| 摘要 |
PURPOSE:To comparatively, and automatically perform an automatic adjustment for a white balance with a simplified and low cost structure, with high accuracy, by setting the white balance after completing the insertion of a white filter to an optical system corresponding to the start of a loading. CONSTITUTION:When a power source switch is turned on, a battery voltage, the breakage of a claw in a tape, and the insertion of a packet, are detected, and after that, when no abnormal state is present, a power source is supplied to each circuit, and a loading cam 20 is rotated, and a white filter 16 starts to close, then a tape loading is also started. when an insertion detection circuit 24 detects the complete closing of the white filter 16 on the way of the loading, a process is started by an automatic white balance processing circuit 26, and it is completed by the completion of the tape loading. The completion of an automatic white balance process is transmitted to a computer 18, and a photographing state, or a top state is generated.
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