Title: Film projection system

Abstract: A film projection system comprising a film guiding path, a light source, a projection screen and a rotatable optical system. The optical system comprises a support carrying equidistant identical object lenses whose nodal points traverse a path spaced from the film guiding path a distance substantially equal to the focal distance of the object lenses. The beam or beams emanating from the object lenses are projected and brought into register, respectively, on the projection screen by means of a projection lens. Each object lens may have a given distortion for substantially eliminating any residual unintended motion of the projection of each individual point of the film on the screen.

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Inventors: Oosten, Hendrik v. (Leiden, NL)
Verbeek, Willem J. P. A. ('s-Gravenhage, NL)

Application Number: 938761
Filing Date: 1978-09-01
Publication_date: 1980-10-07
Assignee: N.V. Optische Industrie "De Oude Delft" (Delft, NL)
Primary Class(es): 352/115 352/129
Other Classes:
US Patent Ref:

1957457	May, 1934	Holman.
2410069	Oct, 1946	Holman	352/115.
3138057	Jun, 1964	Castedello et al.	352/129.

Other Refs: 97215154141241124

Dec, 1896	DE2.
Aug, 1902	DE2.
Mar, 1911	DE2

Primary Examiner: Hayes, Monroe H.
Assistant Examiner:
Attorney: O'Brien & Marks