Where does this come from, and can I check it?

Vladimir Zworykin's tube stored a light image as electric charge. The figure is taken from Smithsonian Institution, which is linked in full on this page. Every fact on Mondo Knows names its source rather than repeating an unsourced claim.

Is this really a movies & tv fact?

Yes. It sits on the Movies & TV shelf, one of 2,600 sourced facts grouped into space, animals, the human body, history, science and more. Category pages collect every fact in the same field.

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The links under the fact point to a quiz, game, puzzle or calculator on the same subject, and the shelf below shows related facts. The wording here is original, and quoted phrases are marked as quotations.

Mondo Knows Facts

The iconoscope was the first practical TV camera tube

Vladimir Zworykin's tube stored a light image as electric charge Vladimir Zworykin, working for RCA, patented the iconoscope in the 1920s, a camera tube that used a photo-sensitive plate to build up and read out a charge image. It made all-electronic television practical and replaced mechanical scanning. RCA demonstrated an electronic system at the 1939 World's Fair. It sits in Mondo's movies & tv collection, one of 200 facts that each trace back to the reference below.

Where this comes from

Smithsonian Institution

Facts that can change over time are reviewed and updated. If something here looks wrong, Mondo would rather know than be confidently incorrect.

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Technology trivia Movies & Television trivia

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An animation camera looks down at a tableCels stack on metal pegs under a lens that can move a hair at a time Motion control rigs repeat a move exactlyA computer records the camera path so separate passes line up frame for frame Film stock is rated by speed and grainA fast stock needs less light but shows more grain than a slow one Super 35 crops the picture for widescreenThe negative is exposed full height and masked to a wide shape later The focus puller keeps the shot sharpThey turn a geared wheel to track an actor moving toward or away from the lens The dolly grip drives the camera platformThey push and steer a wheeled rig by hand so the move stays smooth

Tags: television, cameras, rca

The iconoscope was the first practical TV camera tube: the short answers

Where does this come from, and can I check it?: Vladimir Zworykin's tube stored a light image as electric charge. The figure is taken from Smithsonian Institution, which is linked in full on this page. Every fact on Mondo Knows names its source rather than repeating an unsourced claim.
Is this really a movies & tv fact?: Yes. It sits on the Movies & TV shelf, one of 2,600 sourced facts grouped into space, animals, the human body, history, science and more. Category pages collect every fact in the same field.
What else can I read about it?: The links under the fact point to a quiz, game, puzzle or calculator on the same subject, and the shelf below shows related facts. The wording here is original, and quoted phrases are marked as quotations.