Film transparency holder

Details Film transparency holder Film transparency holder

1990-08-16

1991-06-25

Wintercorn, Richard A.

Photocopying

Projection printing and copying cameras

With temperature or foreign particle control

355 75, G03B 2752, G03B 2762

Patent

active

050271512

ABSTRACT:
A method of mounting a transparency for use in an input scanner comprises first inserting a transparency into an envelope. Within the envelope a film of liquid of substantially the same refractive index as the transparency is spread over the transparency. The liquid may be provided in a rupturable pod within the envelope. The transparency holder is sealed by either an integral seal or adhesive tape. The transparency holder protects the transparency from dust and scratches and helps to prevent Newtons rings occuring in the image produced when mounted in the scanner.

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patent: 4480910 (1984-11-01), Takanashi et al.
patent: 4509852 (1985-04-01), Tabarelli et al.
patent: 4528570 (1985-07-01), Geyer et al.
patent: 4763169 (1988-08-01), Jackson

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