GB445938A - Improvements in or relating to television and like scanning systems - Google Patents

Improvements in or relating to television and like scanning systems

Info

Publication number
GB445938A
GB445938A GB3004834A GB3004834A GB445938A GB 445938 A GB445938 A GB 445938A GB 3004834 A GB3004834 A GB 3004834A GB 3004834 A GB3004834 A GB 3004834A GB 445938 A GB445938 A GB 445938A
Authority
GB
United Kingdom
Prior art keywords
lenses
lens
television
relating
crossed
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB3004834A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Marconis Wireless Telegraph Co Ltd
BAE Systems Electronics Ltd
Original Assignee
Marconis Wireless Telegraph Co Ltd
Marconi Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Marconis Wireless Telegraph Co Ltd, Marconi Co Ltd filed Critical Marconis Wireless Telegraph Co Ltd
Priority to GB3004834A priority Critical patent/GB445938A/en
Publication of GB445938A publication Critical patent/GB445938A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N3/00—Scanning details of television systems; Combination thereof with generation of supply voltages
    • H04N3/02—Scanning details of television systems; Combination thereof with generation of supply voltages by optical-mechanical means only
    • H04N3/04—Scanning details of television systems; Combination thereof with generation of supply voltages by optical-mechanical means only having a moving aperture also apertures covered by lenses

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Aerials With Secondary Devices (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Tires In General (AREA)

Abstract

445,938. Television. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Electra House, Victoria Embankment, and DOWSETT, H. M., 47, Drayton Gardens, Winchmore Hill, both in London, and WALKER, L. E. Q., Devon House, Townsend Drive, St. Albans, Hertfordshire. Oct. 19, 1934, No. 30048. [Class 40 (iii)] The lenses 2 of a lens drum 1 are cylindrical lenses, preferably set with their axes parallel to the drum axis. The scanning beam may be focussed by a further cylindrical lens crossed with respect to the lenses 2; alternatively, each lens 2 may be associated with a crossed cylindrical lens which moves with it.
GB3004834A 1934-10-19 1934-10-19 Improvements in or relating to television and like scanning systems Expired GB445938A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3004834A GB445938A (en) 1934-10-19 1934-10-19 Improvements in or relating to television and like scanning systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3004834A GB445938A (en) 1934-10-19 1934-10-19 Improvements in or relating to television and like scanning systems

Publications (1)

Publication Number Publication Date
GB445938A true GB445938A (en) 1936-04-20

Family

ID=10301406

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3004834A Expired GB445938A (en) 1934-10-19 1934-10-19 Improvements in or relating to television and like scanning systems

Country Status (1)

Country Link
GB (1) GB445938A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2978948A (en) * 1956-07-25 1961-04-11 Mullard Radio Valve Co Ltd Optical scanning device
GB2324168A (en) * 1997-04-11 1998-10-14 Geoffrey Owen Optical deflector and beam splitter
WO2002044789A1 (en) * 2000-11-29 2002-06-06 Geoffrey Donald Owen Refractive optical deflector

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2978948A (en) * 1956-07-25 1961-04-11 Mullard Radio Valve Co Ltd Optical scanning device
GB2324168A (en) * 1997-04-11 1998-10-14 Geoffrey Owen Optical deflector and beam splitter
WO2002044789A1 (en) * 2000-11-29 2002-06-06 Geoffrey Donald Owen Refractive optical deflector
US6873446B2 (en) 2000-11-29 2005-03-29 Geoffrey Donald Owen Refractive optical deflector

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