Patent ID: 6333757
Filing Date: 2001-12-25
Classification: G02B,H04N

Abstract:
An electro-optical device for selectively transmitting the spectral components of an image having at least first and second groups of spectral components, said electro-optical device comprising:an optically transparent input surface through which the first and second groups of spectral components can enter said electro-optical device;an optically transparent output surface through which the first and second groups of spectral components can exit said electrooptical device;first means, disposed between said optically transparent input and output surfaces, for imparting a first polarization state P1 to said first group of spectral components;second means, disposed between said optically transparent input and output surfaces, for imparting a second polarization state P2 to said second group of spectral components; andthird means, disposed between said optically transparent input and output surfaces, and being operative to selectively transmit one or both of said first and second groups of spectral components through said optical output surface in response to a control signal provided to said electro-optical device.