Photocopying – Projection printing and copying cameras – Stereoscopic
Patent
1994-10-31
1997-09-30
Moses, R. L.
Photocopying
Projection printing and copying cameras
Stereoscopic
355 77, G03B 2732
Patent
active
056731000
ABSTRACT:
A method for making large format lenticular 3-D images by enlarging a smaller source image utilizes an optical enlarger that is calibrated by forming a first reference image pattern from a first piece of lenticular material having the same pitch as a second piece of lenticular material, and a second reference image comprising lines having a pitch corresponding to the spacing between the same views of the source image. The source image is derived by photographing an original scene from different views taken from spaced apart positions. The first reference image is positioned at a copy plane and the second reference image is positioned at the source plane. The relative orientation of the reference images are adjusted to provide a Moire pattern that achieves desired spacing and parallelism. With the adjustment of the enlarger optics completed, the source image is positioned at the source plane and an enlargement is made at the copy plane. The enlarged image, formed at the copy plane, will accurately align with the lenticules of the second piece of lenticular material to provide a superior large format lenticular 3-D image.
REFERENCES:
patent: 3028785 (1962-04-01), Leach
patent: 4494864 (1985-01-01), Smith et al.
patent: 5276478 (1994-01-01), Morton
patent: 5302989 (1994-04-01), Taguchi et al.
Three-Dimensional Imaging Techniques, Takanori Okoshi, New York: Academic Press, 1976, pp. 64-77 (translated from the Japanese edition published in 1972).
Eastman Kodak Company
Moses R. L.
Stewart Gordon M.
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