John Logie Baird

John Logie Baird

Baird in 1917
Born (1888-08-14)14 August 1888
Helensburgh, Dunbartonshire, Scotland
Died 14 June 1946(1946-06-14) (aged 57)
Bexhill, Sussex, England
Resting place Baird family grave in Helensburgh Cemetery
Residence Scotland and England
Nationality British
Education Larchfield Academy, Helensburgh
Alma mater Royal Technical College (now University of Strathclyde), Glasgow
Occupation Inventor
businessman
Organization Consulting Technical Adviser, Cable & Wireless Ltd (1941–)
director, John Logie Baird Ltd
director, Capital and Provincial Cinemas Ltd
Known for One of the inventors of television, including the first colour television.
Spouse(s) Margaret Albu (m. 1931)
Children Diana Baird and Malcolm Baird
Parent(s) Rev John Baird, Minister, West Kirk, Helensburgh
Jessie Morrison Inglis
Notes
Member of the Physical Society (1927)
Member of the Television Society (1927)
Honorary Fellow of the Royal Society of Edinburgh (1937)

John Logie Baird FRSE (/ˈloʊɡi bɛrd/;[1] 14 August 1888 – 14 June 1946) was a Scottish engineer, innovator, one of the inventors of the mechanical television, demonstrating the first working television system on 26 January 1926, and inventor of both the first publicly demonstrated colour television system, and the first purely electronic colour television picture tube.[2][3][4][5]

In 1928 the Baird Television Development Company achieved the first transatlantic television transmission.[4] Baird's early technological successes and his role in the practical introduction of broadcast television for home entertainment have earned him a prominent place in television's history.

Baird was ranked number 44 in the BBC's list of the 100 Greatest Britons following a UK-wide vote in 2002.[6] In 2006, Baird was named as one of the 10 greatest Scottish scientists in history, having been listed in the National Library of Scotland's 'Scottish Science Hall of Fame'.[7] In 2015 he was inducted into the Scottish Engineering Hall of Fame.[8]

Early years

Baird was born on 14 August 1888 in Helensburgh, Dunbartonshire, and was the youngest of four children of the Reverend John Baird, the Church of Scotland's minister for the local St Bride's Church and Jessie Morrison Inglis, the orphaned niece of a wealthy family of shipbuilders from Glasgow.[9][10]

He was educated at Larchfield Academy (now part of Lomond School) in Helensburgh; the Glasgow and West of Scotland Technical College; and the University of Glasgow. While at college Baird undertook a series of engineering apprentice jobs as part of his course. The conditions in industrial Glasgow at the time helped form his socialist convictions but also contributed to his ill health. His degree course was interrupted by the First World War and he never returned to graduate. At the beginning of 1915 he volunteered for service in the British Army but was classified as unfit for active duty. Unable to go to the Front, he took a job with the Clyde Valley Electrical Power Company which was engaged in munitions work.[11]

Television experiments

The first known photograph of a moving image produced by Baird's "televisor", circa 1926 (The subject is Baird's business partner Oliver Hutchinson.)
John Logie Baird with his television apparatus, circa 1925
An early experimental television broadcast

The development of television was the result of work by many inventors. Among them, Baird was a prominent pioneer and made major advances in the field. Many historians credit Baird with being the first to produce a live, moving, greyscale television image from reflected light. Baird achieved this, where other inventors had failed, by obtaining a better photoelectric cell and improving the signal conditioning from the photocell and the video amplifier.

Between 1902 and 1907, Arthur Korn invented and built the first successful signal-conditioning circuits for image transmission. The circuits overcame the image-destroying lag effect that is part of selenium photocells. Korn's compensation circuit allowed him to send still fax pictures by telephone or wireless between countries and even over oceans, while his circuit operated without benefit of electronic amplification.[12] Korn's success at transmitting halftone still images suggested that such compensation circuits might work in television. Baird was the direct beneficiary of Korn's research and success.[13][14]

In his first attempts to develop a working television system, Baird experimented with the Nipkow disk. Paul Gottlieb Nipkow had invented this scanning disc system in 1884.[15] Television historian Albert Abramson calls Nipkow's patent "the master television patent".[16] Nipkow's work is important because Baird and many others chose to develop it into a broadcast medium.

In early 1923, and in poor health, Baird moved to 21 Linton Crescent, Hastings, on the south coast of England. He later rented a workshop in the Queen's Arcade in the town. Baird built what was to become the world's first working television set using items including an old hatbox and a pair of scissors, some darning needles, a few bicycle light lenses, a used tea chest, and sealing wax and glue that he purchased.[17] In February 1924, he demonstrated to the Radio Times that a semi-mechanical analogue television system was possible by transmitting moving silhouette images.[18] In July of the same year, he received a 1000-volt electric shock, but survived with only a burnt hand. His landlord, Mr Tree, asked him to quit his workshop and he moved to upstairs rooms in Soho, London, where he made a technical breakthrough. Baird gave the first public demonstration of moving silhouette images by television at Selfridges department store in London in a three-week series of demonstrations beginning on 25 March 1925.

Baird in 1926 with his televisor equipment and dummies "James" and "Stooky Bill".

In his laboratory on 2 October 1925, Baird successfully transmitted the first television picture with a greyscale image: the head of a ventriloquist's dummy nicknamed "Stooky Bill" in a 30-line vertically scanned image, at five pictures per second.[19] Baird went downstairs and fetched an office worker, 20-year-old William Edward Taynton, to see what a human face would look like, and Taynton became the first person to be televised in a full tonal range.[20] Looking for publicity, Baird visited the Daily Express newspaper to promote his invention. The news editor was terrified and he was quoted by one of his staff as saying: "For God's sake, go down to reception and get rid of a lunatic who's down there. He says he's got a machine for seeing by wireless! Watch him — he may have a razor on him."[21]

First public demonstrations

On 26 January 1926, Baird repeated the transmission for members of the Royal Institution and a reporter from The Times in his laboratory at 22 Frith Street in the Soho district of London.[4][22] By this time, he had improved the scan rate to 12.5 pictures per second. It was the first demonstration of a television system that could broadcast live moving images with tone graduation.[2]

He demonstrated the world's first colour transmission on 3 July 1928, using scanning discs at the transmitting and receiving ends with three spirals of apertures, each spiral with a filter of a different primary colour; and three light sources at the receiving end, with a commutator to alternate their illumination.[23] That same year he also demonstrated stereoscopic television.[24]

In 1932, Baird was the first person in the United Kingdom to demonstrate ultra-short wave transmissions. Contrary to some reports, these transmissions were far from the first VHF telecasts. In 1931, the US Federal Radio Commission allocated VHF television bands. From 1931 to 1933, station W9XD in Milwaukee, Wisconsin, transmitted some of the first VHF television signals. The station's 45-line, triply interlaced pictures used the U. A. Sanabria television technology.[25]

Broadcasting

In 1927, Baird transmitted a long-distance television signal over 438 miles (705 km) of telephone line between London and Glasgow; Baird transmitted the world's first long-distance television pictures to the Central Hotel at Glasgow Central Station.[26] This transmission was Baird's response to a 225-mile, long-distance telecast between stations of AT&T Bell Labs. The Bell stations were in New York and Washington, DC. The earlier telecast took place in April 1927, a month before Baird's demonstration.[16]

Baird then set up the Baird Television Development Company Ltd, which in 1928 made the first transatlantic television transmission, from London to Hartsdale, New York, and the first television programme for the BBC.[4] In November 1929, Baird and Bernard Natan established France's first television company, Télévision-Baird-Natan. He televised the first live transmission of the Epsom Derby in 1931. He demonstrated a theatre television system, with a screen two feet by five feet (60 cm by 150 cm), in 1930 at the London Coliseum, Berlin, Paris, and Stockholm.[27] By 1939 he had improved his theatre projection system to televise a boxing match on a screen 15 ft (4.6 m) by 12 ft (3.7 m).[28]

From 1929 to 1932, the BBC transmitters were used to broadcast television programmes using the 30-line Baird system, and from 1932 to 1935, the BBC also produced the programmes in their own studio at 16 Portland Place. On 3 November 1936, from Alexandra Palace located on the high ground of the north London ridge, the BBC began alternating Baird 240-line transmissions with EMI's electronic scanning system which had recently been improved to 405 lines after a merger with Marconi. The Baird system at the time involved an intermediate film process, where footage was shot on cinefilm which was rapidly developed and scanned. The trial was due to last 6 months but the BBC ceased broadcasts with the Baird system in February 1937, due in part to a disastrous fire in the Baird facilities at Crystal Palace. It was becoming apparent to the BBC that the Baird system would ultimately fail due in large part to the lack of mobility of the Baird system's cameras, with their developer tanks, hoses, and cables.[29]

Baird's television systems were replaced by the electronic television system developed by the newly formed company EMI-Marconi under Isaac Shoenberg, which had access to patents developed by Vladimir Zworykin and RCA. Similarly, Philo T. Farnsworth's electronic "Image Dissector" camera was available to Baird's company via a patent-sharing agreement. However, the Image Dissector camera was found to be lacking in light sensitivity, requiring excessive levels of illumination. Baird used the Farnsworth tubes instead to scan cinefilm, in which capacity they proved serviceable though prone to drop-outs and other problems. Farnsworth himself came to London to Baird's Crystal Palace laboratories in 1936, but was unable to fully solve the problem; the fire that burned Crystal Palace to the ground later that year further hampered the Baird company's ability to compete.[30]

Baird made many contributions to the field of electronic television after mechanical systems had taken a back seat. In 1939, he showed colour television using a cathode ray tube in front of which revolved a disc fitted with colour filters, a method taken up by CBS and RCA in the United States. In 1941, he patented and demonstrated a system of three-dimensional television at a definition of 500 lines. On 16 August 1944, he gave the world's first demonstration of a fully electronic colour television display. His 600-line colour system used triple interlacing, using six scans to build each picture.[5][31][5] In 1943, the Hankey Committee was appointed to oversee the resumption of television broadcasts after the war. Baird persuaded them to make plans to adopt his proposed 1000-line Telechrome electronic colour system as the new post-war broadcast standard. The picture resolution on this system would have been comparable to today's HDTV (High Definition Television). The Hankey Committee's plan lost all momentum partly due to the challenges of postwar reconstruction. The monochrome 405-line standard remained in place until 1985 in some areas, and it was three decades until the introduction of the 625-line system in 1964 and (PAL) colour in 1967. A demonstration of large screen three-dimensional television by the BBC was reported in March 2008, over 60 years after Baird's demonstration.

Legacy

Undated advertisement

Baird's mechanical scanning did not cease with the development of electronic systems. Improved versions of mechanical scanning survive today in long wavelength infrared cameras used for military purposes, principally to provide night vision capability for fighter pilots. The picture from the camera is typically superimposed on the pilot's forward view by displaying it in the head up display. They have also found a use in airborne police helicopters providing not only night vision but the ability to detect heat sources (such as people) during the day. These systems do not use the disc of lenses that Baird used, but instead use discs of prisms to scan the image onto a cooled infrared detector. Electronic pick up tubes are unsuitable for this application because there is no suitable target material with a sensitivity to long wavelength infrared light. Further, the glass bulb is opaque to such wavelengths.

Other inventions

Some of Baird's early inventions were not fully successful. In his twenties he tried to create diamonds by heating graphite and shorted out Glasgow's electricity supply. Later Baird invented a glass razor which was rust-resistant, but shattered. Inspired by pneumatic tyres he attempted to make pneumatic shoes, but his prototype contained semi-inflated balloons which burst. He also invented a thermal undersock (the Baird undersock), which was moderately successful. Baird suffered from cold feet, and after a number of trials, he found that an extra layer of cotton inside the sock provided warmth.[17]

Baird's numerous other developments demonstrated his particular talent at invention. He was a visionary and began to dabble with electricity. In 1928, he developed an early video recording device, which he dubbed Phonovision. The system consisted of a large Nipkow disk attached by a mechanical linkage to a conventional 78-rpm record-cutting lathe. The result was a disc that could record and play back a 30-line video signal. Technical difficulties with the system prevented its further development, but some of the original phonodiscs have been preserved, and have since been restored by Donald McLean, a Scottish electrical engineer.[32]

Baird's other developments were in fibre-optics, radio direction finding, infrared night viewing and radar. There is discussion about his exact contribution to the development of radar, for his wartime defence projects have never been officially acknowledged by the UK government. According to Malcolm Baird, his son, what is known is that in 1926 Baird filed a patent for a device that formed images from reflected radio waves, a device remarkably similar to radar, and that he was in correspondence with the British government at the time. The radar contribution is in dispute. According to some experts, Baird's "noctovision" is not radar. Unlike radar (except Doppler radar), Noctovision is incapable of determining the distance to the scanned subject. Noctovision also cannot determine the coordinates of the subject in three-dimensional space.[33]

Later years

From December 1944, Logie Baird lived at 1 Station Road, Bexhill-on-Sea, East Sussex, immediately north of the station and subsequently died there on 14 June 1946 after suffering a stroke in February.[34] The house was demolished in 2007 and the site is now apartments named Baird Court.[34] Logie Baird is buried with his mother, father and wife in Helensburgh Cemetery.[35]

Honours and portrayals

Australian television's Logie Awards were named in honour of John Logie Baird's contribution to the invention of the television.

He became the only deceased subject of This Is Your Life when he was honoured by Eamonn Andrews at the BBC Television Theatre in 1957.[36] He was played by Michael Gwynn (and also by Andrew Irvine, who played him as a boy) in the 1957 TV film A Voice in Vision[37] and by Robert McIntosh in the 1986 TV drama The Fools on the Hill.[38]

In 2014, the Society of Motion Picture and Television Engineers (SMPTE) inducted Logie Baird into The Honor Roll which "posthumously recognizes individuals who were not awarded Honorary Membership during their lifetimes but whose contributions would have been sufficient to warrant such an honor."[39]

On 26 January 2016, the search engine Google released a Google Doodle to mark the 90th anniversary of Logie Baird's first public demonstration of live television.[2]

See also

References and notes

This article incorporates material from the Citizendium article "John Logie Baird", which is licensed under the Creative Commons Attribution-ShareAlike 3.0 Unported License but not under the GFDL.
  1. ↑ "Baird": Collins English Dictionary – Complete & Unabridged 2012 Digital Edition.
  2. 1 2 3 "Who invented the television? How people reacted to John Logie Baird's creation 90 years ago". The Telegraph. 26 January 2016.
  3. ↑ "Who invented the mechanical television? (John Logie Baird)". Google. 26 January 2016.
  4. 1 2 3 4 "Historic Figures: John Logie Baird (1888 - 1946)". BBC. Retrieved 28 April 2015.
  5. 1 2 3 Albert Abramson, The History of Television, 1942 to 2000, McFarland & Company, 2003, pp. 13–14. ISBN 0-7864-1220-8
  6. ↑ "100 great British heroes". BBC News. 21 August 2002. Retrieved 8 November 2010.
  7. ↑ "John Logie Baird was voted the second most popular Scottish scientist". Scottish Science Hall of Fame. National Library of Scotland. 2009. Retrieved 6 January 2010.
  8. ↑ "2015 Inductee: John Logie Baird". Scottish Engineering Hall of Fame. Retrieved 4 October 2015
  9. ↑ Burns, John Logie Baird, television pioneer p.1
  10. ↑ "BBC - History - John Logie Baird".
  11. ↑ T. McArthur and P. Waddell, Vision Warrior, Orkney Press, 1990
  12. ↑ T. Thorne Baker, Wireless Pictures and Television. London: Constable & Company, 1926., pp. 28, 29, 81.
  13. ↑ Terry and Elizabeth Korn. Trailblazer to Television: The Story of Arthur Korn. New York: Charles Scribner's Sons, 1950. See preface by Austin J. Cooley, Chief Engineer, Times Facsimile Corp.
  14. ↑ Russell W. Burns, John Logie Baird: TV Pioneer. N.c.: Institution of Engineering and Technology, 2001, pp. 33–34.
  15. ↑ Albert Abramson, The History of Television, 1880 to 1941, McFarland, 1987, pp. 13–15.
  16. 1 2 pp. 99–101.
  17. 1 2 American Media History, Fellow, p. 278
  18. ↑ Burns, Russell (2000). John Logie Baird, television pioneer. London: Institution of Electrical Engineers. p. 50. ISBN 9780852967973.
  19. ↑ R. W. Burns, Television: An International History of the Formative Years, p. 264.
  20. ↑ Donald F. McLean, Restoring Baird's Image, p. 37.
  21. ↑ "Pandora Archive". Pandora.nla.gov.au. 23 August 2006. Retrieved 2 October 2013.
  22. ↑ Kamm and Baird, John Logie Baird: A Life, p. 69
  23. ↑ "Patent US1925554 - Television apparatus and the like".
  24. ↑ R. F. Tiltman, How "Stereoscopic" Television is Shown, Radio News, Nov. 1928.
  25. ↑ Joseph H. Udelson, The Great Television Race: A History of the American Television Industry 1925 – 1941, pp. 42, 73.
  26. ↑ Interview with Paul Lyons, Historian and Control and Information Officer at Glasgow Central Station
  27. ↑ J.L. Baird, Television in 1932.
  28. ↑ "Baird Television Limited – Growing Demand For Home Receivers – Success of Large Screen Projections in Cinemas – etc." The Times, 3 April 1939 p23 column A.
  29. ↑ Kamm and Baird, John Logie Baird: A Life, p. 286
  30. ↑ Kamm and Baird, John Logie Baird: A Life, pp. 286–289.
  31. ↑ The World's First High Definition Colour Television System. McLean, p. 196.
  32. ↑ "The dawn of TV: Mechanical era of British television". TVdawn.com.
  33. ↑ Russell Burns, John Logie Baird (N.C.: The Institution of Engineering and Technology, 2001), 119.
  34. 1 2 "125th birthday of the inventor of television John Logie Baird". Hastings Observer. 2 September 2013. Retrieved 26 January 2016.
  35. ↑ John Logie Baird at Find a Grave
  36. ↑ "John Logie BAIRD (1888-1946)". The Big Red Book. Retrieved 27 January 2016.
  37. ↑ "A Voice in Vision (1957)". British Film Institute. Retrieved 14 September 2015.
  38. ↑ "The Fools on the Hill". Internet Movie Database. Retrieved 11 August 2015.
  39. ↑ "SMPTE® Announces 2014 Honorees and Award Winners". Society of Motion Picture & Television Engineers. Retrieved 10 November 2014.

Further reading

Books
Patents

External links

Wikimedia Commons has media related to John Logie Baird.
This article is issued from Wikipedia - version of the Thursday, February 04, 2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.