ZA722448B - Light control device - Google Patents

Light control device

Info

Publication number
ZA722448B
ZA722448B ZA722448A ZA722448A ZA722448B ZA 722448 B ZA722448 B ZA 722448B ZA 722448 A ZA722448 A ZA 722448A ZA 722448 A ZA722448 A ZA 722448A ZA 722448 B ZA722448 B ZA 722448B
Authority
ZA
South Africa
Prior art keywords
control device
light control
light
control
Prior art date
Application number
ZA722448A
Inventor
P Rosenberg
Original Assignee
Research Frontiers Inc
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 Research Frontiers Inc filed Critical Research Frontiers Inc
Publication of ZA722448B publication Critical patent/ZA722448B/en

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 
    • G02F1/17—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)
  • Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
  • Optical Filters (AREA)
ZA722448A 1971-04-12 1972-04-11 Light control device ZA722448B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US13320571A 1971-04-12 1971-04-12

Publications (1)

Publication Number Publication Date
ZA722448B true ZA722448B (en) 1973-02-28

Family

ID=22457478

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA722448A ZA722448B (en) 1971-04-12 1972-04-11 Light control device

Country Status (10)

Country Link
US (1) US3743382A (en)
JP (1) JPS5632609B1 (en)
CA (1) CA965862A (en)
DE (1) DE2217248A1 (en)
FR (1) FR2132880B1 (en)
GB (1) GB1385505A (en)
IT (1) IT957617B (en)
NL (1) NL7204866A (en)
SE (1) SE377620B (en)
ZA (1) ZA722448B (en)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4739396C1 (en) * 1970-12-28 2002-07-09 Gilbert P Hyatt Projection display system
US4672457A (en) * 1970-12-28 1987-06-09 Hyatt Gilbert P Scanner system
US5398041A (en) * 1970-12-28 1995-03-14 Hyatt; Gilbert P. Colored liquid crystal display having cooling
US4435732A (en) 1973-06-04 1984-03-06 Hyatt Gilbert P Electro-optical illumination control system
US5432526A (en) * 1970-12-28 1995-07-11 Hyatt; Gilbert P. Liquid crystal display having conductive cooling
US4164365A (en) * 1972-07-31 1979-08-14 Research Frontiers Incorporated Light valve for controlling the transmission of radiation comprising a cell and a stabilized liquid suspension
US4078856A (en) * 1976-03-17 1978-03-14 Research Frontiers Incorporated Light valve
US4273422A (en) * 1978-08-10 1981-06-16 Research Frontiers Incorporated Light valve containing liquid suspension including polymer stabilizing system
US4294518A (en) * 1978-11-30 1981-10-13 The Bendix Corporation Dual mode light valve display
DE2910952A1 (en) * 1979-03-20 1980-12-11 Siemens Ag DEVICE FOR IMPROVING THE VISIBILITY OF PASSIVE DISPLAYS
DE2911087A1 (en) * 1979-03-21 1980-09-25 Siemens Ag PRESENTATION METHOD AND DISPLAY DEVICE FOR CARRYING OUT THIS METHOD
US4358743A (en) * 1980-07-09 1982-11-09 Ford Motor Company Light modulator
US4359698A (en) * 1980-07-09 1982-11-16 Ford Motor Company Reflecting type light modulator
US4639078A (en) * 1984-10-05 1987-01-27 Rockwell International Corporation Optical fiber attenuator and method of fabrication
US5150257A (en) * 1991-07-29 1992-09-22 Eaton Corporation High reliability, low intensity back lit SR and NVGC indicator assembly
EP0709713A3 (en) * 1994-10-31 1997-03-26 Fujikura Ltd Electrically controlled color display device and method
US6459418B1 (en) * 1995-07-20 2002-10-01 E Ink Corporation Displays combining active and non-active inks
DE19907334A1 (en) * 1999-02-20 2000-08-24 Bayer Ag Electrically controllable aperture, for image recording equipment, comprises electro-optical material-filled cell with non-structured facing transparent electrodes electrically contacted along peripheral sealing frame
BR0203010A (en) * 2002-07-25 2004-06-01 Luiz Antonio Junior Herbst Adjustable electromagnetic wave filter
US20070211019A1 (en) * 2004-08-09 2007-09-13 Koninklijke Philips Electronics, N.V. Electro-optical suspended particle cell comprising two kinds of anisometric particles with different optical and electromechanical properties
TW200835995A (en) * 2006-10-10 2008-09-01 Cbrite Inc Electro-optic display
TW200842401A (en) 2006-12-22 2008-11-01 Cbrite Inc Hemispherical coating method for micro-elements
US20100035377A1 (en) * 2006-12-22 2010-02-11 Cbrite Inc. Transfer Coating Method

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR20394E (en) * 1913-07-15 1917-11-28 Auguste Victor Bollard Walls intended to oppose horizontal thrusts of solid masses
US1963496A (en) * 1933-01-16 1934-06-19 Edwin H Land Light valve
US3257903A (en) * 1960-11-21 1966-06-28 Alvin M Marks Electrically responsive light controlling devices employing suspended dipole particles and shear forces
US3341274A (en) * 1964-02-04 1967-09-12 Alvin M Marks Electrically responsive light controlling device employing suspended dipole particles in a plastic film
US3322482A (en) * 1965-04-12 1967-05-30 James V Harmon Panel for controlling light transmission by the selective orientation of free particles
FR1476194A (en) * 1965-04-26 1967-04-07 Rca Corp Method and devices for testing the properties of substances mixed with liquid crystals
FR1536032A (en) * 1967-09-06 1968-08-09 Electrically sensitive light adjuster
US3612657A (en) * 1970-06-22 1971-10-12 Zenith Radio Corp Light-intensity control device utilizing oriented particles suspended in a gel

Also Published As

Publication number Publication date
IT957617B (en) 1973-10-20
NL7204866A (en) 1972-10-16
GB1385505A (en) 1975-02-26
FR2132880A1 (en) 1972-11-24
JPS5632609B1 (en) 1981-07-29
SE377620B (en) 1975-07-14
US3743382A (en) 1973-07-03
CA965862A (en) 1975-04-08
DE2217248A1 (en) 1972-11-30
FR2132880B1 (en) 1976-08-06

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