GB2351813B - Optical protection - Google Patents

Optical protection

Info

Publication number
GB2351813B
GB2351813B GB8432070A GB8432070A GB2351813B GB 2351813 B GB2351813 B GB 2351813B GB 8432070 A GB8432070 A GB 8432070A GB 8432070 A GB8432070 A GB 8432070A GB 2351813 B GB2351813 B GB 2351813B
Authority
GB
United Kingdom
Prior art keywords
optical protection
optical
protection
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
GB8432070A
Other versions
GB8432070D0 (en
GB2351813A (en
Inventor
Paul Kevin Kimber
Simon Roger Hall
Peter Vincent Kolinsky
Graham Thomas Jenkin
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.)
BAE Systems Electronics Ltd
Original Assignee
Marconi Co 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 Marconi Co Ltd filed Critical Marconi Co Ltd
Publication of GB8432070D0 publication Critical patent/GB8432070D0/en
Publication of GB2351813A publication Critical patent/GB2351813A/en
Application granted granted Critical
Publication of GB2351813B publication Critical patent/GB2351813B/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
    • G02F1/3511—Self-focusing or self-trapping of light; Light-induced birefringence; Induced optical Kerr-effect
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/20—Filters
    • G02B5/205—Neutral density filters
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/20—Filters
    • G02B5/22—Absorbing filters
    • G02B5/24—Liquid filters
    • 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
    • G02F1/0009—Materials therefor
    • G02F1/0063—Optical properties, e.g. absorption, reflection or birefringence

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Nonlinear Science (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
GB8432070A 1983-12-19 1984-12-19 Optical protection Expired - Lifetime GB2351813B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB8333903.6A GB8333903D0 (en) 1983-12-19 1983-12-19 Optical protection

Publications (3)

Publication Number Publication Date
GB8432070D0 GB8432070D0 (en) 2000-11-22
GB2351813A GB2351813A (en) 2001-01-10
GB2351813B true GB2351813B (en) 2001-04-25

Family

ID=10553567

Family Applications (2)

Application Number Title Priority Date Filing Date
GBGB8333903.6A Ceased GB8333903D0 (en) 1983-12-19 1983-12-19 Optical protection
GB8432070A Expired - Lifetime GB2351813B (en) 1983-12-19 1984-12-19 Optical protection

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GBGB8333903.6A Ceased GB8333903D0 (en) 1983-12-19 1983-12-19 Optical protection

Country Status (1)

Country Link
GB (2) GB8333903D0 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013201139A1 (en) * 2013-01-24 2014-07-24 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Method and device for limiting a transmitted optical power and rangefinder

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2033603A (en) * 1978-11-01 1980-05-21 Applied Photophysics Ltd Improvements in or relating to protective viewing devices
GB2152661A (en) * 1984-01-02 1985-08-07 Zeiss Jena Veb Carl Light receiving unit for antiglare glasses

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2033603A (en) * 1978-11-01 1980-05-21 Applied Photophysics Ltd Improvements in or relating to protective viewing devices
GB2152661A (en) * 1984-01-02 1985-08-07 Zeiss Jena Veb Carl Light receiving unit for antiglare glasses

Also Published As

Publication number Publication date
GB8432070D0 (en) 2000-11-22
GB2351813A (en) 2001-01-10
GB8333903D0 (en) 2000-11-22

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Legal Events

Date Code Title Description
PE20 Patent expired after termination of 20 years

Effective date: 20041218