Invention Application
- Patent Title: LIGHT EMITTING DEVICE AND IMAGE SCANNING APPARATUS
- Patent Title (中): 发光装置和图像扫描装置
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Application No.: US13175057Application Date: 2011-07-01
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Publication No.: US20120002248A1Publication Date: 2012-01-05
- Inventor: Koji SHIMOKAWA , Yusuke Hashizume , Hiroyuki Shiraishi , Naoya Koseki , Katsuya Nagamochi , Mitsuru Hatano , Sueo Ueno
- Applicant: Koji SHIMOKAWA , Yusuke Hashizume , Hiroyuki Shiraishi , Naoya Koseki , Katsuya Nagamochi , Mitsuru Hatano , Sueo Ueno
- Applicant Address: JP Tokyo JP Tokyo
- Assignee: Toshiba Tec Kabushiki Kaisha,Kabushiki Kaisha Toshiba
- Current Assignee: Toshiba Tec Kabushiki Kaisha,Kabushiki Kaisha Toshiba
- Current Assignee Address: JP Tokyo JP Tokyo
- Main IPC: H04N1/04
- IPC: H04N1/04 ; H05B37/02
Abstract:
There is a light emitting device including a light source which generates light and of which the quantity of light emission changes according to a driving current, a driving circuit which runs the driving current to the light source to drive the light source, and a controller which controls the driving circuit and raises the driving current of the light source as the quantity of light emission from the light source decreases.
Information query
