Card – picture – or sign exhibiting – Photographic transparency viewer – e.g. – x-ray viewer – Hand held slide viewer
Patent
1983-10-31
1985-11-05
Swiatek, Robert P.
Card, picture, or sign exhibiting
Photographic transparency viewer, e.g., x-ray viewer
Hand held slide viewer
40367, G02B 2702
Patent
active
045505152
ABSTRACT:
A portable transparency viewer including a body having a fixed imaging screen with a light source disposed therebehind within the viewer body. Also held within the viewer body is a selectively energizable power source for illuminating the imaging screen. An adjustable magnifier is pivotally attached to the viewer body overlying screen in movable and parallel spaced relation thereto. For viewing slides and filmstrips, an auxiliary removable magnifier is provided which is adapted to be releasably engaged and retained on the viewer body over the viewing screen. The auxiliary magnifier includes a slide carrier for selectively introducing slides between the lens of the auxiliary magnifier and the imaging screen of the viewer body. The auxiliary magnifier further includes an inlet and an outlet positioned on opposite sides of the housing so as to permit the passage of a filmstrip therethrough.
REFERENCES:
patent: 2983061 (1961-05-01), Maiershofer
patent: 3064376 (1962-11-01), Fuller
patent: 4094598 (1978-06-01), Hodges
patent: 4146315 (1979-03-01), Pribich
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