LASER LIGHT CONDENSER AND METHOD OF CONDENSING LASER LIGHT

摘要

PROBLEM TO BE SOLVED: To provide novel equipment and a method for obtaining a laser beam of a strong intensity by condensing pulse laser light without using a complicated optical system.

SOLUTION: A hollow tube 1 with a pair of opening portions 2 and 3 which are different in sizes and are opposite to each other is prepared. Pulse laser light is incident into the hollow tube 1 from the larger opening portion 2. The pulse laser light is condensed by multiple reflection on the inner wall face 1A of the hollow tube 1 from the larger opening portion 2 toward the smaller opening portion 3 and a condensed laser beam is formed. Thereafter, the condensed laser beam is emitted outside from the smaller opening portion 3.

COPYRIGHT: (C)2004,JPO