发明名称 PHOTOMETER
摘要 PROBLEM TO BE SOLVED: To have the function for returning the output from a photometer circuit to the normal output by performing the predetermined processing in the case where a judgment whether the output from the photometer circuit is normal or abnormal is judged and where abnormality of the output is judged. SOLUTION: This photometer is provided with a photometer circuit 12 for measuring the light of a field to be photographed with a storage-type photometer element, a storage control unit 19 for controlling the storage time of the photometer circuit 12, and an abnormal detecting unit 18 for judging whether the reversing work of the output of the photometer circuit 12 is generated or not. In the case where the abnormal detecting unit 18 judges that the reversing work of the output of the photometer circuit 12 is generated, the storage control unit 19 sets the storage time of the photometer element at the time of the next photometry at the minimum value.
申请公布号 JPH09257570(A) 申请公布日期 1997.10.03
申请号 JP19960067922 申请日期 1996.03.25
申请人 NIKON CORP 发明人 IWASAKI HIROYUKI
分类号 G01J1/16;G01J1/44;G03B7/091;G03B7/099;G03B7/0997 主分类号 G01J1/16
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