BEAM SHAPER

摘要

A beam shaper is provided to flatten a Gauss type luminance shape in one-dimensional direction after receiving an optical beam outputted from a laser light source and to create a parallel beam. A beam shaper includes a light source(10). A first aspherical lens(11) flattens a Gauss type light to form a flattened beam. A second aspherical lens(12) outputs a beam after converting the beam flattened in the first aspherical lens to a parallel beam. The first aspherical lens allows a non-spherical surface to be formed at one side thereof opposed against the light source. The second aspherical lens allows the non-spherical surface to be formed at one side thereof faced to the first aspherical lens. The first aspherical lens outputs the flattened beam formed by flattening light outputted from the light source.