| 摘要 |
PURPOSE:To obtain an arbitrary beam intensity pattern by dividing a beam through a double focus mirror into two beams and then condensing them separately in a beam system wherein a total reflection mirror and a double focus mirror are assembled. CONSTITUTION:The laser beam from a laser oscillator is reflected, first, by the total reflection mirror 1, then, by double focus mirrors 2, 3 to be divided into two beams and condensed. Accordingly, two beams obtained by dividing one beam can be condensed at two points which are a fine distance apart from each other. Therefore, various beam intensity distributions different in beam intensity and interbeam distance are obtained. |
