Photographic slide assembly and projector

Details Photographic slide assembly and projector Photographic slide assembly and projector

1984-10-15

1986-05-06

Haroian, Harry N.

Optics: image projectors

Picture carrier

353122, 353 46, 353111, G03B 2100

Patent

active

045867984

ABSTRACT:
A photographic slide assembly comprises a transparency and an activator sheet which are relatively movable. The transparency has an illusion-of-motion dot pattern thereon in an image defining area or areas and the activator sheet has an illusion-of-motion dot pattern thereon which is operationally complementary to the motion pattern of the slide transparency. The activator sheet is supported adjacent to the slide transparency so that the motion pattern of the activator sheet and the slide transparency fall within the field of focus of a slide projector lens when the slide assembly is operationally mounted within the projector.

REFERENCES:
patent: 1066765 (1913-07-01), Spiegel
patent: 2058581 (1936-10-01), Fegan
patent: 2287003 (1942-06-01), Proctor et al.
patent: 3159936 (1964-12-01), Musaphia
patent: 3235987 (1966-02-01), Yates
patent: 3827797 (1974-08-01), Eaves
patent: 4165161 (1979-08-01), Kramer

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