SE420027B - PROCEDURE FOR CONTINUOUS CONTROL OF THE INTENSITY OF AN ELECTRO-OPTIC LIQUID CRYSTAL CELL LIGHTING - Google Patents

PROCEDURE FOR CONTINUOUS CONTROL OF THE INTENSITY OF AN ELECTRO-OPTIC LIQUID CRYSTAL CELL LIGHTING

Info

Publication number: SE420027B
Authority: SE; Sweden
Prior art keywords: electro; intensity; procedure; liquid crystal; crystal cell
Prior art date: 1970-12-04

Application number

SE7501996A

Other languages

Swedish (sv)

Other versions

SE7501996L (en

Inventor

W Helfrich

M Schadt

Original Assignee

Hoffmann La Roche

Bbc Brown Boveri & Cie

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.)

1970-12-04

Filing date

1975-02-21

Publication date

1981-09-07

1975-02-21 Application filed by Hoffmann La Roche, Bbc Brown Boveri & Cie filed Critical Hoffmann La Roche

1975-02-21 Publication of SE7501996L publication Critical patent/SE7501996L/en

1981-09-07 Publication of SE420027B publication Critical patent/SE420027B/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
- G02F1/13—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
- G02F1/139—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 orientation effects in which the liquid crystal remains transparent
- G02F1/1396—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 orientation effects in which the liquid crystal remains transparent the liquid crystal being selectively controlled between a twisted state and a non-twisted state, e.g. TN-LC cell

Landscapes

Physics & Mathematics (AREA)
Nonlinear Science (AREA)
Chemical & Material Sciences (AREA)
Crystallography & Structural Chemistry (AREA)
General Physics & Mathematics (AREA)
Optics & Photonics (AREA)
Liquid Crystal (AREA)
Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Holo Graphy (AREA)
Liquid Crystal Display Device Control (AREA)
Motor Or Generator Current Collectors (AREA)

SE7501996A 1970-12-04 1975-02-21 PROCEDURE FOR CONTINUOUS CONTROL OF THE INTENSITY OF AN ELECTRO-OPTIC LIQUID CRYSTAL CELL LIGHTING SE420027B (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CH1793770A CH532261A (en)	1970-12-04	1970-12-04	Light control cell

Publications (2)

Publication Number	Publication Date
SE7501996L SE7501996L (en)	1975-02-21
SE420027B true SE420027B (en)	1981-09-07

Family

ID=4429210

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
SE7501996A SE420027B (en)	1970-12-04	1975-02-21	PROCEDURE FOR CONTINUOUS CONTROL OF THE INTENSITY OF AN ELECTRO-OPTIC LIQUID CRYSTAL CELL LIGHTING

Country Status (9)

Country	Link
JP (5)	JPS5113666B1 (en)
AT (1)	AT323821B (en)
AU (1)	AU450702B2 (en)
CH (1)	CH532261A (en)
DE (1)	DE7047103U (en)
IL (1)	IL38107A (en)
NO (1)	NO133857C (en)
SE (1)	SE420027B (en)
SU (1)	SU694102A3 (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CH589856A5 (en) *	1975-12-29	1977-07-15	Kern & Co Ag
GB2028527B (en) *	1978-06-08	1982-11-24	American Liquid Xtal Chem	Liquid crystal displays
JPS6238682U (en) *	1985-08-01	1987-03-07
IT1316145B1 (en) *	2000-10-26	2003-03-28	Viptronic Srl	PHOTOELECTRIC MEASUREMENT DEVICE EQUIPPED WITH A DIPOLARIZATION FILTER.
US7477330B2 (en)	2005-03-09	2009-01-13	3M Innovative Properties Company	Automatic darkening filter with offset polarizers
US7637622B2 (en)	2005-10-11	2009-12-29	3M Innovative Properties Company	Control of an automatic darkening filter
EP2158503A4 (en)	2007-06-20	2010-10-13	T C View Ltd	Methods systems and devices for utilizing directions of light rays
US8184215B2 (en)	2010-08-17	2012-05-22	Lc-Tec Displays Ab	High-speed liquid crystal polarization modulator
US8023052B1 (en)	2010-08-17	2011-09-20	Lc-Tec Displays Ab	High-speed liquid crystal polarization modulator
US8820937B2 (en)	2010-08-17	2014-09-02	Lc-Tec Displays Ab	Optical polarization state modulator assembly for use in stereoscopic three-dimensional image projection system
DE112012003154A5 (en)	2011-07-28	2014-06-18	Eads Deutschland Gmbh	A light transmission influencing device and an aircraft window provided therewith and a method of manufacturing such a light transmission influencing device
AU2015318237B2 (en)	2014-09-15	2018-05-31	3M Innovative Properties Company	Personal protective system tool communication adapter
DE102018213078B4 (en) *	2018-08-06	2020-06-18	Zf Friedrichshafen Ag	Blackout device for an ADAS camera, control unit for an ADAS camera system, ADAS camera system and vehicle with an ADAS camera system
DE102019205012A1 (en) *	2019-04-08	2020-10-08	Zf Friedrichshafen Ag	Control unit for a darkening device with variable light transmission for a vehicle window, darkening system for a vehicle window, method for darkening a vehicle window and computer program product for darkening a vehicle window
DE102020203585A1 (en)	2020-03-20	2021-09-23	Zf Friedrichshafen Ag	Arrangement and filters for image processing, computer-implemented method for controlling such a filter, control device for an imaging sensor, camera for polarizing light and control system for a vehicle comprising such a camera

1970
- 1970-12-04 CH CH1793770A patent/CH532261A/en not_active IP Right Cessation
- 1970-12-21 DE DE19707047103 patent/DE7047103U/en not_active Expired
1971
- 1971-11-05 AT AT956671A patent/AT323821B/en not_active IP Right Cessation
- 1971-11-09 IL IL3810771A patent/IL38107A/en unknown
- 1971-11-11 AU AU35615/71A patent/AU450702B2/en not_active Expired
- 1971-12-02 SU SU711721775A patent/SU694102A3/en active
- 1971-12-03 NO NO447071A patent/NO133857C/no unknown
- 1971-12-03 JP JP46098257A patent/JPS5113666B1/ja active Pending
1975
- 1975-02-21 SE SE7501996A patent/SE420027B/en not_active IP Right Cessation
- 1975-07-22 JP JP8957075A patent/JPS5133654A/en active Pending
1979
- 1979-07-09 JP JP8680479A patent/JPS5552026A/en active Pending
- 1979-07-09 JP JP8680379A patent/JPS5552027A/en active Pending
1983
- 1983-04-25 JP JP6201383U patent/JPS599327U/en active Pending

Also Published As

Publication number	Publication date
NO133857C (en)	1976-07-07
JPS5552027A (en)	1980-04-16
AU450702B2 (en)	1974-07-18
AT323821B (en)	1975-07-25
DE7047103U (en)	1972-09-28
IL38107A (en)	1974-09-10
NO133857B (en)	1976-03-29
SU694102A3 (en)	1979-10-25
SE7501996L (en)	1975-02-21
JPS5113666B1 (en)	1976-05-01
JPS5552026A (en)	1980-04-16
JPS5133654A (en)	1976-03-22
CH532261A (en)	1972-12-31
JPS599327U (en)	1984-01-21
AU3561571A (en)	1973-05-17

Publication	Publication Date	Title
SE401872B (en)	1978-05-29	LIQUID CRYSTAL SCREEN
SE386294B (en)	1976-08-02	PRESENTATION PANEL WITH LIQUID CRYSTALS
AT351614B (en)	1979-08-10	LIQUID CRYSTAL MATERIALS
SE383492B (en)	1976-03-15	LIQUID CRYSTAL MIRROR.
AT340493B (en)	1977-12-12	USE OF LIQUID CRYSTAL MATERIALS
SE7614628L (en)	1977-07-01	LIQUID CRYSTAL
DE2412646B2 (en)	1976-07-15	ELECTRO-OPTICAL COMPONENT
NL7409684A (en)	1975-01-21	DISPLAY DEVICE WITH LIQUID CRYSTALS.
SE434913B (en)	1984-08-27	DEVICE FOR FRACTIONING OF LIQUID MIXTURES
SE358828C (en)	1983-05-09	DEVICE PROCEDURE CONTROL PROCEDURE
SE420027B (en)	1981-09-07	PROCEDURE FOR CONTINUOUS CONTROL OF THE INTENSITY OF AN ELECTRO-OPTIC LIQUID CRYSTAL CELL LIGHTING
IT1017740B (en)	1977-08-10	ELECTROCHROMIC DEVICE
CH432654A (en)	1967-03-31	Device for electro-optical modulation of light
AT345909B (en)	1978-10-10	CONTROLLABLE LIQUID CRYSTAL DISPLAY DEVICE
SE389203B (en)	1976-10-25	LIQUID CRYSTAL CELL WITH ELECTROOPTICAL LIGHT DISTRIBUTION PROPERTIES
AT323249B (en)	1975-06-25	LIQUID CRYSTAL CELL
AT296406B (en)	1972-02-10	Liquid crystal element
FI54359C (en)	1979-07-05	CALENDAR FOR THE PURPOSE OF GLAETTING AV EN PAPPERSBANA
AT338344B (en)	1977-08-25	DIELECTRIC WITH POSITIVE DIELECTRIC ANISOTROPY FOR LIQUID CRYSTAL CELLS
AT358108B (en)	1980-08-25	LIQUID CRYSTAL DISPLAY
AT305392B (en)	1973-02-26	Liquid crystal cell
NO137872C (en)	1978-05-10	DEVICE FOR REGULATING THE CONCENTRATION OF A LIQUID SOLUTION
SU511849A3 (en)	1976-04-25	The method of obtaining complex liquid crystal esters
CA929612A (en)	1973-07-03	Liquid crystal electro-optical modulators
CA957756A (en)	1974-11-12	Liquid crystal cells

Legal Events

Date	Code	Title	Description
1995-01-31	NUG	Patent has lapsed	Ref document number: 7501996-8 Effective date: 19920109 Format of ref document f/p: F

Date

Code

Title

Description

1995-01-31

NUG

Patent has lapsed

Ref document number: 7501996-8

Effective date: 19920109

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