DE69129759D1 - Verfahren und vorrichtung zur steuerung des grades der helligkeitsempfindung mittels einer zeitveränderlichen blende - Google Patents

Verfahren und vorrichtung zur steuerung des grades der helligkeitsempfindung mittels einer zeitveränderlichen blende

Info

Publication number
DE69129759D1
DE69129759D1 DE69129759T DE69129759T DE69129759D1 DE 69129759 D1 DE69129759 D1 DE 69129759D1 DE 69129759 T DE69129759 T DE 69129759T DE 69129759 T DE69129759 T DE 69129759T DE 69129759 D1 DE69129759 D1 DE 69129759D1
Authority
DE
Germany
Prior art keywords
light
transparent
perceived
small increments
less bright
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.)
Expired - Lifetime
Application number
DE69129759T
Other languages
English (en)
Inventor
John HUMPHREY
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.)
HUMPHREY ENG Inc
Original Assignee
HUMPHREY ENG 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 HUMPHREY ENG Inc filed Critical HUMPHREY ENG Inc
Application granted granted Critical
Publication of DE69129759D1 publication Critical patent/DE69129759D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C7/00—Optical parts
    • G02C7/10—Filters, e.g. for facilitating adaptation of the eyes to the dark; Sunglasses
    • G02C7/101—Filters, e.g. for facilitating adaptation of the eyes to the dark; Sunglasses having an electro-optical light valve
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
    • A61B3/02—Subjective types, i.e. testing apparatus requiring the active assistance of the patient
    • A61B3/06—Subjective types, i.e. testing apparatus requiring the active assistance of the patient for testing light sensitivity, e.g. adaptation; for testing colour vision
    • A61B3/063—Subjective types, i.e. testing apparatus requiring the active assistance of the patient for testing light sensitivity, e.g. adaptation; for testing colour vision for testing light sensitivity, i.e. adaptation
    • 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
    • G02F1/13318—Circuits comprising a photodetector

Landscapes

  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • General Health & Medical Sciences (AREA)
  • Optics & Photonics (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Vascular Medicine (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Mathematical Physics (AREA)
  • Biophysics (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Liquid Crystal (AREA)
  • Eyeglasses (AREA)
  • Instruments For Viewing The Inside Of Hollow Bodies (AREA)
DE69129759T 1990-12-14 1991-08-01 Verfahren und vorrichtung zur steuerung des grades der helligkeitsempfindung mittels einer zeitveränderlichen blende Expired - Lifetime DE69129759D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US62832390A 1990-12-14 1990-12-14
PCT/US1991/005543 WO1992010130A1 (en) 1990-12-14 1991-08-01 Method and apparatus for controlling perceived brightness using a time varying shutter

Publications (1)

Publication Number Publication Date
DE69129759D1 true DE69129759D1 (de) 1998-08-13

Family

ID=24518405

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69129759T Expired - Lifetime DE69129759D1 (de) 1990-12-14 1991-08-01 Verfahren und vorrichtung zur steuerung des grades der helligkeitsempfindung mittels einer zeitveränderlichen blende

Country Status (5)

Country Link
US (1) US5276539A (de)
EP (1) EP0611286B1 (de)
AT (1) ATE167993T1 (de)
DE (1) DE69129759D1 (de)
WO (1) WO1992010130A1 (de)

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CN102591023A (zh) * 2011-01-21 2012-07-18 浙江亿思达显示科技有限公司 快门眼镜
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JP5853975B2 (ja) * 2013-03-15 2016-02-09 ソニー株式会社 画像表示装置及び画像表示方法
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Also Published As

Publication number Publication date
EP0611286B1 (de) 1998-07-08
EP0611286A4 (de) 1994-01-06
US5276539A (en) 1994-01-04
WO1992010130A1 (en) 1992-06-25
ATE167993T1 (de) 1998-07-15
EP0611286A1 (de) 1994-08-24

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Legal Events

Date Code Title Description
8332 No legal effect for de