The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 07, 2000
Filed:
May. 04, 1998
Timothy J Johnston, Mountain View, CA (US);
John L Nightingale, Portola Valley, CA (US);
Coherent, Inc., Santa Clara, CA (US);
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.