Patent ID: 6317171
Filing Date: 2001-11-13
Classification: H04N

Abstract:
A projection television comprising:a signal interface for receiving images according to a plurality of aspect ratios including a first and a second aspect ratio;a pixel data processing unit for scaling, in at least one dimension, received images in the first aspect ratio, to fit a second aspect ratio;a spatial light modulator for generating images to be displayed, the spatial light modulator having the second aspect ratio;a projection lens operable to project images along an optical path from said spatial light modulator to a screen;an anamorphic lens moveable in and out of said optical path, said anamorphic lens operable to optically adjust said image in said at least one dimension to match the first aspect ratio; anda mechanism attached to said anamorphic lens, operable to move said anamorphic lens in and out of said optical path.