Provided are a speckle removing light source capable of removing speckle by using laser light whose wavelength is temporally changed and a lighting apparatus for producing an image from which the speckle is removed. Included are a light source for outputting laser light, and a light frequency modulator...http://www.google.es/patents/US7724413?utm_source=gb-gplus-sharePatente US7724413 - Speckle removing light source and lighting apparatus
Speckle removing light source and lighting apparatus