PARALLEL LASER BEAM SHEET GENERATION DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a device capable of suppressing attenuation of light intensity and minimizing the setting space of the device. SOLUTION: This device comprises a scanning means 3 receiving and extending linear laser beam from a laser beam source 1 in a sector shape, a first mirror 4 provided on a scanning object plane, a second mirror 5 opposed in parallel to the first mirror 5, and a Fresnel lens 6 transmitting the reflected light by the second mirror 5 to make it into a parallel light. COPYRIGHT: (C)2006,JPO&NCIPI