Photography – Plural image recording – Simultaneous recording of plural distinct subjects
Patent
1993-03-08
1999-04-27
Gray, David M.
Photography
Plural image recording
Simultaneous recording of plural distinct subjects
396351, 396544, G03B 1724
Patent
active
058972315
ABSTRACT:
An attachment to a camera lens for creating a single slide transparency or photograph from two slide transparencies such that a before-and-after or combination picture can be formed on a single photograph or transparency comprising an enclosure formed from a plurality of opaque sides and one translucent side. An aperture is formed through one of the opaque sides and has a collar for connecting the slide duplicator to the camera lens. A slot located adjacent the single translucent side is used for engaging the slide transparencies that are to be photographed. Mirrors within the duplicator are arranged for reflecting and directing images formed from light rays passing through the translucent side and through the slides to the camera lens so that the camera can photograph the dual images onto a single transparency or photograph. First surface mirrors are used in lieu of regular mirrors for clearly and distinctly reflecting and directing the images.
REFERENCES:
patent: 2413996 (1947-01-01), Ramsdell
patent: 2736250 (1956-02-01), Papritz
patent: 3674339 (1972-07-01), Sayanagi
patent: 3689148 (1972-09-01), Black
patent: 3815970 (1974-06-01), Murphy
patent: 4026651 (1977-05-01), Vitou
patent: 4239376 (1980-12-01), Wyller
patent: 5073789 (1991-12-01), Mumpower
Gray David M.
Lehrer Norman E.
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