Patent ID: 9669637
Date: 2017-06-06
CPC Classifications: B41J,G02B,G03G,G06K,H04N

Claim:
1. A light scanning apparatus comprising: a light source; a deflector configured to deflect a light flux from the light source; an imaging optical system configured to guide the light flux deflected at the deflector onto a scanned surface; and a control unit configured to control a light-emitting of the light source based on partial magnification shift of the imaging optical system, wherein the condition is satisfied at an image height Y where a scanning angle θ is greatest, when the image height Y in a main scanning direction on the scanned surface to which the light flux deflected at the scanning angle θ by the deflector enters is expressed by where K represents an imaging coefficient on an optical axis of the imaging optical system and B represents a scanning properties coefficient.