GB2225122B - An apparatus for producing a phase shift in a beam of electromagnetic radiation - Google Patents

An apparatus for producing a phase shift in a beam of electromagnetic radiation

Info

Publication number
GB2225122B
GB2225122B GB8826251A GB8826251A GB2225122B GB 2225122 B GB2225122 B GB 2225122B GB 8826251 A GB8826251 A GB 8826251A GB 8826251 A GB8826251 A GB 8826251A GB 2225122 B GB2225122 B GB 2225122B
Authority
GB
United Kingdom
Prior art keywords
producing
phase shift
electromagnetic radiation
electromagnetic
radiation
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 - Lifetime
Application number
GB8826251A
Other versions
GB8826251D0 (en
GB2225122A (en
Inventor
David John Gibbons
Peter Alan Jefford
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.)
Thorn EMI PLC
Original Assignee
Thorn EMI PLC
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 Thorn EMI PLC filed Critical Thorn EMI PLC
Priority to GB8826251A priority Critical patent/GB2225122B/en
Publication of GB8826251D0 publication Critical patent/GB8826251D0/en
Publication of GB2225122A publication Critical patent/GB2225122A/en
Application granted granted Critical
Publication of GB2225122B publication Critical patent/GB2225122B/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G02F1/29—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 position or the direction of light beams, i.e. deflection
    • G02F1/292—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 position or the direction of light beams, i.e. deflection by controlled diffraction or phased-array beam steering
    • 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 
    • G02F1/13—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 liquid crystals, e.g. single liquid crystal display cells
    • G02F1/137—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 liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
    • G02F1/139—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 liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on orientation effects in which the liquid crystal remains transparent
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/44—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the electric or magnetic characteristics of reflecting, refracting, or diffracting devices associated with the radiating element
    • H01Q3/46—Active lenses or reflecting arrays

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Liquid Crystal (AREA)
GB8826251A 1988-11-09 1988-11-09 An apparatus for producing a phase shift in a beam of electromagnetic radiation Expired - Lifetime GB2225122B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8826251A GB2225122B (en) 1988-11-09 1988-11-09 An apparatus for producing a phase shift in a beam of electromagnetic radiation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8826251A GB2225122B (en) 1988-11-09 1988-11-09 An apparatus for producing a phase shift in a beam of electromagnetic radiation

Publications (3)

Publication Number Publication Date
GB8826251D0 GB8826251D0 (en) 1989-05-17
GB2225122A GB2225122A (en) 1990-05-23
GB2225122B true GB2225122B (en) 1992-12-23

Family

ID=10646585

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8826251A Expired - Lifetime GB2225122B (en) 1988-11-09 1988-11-09 An apparatus for producing a phase shift in a beam of electromagnetic radiation

Country Status (1)

Country Link
GB (1) GB2225122B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2678112B1 (en) * 1991-06-18 1993-12-03 Thomson Csf MICROWAVE ANTENNA WITH OPTOELECTRONIC SCANNING.
GB2321754A (en) * 1997-01-31 1998-08-05 Sharp Kk Diffractive spatial light modulator
DE10102723A1 (en) * 2001-01-22 2002-08-22 Zeiss Carl Beam deflector, switching arrangement with beam deflector and method for optionally linking connections for optical signals
US9553364B2 (en) * 2015-06-15 2017-01-24 The Boeing Company Liquid crystal filled antenna assembly, system, and method
CN108493592B (en) * 2018-05-03 2019-12-20 京东方科技集团股份有限公司 Microstrip antenna, preparation method thereof and electronic equipment

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4639091A (en) * 1983-02-25 1987-01-27 Thomson-Csf Static deflector device for an infrared beam

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4639091A (en) * 1983-02-25 1987-01-27 Thomson-Csf Static deflector device for an infrared beam

Also Published As

Publication number Publication date
GB8826251D0 (en) 1989-05-17
GB2225122A (en) 1990-05-23

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Legal Events

Date Code Title Description
746 Register noted 'licences of right' (sect. 46/1977)

Effective date: 19950613

732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20031109