发明名称 IMAGE PROJECTION SYSTEM AND IMAGE PROJECTION DEVICE
摘要 PROBLEM TO BE SOLVED: To solve the problem in which an image projected onto a projection plane may be difficult to see depending on the state of light at the periphery of the projection plane.SOLUTION: An image projection system comprises a projection plane, image projection means that projects an image onto the projection plane, light receiving means that receives light from the periphery of the projection plane, and projection direction switching means that switches the direction of image projection by the image projection means according to the intensity of the light received by the light receiving means.
申请公布号 JP2014178375(A) 申请公布日期 2014.09.25
申请号 JP20130050903 申请日期 2013.03.13
申请人 RICOH CO LTD 发明人 NANBU HIROSHI
分类号 G03B21/14;G03B21/00;H04N5/74 主分类号 G03B21/14
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