Camera filter holders

Details Camera filter holders Camera filter holders

1979-01-23

1985-03-12

Rubinson, Gene Z.

Photocopying

Projection printing and copying cameras

Illumination systems or details

G03B 2772

Patent

active

045041407

ABSTRACT:
Filter holders and system are referred to as Fili-holders or Fili-holder system on the title page and all hereafter, so as not to be confused with any existing filter holding methods.
A desired square filter is inserted into a Fili-holder and is placed on a copy camera lens collar as a unit. This eliminates the need and current use of a permanently mounted filter holder to the copy camera lens and the problems inherent from same.

REFERENCES:
patent: 2420379 (1947-05-01), Mills

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