Lighting devices, methods of lighting, light filters and methods of filtering light
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United States of America Patent
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Aug 13, 2013
Grant Date -
Oct 23, 2008
app pub date -
Feb 22, 2008
filing date -
Feb 22, 2007
priority date (Note) -
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Abstract
A lighting device comprising a white light source, a filter which filters blue light from the white light, and a second light source which emits red light and/or reddish-orange light. In some embodiments, the white light source comprises a solid state light emitter. A method of lighting, comprising illuminating a white light source, illuminating a red and/or reddish-orange light source, the light sources being positioned and oriented such that the light mixes, and filtering blue light from the mixed light. A method of lighting, comprising illuminating a white light source, filtering blue light from the white light, and illuminating a red and/or reddish-orange light source. A light filter, comprising a first filter component which has a wall region and a window region, and a second filter component comprising two or more reflection regions. Also, methods of filtering.
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