发明授权
- 专利标题： Compensation for thermal degradation of the optical performance in a digital imaging system
- 专利标题（中）： 数字成像系统中光学性能的热降解补偿
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申请号： US327992申请日： 1999-06-08
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公开(公告)号： US6148152A公开(公告)日： 2000-11-14
- 发明人: Robert Cazier , Charles H McConica
- 申请人： Robert Cazier , Charles H McConica
- 申请人地址： CA Palo Alto
- 专利权人： Hewlett-Packard Company
- 当前专利权人： Hewlett-Packard Company
- 当前专利权人地址： CA Palo Alto
- 主分类号： G03B13/36
- IPC分类号： G03B13/36 ; G02B7/02 ; G02B7/28 ; G02B27/00 ; H04N1/028 ; H04N5/217 ; H04N5/232 ; H04N5/361
摘要：
A system for thermal compensation of the optical performance of a lens system in a digital imaging device can improve the performance of the digital imaging system. The dark current from the photosensor is used to measure the temperature of the lens system. The digital processing system can use the temperature information to correct for aberrations in the lens system caused by changes in temperature. The focus function can use the temperature information to more accurately position the lens for optimum focus.
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