Agfa-gevaert Ag

Peter Nassl

Walter Rauffer

Wilfried Hofmann

Karl-Heinz Dietrich

John Krueger

Herbert Lusch

Josef Gruber

Guenther Lueder

Peter Puechler

In a microfilm reader, an objective lens tube removal or exchanging arrangement which includes a cylindrically shaped supporting casing for the objective lens tube. The objective lens tube is, for focusing purposes, slidably adjustably mounted along its optical axis in the cylindrically shaped supporting casing. The cylindrically shaped supporting casing has an opening which is sufficiently large to permit the removal or exchange of the objective lens tube therethrough in a direction substantially normal to the optical axis of the objective lens.

Objective lens exchanging arrangement in a microfilm reader

A microfilm reader for enlarged projections of any desired micropicture among a number of such pictures on a microfilm. The microfilm is interleaved between two movable plates. A slidable support for the image forming objective is pressed with a tensioned spring against the upper plate. The slidable support can be connected to a slide lever for effecting its placement in proper position. Two arms of a spring can be employed for mounting the slidable support and for tilting it around an axis essentially parallel to the cover plate.

Microfilm reader

Growing community of inventors

Gauting, Germany

Peter Nassl