Invention Grant
US08630324B2 Semiconductor laser drive device and image forming apparatus incorporating same
有权
半导体激光驱动装置及其结合的图像形成装置
- Patent Title: Semiconductor laser drive device and image forming apparatus incorporating same
- Patent Title (中): 半导体激光驱动装置及其结合的图像形成装置
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Application No.: US13173329Application Date: 2011-06-30
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Publication No.: US08630324B2Publication Date: 2014-01-14
- Inventor: Daijiroh Sumino , Hiroaki Kyogoku
- Applicant: Daijiroh Sumino , Hiroaki Kyogoku
- Applicant Address: JP Tokyo
- Assignee: Ricoh Company, Ltd.
- Current Assignee: Ricoh Company, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Cooper & Dunham LLP
- Priority: JP2010-172471 20100730
- Main IPC: H01S3/10
- IPC: H01S3/10 ; B41J2/435
Abstract:
A semiconductor laser drive device includes a semiconductor-laser drive element to generate a drive current according to an input control signal to supply the drive current to a semiconductor laser, a control circuit to control the drive current by controlling the semiconductor-laser drive element, and a drive current detection circuit to detect a current value of the drive current supplied to the semiconductor laser and generate a digital control signal representing the detected digital value of the drive current to output.
Public/Granted literature
- US20120027037A1 SEMICONDUCTOR LASER DRIVE DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME Public/Granted day:2012-02-02
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