Patent ID: 8027076
Filing Date: 2011-09-27
Classification: B41J,G02B,H04N

Abstract:
1. A light scanning device comprising: a rotary deflector configured to reflect and deflect an incident luminous flux by plural reflection surfaces arrayed in a rotating direction and thus cause the incident luminous flux to scan a predetermined direction, in which at least one of the plural reflection surfaces is tilted with respect to the rotation axis of the rotary deflector; and a thrust-direction force canceling unit supported in a rotatable manner integrally with the plural reflection surfaces of the rotary deflector, and having a wind receiving surface tilted with respect to the rotation axis of the rotary deflector in a direction opposite to at least one surface of the reflection surfaces tilted with respect to the rotation axis, being disposed at a different position from the one surface in rotational direction and configured to cancel thrust-direction force resulted from the one surface.