Flying Spot Scanner

Flying-spot scanner - Wikipedia, the free encyclopedia
The parts of a flying spot scanner: (A) Cathode-ray tube (CRT); (B) photon beam; ... "Flying Spot Scanner TV Camera". earlytelevision.org. ...
en.wikipedia.org

DOE Document - FLYING SPOT SCANNER INVESTIGATION
The Energy Citations Database (ECD) provides access to historical and current ... It was concluded that the flying spot scanner would be ideal for many ...
www.osti.gov

ETF - Ardenne Flying Spot Scanner
In April of 1931 von Ardenne had made a flying spot film scanner. ... Here is a block diagram of a scanner with sync pulses added to the video, for ...
www.earlytelevision.org

ETF - The Museum's Flying Spot Scanner Camera
Flying Spot Scanner TV Camera. This is a cabinet used by RCA in their first tests ... construction of a working flying spot scanner camera using the RCA ...
www.earlytelevision.org

FLYING SPOT SCANNING - Patent 3675016
A flying spot scanner system is disclosed which obviates the prior art use of a ... 1. In a flying spot scanner system of the type having: Description: ...
www.freepatentsonline.com

Resolution improvement in flying spot scanner - United States Patent 5 ...
An improved flying spot scanner (48, 68) is disclosed, which is particularly ... said flying spot scanner means (23) including a modulated light source (24) ...
xrint.com

The Chip Collection - US Patent 4,040,096 - Smithsonian Institution
Patent 4,040,096 - August 2, 1977 - Flying Spot Scanner With Runout Correction - Filed October 28, 1975 ... A flying spot scanning system is provided by ...
smithsonianchips.si.edu

BEAM VELOCITY CORRECTION FOR FLYING SPOT OPTICAL SCANNERS - Patent 3627925
BEAM VELOCITY CORRECTION FOR FLYING SPOT OPTICAL SCANNERS. Document Type and Number: ... relates to flying spot optical scanners, and particularly concerns ...
www.freepatentsonline.com

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Pre-SSTV Flying Spot Scanner by W8ZCF ... A very rough but workable SSTV flying spot scanner. ... Box on top is the mechanical parts of the SSTV Flying Spot Scanner. ...
www.ultimatecharger.com

Mechanical television - Wikipedia, the free encyclopedia
2 Flying spot scanners. 3 Mechanical television with large pictures ... This year was by far not the end of flying spot scanner technology. ...
en.wikipedia.org




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: (A) Cathode-ray tube (CRT); (B) photon beam; (C) & (D) dichroic mirrors; (E), (F) & (G) red-, green- and blue-sensitive photomultipliers.

A flying-spot scanner (FSS) uses a scanning source of a spot of light, such as a high-resolution, high-light-output, low-persistence Cathode Ray Tube (CRT), to scan an image, usually from motion picture film or a slide. The output of the scanner is usually a television signal.

Basic principle In the case of the CRT-based scanner, as the electron beam is drawn across the face of the CRT, it creates a scan that has the correct number of lines and aspect ratio for the format of the signal. The image of this scan is focused with a lens onto the film frame. Its light passes through the image being scanned and is converted to a proportional electrical signal by Photomultiplier tube(s), one for each color (Red, Green, Blue) that detect the variations in intensity of the beam spot as it scans across the film, and are converted to proportional electrical signals, on for each of the color channels.

Telecines that use a monochrome CRT as the light source can be referred to as flying-spot scanners. The advantage of the FSS technique is that as colour analysis is done after scanning, simple dichroics may be used to split the light to each photomultiplier — and there are be no registration errors, as would have been introduced by early electronic cameras.

Early use Historically, flying-spot scanners were also used as primitive live-action studio cameras at the dawn of electronic television, in the 1920s.A projector equipped with a spinning perforated disc created the spot that scanned the stage. Scanning a subject this way required a completely dark stage, and was impractical for production use, but gave early researchers a way to generate live images before practical imaging pickup tubes were perfected.

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