FI923632A - REGLERING AV LJUSSTYRKA. - Google Patents

REGLERING AV LJUSSTYRKA. Download PDF

Info

Publication number
FI923632A
FI923632A FI923632A FI923632A FI923632A FI 923632 A FI923632 A FI 923632A FI 923632 A FI923632 A FI 923632A FI 923632 A FI923632 A FI 923632A FI 923632 A FI923632 A FI 923632A
Authority
FI
Finland
Prior art keywords
ljusstyrka
reglering
Prior art date
Application number
FI923632A
Other languages
Finnish (fi)
Other versions
FI923632A0 (en
Inventor
Albert Frischknecht
Original Assignee
Volpi 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 Volpi Ag filed Critical Volpi Ag
Publication of FI923632A publication Critical patent/FI923632A/en
Publication of FI923632A0 publication Critical patent/FI923632A0/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/10—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void
    • G01J1/20—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void intensity of the measured or reference value being varied to equalise their effects at the detectors, e.g. by varying incidence angle
    • G01J1/22—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void intensity of the measured or reference value being varied to equalise their effects at the detectors, e.g. by varying incidence angle using a variable element in the light-path, e.g. filter, polarising means
    • G01J1/24—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void intensity of the measured or reference value being varied to equalise their effects at the detectors, e.g. by varying incidence angle using a variable element in the light-path, e.g. filter, polarising means using electric radiation detectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
    • F21V9/40—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters with provision for controlling spectral properties, e.g. colour, or intensity
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/005—Diaphragms
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
FI923632A 1990-12-18 1992-08-14 REGLERING AV LJUSSTYRKA. FI923632A0 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH4003/90A CH681394A5 (en) 1990-12-18 1990-12-18
PCT/CH1991/000230 WO1992011548A1 (en) 1990-12-18 1991-11-13 Luminance regulation

Publications (2)

Publication Number Publication Date
FI923632A true FI923632A (en) 1992-08-14
FI923632A0 FI923632A0 (en) 1992-08-14

Family

ID=4267995

Family Applications (1)

Application Number Title Priority Date Filing Date
FI923632A FI923632A0 (en) 1990-12-18 1992-08-14 REGLERING AV LJUSSTYRKA.

Country Status (6)

Country Link
EP (1) EP0529006A1 (en)
JP (1) JPH05504847A (en)
CA (1) CA2075990A1 (en)
CH (1) CH681394A5 (en)
FI (1) FI923632A0 (en)
WO (1) WO1992011548A1 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5590954A (en) * 1994-06-15 1997-01-07 Vari-Lite, Inc. Dimmer blade
US5658070A (en) * 1994-10-27 1997-08-19 Alcon Laboratories, Inc. Method of varying luminous intensity of light in an illumination system
DE19510691A1 (en) * 1995-03-14 1996-09-19 Joachim Maass Brightness shutter for image projectors
DE10016361B4 (en) * 2000-04-03 2010-08-26 Leica Microsystems Cms Gmbh Optical arrangement
JP4590095B2 (en) * 2000-12-07 2010-12-01 オリンパス株式会社 Light source device
DE10255603A1 (en) * 2002-11-28 2004-06-17 Carl Zeiss Jena Gmbh Projector for presentation of images with light modulator generating image, containing reflective, energisable, image generating region and illumination optics with light source
JP4664129B2 (en) * 2005-06-17 2011-04-06 浜松ホトニクス株式会社 Spot light source device
US7671543B2 (en) * 2007-01-23 2010-03-02 Dymax Corporation Light exposure control device and apparatus
US7499624B2 (en) 2007-03-16 2009-03-03 Alcon, Inc. Ophthalmic Endoilluminator with Variable-Wedge Rotating-Disk Beam Attenuator
US7444057B2 (en) 2007-03-16 2008-10-28 Alcon, Inc. Variable-wedge rotating-disk beam attenuator for ophthalmic endoilluminator
JP2016090625A (en) * 2014-10-30 2016-05-23 ホロニクス・インターナショナル株式会社 Light source device for hardening resin
CN111352231B (en) * 2018-12-24 2021-10-22 上海微电子装备（集团）股份有限公司 Transmittance adjusting device

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE690378C (en) * 1935-06-04 1940-04-24 Paul Gossen Arrangement for the gradual screening of a radiation-sensitive material
DE2246270A1 (en) * 1971-09-23 1973-03-29 Ferranti Ltd DEVICE FOR FORMATION OF AN OPTICAL OPENING WITH VARIABLE AREA
US3975099A (en) * 1975-06-16 1976-08-17 Perkin-Elmer Limited Optical null apparatus
DE2701764A1 (en) * 1977-01-18 1978-07-20 Leitz Ernst Gmbh LIGHT FLOW REGULATOR
GB1551519A (en) * 1977-03-31 1979-08-30 English Electric Valve Co Ltd Radiation shutters
DE2745397A1 (en) * 1977-10-08 1979-04-19 Leitz Ernst Gmbh LIGHT CONTROLLER FOR LIGHT GUIDE LUMINAIRES
EP0075044A1 (en) * 1981-09-19 1983-03-30 Elesta Ag Elektronik Aid for measuring the surplus of light in light barriers
DE3339522A1 (en) * 1983-11-02 1985-05-09 Faseroptik Henning GmbH & Co, 8501 Allersberg Stabilised cold-light source
DE8802996U1 (en) * 1988-02-04 1988-06-09 Ernst Leitz Wetzlar Gmbh, 6330 Wetzlar, De
US4914556A (en) * 1988-07-26 1990-04-03 Morpheus Lights, Inc. Spectral filter module

Also Published As

Publication number Publication date
CH681394A5 (en) 1993-03-15
WO1992011548A1 (en) 1992-07-09
EP0529006A1 (en) 1993-03-03
CA2075990A1 (en) 1992-06-19
FI923632A0 (en) 1992-08-14
JPH05504847A (en) 1993-07-22

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Legal Events

Date Code Title Description
FD Application lapsed