发明名称 Photometric device with accumulation control
摘要 A photometric device includes a storage-type photometric sensor, a first control means that performs accumulation control on the photometric sensor based upon an average value of an output of the photometric sensor, a second control means that performs accumulation control on the photometric sensor based upon a maximum value of the output of the photometric sensor, and an accumulation control means that controls the second control means to perform next accumulation control, if the maximum value of the output of the photometric sensor on which the accumulation control is performed by the first control means exceeds a saturation output level of the photometric sensor, and controls the first control means to perform next accumulation control, if the maximum value of the output of the photometric sensor does not exceed the saturation output level of the photometric sensor.
申请公布号 US8670044(B2) 申请公布日期 2014.03.11
申请号 US201113067647 申请日期 2011.06.16
申请人 TAKEUCHI HIROSHI;NIKON CORPORATION 发明人 TAKEUCHI HIROSHI
分类号 H04N5/235;G03B7/28;H04N3/14;H04N5/225;H04N5/335;H04N101/00 主分类号 H04N5/235
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