Patent ID: 8177367
Filing Date: 2012-05-15
Classification: G02B,H04N

Abstract:
1. A 2D/3D switchable front projection or rear projection display system that produces two dimensional and three dimensional images for display, comprising: (a) a selector for selecting from a two-dimensional (2D) or a three-dimensional (3D) image processing path; (b) a first processor for processing image data through the two-dimensional image processing path; (c) a second processor, independent of the first processor, for processing image data through the three-dimensional image processing path; (d) a first modulation path for providing a first modulated beam of light comprising a first set of at least three narrow band emitters having corresponding first peak emission wavelengths, condensing optics, and a first spatial light modulator; (e) a second modulation path for providing a second modulated beam of light comprising a second set of at least three narrow band emitters having corresponding second peak emission wavelengths which are different than the first peak emission wavelengths, condensing optics, and a second spatial light modulator; (f) means for combining the first modulated beam and the second modulated beam and projecting the combined beam onto a surface by a projection lens; and (g) a controller that during a 2D operation activates both first and second sets of narrow band emitters to cause the combining means to project a single image, and while during a 3D operation activates the first set of narrow band emitters to cause the combining means to project a first image having one half of stereo image information and activates the second set of narrow band emitters to cause the combining means to project a second image having a second half of stereo image information.