Patent ID: 7450285
Filing Date: 2008-11-11
Classification: G03B

Abstract:
1. A laser projection apparatus comprising: a laser light source; an incident optical system which is supplied with a light beam from the laser light source; a scanning device for two-dimensionally scanning the light beam from the incident optical system; and a projection optical system for projecting the light beam from the scanning device onto a screen, wherein the scanning device includes a resonant drive mirror for performing deflection in a main scanning direction, and at least one light source image is formed in an optical path ranging from the scanning device to the screen, and the projection optical system has such a power that, with respect to the main scanning direction, a positive power thereof becomes increasingly greater toward peripheries of the main scanning direction, and the incident optical system has a power in the main scanning direction and a power in the sub scanning direction, the power in the main scanning direction being different from the power in the sub scanning direction.