GB1395795A - Electro-optical light-modution cell - Google Patents

Electro-optical light-modution cell

Info

Publication number
GB1395795A
GB1395795A GB2898772A GB2898772A GB1395795A GB 1395795 A GB1395795 A GB 1395795A GB 2898772 A GB2898772 A GB 2898772A GB 2898772 A GB2898772 A GB 2898772A GB 1395795 A GB1395795 A GB 1395795A
Authority
GB
United Kingdom
Prior art keywords
mixture
butoxy
cell
compounds
modution
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
GB2898772A
Other languages
English (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.)
F Hoffmann La Roche AG
Original Assignee
F Hoffmann La Roche AG
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 F Hoffmann La Roche AG filed Critical F Hoffmann La Roche AG
Priority to US00270789A priority Critical patent/US3795436A/en
Publication of GB1395795A publication Critical patent/GB1395795A/en
Expired 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
    • G02F1/01—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 
    • G02F1/07—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 electro-optical liquids exhibiting Kerr effect
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K19/00—Liquid crystal materials
    • C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
    • C09K19/06—Non-steroidal liquid crystal compounds
    • C09K19/08—Non-steroidal liquid crystal compounds containing at least two non-condensed rings
    • C09K19/10—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings
    • C09K19/22—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings linked by a chain containing carbon and nitrogen atoms as chain links, e.g. Schiff bases
GB2898772A 1971-07-16 1972-07-05 Electro-optical light-modution cell Expired GB1395795A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US00270789A US3795436A (en) 1972-07-05 1972-07-11 Nematogenic material which exhibit the kerr effect at isotropic temperatures

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1048271A CH540500A (de) 1971-07-16 1971-07-16 Elektrooptische Lichtsteuerzelle

Publications (1)

Publication Number Publication Date
GB1395795A true GB1395795A (en) 1975-05-29

Family

ID=4363711

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2898772A Expired GB1395795A (en) 1971-07-16 1972-07-05 Electro-optical light-modution cell

Country Status (7)

Country Link
CA (2) CA971259A (fr)
CH (1) CH540500A (fr)
DD (1) DD99449A5 (fr)
DE (1) DE2234522A1 (fr)
FR (1) FR2146277B1 (fr)
GB (1) GB1395795A (fr)
NL (1) NL7209780A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004029697A1 (fr) * 2002-09-04 2004-04-08 Merck Patent Gmbh Element de commande de lumiere electro-optique comprenant un milieu a phase optiquement isotrope et affichages electro-optiques equipes de cet element

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4058477A (en) * 1972-02-23 1977-11-15 Hoffmann-La Roche Inc. Liquid crystal Schiffs bases
US4058478A (en) * 1972-02-23 1977-11-15 Hoffmann-La Roche Inc. Liquid crystal esters
CH577178A5 (fr) * 1973-04-04 1976-06-30 Hoffmann La Roche
US4061587A (en) * 1973-12-17 1977-12-06 Hoffmann-La Roche Inc. Liquid crystalline cinnamic acid esters
GB8610681D0 (en) * 1986-05-01 1986-06-04 Secr Defence Electro-optical devices

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004029697A1 (fr) * 2002-09-04 2004-04-08 Merck Patent Gmbh Element de commande de lumiere electro-optique comprenant un milieu a phase optiquement isotrope et affichages electro-optiques equipes de cet element

Also Published As

Publication number Publication date
CA971259A (en) 1975-07-15
NL7209780A (fr) 1973-01-18
CA971260A (en) 1975-07-15
FR2146277A1 (fr) 1973-03-02
DD99449A5 (fr) 1973-08-05
FR2146277B1 (fr) 1976-08-06
CH540500A (de) 1973-08-15
DE2234522A1 (de) 1973-01-25

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Legal Events

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