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:
Feb. 18, 1992
Filed:
Mar. 23, 1990
Applicant:
Inventor:
David M Buzawa, San Jose, CA (US);
Assignee:
Iris Medical Instruments, Inc., Mountain View, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
385 33 ; 385 15 ;
Abstract
A technique for coupling the output of a laser diode (30) to an optical fiber (32) entails disposing an optical train (37,38) between the source and the fiber, and locating the fiber end at or near the exit pupil of the optical train. In one embodiment of the invention, light from the laser diode source is imaged by a first lens (37) of focal length f.sub.1, forming a magnified real image of the source at a convenient distance, the real image is reimaged by a second lens (37) of focal length f.sub.2, and the fiber end is located at the exit pupil. The real image may be reimaged approximately at infinity.