Illumination device for copying machine

Details Illumination device for copying machine Illumination device for copying machine

1974-07-01

1976-02-03

Moses, Richard L.

Buckles, buttons, clasps, etc.

240 114R, 355 1, 355 30, 355 67, F21V 2900

Patent

active

039366723

ABSTRACT:
An illumination device for use in a copying machine of a type wherein the optical system comprises an image transmitter formed by a bundle of optical fibers of graded refractive index. The illumination device comprises a halogen vapor lamp housed in position within a casing forming a reflector and a pair of ventilation fans arranged adjacent both ends of the casing for simultaneously blowing and exhausting air into and from the casing to cool the halogen vapor lamp within the casing. The ventilation fans are reversible in operation.

REFERENCES:
patent: 2431520 (1947-11-01), Streich
patent: 3265885 (1966-08-01), Porter
patent: 3433566 (1969-03-01), Blatter
patent: 3532424 (1970-10-01), Miles
patent: 3598486 (1971-08-01), Kushima
patent: 3741642 (1973-06-01), Reick et al.
patent: 3765828 (1973-10-01), Lux
patent: 3779638 (1973-12-01), Ravera et al.

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