Patent ID: 9426345
Filing Date: 2016-08-23
CPC Classification: B60Q,B60R,G03B,G08B,G08G,H04N,H05B

Claim Text:
1. A photo preventer comprising: a housing having an intruder light flash detector which will generate a counter flash when detecting the intruder light flash; a flash unit and associated reflector means in the housing functioning to direct the counter flash about perpendicular to the detected intruder light flash; circuitry to minimize false signals from slow rise time flashes in a vehicle traffic environment; wherein the flash unit further comprises a plurality of voltage storage devices and voltage charge devices to power the flash unit and comprises a high speed switching network to activate one voltage storage device as soon as a predecessor voltage storage device is triggered, such that when a first voltage storage of the plurality of voltage storage devices discharges its voltage to the flash unit, the high speed switching network switches to another voltage storage device of the plurality of voltage storage devices, while the first voltage storage device is recharged from one or more of the plurality of voltage charge devices; and wherein the counter flash covers a target area and over exposes only a limited portion of the intruding camera's field of view.