GB1512393A - Liquid crystalline light modulation - Google Patents

Liquid crystalline light modulation

Info

Publication number
GB1512393A
GB1512393A GB1724475A GB1724475A GB1512393A GB 1512393 A GB1512393 A GB 1512393A GB 1724475 A GB1724475 A GB 1724475A GB 1724475 A GB1724475 A GB 1724475A GB 1512393 A GB1512393 A GB 1512393A
Authority
GB
United Kingdom
Prior art keywords
mesophase
absorption
light
band
absorbing material
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
GB1724475A
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.)
Xerox Corp
Original Assignee
Xerox Corp
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 Xerox Corp filed Critical Xerox Corp
Publication of GB1512393A publication Critical patent/GB1512393A/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 
    • G02F1/13—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 liquid crystals, e.g. single liquid crystal display cells
    • G02F1/137—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 liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
    • G02F1/13725—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 liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on guest-host interaction
    • 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
    • C09K19/36—Steroidal liquid crystal compounds
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/30—Polarising elements
    • G02B5/3016—Polarising elements involving passive liquid crystal elements
    • 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
    • C09K19/52—Liquid crystal materials characterised by components which are not liquid crystals, e.g. additives with special physical aspect: solvents, solid particles
    • C09K2019/523—Organic solid particles

Landscapes

  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
  • Liquid Crystal (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
GB1724475A 1974-04-29 1975-04-25 Liquid crystalline light modulation Expired GB1512393A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US46505074A 1974-04-29 1974-04-29

Publications (1)

Publication Number Publication Date
GB1512393A true GB1512393A (en) 1978-06-01

Family

ID=23846304

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1724475A Expired GB1512393A (en) 1974-04-29 1975-04-25 Liquid crystalline light modulation

Country Status (5)

Country Link
JP (1) JPS5194979A (enExample)
CA (1) CA1028538A (enExample)
FR (1) FR2269099A1 (enExample)
GB (1) GB1512393A (enExample)
NL (1) NL7503511A (enExample)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3780307A (en) * 1971-10-22 1973-12-18 Xerox Corp Liquid crystalline compositions having induced optical activity

Also Published As

Publication number Publication date
CA1028538A (en) 1978-03-28
JPS5194979A (enExample) 1976-08-20
FR2269099A1 (enExample) 1975-11-21
NL7503511A (nl) 1975-06-30

Similar Documents

Publication Publication Date Title
US6239778B1 (en) Variable light attentuating dichroic dye guest-host device
DE3478513D1 (en) Low birefringence encapsulated liquid crystal and optical shutter using same
FI81688B (fi) Optiskt filter foer svetsskyddsglas.
EP0111907A2 (en) Non-glaring type reflector
ATE88019T1 (de) Eingekapselter fluessigkristall mit einer smektischen phase.
EP0641372A4 (en) LIQUID CRYSTALINE, LIGHT-MODULATING DEVICE AND MATERIAL.
GB1266777A (enExample)
GB1406496A (en) Optical devices
GB1512393A (en) Liquid crystalline light modulation
GB2169092B (en) Liquid crystal display devices
GB1396385A (en) Light modulation method
EP0370627A3 (en) Optical device with dielectric heating
US3021754A (en) Light polarizing apparatus or the like
WO2003009058A3 (de) Elektrisch steuerbarer lichtmodulator
JPS6473326A (en) Light signal modulating medium
JPS551512A (en) Watch
JPS5221843A (en) Solid state thin film light modulation element
FR2226688A1 (en) Photo-copying-proof recording medium - contains photo-chromic cpd. darkening rapidly in strong light
EP0339896A3 (en) Laser crystals for generating infrared emission with high quality beam penetration
JPS56162701A (en) Wavelength varying filter
CHEN Applications of magneto-optic materials(to light beam control and optical memory)
GB1165533A (en) Light-Reflective Elements
SU462855A1 (ru) Электрооптический жидкокристаллический материал
JPS554017A (en) Photo switch
JPS52112336A (en) Photo modulator

Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee