Projection printing apparatus and method

Details Projection printing apparatus and method Projection printing apparatus and method

G - Physics

03

B

95/51

G03B 27/32 (2006.01) G03B 35/00 (2006.01)

Patent

CA 1119867

ABSTRACT OF THE DISCLOSURE An apparatus and method of making a parallax stereogram, i.e., free vision stereogram, and particu- larly for the accurate registration of a plurality of film images in order to ensure stereographic reproduc- tion. Each film frame having the image thereon in- cludes marks which are used in a projection printing apparatus to register the image in a desired position. The registration is accomplished by mechanical align- ment according to the mark or by optically sensing the mark. A comparator-servo can adjust the film frame to the desired position. After registration each film frame is exposed onto a photosensitive material using a movable line grid. A lenticular screen is superimposed over the developed picture to form the stereoscopic photograph.

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