| 摘要 |
<p>PROBLEM TO BE SOLVED: To split the laser beam with small energy loss in a simple constitution by splitting the incident laser beam into two polarized components having the polarized directions orthogonal to each other, and synthesizing the beam by deviating one optical axis by the small angle. SOLUTION: A first beam slitter 1 splits the laser beam into first and second polarized components 101, 102. The first polarized component 101 has the plane of polarization parallel to the plane of the drawing, while the second polarized component 102 has the plane of polarization perpendicular to the plane of the drawing. The second polarized component 102 is changed in the optical path by 90 deg. by a first beam slitter, and reflected by first and second total reflection mirrors 4, 5. During this time, the second polarized component 102 is deviated in the optical axis by the small angle, and reflected by the second beam slitter. The first polarized component 101 passes the second beam slitter without any change. The optical axis of the second polarized component 102 is the optical axis deviated from the original optical axis by the small angle, and two beams 101, 102 are outputted. When the beam splitting equipment is employed in a laser beam texture equipment, high-speed machining can be performed without using an expensive, large continuous oscillation laser beam equipment.</p> |
