发明名称 Projection type display apparatus
摘要 A projection type display apparatus for displaying an enlarged composite image being composed of images each of which is produced upon a plurality of light valves upon a screen in every independent primary color. A correcting lens which corrects a projection magnification factor of the image formed by the light valve is disposed in the vicinity of at least one light valve on the projecting lens system side. The correcting lens adjusts the projection magnification factor of the image in each primary color to a predetermined factor. With this result, the disparity of pixels among the primary colors due to the chromatic aberration of magnification is corrected, and it becomes possible to obtain a high quality projection image.
申请公布号 US5264879(A) 申请公布日期 1993.11.23
申请号 US19910641790 申请日期 1991.01.16
申请人 MITSUBISHI DENKI KABUSHIKI KAISHA 发明人 SHIKAMA, SHINSUKE
分类号 G03B33/12;G02B17/00;G02F1/13;G03B21/00;G09F9/00;H04N9/31;(IPC1-7):G03B21/14;G03B3/00 主分类号 G03B33/12
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