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GB2188166B - Curved reflector having zones with different focal points - Google Patents

Curved reflector having zones with different focal points

Info

Publication number
GB2188166B
GB2188166B GB8705876A GB8705876A GB2188166B GB 2188166 B GB2188166 B GB 2188166B GB 8705876 A GB8705876 A GB 8705876A GB 8705876 A GB8705876 A GB 8705876A GB 2188166 B GB2188166 B GB 2188166B
Authority
GB
United Kingdom
Prior art keywords
zones
focal points
different focal
curved reflector
reflector
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
GB8705876A
Other versions
GB8705876D0 (en
GB2188166A (en
Inventor
George T Pinson
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.)
Boeing Co
Original Assignee
Boeing Co
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 Boeing Co filed Critical Boeing Co
Publication of GB8705876D0 publication Critical patent/GB8705876D0/en
Publication of GB2188166A publication Critical patent/GB2188166A/en
Application granted granted Critical
Publication of GB2188166B publication Critical patent/GB2188166B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/10—Beam splitting or combining systems
    • G02B27/14—Beam splitting or combining systems operating by reflection only
    • G02B27/143—Beam splitting or combining systems operating by reflection only using macroscopically faceted or segmented reflective surfaces
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B17/00—Systems with reflecting surfaces, with or without refracting elements
    • G02B17/02—Catoptric systems, e.g. image erecting and reversing system
    • G02B17/06—Catoptric systems, e.g. image erecting and reversing system using mirrors only, i.e. having only one curved mirror
    • G02B17/0694—Catoptric systems, e.g. image erecting and reversing system using mirrors only, i.e. having only one curved mirror with variable magnification or multiple imaging planes, including multispectral systems
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/10—Beam splitting or combining systems
    • G02B27/1006—Beam splitting or combining systems for splitting or combining different wavelengths
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/10—Beam splitting or combining systems
    • G02B27/14—Beam splitting or combining systems operating by reflection only
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/10—Beam splitting or combining systems
    • G02B27/14—Beam splitting or combining systems operating by reflection only
    • G02B27/141—Beam splitting or combining systems operating by reflection only using dichroic mirrors
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/08—Mirrors
    • G02B5/09—Multifaceted or polygonal mirrors, e.g. polygonal scanning mirrors; Fresnel mirrors
    • 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
    • H01Q15/14—Reflecting surfaces; Equivalent structures
    • H01Q15/16—Reflecting surfaces; Equivalent structures curved in two dimensions, e.g. paraboloidal

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Electromagnetism (AREA)
  • Aerials With Secondary Devices (AREA)
GB8705876A 1986-03-13 1987-03-12 Curved reflector having zones with different focal points Expired - Lifetime GB2188166B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US83918486A 1986-03-13 1986-03-13

Publications (3)

Publication Number Publication Date
GB8705876D0 GB8705876D0 (en) 1987-04-15
GB2188166A GB2188166A (en) 1987-09-23
GB2188166B true GB2188166B (en) 1990-03-28

Family

ID=25279071

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8705876A Expired - Lifetime GB2188166B (en) 1986-03-13 1987-03-12 Curved reflector having zones with different focal points

Country Status (2)

Country Link
FR (1) FR2595874B1 (en)
GB (1) GB2188166B (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2653941B1 (en) * 1989-10-31 1992-02-28 Thomson Lgt MULTIFOCAL RECEPTION ANTENNA WITH SINGLE POINT DIRECTION FOR MULTIPLE SATELLITES.
US5334990A (en) * 1990-03-26 1994-08-02 K-Star International Corp. Ku-band satellite dish antenna
FR2674377B1 (en) * 1991-03-22 1993-06-04 Alcatel Espace RADIOELECTRIC ANTENNA WITH MULTIFOCAL REFLECTOR.
US5735986A (en) * 1995-11-03 1998-04-07 Fell; Barry Michael Continuous process for the preparation of honeycomb structural material and apparatus suitable for use therein
JP2004500749A (en) 1999-09-21 2004-01-08 ザ　ジョンズ　ホプキンズ　ユニバーシティ Hybrid extendable antenna
WO2001051273A1 (en) 2000-01-11 2001-07-19 Versacore Industrial Corporation Method and device for joining sections of a thermoplastic continuous web material
NL1017786C2 (en) * 2001-04-06 2002-10-08 Tno Bundle separating device.
GB2405489A (en) * 2003-08-30 2005-03-02 Sharp Kk Display and reflector
WO2014114953A2 (en) * 2013-01-28 2014-07-31 Bae Systems Plc Directional multi-band antenna
EP2760081A1 (en) * 2013-01-28 2014-07-30 BAE Systems PLC Directional multi-band antenna
JP6984187B2 (en) * 2017-06-12 2021-12-17 ウシオ電機株式会社 Light irradiation device, light irradiation method

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3972598A (en) * 1974-09-09 1976-08-03 Leco Corporation Multifaceted mirror structure for infrared radiation detector
US4210391A (en) * 1977-09-14 1980-07-01 Cohen Allen L Multifocal zone plate
GB2080969A (en) * 1980-07-22 1982-02-10 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Reflector for illuminating an area
GB2099604A (en) * 1980-12-10 1982-12-08 Anos Alfredo M Solar energy reflective concentrator
GB2113011A (en) * 1981-11-12 1983-07-27 Focus Communications Inc Frequency selective antenna

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2972743A (en) * 1957-06-19 1961-02-21 Westinghouse Electric Corp Combined infrared-radar antenna
JPS5119742B1 (en) * 1970-10-17 1976-06-19
US3927254A (en) * 1975-03-13 1975-12-16 Gen Dynamics Corp Optical seeker scanning system
JPS5773506A (en) * 1980-10-27 1982-05-08 Nippon Telegr & Teleph Corp <Ntt> Common antenna for multifrequency band
JPS5781706A (en) * 1980-11-11 1982-05-21 Nippon Telegr & Teleph Corp <Ntt> Multifrequency shared antenna
JPH0654843B2 (en) * 1983-06-20 1994-07-20 日本電信電話株式会社 Multi-frequency band shared antenna

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3972598A (en) * 1974-09-09 1976-08-03 Leco Corporation Multifaceted mirror structure for infrared radiation detector
US4210391A (en) * 1977-09-14 1980-07-01 Cohen Allen L Multifocal zone plate
GB2080969A (en) * 1980-07-22 1982-02-10 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Reflector for illuminating an area
GB2099604A (en) * 1980-12-10 1982-12-08 Anos Alfredo M Solar energy reflective concentrator
GB2113011A (en) * 1981-11-12 1983-07-27 Focus Communications Inc Frequency selective antenna

Also Published As

Publication number Publication date
GB8705876D0 (en) 1987-04-15
FR2595874A1 (en) 1987-09-18
GB2188166A (en) 1987-09-23
FR2595874B1 (en) 1989-11-17

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee