Laser hardening tool

Details Laser hardening tool Laser hardening tool

2006-12-15

2008-05-20

Pak, Sung (Department: 2874)

Optical waveguides

Noncyclindrical or nonplanar shaped waveguide

C385S116000, C385S119000

Reexamination Certificate

active

07376329

ABSTRACT:
The invention provides a laser hardening tool having little laser output loss. The laser hardening tool100condenses the irradiated beams LB1from a semiconductor laser stack120via a condensing optical lens134, and creates parallel light beams LB3via a diverging optical lens142. The laser beams LB4having been bent by a first mirror160travels through an optical waveguide150having a rectangular cross-sectional shape. The laser beams LB5having been condensed by a re-condensing optical lens170are irradiated through a nozzle190to subject a work to hardening. The number of reflections of the laser beams LB4in the angular optical waveguide150is small, and thus the loss of laser output is reduced.

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European Search Report for corresponding Application No. 06405536 dated May 15, 2007.

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