Photographic transparency for producing a lenticular array

Gas separation: apparatus – Solid sorbent apparatus – With programmed – cyclic – or time responsive control means

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96 81, 96 45, 96 27E, 96 35, 96 41, 96 44, G03F 500, G03C 500

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040281094

ABSTRACT:
An apparatus and method are disclosed by which a processed photosensitive material can be provided with a lenticular surface with each lenticule having a predetermined profile. The lenticules are arranged relative to one another with such a degree of accuracy that any speckle and scintillation that might be produced when the processed material is utilized as an element of a transmission or reflection type screen is reduced to a minimum, if not completely eliminated. Once the exposure factors for the emulsion have been established, the exposure profile can be determined for a particular lenticule profile to be imaged onto the photographic material or emulsion. The exposure profile can be utilized to provide a transparency master target pattern which can be of a relatively large size. After the master target has been exposed and developed or processed, the transparency is then placed in an optical system which minifies and projects the pattern on the target onto a photosensitive material in a predetermined and overlapping relation. After processing of the material, the lenticules are evident on the material which can then be used as an element of a rear or front projection type screen.

REFERENCES:
patent: 2794739 (1957-06-01), Gretener
patent: 3425770 (1969-02-01), Mueller et al.
patent: 3582329 (1971-06-01), Ivanou et al.
patent: 3592529 (1971-07-01), Juhlin et al.
patent: 3775110 (1973-11-01), Bestenreiner et al.
patent: 3992206 (1976-11-01), Lamberts

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