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1. 发明授权

US5679946A Photo-taking lens temperature compensation system 失效
标题翻译：摄影镜头温度补偿系统
公开(公告)号：US5679946A
公开(公告)日：1997-10-21
申请号：US667488
申请日：1996-06-24
申请人： Hiromu Mukai , Yasumasa Sugihara , Rieko Hasegawa
发明人： Hiromu Mukai , Yasumasa Sugihara , Rieko Hasegawa
IPC分类号： G02B7/02 , G02B7/08 , G01J1/20
CPC分类号： G02B7/028
摘要： A system that is mounted in a camera capable of focal point detection and that performs correction of the focal point detection data in accordance with the temperature, wherein the temperature inside the photo-taking lens barrel is measured and the focal point detection data is corrected based on the temperature data for the interior of the photo-taking lens barrel. Using this construction, because the temperature of a lens element comprising the photo-taking lens can be accurately measured even where the ambient temperature of the camera has suddenly changed, for example, appropriate correction suitable for the temperature conditions may be performed. Also disclosed is a construction in which the correction of the focal point detection data is performed based on not only the temperature data but also the focal length data for the photo-taking lens. Using this construction, appropriate correction suitable for the temperature conditions may be performed even when, for example, the focal length of the photo-taking lens has changed.
摘要翻译：一种安装在能够进行焦点检测的相机中的系统，并且根据温度执行焦点检测数据的校正，其中测量摄像镜筒内部的温度并且基于焦点检测数据被校正关于摄影镜头镜筒内部的温度数据。使用这种结构，即使在照相机的环境温度突然变化的情况下，即使在照相机的环境温度突然变化的情况下也可以精确地测量包括摄影镜头的透镜元件的温度，例如可以执行适合于温度条件的适当校正。还公开了一种结构，其中，不仅基于温度数据而且基于摄影镜头的焦距数据执行焦点检测数据的校正。使用该结构，即使例如摄影镜头的焦距发生变化，也可以进行适合于温度条件的适当的校正。

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