Patent ID: 9116458
Filing Date: 2015-08-25
Classification: G03G

Abstract:
1. A light scanning device, comprising: a light-emitting element with a plurality of light-emitting points, respective light fluxes being emitted from the plurality of light-emitting points; a deflecting part configured to reflect to deflect the respective light fluxes; and a reflective mirror configured to reflect the respective light fluxes reflected to be deflected by the deflecting part; wherein the light scanning device is configured to scan a scan object with the respective light fluxes passing through the deflecting part and the reflective mirror, a continuous scan deflection range of each of the light fluxes deflected by the deflecting part in a scan period of the scan object with the respective light fluxes is divided into a first deflection range where a reflection angle of each of the light fluxes with respect to the deflecting part is small and a second deflection range where the reflection angle is large, the second deflection range being adjacent to the first deflection range, a polarization direction of each of the light fluxes is set such that a reflectivity of the reflective mirror when each of the light fluxes deflected in the second deflection range is reflected becomes larger than a reflectivity of the reflective mirror when each of the light fluxes deflected in the first deflection range is reflected, and a rotation of the light-emitting element inclines an arranging direction of respective light-emitting points of the light-emitting element with respect to the rotation axis of the deflecting part, the inclination setting an incident interval of the light fluxes from the respective light-emitting points on the scan object.