发明名称 CAMERA WITH SELF-TIMER
摘要 PURPOSE:To not execute exposure when an obstruction enters a photographic viewing angle just before the exposure by extending an interval time or stopping photographing when abnormality is recognized in a photometric value in self- timer phtographing. CONSTITUTION:At the time of a self-timer mode, a CPU 3 defines the variable (n) of a measurement value An detected by a photometric sensor (AE sensor) 5 as 1, then actuates a timer to enter the interval time. A photometric value A1 is stored in memory, then a photometric value A2 is stored. When ¦A2-A1¦ is <= B (a photometic error), the photometic value A1 is erased from the memory to advance the variable (n) by 1. An action for photometry is continued and when ¦An-An-1¦ is >= B, it is judged that some abnormality is occurred in a viewing angle and the interval time is extended, so that the self-timer is initialized again. When the count value of the number of the restarting times of the self-timer is the previously set number of times r above, a photographing state is released.
申请公布号 JPH06202222(A) 申请公布日期 1994.07.22
申请号 JP19920358973 申请日期 1992.12.25
申请人 CANON INC 发明人 TAKAGISHI HIROAKI
分类号 G02B7/28;G03B13/36;G03B17/40;H04N5/232;H04N5/30;(IPC1-7):G03B17/40 主分类号 G02B7/28
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