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Title: Mirror follow-up device for a film projector

Abstract: A mirror-follow up device for a projector intended to project a continuously moving film on an image plane comprises means for pivoting the mirrors to provide optical compensation for the movement of the film, including a plate and a mirror wheel with coupling means for transmitting a rotating motion from the former to the latter, and guide means for pivoting a guide shaft associated with each mirror about an axis substantially perpendicular to a plane defined by the path of rays emanating from the projector.


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Inventors: Bessire, Jean-Jacques (Bern, CH)
Loardon, Francis (Bern, CH)

Application Number: 508616
Filing Date: 1974-09-23
Publication_date: 1976-09-21
Assignee: Eresa S.A. (Bern, CH)
Primary Class(es): 352/112 352/107
Other Classes:
US Patent Ref:
1584317May, 1926Mechau352/107.

Other Refs: 860,115
Jan, 1941FR

Primary Examiner: Hix, L. T.
Assistant Examiner: Mathews, Alan
Attorney: Oblon, Fisher, Spivak, McClelland & Maier