Photoelectric detector for a register control device within a ro

Details Photoelectric detector for a register control device within a ro Photoelectric detector for a register control device within a ro

1996-05-07

1998-05-05

Westin, Edward P.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

2505593, G02B 632, G01N 2186

Patent

active

057477957

ABSTRACT:
A detector comprises a row of scanning devices arranged in front of a web to extend transverse to the direction of movement of the web. Each device includes one or two optical illumination fibers associated with a single optical scanning fiber that leads the reflective light toward a photodiode belonging to a row situated at a remote position in the machine. Each of the optical scanning fibers is held in rigid optical relation with an associated spherical or semi-spherical lens by means of an optical glue.

REFERENCES:
patent: 4329107 (1982-05-01), Kapany et al.
patent: 4745288 (1988-05-01), Hurley et al.
patent: 5126578 (1992-06-01), Roch et al.
patent: 5215011 (1993-06-01), Monney
patent: 5329466 (1994-07-01), Monney

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