ZA722448B - Light control device - Google Patents

Light control device

Info

Publication number: ZA722448B
Authority: ZA; South Africa
Prior art keywords: control device; light control; light; control
Prior art date: 1971-04-12

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.)

1971-04-12

Filing date

1972-04-11

Publication date

1973-02-28

1972-04-11 Application filed by Research Frontiers Inc filed Critical Research Frontiers Inc

1973-02-28 Publication of ZA722448B publication Critical patent/ZA722448B/en

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
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
US4672457A (en) *	1970-12-28	1987-06-09	Hyatt Gilbert P	Scanner system
US5432526A (en) *	1970-12-28	1995-07-11	Hyatt; Gilbert P.	Liquid crystal display having conductive cooling
US4739396C1 (en) *	1970-12-28	2002-07-09	Gilbert P Hyatt	Projection display system
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
WO2006016291A1 (en) *	2004-08-09	2006-02-16	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
US20100035377A1 (en) *	2006-12-22	2010-02-11	Cbrite Inc.	Transfer Coating Method
TW200842401A (en)	2006-12-22	2008-11-01	Cbrite Inc	Hemispherical coating method for micro-elements

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

1971
- 1971-04-12 US US00133205A patent/US3743382A/en not_active Expired - Lifetime
1972
- 1972-04-11 SE SE7204662A patent/SE377620B/xx unknown
- 1972-04-11 IT IT49516/72A patent/IT957617B/en active
- 1972-04-11 CA CA139,420A patent/CA965862A/en not_active Expired
- 1972-04-11 DE DE19722217248 patent/DE2217248A1/en not_active Ceased
- 1972-04-11 ZA ZA722448A patent/ZA722448B/en unknown
- 1972-04-12 GB GB1697572A patent/GB1385505A/en not_active Expired
- 1972-04-12 JP JP3615272A patent/JPS5632609B1/ja active Pending
- 1972-04-12 FR FR7212829A patent/FR2132880B1/fr not_active Expired
- 1972-04-12 NL NL7204866A patent/NL7204866A/xx not_active Application Discontinuation

Also Published As

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

Publication	Publication Date	Title
JPS5574607A (en)	1980-06-05	Vehicleeguide control device
JPS5297081A (en)	1977-08-15	Antiiskid device
ZA722448B (en)	1973-02-28	Light control device
ZA726620B (en)	1973-07-25	Control system
CS180689B1 (en)	1978-01-31	Hydrostatic control device
ZA723703B (en)	1973-03-28	Programme control device
IL39177A (en)	1974-11-29	Tension control system
YU34935B (en)	1980-04-30	Flame control device
HK15280A (en)	1980-04-03	Control system
AU4752472A (en)	1974-05-09	Exposure device
SE397315B (en)	1977-10-31	SLIDE CONTROL DEVICE
HK30176A (en)	1976-05-28	Chemiluminescent light device
YU273272A (en)	1979-12-31	Manipulation device
GB1403754A (en)	1975-08-28	Lamp device
FI52640C (en)	1977-10-10	Control device
ZA72792B (en)	1972-10-25	Improved control device
CA972860A (en)	1975-08-12	Control device
AU472992B2 (en)	1976-06-10	Control device
BE780969A (en)	1972-09-21	CONTROL DEVICE
GB1401641A (en)	1975-07-16	Lighting apparatus
IL37594A0 (en)	1971-11-29	Illuminating device
AU4072472A (en)	1973-10-11	Sighting device
CA990860A (en)	1976-06-08	Polychromal light pattern device
ZA723424B (en)	1973-03-28	Control device
GB1400037A (en)	1975-07-16	An aiming control device