EP1286108A2 - Projecteur pour véhicule - Google Patents

Projecteur pour véhicule Download PDF

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Publication number
EP1286108A2
EP1286108A2 EP02016044A EP02016044A EP1286108A2 EP 1286108 A2 EP1286108 A2 EP 1286108A2 EP 02016044 A EP02016044 A EP 02016044A EP 02016044 A EP02016044 A EP 02016044A EP 1286108 A2 EP1286108 A2 EP 1286108A2
Authority
EP
European Patent Office
Prior art keywords
reflector
lens
diaphragm
vehicle headlight
aperture
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.)
Withdrawn
Application number
EP02016044A
Other languages
German (de)
English (en)
Other versions
EP1286108A3 (fr
Inventor
Karl-Josef Müller
Josef Stümpel
Werner Wübbeke
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 EP1286108A2 publication Critical patent/EP1286108A2/fr
Publication of EP1286108A3 publication Critical patent/EP1286108A3/fr
Withdrawn legal-status Critical Current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
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/40—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades
    • F21S41/47—Attachment thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/29—Attachment thereof
    • F21S41/295—Attachment thereof specially adapted to projection lenses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/25—Projection lenses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/40—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades
    • F21S41/43—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades characterised by the shape thereof

Definitions

  • the invention relates to a vehicle headlamp based on the projection principle with a light source arranged in a one-piece reflector, one of which Reflector upstream aperture and one of the aperture upstream over a Lens holder with lens connected to the reflector.
  • the light from a light source which are in the area of a first focal point of an approximately elliptical
  • the reflector is focused in a second focal point of the reflector.
  • An aperture also called a shader, limits the light beam Generation of the cut-off line.
  • a downstream mostly plano-convex, aspherical lens is with its focal point in the second focal point of the reflector arranges and projects the light onto the street.
  • DE 35 35 249 C2 is a dimmed vehicle rail projector with a ellipsoidal reflector, one arranged in the first focal point Light source and an adjustable aperture known, the light-dark boundary generating upper edge at the outer or second focal point of the reflector and lies at the inner focal point of a converging lens, the reflector, the lens and the aperture over a frame or a lens holder are firmly connected to each other to form an interchangeable unit.
  • the lens holder has the shape of a table, the legs with their free Ends are attached to the reflector and the one facing away from the reflector Side of the lens holder is provided with an opening into which the lens is used.
  • the cover can be attached to two legs of the lens holder.
  • a disadvantage of such a headlight is that the positioning of Lens and aperture to the reflector are relatively complex and correspondingly expensive is.
  • EP 0 750 156 A2 and EP 0 750 157 A2 are vehicle headlights known according to the projection principle, in which the aperture and the lens holder are firmly connected to the reflector.
  • a disadvantage of these known vehicle headlights is that these for assembly purposes in Longitudinal direction are divided in half and with each other via clamping devices need to be connected. This also leads to a relatively expensive one Assembly.
  • the object of the present invention is therefore the known vehicle headlights to make it more cost-effective in its construction or assembly.
  • the lens holder is molded onto the reflector and is therefore a component of the one-piece reflector, additional components are not required. In order to joining tolerances are also reduced because fewer components have a shorter tolerance chain result. At the same time, the design options improve. This eliminates the need for a separate lens holder in addition to facilitating assembly, also at reduced costs.
  • the lens holder from at least three that run approximately parallel to the optical axis elastic bars "at their free end" undercuts to hold the lens are trained.
  • the lens is self-locking in with its lens edge the undercuts of the elastic webs can be inserted.
  • the screen is an insert Can be arranged on the reflector and positioned using catches.
  • the Aperture at least three struts, each with one first end arranged laterally on the panel and with the first end free end facing away from the lens are angled and on the Support the inside of the lens facing the reflector.
  • the screen can be easily inserted into the reflector and position the lens assembly without play in the reflector. at the same time can the distance between the lens and reflector through the appropriate training the aperture can be ensured.
  • the Cover in the area of the elastic webs to match these recesses on. This allows the position between the aperture and the reflector to be precisely determined.
  • the reflector at its front reflector end facing the lens, an aperture heel to accommodate the aperture.
  • the aperture of the aperture can be adjusted to the aperture Aperture and its assembly further facilitated.
  • a vehicle headlight based on the projection principle essentially exists from a light source 1, a reflector 2, an aperture 3 and a lens 4th
  • the light source 1 is through a service opening of a housing, not shown in a lamp holder arranged on the back of the reflector 2 5 usable.
  • the reflector 2 is in the direction of radiation of the vehicle headlight the aperture 3 upstream.
  • Lens holder 6 is in front of the reflector 2 and the aperture 3, the lens 4.
  • the reflector 2 has at its reflector end facing the lens 4 7 an aperture paragraph 8 for receiving the aperture 3.
  • the lens holder 6 consists of three approximately parallel to the optical axis 9 extending elastic webs 10.
  • the elastic webs 10 are with their the rear ends 11 facing the reflector 2 at the front reflector end 7 molded in the area of the aperture paragraph 8.
  • the elastic webs 10 At its rear end 11 facing away from the free end 12, each have one Undercut 13 for receiving the lens 4.
  • the undercuts 13 are open the lens edge 14 of the lens 4 coordinated with the lens 4 in self-locking the undercuts 13 can be inserted.
  • the aperture 3 is arranged as an insert in the aperture paragraph 8 of the reflector 2. or insertable.
  • the panel 3 has three spring struts 15 as a lock, each arranged with a first end 16 laterally on the panel 3 and with its free second end 17 facing away from the first end 16 to the lens 4 are angled towards and on an inside of the lens facing the reflector 2 18 support in the area of the lens edge 14.
  • the struts 15 ensure the distance between lens 4 and reflector 2.
  • the diaphragm 3 has matched to these in the region of elastic webs 10 Recesses 19 on.
  • the recesses 19 prevent displacement or rotation of the aperture 3 with respect to the optical axis 9.
  • the panel 3 is positioned in the panel shoulder 8 and then the lens 4 self-locking in the elastic webs 10 or their Undercuts 13 pressed in, so that the aperture 3 without play against the reflector 2 or the aperture paragraph 8 is pressed.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
EP02016044A 2001-08-21 2002-07-19 Projecteur pour véhicule Withdrawn EP1286108A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10140943 2001-08-21
DE10140943A DE10140943A1 (de) 2001-08-21 2001-08-21 Fahrzeugscheinwerfer

Publications (2)

Publication Number Publication Date
EP1286108A2 true EP1286108A2 (fr) 2003-02-26
EP1286108A3 EP1286108A3 (fr) 2004-02-18

Family

ID=7696122

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02016044A Withdrawn EP1286108A3 (fr) 2001-08-21 2002-07-19 Projecteur pour véhicule

Country Status (2)

Country Link
EP (1) EP1286108A3 (fr)
DE (1) DE10140943A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1684007A3 (fr) * 2005-01-20 2007-03-28 Hella KG Hueck & Co. Projecteur pour véhicules

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3535249C2 (de) 1984-10-18 1987-03-12 Hella KG Hueck & Co, 4780 Lippstadt Abgeblendeter Fahrzeugscheinwerfer
EP0750156A2 (fr) 1995-06-22 1996-12-27 Valeo Vision Projecteur du genre elliptique à miroir perfectionné pour véhicule automobile
EP0750157A2 (fr) 1995-06-22 1996-12-27 Valeo Vision Projecteur du genre elliptique à construction perfectionnée pour véhicule automobile

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7433223U (de) * 1975-01-23 Opel A Ag Fahrzeugscheinwerfer
FR2442399A1 (fr) * 1978-11-24 1980-06-20 Cibie Projecteurs Projecteur de vehicule automobile protege des effets des bris de glace et des agents exterieurs
DE3516812A1 (de) * 1985-05-10 1986-11-13 Hella KG Hueck & Co, 4780 Lippstadt Abgeblendeter fahrzeugscheinwerfer
IT231492Y1 (it) * 1992-10-01 1999-08-03 Hella Kg Hueck & Co Proiettore anabbagliante per veicoli.
DE19519872A1 (de) * 1995-05-31 1996-12-05 Bosch Gmbh Robert Scheinwerfer für Fahrzeuge
DE19655357B4 (de) * 1996-05-25 2009-01-15 Automotive Lighting Reutlingen Gmbh Fahrzeug-Scheinwerfer
FR2753148B1 (fr) * 1996-09-06 1998-12-04 Valeo Vision Projecteur pour vehicule automobile a assemblage simplifie

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3535249C2 (de) 1984-10-18 1987-03-12 Hella KG Hueck & Co, 4780 Lippstadt Abgeblendeter Fahrzeugscheinwerfer
EP0750156A2 (fr) 1995-06-22 1996-12-27 Valeo Vision Projecteur du genre elliptique à miroir perfectionné pour véhicule automobile
EP0750157A2 (fr) 1995-06-22 1996-12-27 Valeo Vision Projecteur du genre elliptique à construction perfectionnée pour véhicule automobile

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1684007A3 (fr) * 2005-01-20 2007-03-28 Hella KG Hueck & Co. Projecteur pour véhicules

Also Published As

Publication number Publication date
DE10140943A1 (de) 2003-03-06
EP1286108A3 (fr) 2004-02-18

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