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Television - PowerPoint PPT Presentation


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Television Julius Plücker - 1859 Sir William Crooks Crooks tube Beam pulled up by magnet Karl Braun - 1897 Braun’s cathode ray tube G. R. Carey – 1875 Shelford Bidwell – 1881 Maurice leBlanc Paul Nipkow – 1884 Mechanical TV - 1884 Boris Rosing

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PowerPoint Slideshow about 'Television' - LionelDale


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Presentation Transcript
boris rosing
Boris Rosing
  • First to use a cathode ray tube as a receiver for a mechanically scanned image
archibald campbell swinton
Archibald Campbell-Swinton
  • First to suggest using cathode ray tubes for both sending and receiving images
slide18
1911 – A. Sinding-Larsen suggested using radio instead of wires as a carrier of picture signals
  • We now have all the concepts for what we think of as “modern television”
  • And then World War I happened
slide26

Farnsworth won the lawsuit against Zworykin and RCA over who invented the kinescope and the iconoscope. Thus, he’s known as “the father of television.”

slide27
RCA now had to pay Farnsworth royalties to license his patents
  • Sarnoff said of RCA that it was determined “to collect patent royalties, not pay them.”
slide28
Date of demonstration

1930

1931

1933

1936

1939

1941

No. of picture lines

60 lines

120 lines

240 lines

343 lines

441 lines

525 lines

slide31
Television started broadcasting in 1939
  • but growth and development was stalled by
  • World War II
post war
Post-war
  • RCA 630 set
  • RCA gave the plans to other companies
  • Set sales skyrocketed:
    • In 1946 – 6,000
    • In 1952 – 21,782,000
slide37

TV essentially stole radio’s programming –dramas, comedies, variety shows, talk shows, game shows, sports, news.All programming was done live.