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GB289416A - Improvements in television methods and apparatus - Google Patents

Improvements in television methods and apparatus

Info

Publication number
GB289416A
GB289416A GB12303/28A GB1230328A GB289416A GB 289416 A GB289416 A GB 289416A GB 12303/28 A GB12303/28 A GB 12303/28A GB 1230328 A GB1230328 A GB 1230328A GB 289416 A GB289416 A GB 289416A
Authority
GB
United Kingdom
Prior art keywords
frequency
series
electric
piezo
crystal
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
GB12303/28A
Other languages
English (en)
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB289416A publication Critical patent/GB289416A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/07—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on electro-optical liquids exhibiting Kerr effect
    • 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
    • H04N3/10—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Mechanical Light Control Or Optical Switches (AREA)
  • Spectrometry And Color Measurement (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
GB12303/28A 1927-04-26 1928-04-26 Improvements in television methods and apparatus Expired GB289416A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR538297X 1927-04-26

Publications (1)

Publication Number Publication Date
GB289416A true GB289416A (en) 1929-07-04

Family

ID=8928099

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12303/28A Expired GB289416A (en) 1927-04-26 1928-04-26 Improvements in television methods and apparatus

Country Status (5)

Country Link
US (1) US2247051A (fr)
BE (1) BE350608A (fr)
DE (2) DE538297C (fr)
FR (1) FR644240A (fr)
GB (1) GB289416A (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE865004C (de) * 1937-08-25 1953-01-29 Interessengemeinschaft Fuer Ru Anordnung zur Wiedergabe eines Fernsehbildes, dessen einzelne Elemente je auf verschiedenen Traegerwellen uebertragen werden
DE877621C (de) * 1938-10-20 1953-05-26 Interessengemeinschaft Fuer Ru Verfahren zur UEbertragung bewegter Bilder
US2591701A (en) * 1947-10-15 1952-04-08 Brush Dev Co Electrical light-transmission controlling arrangement
US2766659A (en) * 1950-12-11 1956-10-16 Clevite Corp Device for controlling light intensity
US3235799A (en) * 1954-12-27 1966-02-15 Hurvitz Hyman Electroluminescent frequency sensitive visual indicator
US3145355A (en) * 1961-09-20 1964-08-18 Lab For Electronics Inc Variable ultrasonic delay line

Also Published As

Publication number Publication date
BE350608A (fr)
US2247051A (en) 1941-06-24
DE538297C (de) 1931-11-12
FR644240A (fr) 1928-10-04
DE599442C (de) 1934-07-02

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