Aiming and focussing device for fiber-transported laser radiatio

Details Aiming and focussing device for fiber-transported laser radiatio Aiming and focussing device for fiber-transported laser radiatio

1998-05-04

2000-11-07

Bovernick, Rodney

Optical waveguides

With optical coupler

Input/output coupler

385 33, 385117, 385902, G02B 626, G02B 632

Patent

active

061447870

ABSTRACT:
Apparatus (20) for aiming and projecting laser radiation emitted from an output-face (56) at an output-end (52) of an optical-fiber transmitter (54), includes a target (26) surrounding the output-end of the optical-fiber transmitter and held in a fixed relationship therewith. One or more light sources (46) illuminate the target with visible light such that the target directs at least a portion of the visible light in the emission direction of the laser radiation whereby when the optical-fiber transmitter is directed toward a surface, the visible light directed by the target indicates an incidence region of the laser radiation on the surface. The apparatus optionally includes an optical system (27) arranged to project a visible image (72) of the target and an image (74) of the output-face of the optical fiber transmitter. The degree of focus of the visible target-image on the surface corresponds to the degree of focus of the laser radiation on the surface.

REFERENCES:
patent: 4215937 (1980-08-01), Borsuk
patent: 4458683 (1984-07-01), Saito et al.
patent: 4761054 (1988-08-01), Ishimori et al.
patent: 4898444 (1990-02-01), Grimes et al.
patent: 5031980 (1991-07-01), Colles et al.
patent: 5394492 (1995-02-01), Hwang
patent: 5625459 (1997-04-01), Driver
patent: 5815627 (1998-09-01), Harrington

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