of a leads the light board so as to resolve the problems of illumination and degree of uniformity of the conventional leads the light boards. The leads the light board of the present invention has line-shaped passages which are located in parallel with the direction of light from the light emitting diodes. The depth of the passages becomes deeper gradually from one end to the other, wherein the source of light is located close to the shallow end, thereby the light from the light emitting diodes is transmitted to the remote areas that are located far from the source of light. The present invention increases the total illumination and the degree of uniformity, and the efficiency of the light emitting diode is also increased.
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申请公布号 |
US2004022049(A1) |
申请公布日期 |
2004.02.05 |
申请号 |
US20020211831 |
申请日期 |
2002.08.05 |
申请人 |
CHANG SHIH-TSUNG;CHENG CHI-FENG |
发明人 |
CHANG SHIH-TSUNG;CHENG CHI-FENG |
分类号 |
F21V8/00;G02B6/00;(IPC1-7):F21V7/04 |
主分类号 |
F21V8/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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