Photographic film cassette having light trapping pile fabrics at

Details Photographic film cassette having light trapping pile fabrics at Photographic film cassette having light trapping pile fabrics at

1991-02-04

1993-04-27

Stodola, Daniel P.

Winding, tensioning, or guiding

Coil holder or support

Spool or core

G03B 104

Patent

active

052055060

ABSTRACT:
A film cassette is provided with a film passage mouth to which pile fabrics are attached for trapping light. Pile threads of the pile fabrics are inclined flexibly in the film advancement direction to reduce resistance against film advancement. The leader of the film is formed in a triangular shape such that the film leader end passes the pile fabrics while gradually increasing the contact area with the fabric, thereby reducing resistance against film advancement.

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