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ES2047031T3 - Aparato de iluminacion que suministra una salida de luz normalizada. - Google Patents

Aparato de iluminacion que suministra una salida de luz normalizada.

Info

Publication number
ES2047031T3
ES2047031T3 ES88304732T ES88304732T ES2047031T3 ES 2047031 T3 ES2047031 T3 ES 2047031T3 ES 88304732 T ES88304732 T ES 88304732T ES 88304732 T ES88304732 T ES 88304732T ES 2047031 T3 ES2047031 T3 ES 2047031T3
Authority
ES
Spain
Prior art keywords
provides
lighting device
light output
standard light
optical cavity
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
ES88304732T
Other languages
English (en)
Inventor
John F Jr C O Minnesota Dreyer
Neal T C O Minnesota Mi Strand
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.)
3M Co
Original Assignee
Minnesota Mining and Manufacturing Co
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=21986959&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ES2047031(T3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Minnesota Mining and Manufacturing Co filed Critical Minnesota Mining and Manufacturing Co
Application granted granted Critical
Publication of ES2047031T3 publication Critical patent/ES2047031T3/es
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
    • F21V5/00—Refractors for light sources
    • F21V5/02—Refractors for light sources of prismatic shape
    • 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
    • F21V3/00—Globes; Bowls; Cover glasses
    • 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
    • F21V5/00—Refractors for light sources
    • F21V5/002—Refractors for light sources using microoptical elements for redirecting or diffusing light
    • F21V5/005—Refractors for light sources using microoptical elements for redirecting or diffusing light using microprisms
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/132—Overhead projectors, i.e. capable of projecting hand-writing or drawing during action
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Planar Illumination Modules (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)

Abstract

APLIQUE LUMINOSO QUE PROPORCIONA UNA EMISION NORMALIZADA. UNA FUENTE LUMINOSA INDIRECTA ESTA SITUADA EN UNA CAVIDAD OPTICA DOTADA DE UNA VENTANA. UNA PELICULA CON UNA SUPERFICIE LISA Y OTRA ESTRUCTURADA SE COLOCA EN LA VENTANA OPTICA, CONLA SUPERFICIE LISA FRENTE A LA PARTE INTERIOR DE LA CAVIDAD OPTICA. LA SUPERFICIE ESTRUCTURADA TIENE PRISMAS TRIANGULARES.
ES88304732T 1987-05-26 1988-05-25 Aparato de iluminacion que suministra una salida de luz normalizada. Expired - Lifetime ES2047031T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/053,848 US4791540A (en) 1987-05-26 1987-05-26 Light fixture providing normalized output

Publications (1)

Publication Number Publication Date
ES2047031T3 true ES2047031T3 (es) 1994-02-16

Family

ID=21986959

Family Applications (1)

Application Number Title Priority Date Filing Date
ES88304732T Expired - Lifetime ES2047031T3 (es) 1987-05-26 1988-05-25 Aparato de iluminacion que suministra una salida de luz normalizada.

Country Status (8)

Country Link
US (1) US4791540A (es)
EP (1) EP0293182B1 (es)
JP (1) JP2723251B2 (es)
KR (1) KR0127478B1 (es)
AU (1) AU612652B2 (es)
CA (1) CA1316161C (es)
DE (1) DE3886261T2 (es)
ES (1) ES2047031T3 (es)

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US4059755A (en) * 1975-12-29 1977-11-22 Armstrong Cork Company Luminaire lens insert
US4223651A (en) * 1979-02-06 1980-09-23 Colt Industries Operating Corp Solenoid vacuum control valve means and apparatus and system for controlling the air-fuel ratio supplied to a combustion engine
US4460942A (en) * 1983-06-13 1984-07-17 Polaroid Corporation Electronic flash with flashtube retention strap
JPH0245922Y2 (es) * 1984-09-13 1990-12-05
US4791540A (en) 1987-05-26 1988-12-13 Minnesota Mining And Manufacturing Company Light fixture providing normalized output

Also Published As

Publication number Publication date
CA1316161C (en) 1993-04-13
DE3886261T2 (de) 1994-07-21
EP0293182A3 (en) 1989-07-19
DE3886261D1 (de) 1994-01-27
AU612652B2 (en) 1991-07-18
EP0293182B1 (en) 1993-12-15
AU1659188A (en) 1988-12-01
KR0127478B1 (ko) 1998-04-01
US4791540A (en) 1988-12-13
JP2723251B2 (ja) 1998-03-09
KR880014306A (ko) 1988-12-23
EP0293182A2 (en) 1988-11-30
JPS63318003A (ja) 1988-12-26

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