发明申请
- 专利标题： Irradiation control device
- 专利标题（中）： 照射控制装置
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申请号： US11127983申请日： 2005-05-12
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公开(公告)号： US20050199815A1公开(公告)日： 2005-09-15
- 发明人: Masashi Murakumo , Hiroaki Natori , Osamu Ikeda , Yutaka Maruta , Kunihiro Ikeda , Shinji Hidaka , Nobumasa Sasaki , Tamotsu Amamoto , Hiroyuki Nakashima
- 申请人： Masashi Murakumo , Hiroaki Natori , Osamu Ikeda , Yutaka Maruta , Kunihiro Ikeda , Shinji Hidaka , Nobumasa Sasaki , Tamotsu Amamoto , Hiroyuki Nakashima
- 主分类号： G01J1/42
- IPC分类号： G01J1/42 ; G03B7/16 ; G03B7/28 ; G03B15/00 ; G03B15/02 ; G03B15/05 ; G03B17/18 ; H04N5/235 ; H04N5/238
摘要：
In an irradiation control device which extends a longevity of an LED, a feedback control is performed to an irradiating portion by an output signal of a photo device provided in relation to the irradiating portion, thereby making brightness fixed. Alternatively, by performing image processing to an image taken by a camera, brightness on a screen is calculated, so that a feedback control is performed to the irradiating portion to make the brightness fixed. Alternatively, based on a recognition rate upon character recognition within the image taken by the camera, a feedback control is performed to the irradiating portion to make the brightness fixed.
公开/授权文献
- US07071472B2 Irradiation control device 公开/授权日：2006-07-04
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