EP4286742A1 - Beleuchtungs- und/oder signalisierungsvorrichtung für kraftfahrzeuge mit einem lichtleiter - Google Patents

Beleuchtungs- und/oder signalisierungsvorrichtung für kraftfahrzeuge mit einem lichtleiter Download PDF

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Publication number
EP4286742A1
EP4286742A1 EP22176412.9A EP22176412A EP4286742A1 EP 4286742 A1 EP4286742 A1 EP 4286742A1 EP 22176412 A EP22176412 A EP 22176412A EP 4286742 A1 EP4286742 A1 EP 4286742A1
Authority
EP
European Patent Office
Prior art keywords
lighting
signaling device
light
light guide
wall
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.)
Pending
Application number
EP22176412.9A
Other languages
English (en)
French (fr)
Inventor
Davide Sammito
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.)
Marelli Automotive Lighting Italy SpA
Original Assignee
Marelli Automotive Lighting Italy SpA
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 Marelli Automotive Lighting Italy SpA filed Critical Marelli Automotive Lighting Italy SpA
Priority to EP22176412.9A priority Critical patent/EP4286742A1/de
Publication of EP4286742A1 publication Critical patent/EP4286742A1/de
Pending legal-status Critical Current

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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
    • F21S43/10—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
    • F21S43/10—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
    • F21S43/15—Strips of light sources
    • 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
    • F21S43/239—Light guides characterised by the shape of the light guide plate-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
    • 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

Definitions

  • the phenomenon is felt even more when the light guide has an overall reduced thickness and a particularly extensive rear wall, i.e., an outcoupling, such as, for example what occurs in the case of long and thin light guide plates or bars.
  • Said at least one light guide 24 is configured to at least partially receive said light rays 18 at an inlet wall 36 thereof (called incoupling), convey the light rays 18 and extract said light rays 18 by means of a rear wall 40 thereof (called outcoupling).
  • said polyline comprises two mutually angled consecutive rectilinear sections 56 which form an angle at the vertex which is greater than 180 degrees, on the side of the LED light source 16.
  • curvilinear sections 56 may be arcs of circle, ellipse, parabola, hyperbole and the like.
  • the skirts of the adjacent inlet wall 36 are inclined and joined to one another at a vertex line.
  • said optics 84 have a height, i.e., a distance between the ridges 88 and the depressions 92, that is the height of the sinusoid, which is less than 1 mm.
  • the light guide 24, at the inlet wall 36 has a pair of transverse appendices 80, on opposite sides with respect to said middle section 52 with polyline geometry, so as to facilitate the position of the light guide 24 in the container body 8.
EP22176412.9A 2022-05-31 2022-05-31 Beleuchtungs- und/oder signalisierungsvorrichtung für kraftfahrzeuge mit einem lichtleiter Pending EP4286742A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP22176412.9A EP4286742A1 (de) 2022-05-31 2022-05-31 Beleuchtungs- und/oder signalisierungsvorrichtung für kraftfahrzeuge mit einem lichtleiter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP22176412.9A EP4286742A1 (de) 2022-05-31 2022-05-31 Beleuchtungs- und/oder signalisierungsvorrichtung für kraftfahrzeuge mit einem lichtleiter

Publications (1)

Publication Number Publication Date
EP4286742A1 true EP4286742A1 (de) 2023-12-06

Family

ID=82656774

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22176412.9A Pending EP4286742A1 (de) 2022-05-31 2022-05-31 Beleuchtungs- und/oder signalisierungsvorrichtung für kraftfahrzeuge mit einem lichtleiter

Country Status (1)

Country Link
EP (1) EP4286742A1 (de)

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4129094A1 (de) * 1991-09-02 1993-03-04 Hella Kg Hueck & Co Signalleuchte fuer kraftfahrzeuge
DE19908961A1 (de) * 1999-03-02 2000-09-07 Valeo Beleuchtung Deutschland Leuchte, insbesondere für Kraftfahrzeuge
US20040207775A1 (en) * 2003-04-16 2004-10-21 Samsung Electronics Co., Ltd. Light guide panel of edge-light type backlight system and edge-light type backlight system employing the same
US20090015753A1 (en) * 2007-07-12 2009-01-15 Wintek Corporation Light guide place and light-diffusing structure thereof
EP2354637A2 (de) * 2010-01-30 2011-08-10 Hella KGaA Hueck & Co. Beleuchtungsvorrichtung für Fahrzeuge
DE102011083328A1 (de) * 2010-09-24 2012-04-26 Wintek Corp. Lichtleitsäule
FR3000569A1 (fr) * 2013-01-03 2014-07-04 Peugeot Citroen Automobiles Sa Dispositif d'eclairage a ecran a bord(s) lumineux
DE102013100557A1 (de) * 2013-01-21 2014-07-24 Hella Kgaa Hueck & Co. Beleuchtungsvorrichtung für Fahrzeuge
US20160084468A1 (en) * 2013-06-11 2016-03-24 Koito Manufacturing Co., Ltd. Vehicular lamp
DE102015115969A1 (de) * 2015-09-22 2017-04-13 Hella Kgaa Hueck & Co. Beleuchtungsvorrichtung für Fahrzeuge
CN104345377B (zh) * 2013-08-01 2017-07-21 扬升照明股份有限公司 导光板与光源模块
EP3712492A1 (de) * 2019-03-22 2020-09-23 Stanley Electric Co., Ltd. Beleuchtungsvorrichtung für fahrzeug siglalleuchte
WO2021037587A1 (en) * 2019-08-28 2021-03-04 Valeo Vision Light-guiding assembly, vehicle lamp, and vehicle

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4129094A1 (de) * 1991-09-02 1993-03-04 Hella Kg Hueck & Co Signalleuchte fuer kraftfahrzeuge
DE19908961A1 (de) * 1999-03-02 2000-09-07 Valeo Beleuchtung Deutschland Leuchte, insbesondere für Kraftfahrzeuge
US20040207775A1 (en) * 2003-04-16 2004-10-21 Samsung Electronics Co., Ltd. Light guide panel of edge-light type backlight system and edge-light type backlight system employing the same
US20090015753A1 (en) * 2007-07-12 2009-01-15 Wintek Corporation Light guide place and light-diffusing structure thereof
EP2354637A2 (de) * 2010-01-30 2011-08-10 Hella KGaA Hueck & Co. Beleuchtungsvorrichtung für Fahrzeuge
DE102011083328A1 (de) * 2010-09-24 2012-04-26 Wintek Corp. Lichtleitsäule
FR3000569A1 (fr) * 2013-01-03 2014-07-04 Peugeot Citroen Automobiles Sa Dispositif d'eclairage a ecran a bord(s) lumineux
DE102013100557A1 (de) * 2013-01-21 2014-07-24 Hella Kgaa Hueck & Co. Beleuchtungsvorrichtung für Fahrzeuge
US20160084468A1 (en) * 2013-06-11 2016-03-24 Koito Manufacturing Co., Ltd. Vehicular lamp
CN104345377B (zh) * 2013-08-01 2017-07-21 扬升照明股份有限公司 导光板与光源模块
DE102015115969A1 (de) * 2015-09-22 2017-04-13 Hella Kgaa Hueck & Co. Beleuchtungsvorrichtung für Fahrzeuge
EP3712492A1 (de) * 2019-03-22 2020-09-23 Stanley Electric Co., Ltd. Beleuchtungsvorrichtung für fahrzeug siglalleuchte
WO2021037587A1 (en) * 2019-08-28 2021-03-04 Valeo Vision Light-guiding assembly, vehicle lamp, and vehicle

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