Patent ID: 6960035
Filing Date: 2005-11-01
Classification: G02B,H01S

Abstract:
1. An exposure head comprising: a laser apparatus including a fiber light source which includes an optical fiber with an incidence end and an emission end, the fiber light source emitting laser light that enters the incidence end of the optical fiber from the emission end of the optical fiber, the optical fiber including an optical fiber having a uniform core diameter and a cladding diameter of the emission end which is smaller than a cladding diameter of the incidence end; a spatial modulation element which modulates laser light irradiated from the laser apparatus, the spatial modulation element including numerous pixel portions, light modulation states of which change in accordance with respective control signals, the pixel portions being arranged in a two-dimensional form on a support; and an optical system for focusing laser light that has been modulated at the pixel portions on an exposure surface.