Professor Karolus With His Mirror Disc
by Bettmann
Title
Professor Karolus With His Mirror Disc
Artist
Bettmann
Medium
Photograph - Photography
Description
(Original Caption) 9/17/1928-Berlin, Germany- Professor Karolus with his "mirror disc" which is used for the radio reception of pictures. This apparatus is called television in the U.S. The mirrors, which are set at certain angles to each other, project the picture to a ground glass screen which is about 20 inches square, thus retaining the picture. This machine was exhibited at the 5th Great German Radio Exhibition in Berlin.
Image provided by Getty Images.
Uploaded
May 18th, 2020
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Image ID
515408304
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