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Farnsworth also developed the "image oscillite", a cathode ray tube that displayed the images captured by the image dissector. [ 13 ] Farnsworth called his device an image dissector because it converted individual elements of the image into electricity one at a time.
American television pioneer Philo T. Farnsworth invented the first functional image dissector in 1927, submitting a patent application on January 7, 1927. [9] [10] On September 7 of that year, the image dissector successfully transmitted its first image, a simple straight line, at Farnsworth's laboratory at 202 Green Street in San Francisco.
September 7 – On September 7, 1927, Philo Farnsworth's image dissector camera tube transmitted its first image, a simple straight line, at his laboratory at 202 Green Street in San Francisco. [6] [7] Specific date unknown – In 1927, the American physicist Frank Gray proposed an early form of the flying-spot scanner for use in early TV ...
April - In April 1933, the American inventor Philo Farnsworth submitted a patent application entitled Image Dissector, but which actually detailed a CRT-type camera tube. [2] This is among the first patents to propose the use of a "low-velocity" scanning beam and RCA had to buy it in order to sell image orthicon tubes to the general public. [3]
Although mechanical television, using a rotating disk, had been created earlier by John Logie Baird, the hardware limited the picture to 10 frames per second and a 30-line image. Farnsworth's system used his invention of an image dissector, a scanning electronic tube, to convert an image into electromagnetic waves that were then transmitted ...
Month Day Event January: 07: Philo Farnsworth applies for an image dissector tube patent, which used caesium to produce images electronically. [1] [2]April: 07: Bell Telephone Company transmits a speech by U.S. Secretary of Commerce Herbert Hoover 320 kilometers over telephone lines, which becomes the first successful long distance demonstration of television.
It transmits 48-line images. September 1: Philo Farnsworth demonstrates his image dissector camera and "oscillite" tube receiver for the press, with the transmission of motion picture clips, described by a reporter as "a queer looking little image in bluish light now, one that frequently smudges and blurs."
September 3 - The American inventor Philo Farnsworth held a demonstration of his image dissector camera tube for the press. This is widely regarded as the first electronic television demonstration. This is widely regarded as the first electronic television demonstration.