Invention Grant
US08643923B2 Optical scanning device, optical scanning method, program, and image display device
有权
光学扫描装置，光学扫描方法，程序和图像显示装置
- Patent Title: Optical scanning device, optical scanning method, program, and image display device
- Patent Title (中): 光学扫描装置，光学扫描方法，程序和图像显示装置
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Application No.: US13511462Application Date: 2010-11-09
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Publication No.: US08643923B2Publication Date: 2014-02-04
- Inventor: Osamu Ishibashi
- Applicant: Osamu Ishibashi
- Applicant Address: JP Tokyo
- Assignee: NEC Corporation
- Current Assignee: NEC Corporation
- Current Assignee Address: JP Tokyo
- Agency: Sughrue Mion, PLLC
- Priority: JP2009-267486 20091125
- International Application: PCT/JP2010/069908 WO 20101109
- International Announcement: WO2011/065219 WO 20110603
- Main IPC: G02B26/08
- IPC: G02B26/08
Abstract:
An optical scanning device includes: a first scanning; a first scanning mirror driving unit; a light emission signal output unit; a light receiving unit; and a phase control unit which controls the first scanning mirror driving unit so as to delay a phase of the oscillation of the first scanning mirror when the light receiving unit outputs the detection signal before intermediate time in a case where the light receiving unit does not output the detection signal during a predetermined period of time, the phase control unit controlling the first scanning mirror driving unit so as to advance a phase of the oscillation of the first scanning mirror when the light receiving unit outputs the detection signal after the intermediate time in the case where the light receiving unit does not output the detection signal during the predetermined period of time.
Public/Granted literature
- US20120275001A1 OPTICAL SCANNING DEVICE, OPTICAL SCANNING METHOD, PROGRAM, AND IMAGE DISPLAY DEVICE Public/Granted day:2012-11-01
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