A Portable Non-Intermittent Ciné Projector

A portable projector made by the Établissement Gaumont Franco-Film Aubert is described. The projector is of very small weight and is arranged for carrying in a case. The film moves with a constant motion past the axis of the light source and the projection lens, the image being maintained stationary upon the screen by a combination of the movement with an optical “compensator.” It is claimed that due to these features, wearing of the film has been very much reduced and the motion is extremely silent in operation. The article describes briefly the optical principle of the motion, how the principle is applied, and the construction and assembly of the apparatus.

Print ISSN
Published
1932-01
Content type
Original Research
DOI
10.5594/J10184