Front projection photographic apparatus

Details Front projection photographic apparatus Front projection photographic apparatus

1980-10-23

1982-09-21

Griffin, Donald A.

Photocopying

Contact printing

Light boxes

354295, 355 39, G03B 3500, G03B 1100, G03B 2732

Patent

active

043504191

ABSTRACT:
A front projection apparatus has a tubular adaptor (22) which can be connected to a camera lens system housing (25) at one end and received at the other in an aperture (19) in a wall (20) of the apparatus, in a position such that the lens system views an image projected by the apparatus along the projection axis (12). A flange (26) on the adaptor defines the position of the lens system along the projection axis and the adaptor can be clamped in place by this flange. The camera body (29) is slidable axially of the lens system on a vertically adjustable support (14), so the camera can be focussed without changing the positions of the lens system on the projection axis.

REFERENCES:
patent: 1642278 (1927-09-01), Vanderlipp
patent: 1885555 (1932-11-01), Schwartz
patent: 2459418 (1949-01-01), Ellis
patent: 2516582 (1950-07-01), McCullough
patent: 2602369 (1952-07-01), Tuttle
patent: 2626537 (1953-01-01), Flank
patent: 2732776 (1956-01-01), Meixner
patent: 4018519 (1977-04-01), Clapp
patent: 4137540 (1979-01-01), Curtis

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