[go: up one dir, main page]

WO2000054097A8 - Aktive elektrooptische filtereinrichtung und verfahren zu ihrem betrieb - Google Patents

Aktive elektrooptische filtereinrichtung und verfahren zu ihrem betrieb

Info

Publication number
WO2000054097A8
WO2000054097A8 PCT/CH2000/000040 CH0000040W WO0054097A8 WO 2000054097 A8 WO2000054097 A8 WO 2000054097A8 CH 0000040 W CH0000040 W CH 0000040W WO 0054097 A8 WO0054097 A8 WO 0054097A8
Authority
WO
WIPO (PCT)
Prior art keywords
active
filtering element
electronics unit
range
light
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.)
Ceased
Application number
PCT/CH2000/000040
Other languages
English (en)
French (fr)
Other versions
WO2000054097A2 (de
WO2000054097A3 (de
Inventor
Leo Keller
Emil Ackermann
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.)
Optrel AG
Original Assignee
Optrel AG
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 Optrel AG filed Critical Optrel AG
Priority to KR1020017011384A priority Critical patent/KR20020007319A/ko
Priority to EP00901013A priority patent/EP1259852A2/de
Publication of WO2000054097A2 publication Critical patent/WO2000054097A2/de
Anticipated expiration legal-status Critical
Publication of WO2000054097A3 publication Critical patent/WO2000054097A3/de
Publication of WO2000054097A8 publication Critical patent/WO2000054097A8/de
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F9/00—Methods or devices for treatment of the eyes; Devices for putting in contact-lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
    • A61F9/04—Eye-masks ; Devices to be worn on the face, not intended for looking through; Eye-pads for sunbathing
    • A61F9/06—Masks, shields or hoods for welders
    • A61F9/065—Masks, shields or hoods for welders use of particular optical filters
    • A61F9/067—Masks, shields or hoods for welders use of particular optical filters with variable transmission
    • 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
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/13306—Circuit arrangements or driving methods for the control of single liquid crystal cells
    • 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
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/13306—Circuit arrangements or driving methods for the control of single liquid crystal cells
    • G02F1/13318—Circuits comprising a photodetector
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/04—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of a single character by selection from a plurality of characters, or by composing the character by combination of individual elements, e.g. segments using a combination of such display devices for composing words, rows or the like, in a frame with fixed character positions
    • G09G3/16—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of a single character by selection from a plurality of characters, or by composing the character by combination of individual elements, e.g. segments using a combination of such display devices for composing words, rows or the like, in a frame with fixed character positions by control of light from an independent source
    • G09G3/18—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of a single character by selection from a plurality of characters, or by composing the character by combination of individual elements, e.g. segments using a combination of such display devices for composing words, rows or the like, in a frame with fixed character positions by control of light from an independent source using liquid crystals
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S323/00—Electricity: power supply or regulation systems
    • Y10S323/906—Solar cell systems

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Optics & Photonics (AREA)
  • Mathematical Physics (AREA)
  • Vascular Medicine (AREA)
  • Ophthalmology & Optometry (AREA)
  • Public Health (AREA)
  • General Health & Medical Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Veterinary Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Liquid Crystal (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

Die aktive optische Filtereinrichtung, die sich insbesondere als Blendschutzvorrichtung zum Einsatz in Schweissschutzmasken, -helmen oder -brillen eignet, ist in an sich bekannter Weise mit einem Lichtschutzfilter mit mindestens einem aktiven optischen Filterelement und mit einer Elektronik zur Steuerung des aktiven Filterelements sowie mit einem mit der Elektronik zusammenwirkenden Lichtsensor und einer Stromversorgung, insbesondere einer Solarzelle, für die Elektronik und das aktive Filterelement ausgestattet. Die Ansteuerschaltung für das aktive Filterelement ist derart ausgebildet, dass im Bereich Der Rahmenfrequenz (1/T) von 0.01 bis 1 Hz der Lastkondensator kurzzeitig vollständig entladen wird, wodurch die Leistungsaufnahme im Vergleich mit bekannten Schaltungen halbiert wird. Gleichzeitig wird die Betriebsspannung (U) in einen Bereich gelegt, der quantitativ festgelegt ist und in welchem der Streulichtanteil der verwendeten Flüssigkristallanzeige durch diese Festlegung minimal ist.
PCT/CH2000/000040 1999-03-11 2000-01-28 Aktive elektrooptische filtereinrichtung und verfahren zu ihrem betrieb Ceased WO2000054097A2 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1020017011384A KR20020007319A (ko) 1999-03-11 2000-01-28 능동 전기 광학 필터링 장치 및 이것을 동작시키는 방법
EP00901013A EP1259852A2 (de) 1999-03-11 2000-01-28 Aktive elektrooptische filtereinrichtung und verfahren zu ihrem betrieb

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH00458/99A CH694384A5 (de) 1999-03-11 1999-03-11 Aktive elektrooptische Filtereinrichtung und Verfahren zu ihrem Betrieb.
CH458/99 1999-03-11

Publications (3)

Publication Number Publication Date
WO2000054097A2 WO2000054097A2 (de) 2000-09-14
WO2000054097A3 WO2000054097A3 (de) 2002-09-26
WO2000054097A8 true WO2000054097A8 (de) 2003-01-03

Family

ID=4187481

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CH2000/000040 Ceased WO2000054097A2 (de) 1999-03-11 2000-01-28 Aktive elektrooptische filtereinrichtung und verfahren zu ihrem betrieb

Country Status (6)

Country Link
EP (1) EP1259852A2 (de)
KR (1) KR20020007319A (de)
CN (1) CN1559021A (de)
CH (1) CH694384A5 (de)
TW (1) TW527499B (de)
WO (1) WO2000054097A2 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100617036B1 (ko) * 2003-12-27 2006-08-30 엘지.필립스 엘시디 주식회사 액정표시장치의 제조방법
US8264265B2 (en) * 2010-09-30 2012-09-11 Kimberly-Clark Worldwide, Inc. Automatic darkening filter (ADF) eye protection device with improved drive circuitry
EP2799046A1 (de) 2013-04-30 2014-11-05 Optrel Ag Vorrichtung und Verfahren zum Blendschutz

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5731148B2 (de) * 1973-05-15 1982-07-02
US4279474A (en) * 1980-03-25 1981-07-21 Belgorod Barry M Spectacle lens having continuously variable controlled density and fast response time
CH687909A5 (de) * 1991-12-31 1997-03-27 Xelux Holding Ag Verfahren zum Betrieb einer Blendschutzvorrichtung.
SE509569C2 (sv) * 1995-10-26 1999-02-08 Hoernell International Ab Vätskekristallslutarkonstruktion

Also Published As

Publication number Publication date
WO2000054097A2 (de) 2000-09-14
EP1259852A2 (de) 2002-11-27
CN1559021A (zh) 2004-12-29
CH694384A5 (de) 2004-12-15
WO2000054097A3 (de) 2002-09-26
KR20020007319A (ko) 2002-01-26
TW527499B (en) 2003-04-11

Similar Documents

Publication Publication Date Title
RU2385699C2 (ru) Автоматический затемняющий фильтр с автоматическим управлением питания
EP2191800B1 (de) Abblendvorrichtung mit funktioneller Anzeige
KR100290543B1 (ko) 온도 보상 눈부심 방지장치 및 그 방법
US5315099A (en) Glare shielding device and process for operating same
US8599323B2 (en) Battery low-voltage warning apparatus for auto-darkening filter for welding helmet
WO1999052479A3 (en) Apparatus, system, and method for preventing computer vision syndrome
US7564014B2 (en) Apparatus for detecting welding light and protecting eyes from glare and method for controlling the same
US20140063377A1 (en) AntiGlare Device
WO2000054097A8 (de) Aktive elektrooptische filtereinrichtung und verfahren zu ihrem betrieb
JPS55156901A (en) Electronic control type mirror
US10890792B2 (en) Auto darkening filter capable of achieving high light-shielding number
US20140021337A1 (en) Multifunctional digital antiglare device
DE69415178D1 (de) Elektrooptische filterkassette und dessen herstellungsverfahren
JPH11160659A (ja) 暗色化機能を有する透明レンズユニットを具備した眼用保護装具
WO2006073408A3 (en) Active laser protection system
EP2156241A1 (de) Aufhellende lichtschutzvorrichtung
JPH01150114A (ja) 太陽電池付液晶サングラス
JPH03163413A (ja) 電子サングラス
KR950020433U (ko) 액정표시 소자의 저온/고온 안정화 장치
CN206819205U (zh) 一体机电脑屏幕调节装置
GB2138590A (en) Welder's eyeshield having optoelectric element e.g. liquid crystal element
JPH02287424A (ja) 電子サングラス
JPS566214A (en) Winking spectacles
KR950014922A (ko) 빛의 세기에 따라 보안 역할을 하는 안경
KR19990013098A (ko) 박막트랜지스터 액정 모듈을 이용한 광투과율 조절 유리판

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 00807460.7

Country of ref document: CN

AK Designated states

Kind code of ref document: A2

Designated state(s): CN JP KR SI US

AL Designated countries for regional patents

Kind code of ref document: A2

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE

121 Ep: the epo has been informed by wipo that ep was designated in this application
DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
WWE Wipo information: entry into national phase

Ref document number: 2000901013

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 1020017011384

Country of ref document: KR

WWE Wipo information: entry into national phase

Ref document number: 09936277

Country of ref document: US

WWP Wipo information: published in national office

Ref document number: 2000901013

Country of ref document: EP

WR Later publication of a revised version of an international search report
WWW Wipo information: withdrawn in national office

Ref document number: 2000901013

Country of ref document: EP