发明名称 Spherical reflective screen with focus and method for manufacturing the same
摘要 Disclosed are a spherical reflective screen for displaying an image and a method for manufacturing the screen. The screen has a spherical surface with a radius of curvature of a circle drawn centering around a point, and a focal length of the screen is the same as a projection length of a projector so that the projector is located at a focal point of the screen, thus allowing the image formed by means of light projected from the projector to be straightly reflected on the screen but ambient light to be diffused to the outside. A frictional surface and diffusing lines are simultaneously formed on an aluminum foil by rubbing the double-layered aluminum foils together in one direction, therefore, viewing angle and resolution of the screen are improved two times or more.
申请公布号 US2005243427(A1) 申请公布日期 2005.11.03
申请号 US20050526963 申请日期 2005.03.07
申请人 CHOI HAE-YONG 发明人 CHOI HAE-YONG
分类号 G03B21/56;(IPC1-7):G02B5/02;G02B13/20 主分类号 G03B21/56
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