Invention Grant
- Patent Title: Laser projection device
- Patent Title (中): 激光投影装置
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Application No.: US12001591Application Date: 2007-12-12
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Publication No.: US07957047B2Publication Date: 2011-06-07
- Inventor: Kenji Konno
- Applicant: Kenji Konno
- Applicant Address: JP Hachioji-shi
- Assignee: Konica Minolta Opto, Inc.
- Current Assignee: Konica Minolta Opto, Inc.
- Current Assignee Address: JP Hachioji-shi
- Agency: Sidley Austin LLP
- Priority: JP2006-337780 20061215
- Main IPC: G02B26/08
- IPC: G02B26/08

Abstract:
A laser projection device includes: an incidence optical system condensing laser light, a scanning device deflect the laser light in a first scanning direction and a second scanning direction with a mirror, and a projection optical system guiding the deflected light to a surface to be scanned. The scanning device performs the deflection in the first scanning direction by resonant driving and performs the deflection in the second scanning direction by non-resonant driving. The incidence optical system has different optical powers in the first scanning direction and the second scanning direction, and makes light incident on the scanning device in a convergent state in the first scanning direction and in a substantially parallel light state in the second scanning direction. The projection optical system has a negative optical power in the first scanning direction.
Public/Granted literature
- US20080143979A1 Laser projection device Public/Granted day:2008-06-19
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