LASER EMITTING BARREL FOR OPTICAL FIBER

摘要

PROBLEM TO BE SOLVED: To prevent the deviation of focal point and the deterioration of focusing due to the heat generation caused by a partial scatter or absorption of laser light.

SOLUTION: The laser emitting barrel 1 is provided with a connected part 3 of the emitting end 2 of an optical fiber, a single lens or a plurality of lenses 4 and 5 which condense the laser light emitted from the optical fiber, and a lens holding barrel 9 which holds the lenses 4 and 5 and has an emitting port 7 of the laser light, and a cooling medium passage 10 is provided on the lens holding barrel 9.

COPYRIGHT: (C)2004,JPO