GB2382150B - Optical apparatus - Google Patents

Optical apparatus

Info

Publication number
GB2382150B
GB2382150B GB8421122A GB8421122A GB2382150B GB 2382150 B GB2382150 B GB 2382150B GB 8421122 A GB8421122 A GB 8421122A GB 8421122 A GB8421122 A GB 8421122A GB 2382150 B GB2382150 B GB 2382150B
Authority
GB
United Kingdom
Prior art keywords
optical apparatus
optical
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
GB8421122A
Other versions
GB8421122D0 (en
GB2382150A (en
Inventor
Leslie Charles Laycock
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.)
General Electric Co PLC
BAE Systems Electronics Ltd
Original Assignee
General Electric Co PLC
BAE Systems Electronics 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 General Electric Co PLC, BAE Systems Electronics Ltd filed Critical General Electric Co PLC
Publication of GB8421122D0 publication Critical patent/GB8421122D0/en
Publication of GB2382150A publication Critical patent/GB2382150A/en
Application granted granted Critical
Publication of GB2382150B publication Critical patent/GB2382150B/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
    • G02F1/35—Non-linear optics
    • G02F1/353—Frequency conversion, i.e. wherein a light beam is generated with frequency components different from those of the incident light beams
    • G02F1/3536—Four-wave interaction
    • G02F1/3538—Four-wave interaction for optical phase conjugation

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mechanical Optical Scanning Systems (AREA)
GB8421122A 1983-08-26 1984-08-20 Optical apparatus Expired - Lifetime GB2382150B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB8323076.3A GB8323076D0 (en) 1983-08-26 1983-08-26 Optical tracking

Publications (3)

Publication Number Publication Date
GB8421122D0 GB8421122D0 (en) 2001-11-28
GB2382150A GB2382150A (en) 2003-05-21
GB2382150B true GB2382150B (en) 2003-10-29

Family

ID=10547952

Family Applications (2)

Application Number Title Priority Date Filing Date
GBGB8323076.3A Ceased GB8323076D0 (en) 1983-08-26 1983-08-26 Optical tracking
GB8421122A Expired - Lifetime GB2382150B (en) 1983-08-26 1984-08-20 Optical apparatus

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GBGB8323076.3A Ceased GB8323076D0 (en) 1983-08-26 1983-08-26 Optical tracking

Country Status (1)

Country Link
GB (2) GB8323076D0 (en)

Also Published As

Publication number Publication date
GB8323076D0 (en) 2001-11-28
GB8421122D0 (en) 2001-11-28
GB2382150A (en) 2003-05-21

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PE20 Patent expired after termination of 20 years

Effective date: 20040819