Optical head adapted to receive a light guide plug

Details Optical head adapted to receive a light guide plug Optical head adapted to receive a light guide plug

1989-08-15

1991-01-22

Lee, John D.

G02B 636

Patent

active

049866214

ABSTRACT:
An optical head having a photoelectric converter at one end and a socket for a light guide plug at the opposite end, has a spring loaded apertured diaphragm adapted to press lightly against the front end of the plug when it is inserted into the socket. The diaphragm has a cylindrical aperture at its side turned toward the plug and an opening defined by a frustoconical surface widening in the direction of the converter. This surface and the rear wall of the diaphragm can be provided with a light absorbent coating or the surface can be reflective and the rear wall provided with a light absorbent coating.

REFERENCES:
patent: H491 (1988-07-01), Pitruzzello et al.
patent: 4268799 (1981-05-01), McCrickerd
patent: 4723257 (1988-02-01), Baer et al.
Hewlett-Packard Journal Article, Feb. 1987, pp. 22-27, Precision Optical Heads for 850 to 1700 and 450 to 1020 Nanometers.

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