Projected image alignment method and apparatus

Details Projected image alignment method and apparatus Projected image alignment method and apparatus

G - Physics

05

D

341/97

G05D 3/00 (2006.01) G03B 35/16 (2006.01)

Patent

CA 2018520

Projected image misalignment in a 3-D motion picture projector is corrected by shifting one of the projection lenses in accordance with a predetermined program during presentation of the motion picture. In one embodiment, manually initiated control signals for adjusting the lens shift are recorded in a memory and can be subsequently retrieved for automatically controlling lens shift. In another embodiment, lens shift is controlled by reading predetermined witness marks on the film.

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