Invention Grant
- Patent Title: Color lighting device
- Patent Title (中): 彩色照明装置
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Application No.: US12090874Application Date: 2006-10-09
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Publication No.: US07709774B2Publication Date: 2010-05-04
- Inventor: Volkmar Schulz , Eduard Johannes Meijer
- Applicant: Volkmar Schulz , Eduard Johannes Meijer
- Applicant Address: NL Eindhoven
- Assignee: Koninklijke Philips Electronics N.V.
- Current Assignee: Koninklijke Philips Electronics N.V.
- Current Assignee Address: NL Eindhoven
- Agency: Volentine & Whitt, PLLC
- Priority: EP05109702 20051019
- International Application: PCT/IB2006/053689 WO 20061009
- International Announcement: WO2007/046026 WO 20070426
- Main IPC: G01J1/32
- IPC: G01J1/32 ; H01L31/14 ; H01L29/16 ; F21V9/00 ; G05F1/00
Abstract:
The invention relates to a color lighting device comprising at least one light-emitting source (1a, 1b, 1c) fixed on a common substrate (3), each light-emitting source (1a, 1b, 1c) comprising at least one light-emitting diode (LED) (1a, 1b, 1c), each light-emitting source (1a, 1b, 1c) comprising one photosensor (2a, 2b, 2c) that detects the light output only of the associated light source (1a, 1b, 1c), and each light-emitting source (1a, 1b, 1c) being connected to an analog control circuit (4a, 4b, 4c) that controls the drive of each light-emitting source (1a, 1b, 1c) separately on the basis of a light output detected by the associated photosensor (2a, 2b, 2c), while each control circuit (4a, 4b, 4c) comprises a comparator (5a, 5b, 5c) connected to the associated photosensor (2a, 2b, 2c).
Public/Granted literature
- US20080290250A1 Color Lighting Device Public/Granted day:2008-11-27
Information query
IPC分类:
