Optical projection apparatus for image transfer type electrophot

Details Optical projection apparatus for image transfer type electrophot Optical projection apparatus for image transfer type electrophot

1976-12-21

1978-01-17

Griffin, Donald

Photocopying

Including fiber optics

355 8, G03B 2700, G03B 1528

Patent

active

040689360

ABSTRACT:
Optical projection apparatus for an image transfer type electrophotographic copier, wherein prism-shaped reflecting members are disposed at both ends of an optical fiber type image transmitter formed by a bundle of optical fibers having graded refractive indexes, so as to refract an optical path, whereby an optical image of an original document is projected towards the side peripheral surface of a photosensitive drum, reducing the height of the optical projection apparatus and thus providing a compact copier. The optical projection apparatus is so constructed that the image transmitter formed by a bundle of optical fibers having graded refractive indexes is fixedly held between the prism-shaped reflecting members including a prism portion and a support or body portion integrally formed therewith.

REFERENCES:
patent: 3898678 (1975-08-01), Walworth
patent: 3947106 (1976-03-01), Hamaguchi et al.
patent: 3955888 (1976-05-01), Kakiuchi et al.
patent: 3981575 (1976-09-01), Tanaka et al.

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