Lamp-adjusting mechanism, particularly for photographic enlargin

Details Lamp-adjusting mechanism, particularly for photographic enlargin Lamp-adjusting mechanism, particularly for photographic enlargin

1975-01-02

1977-09-27

Griffin, Donald A.

Photocopying

Projection printing and copying cameras

Illumination systems or details

362287, G03B 2754, F21V 1902

Patent

active

040508137

ABSTRACT:
A mechanism, for adjusting the position of an illuminating lamp longitudinally and angularly in planes perpendicular to the optical axis of the condenser, has a lead screw and guide rod mounted substantially parallel to each other on the housing. The lamp socket holder is longitudinally traversed by the lead screw and the guide rod is eccentrically adjusted to impart a tilting movement to the holder. Control knobs for the lead screw and tilting mechanism are disposed adjacent each other on the outside of the housing. The lamp socket may also be axially and rotatably adjusted in the holder.

REFERENCES:
patent: 1507095 (1924-09-01), Uhlemann
patent: 1729610 (1929-10-01), Coulter
patent: 1852804 (1932-04-01), Cocksedge
patent: 3510220 (1970-05-01), Bures
patent: 3700884 (1972-10-01), Fujimoto
patent: 3886350 (1975-05-01), Katsukura et al.

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