BE476946A - - Google Patents

Info

Publication number
BE476946A
BE476946A BE476946DA BE476946A BE 476946 A BE476946 A BE 476946A BE 476946D A BE476946D A BE 476946DA BE 476946 A BE476946 A BE 476946A
Authority
BE
Belgium
Application number
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.)
Publication of BE476946A publication Critical patent/BE476946A/xx

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 
    • G02F1/17—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 variable-absorption elements not provided for in groups G02F1/015 - G02F1/169
    • G02F1/172—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 variable-absorption elements not provided for in groups G02F1/015 - G02F1/169 based on a suspension of orientable dipolar particles, e.g. suspended particles displays
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
    • H01Q15/02—Refracting or diffracting devices, e.g. lens, prism
    • H01Q15/10—Refracting or diffracting devices, e.g. lens, prism comprising three-dimensional array of impedance discontinuities, e.g. holes in conductive surfaces or conductive discs forming artificial dielectric

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Aerials With Secondary Devices (AREA)
  • Waveguide Switches, Polarizers, And Phase Shifters (AREA)
BE476946D 1947-05-16 BE476946A (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US748448A US2577619A (en) 1947-05-16 1947-05-16 Metallic structure for delaying unipolarized waves

Publications (1)

Publication Number Publication Date
BE476946A true BE476946A (xx)

Family

ID=25009486

Family Applications (1)

Application Number Title Priority Date Filing Date
BE476946D BE476946A (xx) 1947-05-16

Country Status (5)

Country Link
US (1) US2577619A (xx)
BE (1) BE476946A (xx)
CH (1) CH293578A (xx)
FR (1) FR956893A (xx)
GB (1) GB664673A (xx)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2840819A (en) * 1950-06-20 1958-06-24 Westinghouse Electric Corp Reflecting surfaces
FR1036025A (fr) * 1951-04-23 1953-09-02 Csf Ligne interdigitale symétrique pour tubes à propagation d'onde
US2743440A (en) * 1951-07-19 1956-04-24 Henry J Riblet Electromagnetic horn
US2749545A (en) * 1951-08-01 1956-06-05 Itt Electromagnetic horn
US2756424A (en) * 1952-04-30 1956-07-24 Edward A Lewis Wire grid fabry-perot type interferometer
US2900706A (en) * 1952-11-21 1959-08-25 Elliott Brothers London Ltd Lens, mirror or like elements for high frequency radio aerials
US2801412A (en) * 1953-07-22 1957-07-30 Paul C Maybury Radio frequency antenna
US3017608A (en) * 1954-07-07 1962-01-16 William J Toulis Spherical acoustical lens system for focusing underwater sound
US3002123A (en) * 1957-01-11 1961-09-26 Rca Corp Traveling wave tube structure
US2978702A (en) * 1957-07-31 1961-04-04 Arf Products Antenna polarizer having two phase shifting medium
US3214760A (en) * 1960-04-28 1965-10-26 Textron Inc Directional antenna with a two dimensional lens formed of flat resonant dipoles
US3099836A (en) * 1960-05-16 1963-07-30 Lockheed Aircraft Corp V-strip antenna with artificial dielectric lens
US3461260A (en) * 1966-05-16 1969-08-12 Gen Motors Corp Microwave oven
FR2063967B1 (xx) * 1969-10-15 1973-10-19 Bony Gilbert
FR2181577B1 (xx) * 1972-04-28 1974-07-26 Bony Gilbert
US4112432A (en) * 1976-10-21 1978-09-05 Hughes Aircraft Company Square horn antenna having improved ellipticity
CA1100625A (en) * 1977-04-01 1981-05-05 Leland H. Hemming Plane wave lens
US4307404A (en) * 1978-03-20 1981-12-22 Harris Corporation Dichroic scanner for conscan antenna feed systems
CA1186406A (en) * 1982-05-21 1985-04-30 Her Majesty The Queen In Right Of Canada As Represented By The Minister Of National Defence Of Her Majesty's Canadian Government Dipole array lens antenna
DE3337049A1 (de) * 1983-10-12 1985-05-09 Gesellschaft für Schwerionenforschung mbH, 6100 Darmstadt Feststoff mit besonderen elektrischen eigenschaften und verfahren zur herstellung eines solchen feststoffes
US5414438A (en) * 1993-09-13 1995-05-09 Dooley; John A. Space lattice passive repeater
WO1996029621A1 (en) * 1995-03-17 1996-09-26 Massachusetts Institute Of Technology Metallodielectric photonic crystal
US6107901A (en) * 1998-06-16 2000-08-22 Raytheon Company Reduced-size waveguide device
US8618994B1 (en) 2010-03-23 2013-12-31 Lockheed Martin Corporation Passive electromagnetic polarization shifter with dielectric slots
US8519899B1 (en) * 2010-03-23 2013-08-27 Lockheed Martin Corporation Passive electromagnetic polarization shifter with dielectric slots
US10971823B1 (en) 2019-04-26 2021-04-06 Vasant Limited Artificial dielectric material and focusing lenses made of it

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2288735A (en) * 1929-05-18 1942-07-07 John J O'connell Method of making electrostatic shields
US2415807A (en) * 1942-01-29 1947-02-18 Sperry Gyroscope Co Inc Directive electromagnetic radiator
US2464269A (en) * 1942-06-12 1949-03-15 Raytheon Mfg Co Method and means for controlling the polarization of radiant energy

Also Published As

Publication number Publication date
FR956893A (xx) 1950-02-09
US2577619A (en) 1951-12-04
CH293578A (fr) 1953-09-30
GB664673A (en) 1952-01-09

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