Optics: image projectors – Structurally related projector and screen
Patent
1985-10-01
1988-03-15
Frankfort, Charles
Optics: image projectors
Structurally related projector and screen
353 95, 353 75, 353 76, 353103, G03B 2300
Patent
active
047309199
ABSTRACT:
A folding slide viewer has a rear projection screen which swings into a ft position for storage. In a second, operating position, the projection screen it is provided with a lightproof bellows. The optical axis of the lens system is inclined at an angle with respect to the horizontal base of the housing. A reflector is along the optical axis of the lens system, when the screen is in its operating position, to reflect an image onto the screen. An image trap is swingable between a first position perpendicular to a longitudinal axis of the slide magazine and a second position perpendicular to the optical axis of the lens system.
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Frankfort Charles
Patent-Treuhand-Gesellschaft fur Elektrische Gluhlampen m.b.H
Scanlon Patrick R.
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