Invention Grant
- Patent Title: Lighting device with defined spectral power distribution
- Patent Title (中): 具有规定光谱功率分布的照明设备
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Application No.: US12566253Application Date: 2009-09-24
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Publication No.: US08258722B2Publication Date: 2012-09-04
- Inventor: Charles M. Swoboda , Antony Paul Van De Ven , Gerald H. Negley
- Applicant: Charles M. Swoboda , Antony Paul Van De Ven , Gerald H. Negley
- Applicant Address: US NC Durham
- Assignee: Cree, Inc.
- Current Assignee: Cree, Inc.
- Current Assignee Address: US NC Durham
- Agency: Jenkins, Wilson, Taylor & Hunt, P.A.
- Agent Vincent K. Gustafson
- Main IPC: H05B37/02
- IPC: H05B37/02

Abstract:
Solid state lighting devices and illumination methods involve use of multiple solid state emitters of different colored outputs (optionally including at least one white or near-white emitter). Operation of the solid state emitters is controlled with at least one circuit element to emphasize and/or deemphasize perception of at least one color of a target surface based upon a reflectance spectral distribution of the target surface. At least one emitter may have an associated passive or active filter; the filterable emitter and/or active filter may be operated to deemphasize perception of at least one color of a target surface. Activation and/or alteration of emphasis or deemphasis of perception of color of a target surface may be selected by a user or automatically controlled.
Public/Granted literature
- US20110068698A1 LIGHTING DEVICE WITH DEFINED SPECTRAL POWER DISTRIBUTION Public/Granted day:2011-03-24
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