发明名称 METHOD FOR CONTROLLING EXPOSURE
摘要 PROBLEM TO BE SOLVED: To provide a method for controlling exposure for an electronic still camera, capable of coping with photographing of a moving image without requiring photometric sequences (a step S51 and a step S52 in a figure 5) for fixing a stop value to be open. SOLUTION: The method is provided with a detection step (a step S1 in a figure 1) for detecting the luminance level of an imaging signal, a shutter speed changing step (a step S6) for varying the shutter speed (time for storing electric charges) of a CCD (4c) according to the result of detection and stop value changing steps (a step S3, a step S4 and a step S5) for varying the diaphragm aperture area of a diaphragm means 4b, so that the shutter speed lies in a range of 1/70 to 1/60 sec, so that the S/N ratio of the output signal of the CCD (4c) is optimized.
申请公布号 JP2002135650(A) 申请公布日期 2002.05.10
申请号 JP20000328605 申请日期 2000.10.27
申请人 VICTOR CO OF JAPAN LTD 发明人 KINOSHITA KOSUKE
分类号 G03B7/097;G03B19/02;H04N5/238;H04N101/00;(IPC1-7):H04N5/238 主分类号 G03B7/097
代理机构 代理人
主权项
地址