Invention Grant
- Patent Title: Color point variable light emitting apparatus
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Application No.: US15555539Application Date: 2016-03-01
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Publication No.: US10168008B2Publication Date: 2019-01-01
- Inventor: Olexandr Valentynovych Vdovin , Rifat Ata Mustafa Hikmet , Petrus Theodorus Jutte
- Applicant: KONINKLIJKE PHILIPS N.V.
- Applicant Address: NL Eindhoven
- Assignee: Koninklijke Philips N.V.
- Current Assignee: Koninklijke Philips N.V.
- Current Assignee Address: NL Eindhoven
- Agency: Patent Law Group LLP
- Agent Brian D. Ogonowsky
- Priority: EP15158191 20150309
- International Application: PCT/EP2016/054301 WO 20160301
- International Announcement: WO2016/142212 WO 20160915
- Main IPC: F21V11/08
- IPC: F21V11/08 ; F21V23/04 ; F21V14/00 ; F21V9/30 ; F21V7/22 ; F21K9/64 ; H01L33/50 ; F21V11/00 ; F21V14/08 ; F21Y115/30 ; F21Y115/10

Abstract:
A color point variable light emitting apparatus is provided. The color point variable apparatus comprises a member comprising a wavelength converting element and a non-wavelength converting element, the wavelength converting element is arranged to convert light of a first wavelength into light of a second wavelength and emit the light of the second wavelength, and the non-wavelength converting element is arranged to redirect light of the first wavelength, a light source having a controllable optical element, the light source is arranged to, with light of a first wavelength, illuminate both a portion of the wavelength converting element and a portion of the non-wavelength converting element, and a controller arranged to control the controllable optical element such that a ratio of the portion of the wavelength converting element and the portion of the non-wavelength converting element illuminated by the light source is changed. A method for varying color point of light is further provided.
Public/Granted literature
- US20180066809A1 COLOR POINT VARIABLE LIGHT EMITTING APPARATUS Public/Granted day:2018-03-08
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