Patent ID: 7090360
Filing Date: 2006-08-15
Classification: G03B

Abstract:
1. A projector that forms an optical image by modulating a light beam irradiated by a light source in accordance with image information and projects the optical image by a projection optical system in an enlarged manner, comprising: a projection optical system position adjuster that moves the projection optical system on a plane orthogonal to a light-projecting direction and adjusts a position of a projection area of the projection optical system; and a casing in which the projection optical system position adjuster and the projection optical system are housed; the projection optical system position adjuster having a first dial and a second dial exposed from the casing when the first dial and the second dial are housed in the casing to adjust a position of the projection optical system; a moving direction of the projection optical system according to a rotation of the first dial being approximately orthogonal to a moving direction of the projection optical system according to a rotation of the second dial; and rotary directions of the first dial and the second dial at parts exposed from the casing being approximately correspondent to the directions to which the projection optical system is moved.