Patent ID: 6967765
Filing Date: 2005-11-22
Classification: G02F

Abstract:
1. An active optical system for converting an incoming optical image at a first wavelength to an output image at a second wavelength different than the first wavelength, the active optical system comprising: a first optical element assembly for producing the incoming optical image at the first wavelength; a template optical element for producing a template optical intensity profile; a combining optical element disposed to receive and combine the incoming optical image and the template optical intensity profile into a co-linear propagation output image; and a spatial light modulator for receiving the co-linear propagation output image and in response to absorbing the incoming optical image of the co-linear propagation output image, changing a local index of refraction of the spatial light modulator to change a local reflection for the template optical intensity profile, wherein at least a portion of the template optical intensity profile is reflected by the spatial light modulator to produce the output image at the second wavelength.