Collapsible stereoscopic viewer and filmstrip holder therefor

Details Collapsible stereoscopic viewer and filmstrip holder therefor Collapsible stereoscopic viewer and filmstrip holder therefor

1980-07-24

1982-11-02

Corbin, John K.

Optics: motion pictures

Removable film strip magazine type

352239, G02B 2722

Patent

active

043570739

ABSTRACT:
A collapsible stereoscopic slide viewer is comprised of top, bottom and side walls, a rear wall with viewing apertures therein, a front wall having a pair of light-admitting apertures therein and a lateral filmstrip-receiving channel formed outwardly proximate thereto, the side, rear and front walls being formed from a continuous lateral array; the viewer having offset viewing and light-admitting apertures permitting alternative viewing of two lateral series of stereographic slides disposed on a single filmstrip. A filmstrip holder for retaining laterally disposed stereographic images for use with the viewer is also disclosed. Blanks suitable for assembling the viewer and filmstrip holder are similarly described.

REFERENCES:
patent: 2789460 (1957-04-01), Kaufman
patent: 2834136 (1958-05-01), Kiehl et al.
patent: 2934999 (1960-05-01), Baumel
patent: 3389485 (1968-06-01), Roubal
patent: 3582182 (1971-06-01), Martin
patent: 4152048 (1979-05-01), Jenner
patent: 4242818 (1981-01-01), Carver

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