EP0068631A1 - Reflektor für Kraftfahrzeugscheinwerfer - Google Patents

Reflektor für Kraftfahrzeugscheinwerfer Download PDF

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Publication number
EP0068631A1
EP0068631A1 EP82302636A EP82302636A EP0068631A1 EP 0068631 A1 EP0068631 A1 EP 0068631A1 EP 82302636 A EP82302636 A EP 82302636A EP 82302636 A EP82302636 A EP 82302636A EP 0068631 A1 EP0068631 A1 EP 0068631A1
Authority
EP
European Patent Office
Prior art keywords
reflective portion
paraboloidal
filament
reflector
paraboloidal reflective
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Withdrawn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
EP82302636A
Other languages
English (en)
French (fr)
Inventor
Kenneth James Jones
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.)
ZF International UK Ltd
Original Assignee
Lucas Industries Ltd
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 Lucas Industries Ltd filed Critical Lucas Industries Ltd
Publication of EP0068631A1 publication Critical patent/EP0068631A1/de
Withdrawn legal-status Critical Current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
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/32—Optical layout thereof
    • F21S41/36—Combinations of two or more separate reflectors
    • F21S41/365—Combinations of two or more separate reflectors successively reflecting the light

Definitions

  • the planar reflective portion 16 is disposed below the central aperture 12 and is inclined at an angle of about 45 degrees with respect to the horizontal so that it faces the axis 21.
  • the planar reflective portion 16 is arranged so that it produced an image at 22 of the inner end of the filament, ie that portion of the filament lying on the focus of the first paraboloidalreflective portion 13.
  • the second reflective paraboloidal portion 14 has a focal length which is longer than either of the first and third paraboloidal reflective portions 13 and 15.
  • the focus of the second paraboloidal reflective portion 14 lies at 22, ie. the image of the inner end of the bulb filament lies on the focus of the reflective portion 14.
  • the passing beam filament is provided with a filament shield 130 which serves to prevent light from this latter filament being reflected off the part of the first paraboloidal reflective portion 113 which is disposed in the lower part of the body 110.
  • the shield 130 provides the cut-off to the top of the passing beam pattern as will be apparent to a person skilled in the art.
  • the second paraboloidal reflective portion 114 is arranged to provide the required compact beam in the same position as that indicated at 27 in Fig. 4. In fact, under passing beam conditions, the beam pattern projected by the reflector of Fig. 2 will be similar to that of Fig.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
EP82302636A 1981-06-18 1982-05-24 Reflektor für Kraftfahrzeugscheinwerfer Withdrawn EP0068631A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8118783 1981-06-18
GB8118783 1981-06-18

Publications (1)

Publication Number Publication Date
EP0068631A1 true EP0068631A1 (de) 1983-01-05

Family

ID=10522602

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82302636A Withdrawn EP0068631A1 (de) 1981-06-18 1982-05-24 Reflektor für Kraftfahrzeugscheinwerfer

Country Status (3)

Country Link
EP (1) EP0068631A1 (de)
JP (1) JPS5816401A (de)
AU (1) AU8486882A (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107448865A (zh) * 2017-07-14 2017-12-08 达运精密工业股份有限公司 光反射罩及具有光反射罩的照明装置

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6133302U (ja) * 1984-07-31 1986-02-28 スタンレー電気株式会社 前照灯用非同軸マルチリフレクタ−
JPS62193001A (ja) * 1986-02-19 1987-08-24 スタンレー電気株式会社 ヘツドランプ用の複合反射鏡

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE728866C (de) * 1941-02-18 1942-12-04 Zeiss Ikon Ag Scheinwerfer
FR1522443A (fr) * 1967-03-15 1968-04-26 Cibie Projecteurs Perfectionnements aux projecteurs de faible encombrement axial

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE728866C (de) * 1941-02-18 1942-12-04 Zeiss Ikon Ag Scheinwerfer
FR1522443A (fr) * 1967-03-15 1968-04-26 Cibie Projecteurs Perfectionnements aux projecteurs de faible encombrement axial

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107448865A (zh) * 2017-07-14 2017-12-08 达运精密工业股份有限公司 光反射罩及具有光反射罩的照明装置
CN107448865B (zh) * 2017-07-14 2022-06-28 达运精密工业股份有限公司 光反射罩及具有光反射罩的照明装置

Also Published As

Publication number Publication date
JPS5816401A (ja) 1983-01-31
AU8486882A (en) 1982-12-23

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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

Designated state(s): DE FR GB IT

17P Request for examination filed

Effective date: 19830622

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

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19840403

RIN1 Information on inventor provided before grant (corrected)

Inventor name: JONES, KENNETH JAMES