Patent ID: 7826070
Filing Date: 2010-11-02
Classification: G02B

Abstract:
1. A scanning optical system adjusting device for making adjustment of a scanning optical system which has a light emitting unit emitting a light beam, a rotary polygon mirror causing the light beam emitted by the light emitting unit to perform scanning, and an adjusting mechanism adjusting the light beam emitted by the light emitting unit, in an assembly unit of the scanning optical system, the scanning optical system adjusting device comprising: a static angle control unit stopping the rotation of the rotary polygon mirror to maintain a rotation angle of the rotary polygon mirror in the assembly unit of the scanning optical system at a predetermined angle; and a light beam parameter measuring unit arranged in a predetermined positional relation with the assembly unit of the scanning optical system and measuring a predetermined parameter of the light beam reflected by the rotary polygon mirror maintained at the predetermined angle by the static angle control unit.