Constant path-length beam translating system and method

Details Constant path-length beam translating system and method Constant path-length beam translating system and method

1997-03-14

1999-12-21

Nguyen, Thong

Optical: systems and elements

Mirror

Plural mirrors or reflecting surfaces

359856, 359855, 359861, 359876, G02B 508

Patent

active

060039973

ABSTRACT:
A method and system are provided for the constant path-length translation of a laser beam. At least one pair of mirrors disposed at an angle (e.g., 90.degree.) to one another and fixed in relation to one another are disposed in the path of the (incoming) laser beam. The mirrors are positioned such that the incoming laser beam impinges on the first mirror, is reflected to the second mirror, and iii) is reflected from the second mirror as an (outgoing) laser beam parallel to the incoming laser beam. A positioner is coupled to the mirrors for simultaneously moving them in a direction that is parallel to the target plane and in a plane defined by the incoming and outgoing laser beams.

REFERENCES:
patent: 5015096 (1991-05-01), Kowalski et al.

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