Optical scanner reflecting and outputting light with controlled intensity and image forming apparatus using same

摘要

An optical scanner is disclosed which includes: a reflective surface from which incoming light is reflected; a scanning mechanism altering a reflective-surface angle of the reflective surface, relative to an entry direction in which the incoming light enters the reflective surface, to thereby scan reflected light from the reflective surface; and a controller controlling an intensity of the incoming light, depending on the reflective-surface angle.