Invention Grant
- Patent Title: Light source, light source device, laser image forming device and integrated circuit
- Patent Title (中): 光源，光源装置，激光成像装置及集成电路
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Application No.: US11995257Application Date: 2006-07-11
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Publication No.: US07873087B2Publication Date: 2011-01-18
- Inventor: Akihiro Morikawa , Ken'ichi Kasazumi , Tetsuro Mizushima , Kazuhisa Yamamoto , Shin-ichi Kadowaki
- Applicant: Akihiro Morikawa , Ken'ichi Kasazumi , Tetsuro Mizushima , Kazuhisa Yamamoto , Shin-ichi Kadowaki
- Applicant Address: JP Osaka
- Assignee: Panasonic Corporation
- Current Assignee: Panasonic Corporation
- Current Assignee Address: JP Osaka
- Agency: Wenderoth, Lind & Ponack, L.L.P.
- Priority: JP2005-201495 20050711
- International Application: PCT/JP2006/313724 WO 20060711
- International Announcement: WO2007/007733 WO 20070118
- Main IPC: H01S3/00
- IPC: H01S3/00
Abstract:
The light sources according to the present invention include a laser oscillator including a semiconductor laser, a drive circuit for the semiconductor laser, an ACC circuit, an APC circuit, and a switch, and a starting drive current storage device, and is controlled in such a manner that the driving current at the start of the laser driving be always constant, and after the start of the lighting, it is switched to the APC operation to carry out the power control of the laser light output.
Public/Granted literature
- US20090274182A1 LIGHT SOURCE, LIGHT SOURCE DEVICE, LASER IMAGE FORMING DEVICE AND INTEGRATED CIRCUIT Public/Granted day:2009-11-05
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