Patent ID: 6296036
Filing Date: 2001-10-02
Classification: B64C,G01S

Abstract:
An automatic-shutter system for eye protection for an operator of an aircraft against in-band frequency agile laser beam comprising:(i) a multi-dirctional detector for detecting a first laser pulse of laser light;(ii) processing means in electrical communication with said multi-directional detector for processing said detected first laser pulse of laser light and to generate an output signal responsive thereto, said processing means being a comparator circuit having a predetermined reference set voltage which corresponds to a threshold level which must be exceeded by said output signal of said multi-directional detector before said comparator circuit is activated, said threshold level corresponding to a signal level that would be received from said multi-directional detector after said multi-directional detector detects said first laser pulse of sufficient fluence to cause damage level to a human eye, said damage level being further defined as the maximum permissible exposure (MPE) in according with laser safety standards;(iii) shutter actuating means responsive to the output of said processing means for actuating or dropping the particular shutter(s) on the aircraft that will provide protection against subsequent pulses of laser light; and,(iv) a plurality of shutters which can be actuated or dropped in response to said shutter actuating means.