BILDWAND FUER PROJEKTIONSKOPIERGERAET

A projection copying apparatus for reproducing microfilmed originals on a light-tightly disposable projection screen and for producing copies of microfilmed originals comprises means for copying of dot originals operating for complete or sectional copying of the originals, and a projection screen in...

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Bibliographic Details
Main Authors SCHRECKE, HANS JOACHIM, 8011 GRASBRUNN, DE, LIERMANN, TRAUGOTT, 8025 UNTERHACHING, DE, NADLER, FRANZ, 8041 DIETERSHEIM, DE, PLASCHKE, HERBERT, (GRAD.), 8031 GERNLINDEN, DE, HACKENBERG, HUBERT., 8150 HOLZKIRCHEN, DE
Format Patent
LanguageGerman
Published 09.08.1990
Subjects
ACCESSORIES THEREFOR
APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES
APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM
CINEMATOGRAPHY
ELECTROGRAPHY
HOLOGRAPHY
PHOTOGRAPHY
PHYSICS
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Summary:A projection copying apparatus for reproducing microfilmed originals on a light-tightly disposable projection screen and for producing copies of microfilmed originals comprises means for copying of dot originals operating for complete or sectional copying of the originals, and a projection screen including a diffusing disc, an LCD dics arranged on the diffusing disc, the LCD disc being switchable between two conditions so that in one of the conditions it is transparent for observation of the originals and in the other of the conditions it is opaque for copying or searching.
Bibliography:Application Number: DE19893903101