Photographic optical bench

Details Photographic optical bench Photographic optical bench

1987-07-29

1988-08-09

Hayes, Monroe H.

Photocopying

Projection printing and copying cameras

With temperature or foreign particle control

355 52, G03B 2752

Patent

active

047631694

ABSTRACT:
A photographic optical bench includes a pulsed source of illumination (1) and an aspheric condenser (2). Color filters (21) and corresponding apertures (22) are positioned between the pulsed source (1) and the condenser (2). The apertures (22) have different spacings so that when a particular aperture (22) is in the optical path it forms an apparent object for light of a particular color such that the light passes through a focal point (25) common to all colors. A tank (3) located between the condenser (2) and the focal point (25) holds a transparent photographic medium and a refractive index matching liquid. In use an image of the transparent photographic medium is formed on a second photographic medium in a camera (5) having an imaging lens (6) at the common focal point (25).

REFERENCES:
patent: 3273451 (1966-09-01), Wilson
patent: 3614223 (1971-10-01), Ott
patent: 3893763 (1975-07-01), Ott

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