Patent
1986-06-17
1991-02-05
Lee, John D.
350 962, G02B 632
Patent
active
049899449
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).
REFERENCES:
patent: 4265511 (1981-05-01), Nicia et al.
patent: 4451115 (1984-05-01), Nicia et al.
patent: 4452506 (1984-06-01), Reeve et al.
Nicia Antonius J. A.
Potters Cornelis J. T.
Tholen Antonius H. L.
Botjer William L.
Lee John D.
Ngo John
U.S. Philips Corp.
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