DETECTION METHOD FOR FORGETTING OF LENS CAP REMOVAL AND VIDEO RECORDING APPARATUS
PROBLEM TO BE SOLVED: To provide detection method for forgetting of lens cap removal by which opening/closing of a lens cap is electronically and accurately judged taking leaking light of the lens cap into consideration without adding a special switch for detecting the opening/closing of the lens ca...
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Main Authors | , |
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Format | Patent |
Language | English |
Published |
05.02.2009
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Subjects | |
Online Access | Get full text |
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Summary: | PROBLEM TO BE SOLVED: To provide detection method for forgetting of lens cap removal by which opening/closing of a lens cap is electronically and accurately judged taking leaking light of the lens cap into consideration without adding a special switch for detecting the opening/closing of the lens cap, thereby an erroneous operation due to power disconnection is notified to user. SOLUTION: The opening/closing of the lens cap can be highly accurately detected by taking into consideration a detection result of an AGC signal and a detection result of luminance average, and useless battery consumption is suppressed by displaying warning to a user, and at the same time automatically disconnecting the power for a user who is not aware of the warning. COPYRIGHT: (C)2009,JPO&INPIT |
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Bibliography: | Application Number: JP20070186645 |