DE29911944U1 - A light guide for a display device - Google Patents

A light guide for a display device

Info

Publication number
DE29911944U1
DE29911944U1 DE29911944U DE29911944U DE29911944U1 DE 29911944 U1 DE29911944 U1 DE 29911944U1 DE 29911944 U DE29911944 U DE 29911944U DE 29911944 U DE29911944 U DE 29911944U DE 29911944 U1 DE29911944 U1 DE 29911944U1
Authority
DE
Germany
Prior art keywords
light guide
light
guide according
face
broad side
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
DE29911944U
Other languages
German (de)
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.)
Continental Automotive GmbH
Original Assignee
Mannesmann VDO 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 Mannesmann VDO AG filed Critical Mannesmann VDO AG
Priority to DE29911944U priority Critical patent/DE29911944U1/en
Publication of DE29911944U1 publication Critical patent/DE29911944U1/en
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
    • G02B6/004—Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles
    • G02B6/0043—Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles provided on the surface of 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
    • 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
    • G02B6/0075—Arrangements of multiple light guides
    • G02B6/0076—Stacked arrangements of multiple light guides of the same or different cross-sectional area
    • 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
    • G02B6/24—Coupling light guides
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4298—Coupling light guides with opto-electronic elements coupling with non-coherent light sources and/or radiation detectors, e.g. lamps, incandescent bulbs, scintillation chambers
    • 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
    • G02B6/24—Coupling light guides
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4201—Packages, e.g. shape, construction, internal or external details
    • G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
    • G02B6/4214—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms the intermediate optical element having redirecting reflective means, e.g. mirrors, prisms for deflecting the radiation from horizontal to down- or upward direction toward a device

Description

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßtThe description text was not recorded electronically

Claims (8)

1. Zur Beleuchtung einer Anzeigeeinrichtung, insbesondere in einem Kraftfahrzeug, ausgeführter flächiger Lichtleiter, der mittels einer in eine Lichteinkoppelfläche des Lichtleiters einstrahlenden Lichtquelle beleuchtbar ist, dadurch gekenn­ zeichnet, dass die Lichteinkoppelfläche (5, 10, 18, 25) an einer Breitseite (6, 11, 24) des Lichtleiters (2, 9, 14, 19) angeordnet und zur Einkopplung von Lichtstrahlung in einem spitzen Winkel (a) zur Haupterstreckung (B, D) des Lichtleiters (2, 9, 14, 19) ausgeführt ist.1. For illuminating a display device, in particular in a motor vehicle, flat light guide which can be illuminated by means of a light source illuminating a light coupling surface of the light guide, characterized in that the light coupling surface ( 5 , 10 , 18 , 25 ) on a broad side ( 6 , 11 , 24 ) of the light guide ( 2 , 9 , 14 , 19 ) and for coupling light radiation at an acute angle (a) to the main extent (B, D) of the light guide ( 2 , 9 , 14 , 19 ). 2. Lichtleiter nach Anspruch 1, dadurch gekennzeichnet, dass der Lichtleiter (2, 9, 14) eine im wesentlichen rechtwinklige Grundfläche mit einer die Haupterstreckung (B) des Lichtleiters (2, 9, 14) begrenzenden Stirnfläche (4, 12) und mit zumindest einer die Lichteinkoppelfläche (5, 10, 18) aufweisenden Breit­ seite (6, 11) hat.2. Light guide according to claim 1, characterized in that the light guide ( 2 , 9 , 14 ) has a substantially rectangular base with a main extension (B) of the light guide ( 2 , 9 , 14 ) delimiting end face ( 4 , 12 ) and with at least one broad side ( 6 , 11 ) having the light coupling surface ( 5 , 10 , 18 ). 3. Lichtleiter nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Winkel (a) einen Wert in Abhängigkeit von dem Verhält­ nis zwischen der Haupterstreckung (B, D) und der Nebenerstreckung des Lichtleiters (2, 9, 14, 19) aufweist.3. Light guide according to claim 1 or 2, characterized in that the angle (a) has a value depending on the ratio between the main extension (B, D) and the secondary extension of the light guide ( 2 , 9 , 14 , 19 ). 4. Lichtleiter nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Winkel (a) einen Wert zwischen 10° und 50° aufweist. 4. Light guide according to one of the preceding claims, characterized characterized in that the angle (a) has a value between 10 ° and 50 °.   5. Lichtleiter nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Lichtleiter (2, 9, 14, 19) an einer in etwa senkrecht zu der Breitseite (6, 11, 24) und/oder der Stirnfläche (4, 12) angeordneten Flächenseite eine Lichtauskop­ pelfläche (8) aufweist.5. Light guide according to one of the preceding claims, characterized in that the light guide ( 2 , 9 , 14 , 19 ) arranged on an approximately perpendicular to the broad side ( 6 , 11 , 24 ) and / or the end face ( 4 , 12 ) Surface side has a light extraction surface ( 8 ). 6. Lichtleiter nach Anspruch 5, dadurch gekennzeichnet, dass die Lichtauskoppelfläche (8) eine lichtbrechende Strukturflä­ che, insbesondere ein Linsenraster, aufweist.6. Light guide according to claim 5, characterized in that the light decoupling surface ( 8 ) has a light-refractive surface, in particular a lenticular screen. 7. Lichtleiter nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Lichtleiter (19) im wesentlichen scheibenförmig, insbesondere kreisscheibenförmig, ausgeführt und die Lichtauskoppelfläche durch eine Stirnfläche (27) des Lichtleiters (19) gebildet ist.7. Light guide according to one of the preceding claims, characterized in that the light guide ( 19 ) is substantially disc-shaped, in particular circular disc-shaped, and the light decoupling surface is formed by an end face ( 27 ) of the light guide ( 19 ). 8. Lichtleiter nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Lichtleiter (2, 9, 14) zur Hinter­ grundbeleuchtung einer Flüssigkristallanzeige (LCD) ausgeführt ist.8. Light guide according to one of the preceding claims, characterized in that the light guide ( 2 , 9 , 14 ) for background lighting of a liquid crystal display (LCD) is executed.
DE29911944U 1998-11-18 1999-07-08 A light guide for a display device Expired - Lifetime DE29911944U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE29911944U DE29911944U1 (en) 1998-11-18 1999-07-08 A light guide for a display device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19853031 1998-11-18
DE29911944U DE29911944U1 (en) 1998-11-18 1999-07-08 A light guide for a display device

Publications (1)

Publication Number Publication Date
DE29911944U1 true DE29911944U1 (en) 1999-10-07

Family

ID=7888113

Family Applications (2)

Application Number Title Priority Date Filing Date
DE19906129A Expired - Fee Related DE19906129B4 (en) 1998-11-18 1999-02-13 For a display device of certain light guides
DE29911944U Expired - Lifetime DE29911944U1 (en) 1998-11-18 1999-07-08 A light guide for a display device

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE19906129A Expired - Fee Related DE19906129B4 (en) 1998-11-18 1999-02-13 For a display device of certain light guides

Country Status (1)

Country Link
DE (2) DE19906129B4 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005036018A1 (en) * 2005-08-01 2007-02-08 Volkswagen Ag Illumination device for vehicle comprises light-conducting unit with two separate light coupling surfaces for feeding light emission of first light source to first coupling surface and second light source to second coupling surface

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10107153B4 (en) * 2001-01-17 2005-12-15 Rudolf Zimmermann Gmbh + Co. Kg Flat escape sign luminaire with a substantially square display window
DE102010056282A1 (en) * 2010-12-24 2012-06-28 Volkswagen Aktiengesellschaft Automotive display device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005036018A1 (en) * 2005-08-01 2007-02-08 Volkswagen Ag Illumination device for vehicle comprises light-conducting unit with two separate light coupling surfaces for feeding light emission of first light source to first coupling surface and second light source to second coupling surface

Also Published As

Publication number Publication date
DE19906129A1 (en) 2000-05-31
DE19906129B4 (en) 2006-04-06

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Legal Events

Date Code Title Description
R207 Utility model specification

Effective date: 19991111

R081 Change of applicant/patentee

Owner name: CONTINENTAL AUTOMOTIVE GMBH, DE

Free format text: FORMER OWNER: MANNESMANN VDO AG, 60388 FRANKFURT, DE

Effective date: 20020311

R150 Term of protection extended to 6 years

Effective date: 20021128

R151 Term of protection extended to 8 years

Effective date: 20051011

R152 Term of protection extended to 10 years

Effective date: 20071002

R081 Change of applicant/patentee

Owner name: CONTINENTAL AUTOMOTIVE GMBH, DE

Free format text: FORMER OWNER: SIEMENS AKTIENGESELLSCHAFT, 80333 MUENCHEN, DE

Effective date: 20080731

R071 Expiry of right