Invention Grant
- Patent Title: Lighting device
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Application No.: US14423504Application Date: 2013-08-13
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Publication No.: US09784418B2Publication Date: 2017-10-10
- Inventor: Ties Van Bommel , Rifat Ata Mustafa Hikmet
- Applicant: KONINKLIJKE PHILIPS N.V.
- Applicant Address: NL Eindhoven
- Assignee: PHILIPS LIGHTING HOLDING B.V.
- Current Assignee: PHILIPS LIGHTING HOLDING B.V.
- Current Assignee Address: NL Eindhoven
- Agent Akarsh P. Belagodu
- International Application: PCT/IB2013/056620 WO 20130813
- International Announcement: WO2014/030100 WO 20140227
- Main IPC: F21V9/02
- IPC: F21V9/02 ; F21K99/00 ; F21V9/16 ; F21V13/02 ; F21V13/12 ; F21K9/64 ; F21V13/10 ; F21V5/02 ; F21V9/10 ; F21V8/00 ; F21W131/40 ; F21Y105/10 ; F21Y115/10

Abstract:
The present invention relates to a lighting device (300) having a housing (302) and multiple light sources (308) arranged in the housing. The light sources emit light of a first wavelength range. The lighting device includes a wavelength converting member (310) arranged at a distance from the light sources, and it comprises a first wavelength converting material configured to convert a part of said light of a first wavelength range into light of a second wavelength range. The lighting device further includes a color distribution member (312) providing a color distribution of the light emitted from the lighting device where the ratio of intensity of light with the first wavelength range to the intensity of light with the second wavelength range is larger at low angles to a light output surface of the lighting device than at high angles to the light output surface.
Public/Granted literature
- US20150184812A1 LIGHTING DEVICE Public/Granted day:2015-07-02
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