Patent ID: 6061522
Filing Date: 2000-05-09
Classification: G03B

Abstract:
A flash lamp for use both as a main and as a slave with a camera unit including a camera, said flash lamp comprising:a main housing which contains a flash light outputting part;a light signal receiving part on said main housing, said light signal receiving part being detachably connectable to an optical cable for transmitting optical signals therethrough, said light signal receiving part having a transparent water-proof window and light sensor means inside said window for sensing light only through said optical cable when said optical cable is attached to said light signal receiving part, sensing light received through said window when said optical cable is detached from said light signal receiving part, and outputting an electrical detection signal in response to said sensed light; anda signal conversion circuit for receiving said detection signal from said light signal receiving part and transmitting a flash control signal to said flash light outputting part to control light output from said flash light outputting part.