LIGHT SOURCE TURN-ON/OFF CONTROLLER

摘要

A light source turn-on/off controller is characterized in that it comprises a turn-on/off timing signal input section, a PWM signal generating section for generating a pulse signal having a varying duty cycle corresponding to the rise/fall of emission due to the turn-on/off of the filament in response to the rise/fall of the timing signal, an emission control section for controlling an emitting section in response to the pulse signal, and a storage section storing a control data table for duty cycle control made by the PWM signal generating section, that the control data table includes a rise table referenced at the rise of emission and a fall table referenced at the fall, and that in the rise and fall tables, the elapsed time from the rise/fall of the timing signal is associated with the duty cycle of the pulse signal, and the rise and fall tables cannot be superposed on each other.