Patent ID: 6625399
Filing Date: 2003-09-23
Classification: G01J,G01W,Y02A

Abstract:
A flash detection device comprising:a photosensor having a predetermined spectral sensitivity capable of detecting omni-directional light flash events of wavelengths including deep UV through far IR and producing an output signal in response thereto; an amplification means electrically connected to said photosensor for amplifying said output signal; a gain adjusting sensor connected to said amplifier for adjusting the gain of the device based on the difference between the ambient light levels and the flash event levels; a comparator means electrically connected to said gain adjusting sensor for monitoring said output signal, said comparator means discriminating between said flash event levels and said ambient light levels; timing means electrically connected to said comparator for receiving said output signal and maintaining said output signal for a predetermined time period; and detecting means electrically connected to said timing means for receiving said output signal therefrom.