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. 05, 1991
Filed:
Jun. 17, 1986
Antonius H Tholen, Eindhoven, NL;
Cornelis J Potters, Eindhoven, NL;
Antonius J Nicia, Eindhoven, NL;
U.S. Philips Corp., New York, NY (US);
Abstract
A spherical lens (5) is fixed to the front end of a tubular housing (1) and an end part of a lightconducting fibre (9) is fixed with its first end face (11) in the focal plane of the lens. The line through the center (13) of the lens (5) and the middle of the first end face (11) is the optical axis (17). The housing (1) with the lens (5) is placed against a seat (25), which is formed as a cavity with a rotationally symmetrical surface, on whose axis of rotation (27) a light detector (31) is mounted. The detector is designed to determine deviations between the direction of a light beam coming from the lens and the direction of the axis of rotation. Near the second end face (45) of the fibre (9) light is injected into the fibre, and the rear end of the housing is displaced in two directions (x, y) perpendicular to the optical axis, until the light beam emerging from the lens ( 5) coincides with the axis of rotation (27). The lens (5) with the seating (25) thereby functions as a ball hinge. The outer surface of the housing (1) is now finish-machined with a tool (49) that rotates around the axis of rotation (27).