| 摘要 |
PURPOSE:To surely prevent triggering with a specified function from being unexpectedly performed by blink unconsciously performed. performed. CONSTITUTION:This camera is provided with a blink trigger means 1 performing the triggering with the specified function of a device when the value of the output change of the photoelectric converting means 16 caused by the blink of an observer is equal to or more than a specified value, and when output change continuing time is equal to or more than a specified time; and when the triggering is performed by the blink, distance between the eye of the observer and a detecting systems 16 and 23 is within a specified range, and reflectance in the periphery of the eyeball of the observer or the periphery of the eyeball by means of an illuminating means is nearly constant, that is, the change value of the reflected light quantity by means of the blink of a human being is equal to or more than the specified value, and output change level is equal to or more than the specified value in addition to the specified time; therefore, the output change at the time other than blink time can be differentiated. |
