Invention Grant
- Patent Title: Lighting device having status indication by modulated light
- Patent Title (中): 照明装置具有通过调制光的状态指示
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Application No.: US13263438Application Date: 2010-03-30
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Publication No.: US09131550B2Publication Date: 2015-09-08
- Inventor: Tim Corneel Wilhelmus Schenk , Peter Deixler , Lorenzo Feri
- Applicant: Tim Corneel Wilhelmus Schenk , Peter Deixler , Lorenzo Feri
- Applicant Address: NL Eindhoven
- Assignee: Koninklijke Philips N.V.
- Current Assignee: Koninklijke Philips N.V.
- Current Assignee Address: NL Eindhoven
- Agent Meenakshy Chakravorty
- Priority: EP09157587 20090408
- International Application: PCT/IB2010/051378 WO 20100330
- International Announcement: WO2010/116289 WO 20101014
- Main IPC: H05B37/00
- IPC: H05B37/00 ; H05B37/02 ; H05B37/03

Abstract:
It is presented a lighting device (2) arranged to embed light quality data in light emanating from the lighting device. The light quality data pertains to a status of the lighting device (2), e.g. with respect to its end of operational life. The light may be detected by a monitoring device (3) external to the lighting device (2). The monitoring device (3) can then help to determine the status of the lighting device (2), whereby maintenance operations of the lighting device (2) may be carried out.Maintenance personnel may thus replace lighting devices and/or light sources in need of maintenance as indicated by the status of each lighting device, before any lighting device in the system has reached an end of operational life.
Public/Granted literature
- US20120025740A1 LIGHTING DEVICE Public/Granted day:2012-02-02
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