MONITORING CAMERA FOR VEHICLES FOR OBTAINING INFRARED RANGE UNIFORM ILLUMINANCE OF DARK STATE FOR OBJECT WITHIN THE CAMERA VIEW ANGLE

摘要

PURPOSE: A monitoring camera for vehicles for obtaining infrared range uniform illuminance of a dark state is provided to enable the light of the IR-LED having directivity to uniformly illuminate the object plane within the view angle of the monitoring camera by installing IR-LED with constant angle for the two axial directions of the plane on the PCB(Printed Circuit Board).;CONSTITUTION: The IR- LED(22) having directivity is used as the secondary light source. A pair of PCBs(20) is separated-installed within the monitoring camera loaded in the vehicles. A plurality of IR-LEDs, which are electrically connected, are installed on the PCB in the vertical axis direction. The IR-LEDs are installed to have the angle of the specified range for two axial directions on the PCB and obtains the uniform illuminance state in the plane of the object in the dark state.;COPYRIGHT KIPO 2010