ES2097445T3 - Dispositivos luminosos de capas multiples ahusados. - Google Patents

Dispositivos luminosos de capas multiples ahusados.

Info

Publication number
ES2097445T3
ES2097445T3 ES93302159T ES93302159T ES2097445T3 ES 2097445 T3 ES2097445 T3 ES 2097445T3 ES 93302159 T ES93302159 T ES 93302159T ES 93302159 T ES93302159 T ES 93302159T ES 2097445 T3 ES2097445 T3 ES 2097445T3
Authority
ES
Spain
Prior art keywords
layer
index
light
refraction
lighting devices
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
ES93302159T
Other languages
English (en)
Inventor
Benjamin E Jacobsen
Roland Winston
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
Application filed by Minnesota Mining and Manufacturing Co filed Critical Minnesota Mining and Manufacturing Co
Application granted granted Critical
Publication of ES2097445T3 publication Critical patent/ES2097445T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/0045—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide
    • G02B6/0046—Tapered light guide, e.g. wedge-shaped light guide
    • 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
    • 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
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
    • 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
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/04—Signs, boards or panels, illuminated from behind the insignia
    • G09F13/0409—Arrangements for homogeneous illumination of the display surface, e.g. using a layer having a non-uniform transparency
    • 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
    • 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
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
    • G02B6/0053—Prismatic sheet or layer; Brightness enhancement element, sheet or layer
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/04—Signs, boards or panels, illuminated from behind the insignia
    • G09F13/0418—Constructional details
    • G09F2013/05—Constructional details indicating exit way or orientation
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/18—Edge-illuminated signs
    • G09F2013/1804—Achieving homogeneous illumination
    • G09F2013/1827—Prismatic window
    • 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
    • Y10S385/00—Optical waveguides
    • Y10S385/901—Illuminating or display apparatus

Abstract

SE DESCRIBE UN DISPOSITIVO (10) OPTICO PARA LA RECOLECCION DE LUZ Y LA PRODUCCION SELECTIVA O CONCENTRACION DE LA LUZ. UNA CAPA (12) TIENE UN INDICE OPTICO DE REFRACCION N1, Y PARTE SUPERIOR (14), FONDO (16) Y SUPERFICIES LATERALES DE INTERSECCION PARA DEFINIR UN ANGULO DE INCLINACION. UNA SUPERFICIE (20) ATRAVIESA LA PARTE SUPERIOR, EL FONDO Y LA SUPERFICIES LATERALES. UNA PRIMERA CAPA (28) ESTA ACOPLADA A LA SUPERFICIE (16) DEL FONDO DE LA CAPA Y DISPONE DE UN INDICE DE REFRACCION N2. EL INDICE N2 DE LA PRIMERA CAPA ORIGINA LA ENTRADA DE LUZ A TRAVES DE LA SUPERFICIE (20) POSTERIOR DE LA CAPA (12) PARA SER PREFERENTEMENTE PRODUCIDA DENTRO DE LA PRIMERA CAPA (28). UNA SEGUNDA CAPA (30) ESTA ACOPLADA AL FONDO DE LA PRIMERA CAPA (28) Y ORIGINA DE FORMA SELECTIVA LA SALIDA DE LA LUZ AL AMBIENTE. LA CAPA PUEDE TENER TAMBIEN UN INDICE VARIABLE DE REFRACCION N (X, Y, Z).
ES93302159T 1992-03-23 1993-03-22 Dispositivos luminosos de capas multiples ahusados. Expired - Lifetime ES2097445T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/855,838 US5237641A (en) 1992-03-23 1992-03-23 Tapered multilayer luminaire devices

Publications (1)

Publication Number Publication Date
ES2097445T3 true ES2097445T3 (es) 1997-04-01

Family

ID=25322204

Family Applications (1)

Application Number Title Priority Date Filing Date
ES93302159T Expired - Lifetime ES2097445T3 (es) 1992-03-23 1993-03-22 Dispositivos luminosos de capas multiples ahusados.

Country Status (9)

Country Link
US (1) US5237641A (es)
EP (1) EP0562802B1 (es)
JP (1) JP2916063B2 (es)
AT (1) ATE145464T1 (es)
AU (1) AU3815093A (es)
DE (1) DE69306022T2 (es)
ES (1) ES2097445T3 (es)
TW (1) TW319352U (es)
WO (1) WO1993019390A1 (es)

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US5237641A (en) 1993-08-17
AU3815093A (en) 1993-10-21
DE69306022D1 (de) 1997-01-02
EP0562802B1 (en) 1996-11-20
ATE145464T1 (de) 1996-12-15
DE69306022T2 (de) 1997-03-13
EP0562802A1 (en) 1993-09-29
TW319352U (en) 1997-11-01
JPH0643325A (ja) 1994-02-18
WO1993019390A1 (en) 1993-09-30
JP2916063B2 (ja) 1999-07-05

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