发明名称 |
Light sensor and lighting device with adaptable color |
摘要 |
Light sensors (1) are used in lighting applications, especially in combination with LEDs, to control and/or adapt the color point of light sources. Costs and/or performance of the light sensor (1) are essential in order to guarantee cost-effective light sources with reproducible color points. This aim is achieved by a light sensor (1) comprising a light diffuser (10), an optical non-transparent housing (11) having at least one window (12), at least one interference filter (13) and at least two photo sensors (14). The light diffuser (10) is arranged in such a way that light from outside the optical non-transparent housing (11) has to pass the light diffuser (10) so as to enter the interior of the optical non-transparent housing (11) via the window (12). The interference filter (13) and the at least two photo sensors (14) are arranged in the interior of the optical non-transparent housing (11), which interference filter (13) is arranged between the window (12) and the at least two photo sensors (14). |
申请公布号 |
US8649004(B2) |
申请公布日期 |
2014.02.11 |
申请号 |
US20080672310 |
申请日期 |
2008.08.11 |
申请人 |
SCHULZ VOLKMAR;MARTINY CHRISTOPH;MEIJER EDUARD JOHANNES;VERGEER PETER;KONINKLIJKE PHILIPS N.V. |
发明人 |
SCHULZ VOLKMAR;MARTINY CHRISTOPH;MEIJER EDUARD JOHANNES;VERGEER PETER |
分类号 |
G01B11/26;F21K99/00;G01N21/00 |
主分类号 |
G01B11/26 |
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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