发明名称 REFLECTION SCREEN AND VIDEO DISPLAY SYSTEM
摘要 <P>PROBLEM TO BE SOLVED: To provide a reflection screen for sharply reducing an appearance failure such as a leak of light due to external rays of light, and for displaying an inexpensive and satisfactory video and a video display system having the reflection screen. <P>SOLUTION: A reflection screen 10 includes: a lens layer 12 having a Fresnel lens shape at the back side in which a plurality of unit lens 121 are arrayed; and a reflection layer 11 formed at the back side of the lens layer 12 for reflecting the rays of light. The unit lens 121 is convex-shaped at the back side with an almost quadrangular cross-sectional shape in parallel with a direction of array of the unit lens 121 and in parallel with a direction orthogonal to a screen surface, and the unit lens 121 includes: a top face 121b as an apex and a lens surface 121a and a non-lens surface 121c faced to each other in a direction of array with the top face 121b interposed. The reflection layer 11 is formed such that at least the lens surface 121a and the top face 121b are coated. The video display system includes the reflection screen 10 and a video resource. <P>COPYRIGHT: (C)2013,JPO&INPIT
申请公布号 JP2013092695(A) 申请公布日期 2013.05.16
申请号 JP20110235356 申请日期 2011.10.26
申请人 DAINIPPON PRINTING CO LTD 发明人 KATSURA YUKI;ISHII MIZUKI
分类号 G03B21/60;G02B3/00;G03B21/14 主分类号 G03B21/60
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