发明名称 |
Collimating fresnel lens with diffuser appearance |
摘要 |
A Fresnel lens having a curved surface and a large number of Fresnel lens steps with rectangular cross sections for enhancing the aesthetics while providing a diffuser appearance. The cylindrical Fresnel lens can be uniformly divided into rectangular sections across the lens axis. The rectangular sections are alternative and are offset from the curved surface by a distance, which produces a very parallel output beam. The front face of the cylindrical Fresnel lens provides a square like pattern, which results in an aesthetic appearance with the effective usage of light and reduced production costs.
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申请公布号 |
US7589917(B2) |
申请公布日期 |
2009.09.15 |
申请号 |
US20070977486 |
申请日期 |
2007.10.25 |
申请人 |
HONEYWELL INTERNATIONAL INC. |
发明人 |
SURE ANITA;KRISHNASAMY VENKATARAMAN |
分类号 |
G02B3/08;G02B27/10 |
主分类号 |
G02B3/08 |
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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