LASER DRIVE CIRCUIT METHOD FOR DRIVING LASER AND DEVICE USING LASER LIGHT

摘要

A laser driving circuit, a laser driving method, and an apparatus using laser light capable of reducing speckle noise due to coherent light of laser light are provided. There is provided a laser driving circuit for generating a laser driving current for driving a plurality of laser light sources for emitting laser light having different wavelengths based on an input video signal, By superimposing the high-frequency signals having frequencies exceeding the band of the video signal, the speckle noise due to the coherent light is reduced.