LASER DRIVING DEVICE, OPTICAL SCANNER, AND IMAGE FORMATION APPARATUS

摘要

PROBLEM TO BE SOLVED: To provide a laser driving device that can output a laser beam in the same optical waveform even when an amount of light of the laser beam is changed, and to provide an optical scanner and an image formation apparatus.SOLUTION: A laser driving device used for an image formation apparatus comprises: a surface emission laser beam source 1 emitting a laser beam; a light source drive control unit 5a performing an on/off drive control of the surface emission laser beam source 1 while an amount of light of the laser beam emitted from the surface emission laser beam source 1 is maintained constant; an amount of light adjustment element 3 arranged on an optical path of the laser beam emitted from the surface emission laser beam source 1, and capable of electrically converting the transmissivity or reflection rate of the incident laser beam; and a peak amount of light control unit 5b that, while an amount of light of the laser beam emitted from the surface emission laser beam source 1 is maintained constant, controls the transmissivity or the reflection rate of the amount of light adjustment element 3 and that adjusts a peak amount of light of the laser beam emitted from the amount of light adjustment element 3 by transmission or reflection in the amount of light adjustment element 3.