Invention Grant
- Patent Title: Projection display device, information processing device, projection display system, and program
- Patent Title (中): 投影显示装置，信息处理装置，投影显示系统和程序
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Application No.: US14129228Application Date: 2012-07-03
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Publication No.: US09172931B2Publication Date: 2015-10-27
- Inventor: Fumihiro Hasegawa , Toshio Miyazawa , Michiyoshi Tachikawa
- Applicant: Fumihiro Hasegawa , Toshio Miyazawa , Michiyoshi Tachikawa
- Applicant Address: JP Tokyo
- Assignee: RICOH COMPANY, LIMITED
- Current Assignee: RICOH COMPANY, LIMITED
- Current Assignee Address: JP Tokyo
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2011-150440 20110706; JP2012-060764 20120316
- International Application: PCT/JP2012/067417 WO 20120703
- International Announcement: WO2013/005857 WO 20130110
- Main IPC: G03B21/14
- IPC: G03B21/14 ; H04N9/31 ; G03B21/20 ; G09G5/393 ; G03B21/53
Abstract:
A projection display device including: an image light projecting unit that projects image light on a screen; a distance measurement unit that measures distance to the screen; an obstacle detecting unit that detects an obstacle between the screen and the image light projecting unit on the basis of distance information obtained by the distance measurement unit and, according to a result of this detection, determines an adjustment area where the image light to be projected is to be adjusted; and a projection adjusting unit that adjusts the image light in the adjustment area are included.
Public/Granted literature
- US20140118705A1 PROJECTION DISPLAY DEVICE, INFORMATION PROCESSING DEVICE, PROJECTION DISPLAY SYSTEM, AND PROGRAM Public/Granted day:2014-05-01
Information query
