DE69515730D1 - Lichtdämpfungsblatt - Google Patents

Lichtdämpfungsblatt

Info

Publication number
DE69515730D1
DE69515730D1 DE69515730T DE69515730T DE69515730D1 DE 69515730 D1 DE69515730 D1 DE 69515730D1 DE 69515730 T DE69515730 T DE 69515730T DE 69515730 T DE69515730 T DE 69515730T DE 69515730 D1 DE69515730 D1 DE 69515730D1
Authority
DE
Germany
Prior art keywords
light attenuation
attenuation sheet
sheet
light
attenuation
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
DE69515730T
Other languages
English (en)
Inventor
Douglas A Hanson
Timothy D Stacy
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.)
Vari Lite Inc
Original Assignee
Vari Lite 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 Vari Lite Inc filed Critical Vari Lite Inc
Application granted granted Critical
Publication of DE69515730D1 publication Critical patent/DE69515730D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • F21V11/00—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00
    • F21V11/16—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using sheets without apertures, e.g. fixed
    • F21V11/18—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using sheets without apertures, e.g. fixed movable, e.g. flaps, slides
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Blinds (AREA)
DE69515730T 1994-06-15 1995-06-15 Lichtdämpfungsblatt Expired - Lifetime DE69515730D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/259,998 US5590954A (en) 1994-06-15 1994-06-15 Dimmer blade

Publications (1)

Publication Number Publication Date
DE69515730D1 true DE69515730D1 (de) 2000-04-27

Family

ID=22987393

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69515730T Expired - Lifetime DE69515730D1 (de) 1994-06-15 1995-06-15 Lichtdämpfungsblatt

Country Status (7)

Country Link
US (1) US5590954A (de)
EP (1) EP0687852B1 (de)
JP (1) JPH08180703A (de)
KR (1) KR960001587A (de)
AU (1) AU703868B2 (de)
CA (1) CA2151775C (de)
DE (1) DE69515730D1 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2778659B2 (ja) 1993-12-24 1998-07-23 キヤノン株式会社 導光体及び照明装置及び画像読取装置
ATE194217T1 (de) * 1996-12-23 2000-07-15 Klaus Welm Blendenelement
US5904417A (en) * 1997-08-04 1999-05-18 Buhl Electric, Inc. Light fixture with elliptical reflector and mechanical shutter dimmer
ITMI981181A1 (it) * 1998-05-28 1999-11-28 Clay Paky Spa Diffusore ottico e dispositivo di illuminazione provvisto dello stesso
US7556402B2 (en) * 2004-03-29 2009-07-07 Cooper Technologies Company Direct-indirect luminaire with shutter
US7845833B2 (en) * 2007-04-12 2010-12-07 Wybron, Inc. Light dimmer and associated methodology
EP3457023B1 (de) * 2017-09-13 2020-03-04 Harman Professional Denmark ApS Farbfilterpaar mit kammartigen filtereigenschaften mit nicht-parallelen zähnen

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1591211A (en) * 1926-02-15 1926-07-06 Joseph W Brenkert Illuminating apparatus
US3016454A (en) * 1958-07-23 1962-01-09 Philip W Simms Light dimming attachment
US3333094A (en) 1964-12-14 1967-07-25 John F Steel Means for removing glare of a light beam
US4392187A (en) 1981-03-02 1983-07-05 Vari-Lite, Ltd. Computer controlled lighting system having automatically variable position, color, intensity and beam divergence
CH650868A5 (de) * 1981-06-05 1985-08-15 Volpi Ag Vorrichtung zum beleuchten eines hohlraums.
EP0112397A1 (de) * 1982-12-17 1984-07-04 Ichikoh Industries Limited Fahrzeugscheinwerfer
EP0215943A1 (de) * 1985-03-27 1987-04-01 Lumenyte Corporation Lichtquelle hoher lichtstärke für beleuchtungssystem mit optischen fasern
US4779176A (en) 1986-07-16 1988-10-18 Vari-Lite, Inc. Light pattern generator
CH681394A5 (de) * 1990-12-18 1993-03-15 Volpi Ag

Also Published As

Publication number Publication date
EP0687852B1 (de) 2000-03-22
EP0687852A1 (de) 1995-12-20
AU703868B2 (en) 1999-04-01
CA2151775C (en) 1998-09-22
CA2151775A1 (en) 1995-12-16
KR960001587A (ko) 1996-01-25
AU2170395A (en) 1995-12-21
US5590954A (en) 1997-01-07
JPH08180703A (ja) 1996-07-12

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Legal Events

Date Code Title Description
8332 No legal effect for de