GB1310690A - Dipolar electrooptic structures and method - Google Patents

Dipolar electrooptic structures and method

Info

Publication number
GB1310690A
GB1310690A GB1310690DA GB1310690A GB 1310690 A GB1310690 A GB 1310690A GB 1310690D A GB1310690D A GB 1310690DA GB 1310690 A GB1310690 A GB 1310690A
Authority
GB
United Kingdom
Prior art keywords
dipolar
transparent
mirror
dipolar particles
rear view
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
Application number
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.)
Marks A M
Original Assignee
Marks A M
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 Marks A M filed Critical Marks A M
Publication of GB1310690A publication Critical patent/GB1310690A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • 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 
    • G02F1/17—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 variable-absorption elements not provided for in groups G02F1/015 - G02F1/169
    • G02F1/172—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 variable-absorption elements not provided for in groups G02F1/015 - G02F1/169 based on a suspension of orientable dipolar particles, e.g. suspended particles displays

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Liquid Crystal (AREA)
  • Optical Elements Other Than Lenses (AREA)

Abstract

1310690 Rear view mirrors A M MARKS 9 March 1970 11169/70 Heading B7J [Also in Division H4] A variably reflective mirror comprises a suspension 21 of elongate dipolar particles disposed as a layer 31 between a transparent electrode film 28 on a transparent support 23 and a diffusely or specularly reflective electrode coating 29 on a support 24, so that the orientation of the dipolar particles and thus the transmissivity of layer 31 may be controlled by the application of an electric field thereacross. Transparent layers 25 and 26, e.g. glass, or evaporated silicon monoxide, tantalum oxide, magnesium fluoride, may be provided to protect the electrodes. The dipolar particles may be needles or flakes and formed, e.g. of various metals, hexapathite, lead carbonate, graphite or dichroic crystals. When electrode 29 is specularly reflective, the device may be used as a vehicle rear view mirror, for example as a " day and night mirror ", or controlled by a photocell sensitive to headlights of following vehicles.
GB1310690D 1970-09-09 1970-03-09 Dipolar electrooptic structures and method Expired GB1310690A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1116970 1970-09-09

Publications (1)

Publication Number Publication Date
GB1310690A true GB1310690A (en) 1973-03-21

Family

ID=9981290

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1310690D Expired GB1310690A (en) 1970-09-09 1970-03-09 Dipolar electrooptic structures and method

Country Status (1)

Country Link
GB (1) GB1310690A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2471888A1 (en) * 1979-12-21 1981-06-26 Cd Marketing Ltd Vehicle angled rear view mirror system - has non-reflective mirrors including liq. crystal soln. responsive to electric signal

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2471888A1 (en) * 1979-12-21 1981-06-26 Cd Marketing Ltd Vehicle angled rear view mirror system - has non-reflective mirrors including liq. crystal soln. responsive to electric signal

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees