发明名称 |
CONTROLLABLE LIGHT ANGLE SELECTOR |
摘要 |
A controllable light angle selecting device (100) is provided. It comprises a fixed light selecting means (110) adapted to transmit light incident thereon within a limited acceptance angle, optically connected to at least one light redirecting means (120) capable of obtaining a variable angular difference between light entering said light redirecting means (120) and light exiting said light redirecting means. A photometer, comprising a controllable light angle selector arranged in the path of light between a light source and a light measuring sensor is also provided.
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申请公布号 |
US2011013179(A1) |
申请公布日期 |
2011.01.20 |
申请号 |
US20090934699 |
申请日期 |
2009.03.31 |
申请人 |
KONINKLIJKE PHILIPS ELECTRONICS N.V. |
发明人 |
MEIJER EDUARD JOHANNES;VAN BOMMEL TIES;HIKMET RIFAT ATA MUSTAFA |
分类号 |
G01J1/34;G02B26/08;G02F1/29 |
主分类号 |
G01J1/34 |
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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