Patent ID: 7151601
Filing Date: 2006-12-19
Classification: A61N,F21S,F21W,G02B,H05B

Abstract:
1. A lighting system that provides a variable selected spectral output and a variable wavelength dependent intensity distribution, the lighting system comprising a light path that comprises: a) a spectrum former configured to provide a spectrum from a light beam traveling along the light path, and b) a pixelated spatial light modulator located downstream from and optically connected to the spectrum former, the pixelated spatial light modulator configured to pass desired light from the spectrum to select a segment of light, wherein the pixelated spatial light modulator is operably connected to at least one controller containing computer-implemented programming that controls an on/off pattern of pixels in the pixelated spatial light modulator to provide a desired segment of light comprising the desired spectral and intensity distribution, the desired segment of light consisting essentially of a desired selected spectral output and a desired wavelength dependent intensity distribution, c) and wherein the pixelated spatial light modulator is a first pixelated spatial light modulator, and wherein the desired segment of light is directed to a second spatial light modulator operably connected to at least one controller containing computer-implemented programming that controls an on/off pattern of pixels in the second spatial light modulator to select the desired segment.