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White LED lighting device and a lighting appliance
专利权人:
MAQUET SAS
发明人:
Robin Jousse,Cécilia Valteau,Lionel Comte
申请号:
US13793288
公开号:
US09920906B2
申请日:
2013.03.11
申请国别(地区):
US
年份:
2018
代理人:
摘要:
An LED lighting device (6) having an LED (8) emitting white light and optical filter means (12) suitable for filtering the white light emitted by the LED (8). The optical filter means comprise at least two optical filters (12) that have different transmission coefficients and that are positionable to filter the light emitted by the LED (8) individually. The lighting device (6) includes a power supply unit (10) suitable for delivering different power supply currents to the LED (8) depending on whether one or the other of the optical filters (12) is positioned to filter the light from the LED (8), so as to modify the color temperature of the light emitted by the LED (8).
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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