发明名称 CORRECTION METHOD FOR DISTORTION OF IMAGE IN INCLINED PROJECTION
摘要 An object for projection and an image forming lens are disposed so as to be always in parallel with an image forming plane. Accordingly, a figure similar to the planar shape to be projected can be always displayed even when the image forming plane is not perpendicular to the optical axis.
申请公布号 WO9100538(A1) 申请公布日期 1991.01.10
申请号 WO1990JP00448 申请日期 1990.03.31
申请人 JAPAN COMPUTER SCIENCE CO., LTD. 发明人 NAGASAWA, MASANAO
分类号 G02B27/18;G02B27/00;G03B21/00;G03B21/132 主分类号 G02B27/18
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