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GB8911520D0 - Optical devices - Google Patents

Optical devices

Info

Publication number
GB8911520D0
GB8911520D0 GB898911520A GB8911520A GB8911520D0 GB 8911520 D0 GB8911520 D0 GB 8911520D0 GB 898911520 A GB898911520 A GB 898911520A GB 8911520 A GB8911520 A GB 8911520A GB 8911520 D0 GB8911520 D0 GB 8911520D0
Authority
GB
United Kingdom
Prior art keywords
optical devices
optical
devices
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.)
Withdrawn
Application number
GB898911520A
Other versions
GB2220500A (en
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.)
FRANKLAND JOHN D
HIGHGATE DONALD J
Original Assignee
FRANKLAND JOHN D
HIGHGATE DONALD J
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 FRANKLAND JOHN D, HIGHGATE DONALD J filed Critical FRANKLAND JOHN D
Publication of GB8911520D0 publication Critical patent/GB8911520D0/en
Publication of GB2220500A publication Critical patent/GB2220500A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/18—Diffraction gratings
    • G02B5/1876—Diffractive Fresnel lenses; Zone plates; Kinoforms
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses
    • G02B3/02—Simple or compound lenses with non-spherical faces
    • G02B3/08—Simple or compound lenses with non-spherical faces with discontinuous faces, e.g. Fresnel lens
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Nonlinear Science (AREA)
  • Eyeglasses (AREA)
GB8911520A 1988-05-19 1989-05-19 Optical devices Withdrawn GB2220500A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB888811887A GB8811887D0 (en) 1988-05-19 1988-05-19 Optical devices

Publications (2)

Publication Number Publication Date
GB8911520D0 true GB8911520D0 (en) 1989-07-05
GB2220500A GB2220500A (en) 1990-01-10

Family

ID=10637182

Family Applications (2)

Application Number Title Priority Date Filing Date
GB888811887A Pending GB8811887D0 (en) 1988-05-19 1988-05-19 Optical devices
GB8911520A Withdrawn GB2220500A (en) 1988-05-19 1989-05-19 Optical devices

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB888811887A Pending GB8811887D0 (en) 1988-05-19 1988-05-19 Optical devices

Country Status (1)

Country Link
GB (2) GB8811887D0 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2688598A1 (en) * 1992-03-13 1993-09-17 Thomson Csf VARIABLE FOCAL FRESNEL PLATE.

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8618345D0 (en) * 1986-07-28 1986-09-03 Purvis A Optical components

Also Published As

Publication number Publication date
GB2220500A (en) 1990-01-10
GB8811887D0 (en) 1988-06-22

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)