EP1170545A3 - Rod-shaped light guide - Google Patents

Rod-shaped light guide Download PDF

Info

Publication number
EP1170545A3
EP1170545A3 EP01116157A EP01116157A EP1170545A3 EP 1170545 A3 EP1170545 A3 EP 1170545A3 EP 01116157 A EP01116157 A EP 01116157A EP 01116157 A EP01116157 A EP 01116157A EP 1170545 A3 EP1170545 A3 EP 1170545A3
Authority
EP
European Patent Office
Prior art keywords
light
longitudinal axis
rod
exit surface
light exit
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.)
Granted
Application number
EP01116157A
Other languages
German (de)
French (fr)
Other versions
EP1170545A2 (en
EP1170545B1 (en
Inventor
Cornelius Neumann
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.)
Hella GmbH and Co KGaA
Original Assignee
Hella KGaA Huek and 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 Hella KGaA Huek and Co filed Critical Hella KGaA Huek and Co
Publication of EP1170545A2 publication Critical patent/EP1170545A2/en
Publication of EP1170545A3 publication Critical patent/EP1170545A3/en
Application granted granted Critical
Publication of EP1170545B1 publication Critical patent/EP1170545B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/235—Light guides
    • F21S43/249—Light guides with two or more light sources being coupled into the light guide
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
    • F21S43/13—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source characterised by the type of light source
    • F21S43/14—Light emitting diodes [LED]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/235—Light guides
    • F21S43/236—Light guides characterised by the shape of the light guide
    • F21S43/237—Light guides characterised by the shape of the light guide rod-shaped
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/235—Light guides
    • F21S43/242—Light guides characterised by the emission area
    • F21S43/245—Light guides characterised by the emission area emitting light from one or more of its major surfaces

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Planar Illumination Modules (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

Stabförmiger Lichtleiter, insbesondere für eine Signalleuchte für Kraftfahrzeuge, bestehend aus einem Stabkörper (1) mit mindestens einer Lichteinkoppelfläche (2,3) und einer in Richtung einer Längsachse (8) angeordneten, quer zur Längsachse (8) abstrahlenden Lichtaustrittsfläche (5), einer der Lichtaustrittsfläche (5) gegenüberliegenden reflektierenden Fläche (4) mit lichtablenkenden Mitteln (14), die über die Lichteinkoppelfläche eingekoppeltes Licht über die Lichtaustrittsfläche (5) abstrahlen, und mit zwei einander gegenüberliegenden Seitenflächen (6,7), die die Lichtaustrittsfläche (5) und die reflektierende Fläche (4) miteinander verbinden, wobei die Seitenflächen (6,7) im quer zur Längsachse (8) angeordneten Querschnitt des Stabkörpers (1) mindestens zwei lichtkonzentrierende Punkte (15,17) bilden, so dass parallel zur Längsachse (8) nichtzentrische Brennlinien (19,20) entstehen, auf denen die lichtkonzentrierenden Punkte (15,17) der zugehörigen Seitenflächen (6,7) angeordnet sind.

Figure 00000001
Rod-shaped light guide, in particular for a signal lamp for motor vehicles, comprising a rod body (1) with at least one light coupling surface (2, 3) and a light exit surface (5) arranged in the direction of a longitudinal axis (8) and emitting transversely to the longitudinal axis (8) the reflecting surface (4) opposite the light exit surface (5) with light deflecting means (14) which emit light coupled in via the light coupling surface via the light exit surface (5), and with two mutually opposite side surfaces (6, 7) which cover the light exit surface (5) and connect the reflecting surface (4) to one another, the side surfaces (6, 7) forming at least two light-concentrating points (15, 17) in the cross section of the rod body (1) arranged transversely to the longitudinal axis (8), so that parallel to the longitudinal axis (8 ) non-centric focal lines (19, 20) arise on which the light-concentrating points (15, 17) of the associated side fl Chen (6,7) are arranged.
Figure 00000001
EP01116157A 2000-07-07 2001-07-04 Rod-shaped light guide Expired - Lifetime EP1170545B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10033133 2000-07-07
DE10033133A DE10033133A1 (en) 2000-07-07 2000-07-07 Rod-shaped light guide

Publications (3)

Publication Number Publication Date
EP1170545A2 EP1170545A2 (en) 2002-01-09
EP1170545A3 true EP1170545A3 (en) 2003-03-05
EP1170545B1 EP1170545B1 (en) 2004-10-06

Family

ID=7648181

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01116157A Expired - Lifetime EP1170545B1 (en) 2000-07-07 2001-07-04 Rod-shaped light guide

Country Status (3)

Country Link
EP (1) EP1170545B1 (en)
DE (2) DE10033133A1 (en)
ES (1) ES2228703T3 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005047793A1 (en) * 2005-10-05 2007-04-12 Hella Kgaa Hueck & Co. Motor vehicle lamp has light guide with rear light deflecting section having parabolic faces
US7695179B2 (en) 2007-03-16 2010-04-13 Visteon Global Technologies, Inc. Illuminating device
DE102007023076B4 (en) 2007-05-16 2012-02-16 Automotive Lighting Reutlingen Gmbh Lighting device for motor vehicles
US7639918B2 (en) 2008-05-05 2009-12-29 Visteon Global Technologies, Inc. Manifold-type lightguide with reduced thickness
US8333493B2 (en) 2009-04-03 2012-12-18 North American Lighting, Inc. Dual-direction light pipe for automotive lighting
GB2543246B (en) 2015-07-29 2021-01-13 Karbon Kinetics Ltd Handlebar mountable light pipe apparatus for a bicycle
US10838137B2 (en) 2017-08-29 2020-11-17 Varroc Lighting Systems, s.r.o. Lighting device with high efficiency and uniformity

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4924357A (en) * 1985-12-17 1990-05-08 Japan As Represented By Director General Of Agency Of Industrial Science And Technology Light source unit for a business machine
DE4117278A1 (en) * 1991-05-27 1992-12-03 Hella Kg Hueck & Co INTERIOR LIGHT FOR MOTOR VEHICLES
EP0800036A1 (en) * 1996-04-04 1997-10-08 Hitachi Cable, Ltd. Lighting system
DE19803518A1 (en) * 1998-01-30 1999-08-05 Hella Kg Hueck & Co Rod-shaped light guide
US5987199A (en) * 1996-01-19 1999-11-16 Lumenyte International Corporation Side lighting optical conduit

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4129094B4 (en) * 1991-09-02 2005-08-25 Hella Kgaa Hueck & Co. Signal light with LEDs as a light source for motor vehicles and their use for different signal light functions
US5339382A (en) * 1993-02-23 1994-08-16 Minnesota Mining And Manufacturing Company Prism light guide luminaire with efficient directional output
DE19740265A1 (en) * 1997-09-12 1999-03-18 Willing Gmbh Dr Ing Laterally radiating light conductor, e.g. for back lighting of strips for color coding, identifying elements, graphics and images
DE19857561A1 (en) * 1998-12-14 2000-06-21 Valeo Beleuchtung Deutschland Vehicle light includes light guide rod, luminous diodes, and light inlet surface and opposite end surface formed as light deflecting region

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4924357A (en) * 1985-12-17 1990-05-08 Japan As Represented By Director General Of Agency Of Industrial Science And Technology Light source unit for a business machine
DE4117278A1 (en) * 1991-05-27 1992-12-03 Hella Kg Hueck & Co INTERIOR LIGHT FOR MOTOR VEHICLES
US5987199A (en) * 1996-01-19 1999-11-16 Lumenyte International Corporation Side lighting optical conduit
EP0800036A1 (en) * 1996-04-04 1997-10-08 Hitachi Cable, Ltd. Lighting system
DE19803518A1 (en) * 1998-01-30 1999-08-05 Hella Kg Hueck & Co Rod-shaped light guide

Also Published As

Publication number Publication date
ES2228703T3 (en) 2005-04-16
DE50103947D1 (en) 2004-11-11
EP1170545A2 (en) 2002-01-09
DE10033133A1 (en) 2002-01-17
EP1170545B1 (en) 2004-10-06

Similar Documents

Publication Publication Date Title
DE102013104174B4 (en) Lighting device for vehicles with an elongate light guide which is illuminated in a locally variable manner in its longitudinal direction via its curved diffusing surface
EP2857740B1 (en) Motor vehicle lighting device
EP1886871A1 (en) Signal lamp for vehicles
DE102010046342B4 (en) Lighting device and vehicle with a lighting device
DE112008000179B4 (en) Segmented optical device
DE102007013082A1 (en) Signal light i.e. elevated brake light, for motor vehicle, has elongated reflection section including set of reflection elements and provided at rear side for deflecting coupled light in main radiation direction
EP1826475A1 (en) Flat lighting assembly with LED und light guide
DE10250383B4 (en) Light-emitting diode arrangement with reflector
DE102011001769A1 (en) Lamp e.g. headlamp for vehicle, has light conductor whose coupling surfaces couple light emitted from LED with respect to light from reflector, so that optical axis of LED is oriented parallel to main beam direction of light
EP0933587A3 (en) Rod-shaped light guide
DE10311317A1 (en) Lighting device for vehicle, e.g. flashing light in external mirror, has several output coupling structures arranged on surface of light conductor to lie essentially at reflector surfaces focal point
DE102012112076A1 (en) Lighting device for vehicles, has multiple light sources for generating different light functions and light conducting body comprising light conducting segment with deflection surface, at which light beam is totally reflectable
EP1898147A1 (en) Lighting device for vehicle
DE19809716A1 (en) Illumination device for area in front of automobile passenger door
EP1170545A3 (en) Rod-shaped light guide
DE102009023916A1 (en) Light for vehicle, has external section formed such that light bundle is radiated for production of signal light functions acting sideways under total reflection at surfaces, where another bundle is radiated from lens section
EP2500753A1 (en) Optical fibre with decoupling elements which decouple light directly
DE19904644B4 (en) Lamp for vehicles
DE10231325A1 (en) Lighting device for vehicles
EP1154198A3 (en) Rod-shaped light guide
DE102012112066B4 (en) Maneuvering light for a side mirror of a vehicle with a light-conducting body
DE102006008199A1 (en) Illumination unit e.g. signal lamp, for vehicle, has deflection areas whose outer surfaces are formed so that light is uncoupled in common lateral preferred direction, which forms pointed angle to main radiation direction of light source
DE102007018988A1 (en) Headlights for vehicles
DE102019103046A1 (en) Lighting device for vehicles
DE202004010853U1 (en) Lighting device for the interior of a motor vehicle

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Extension state: AL LT LV MK RO SI

RIC1 Information provided on ipc code assigned before grant

Ipc: 7F 21W 101:14 Z

Ipc: 7F 21W 101:12 Z

Ipc: 7F 21V 8/00 B

Ipc: 7F 21S 8/10 A

17P Request for examination filed

Effective date: 20030902

AKX Designation fees paid

Designated state(s): DE ES FR IT

17Q First examination report despatched

Effective date: 20031210

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE ES FR IT

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: GERMAN

REF Corresponds to:

Ref document number: 50103947

Country of ref document: DE

Date of ref document: 20041111

Kind code of ref document: P

RAP2 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: HELLA KGAA HUECK & CO.

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2228703

Country of ref document: ES

Kind code of ref document: T3

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

ET Fr: translation filed
26N No opposition filed

Effective date: 20050707

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20080821

Year of fee payment: 8

Ref country code: DE

Payment date: 20080711

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20080730

Year of fee payment: 8

Ref country code: FR

Payment date: 20080718

Year of fee payment: 8

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20100331

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090731

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100202

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20090706

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090706

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090704