Patent ID: 8648904
Filing Date: 2014-02-11
Classification: G03B,H04N

Abstract:
1. A projector which projects an image corresponding to an original image on a projection object by scanning the projection object with a light beam, comprising: a light source configured to emit a light beam; a projection optical system including: a light deflector drive controller configured to control the light deflector to form the focused light spots on the pixel portions of the projection object on the basis of positional data of the pixels; a light amount controller configured to control light amount of the light beam emitted by the light source on the basis of luminance data for the pixels; and an image processor configured to correct the luminance data for each pixel on the basis of previously obtained data concerning deterioration in quality of the projected image to correct data concerning deterioration in quality of the projected image for each pixel, which is caused by the projection optical system including the divergence angle converter and the light deflector, and to output the corrected luminance data to the light amount controller while outputting the positional data to the light deflector drive controller, wherein the image processor includes: a pixel data correction part configured to correct the luminance data for each pixel on the basis of the previously obtained deterioration data of the projected image; a judgment part configured to judge whether the corrected luminance data for each pixel falls out of an adjustable range of the light amount controller; and a substitution process part configured to substitute the corrected luminance data judged to fall out of the adjustable range with the luminance data for the pixels.