MX173611B - Canal de luz con facetas - Google Patents

Canal de luz con facetas

Info

Publication number
MX173611B
MX173611B MX9100799A MX9100799A MX173611B MX 173611 B MX173611 B MX 173611B MX 9100799 A MX9100799 A MX 9100799A MX 9100799 A MX9100799 A MX 9100799A MX 173611 B MX173611 B MX 173611B
Authority
MX
Mexico
Prior art keywords
light pipe
light
front surface
back surface
facets
Prior art date
Application number
MX9100799A
Other languages
English (en)
Inventor
Gaylon R Kornfuehrer
Kevin J Hathaway
Richard M Knox Jr
Douglas A Arego
Original Assignee
Compaq Computer Corp
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 Compaq Computer Corp filed Critical Compaq Computer Corp
Publication of MX173611B publication Critical patent/MX173611B/es

Links

Classifications

    • 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
    • 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
    • G02B6/0048—Tapered light guide, e.g. wedge-shaped light guide with stepwise taper
    • 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
    • F21V7/00—Reflectors for light sources
    • 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
    • G02B6/0055—Reflecting element, sheet or layer
    • 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
    • G02B6/0066—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 characterised by the light source being coupled to the light guide
    • 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
    • G02B6/0051—Diffusing sheet or layer
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Liquid Crystal (AREA)
  • Planar Illumination Modules (AREA)
  • Laser Surgery Devices (AREA)
  • Light Guides In General And Applications Therefor (AREA)
  • Liquid Crystal Substances (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Manufacture, Treatment Of Glass Fibers (AREA)

Abstract

La presente invención se refiere a un sistema para iluminación a contraluz de un exhibidor de cristal líquido que comprende: un canal de luz que tiene una superficie frontal generalmente plana para proporcionar luz al exhibidor de cristal líquido que tiene una superficie posterior con facetas en donde la superficie posterior incluye una pluralidad de porciones generalmente planas paralelas a la superficie frontal, y una pliuralidad de facetas formadas a un ángulo con respecto a la superficie frontal y que se colocan a manera de concectarse con las porciones paralelas de la superficie posterior y que tiene por lo menos una superficie de extremo para recibir la luz que va a ser transmitida a través de la superficie frontal; una fuente luminosa colocada adyacente a cada superficie de extremo para recibir la luz del canal de luz para proporcionar luz al canal de luz; y un medio reflector colocado adyacente y generalmente paralelo a la superficie posterior del canal de luz para reflejar la luz de nuevo a través del canal de luz.
MX9100799A 1990-09-27 1991-08-23 Canal de luz con facetas MX173611B (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/589,325 US5050946A (en) 1990-09-27 1990-09-27 Faceted light pipe

Publications (1)

Publication Number Publication Date
MX173611B true MX173611B (es) 1994-03-17

Family

ID=24357544

Family Applications (1)

Application Number Title Priority Date Filing Date
MX9100799A MX173611B (es) 1990-09-27 1991-08-23 Canal de luz con facetas

Country Status (11)

Country Link
US (1) US5050946A (es)
EP (1) EP0478102B1 (es)
JP (1) JPH04234729A (es)
KR (1) KR920006895A (es)
AT (1) ATE145288T1 (es)
AU (1) AU646061B2 (es)
BR (1) BR9104149A (es)
CA (1) CA2035301A1 (es)
DE (1) DE69123117D1 (es)
IL (1) IL99091A0 (es)
MX (1) MX173611B (es)

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US5050946A (en) 1991-09-24
JPH04234729A (ja) 1992-08-24
IL99091A0 (en) 1992-07-15
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ATE145288T1 (de) 1996-11-15
EP0478102A3 (en) 1992-09-16
AU646061B2 (en) 1994-02-03
CA2035301A1 (en) 1992-03-28
EP0478102A2 (en) 1992-04-01
KR920006895A (ko) 1992-04-28
AU8165691A (en) 1992-04-02
DE69123117D1 (de) 1996-12-19

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