SE420027B - Forfarande for kontinuerlig styrning av intensiteten av genom en elektro-optisk flytande kristallcell gaende ljus - Google Patents

Forfarande for kontinuerlig styrning av intensiteten av genom en elektro-optisk flytande kristallcell gaende ljus

Info

Publication number
SE420027B
SE420027B SE7501996A SE7501996A SE420027B SE 420027 B SE420027 B SE 420027B SE 7501996 A SE7501996 A SE 7501996A SE 7501996 A SE7501996 A SE 7501996A SE 420027 B SE420027 B SE 420027B
Authority
SE
Sweden
Prior art keywords
electro
intensity
procedure
liquid crystal
crystal cell
Prior art date
Application number
SE7501996A
Other languages
English (en)
Swedish (sv)
Other versions
SE7501996L (sv
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.)
Filing date
Publication date
Application filed by Hoffmann La Roche, Bbc Brown Boveri & Cie filed Critical Hoffmann La Roche
Publication of SE7501996L publication Critical patent/SE7501996L/
Publication of SE420027B publication Critical patent/SE420027B/xx

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
    • G02F1/139—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)
  • Motor Or Generator Current Collectors (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
SE7501996A 1970-12-04 1975-02-21 Forfarande for kontinuerlig styrning av intensiteten av genom en elektro-optisk flytande kristallcell gaende ljus SE420027B (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1793770A CH532261A (de) 1970-12-04 1970-12-04 Lichtsteuerzelle

Publications (2)

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

Family

ID=4429210

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7501996A SE420027B (sv) 1970-12-04 1975-02-21 Forfarande for kontinuerlig styrning av intensiteten av genom en elektro-optisk flytande kristallcell gaende ljus

Country Status (9)

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

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH589856A5 (de) * 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 (de) * 1985-08-01 1987-03-07
IT1316145B1 (it) * 2000-10-26 2003-03-28 Viptronic Srl Dispositivo di misurazione fotoelettrica dotato di filtro dipolarizzazione.
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
US8416355B2 (en) 2007-06-20 2013-04-09 Tc View Ltd. Directional filter device for controlling direction of maximal blocking of incident light
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
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
WO2013013662A1 (de) 2011-07-28 2013-01-31 Eads Deutschland Gmbh Lichttransmissionsbeeinflussungsvorrichtung sowie ein damit versehenes luftfahrzeugfenster und ein verfahren zum herstellen einer solchen lichttransmissionsbeeinflussungsvorrichtung
WO2016044071A1 (en) 2014-09-15 2016-03-24 3M Innovative Properties Company Personal protective system tool communication adapter
DE102018213078B4 (de) * 2018-08-06 2020-06-18 Zf Friedrichshafen Ag Verdunkelungsvorrichtung für eine ADAS-Kamera, Steuergerät für ein ADAS-Kamerasystem, ADAS-Kamerasystem und Fahrzeug mit einem ADAS-Kamerasystem
DE102019205012A1 (de) * 2019-04-08 2020-10-08 Zf Friedrichshafen Ag Steuergerät für eine Verdunkelungsvorrichtung mit veränderbarer Lichtdurchlässigkeit für eine Fahrzeugscheibe, Verdunkelungssystem für eine Fahrzeugscheibe, Verfahren zum Verdunkeln einer Fahrzeugscheibe und Computerprogrammprodukt zum Verdunkeln einer Fahrzeugscheibe
DE102020203585A1 (de) 2020-03-20 2021-09-23 Zf Friedrichshafen Ag Anordnung und Filter für Bildverarbeitung, computerimplementiertes Verfahren zum Steuern eines derartigen Filters, Steuergerät für einen Bildgebungssensor, Kamera zum Polarisieren von Licht und Steuerungssystem für ein Fahrzeug umfassend eine derartige Kamera

Also Published As

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

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