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GB1380495A - Headlamp for a motor vehicle - Google Patents

Headlamp for a motor vehicle

Info

Publication number
GB1380495A
GB1380495A GB547872A GB547872A GB1380495A GB 1380495 A GB1380495 A GB 1380495A GB 547872 A GB547872 A GB 547872A GB 547872 A GB547872 A GB 547872A GB 1380495 A GB1380495 A GB 1380495A
Authority
GB
United Kingdom
Prior art keywords
reflector
axis
lamp
filament
mirror
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
Application number
GB547872A
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.)
Ducellier et Cie
Original Assignee
Ducellier et Cie
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 Ducellier et Cie filed Critical Ducellier et Cie
Publication of GB1380495A publication Critical patent/GB1380495A/en
Expired 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
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)

Abstract

1380495 Vehicle lamps DUCELLIER & CIE 7 Feb 1972 [16 Feb 1971] 5478/72 Heading F4R A motor vehicle headlamp comprises a dipping filament 2 which is partly masked by a screen 1 wherein the inclination of the filament axis to the axis of the reflector 4 is adjustable and the orientation of the screen 1 with respect to the filament 2 is adjustable, so that, with an additional light reflecting, refracting or absorbing element 7, the pattern of light emission shown in Fig. 2 is obtained, where V-V is a vertical through -the reflector axis and L-L is a horizontal. As shown in Figs. 7 and 8 the element 7 is a section of a paraboloidal mirror 11 fitted adjacent the centre of reflector. Alternatively, if a part of reflector 4 is made transparent, a mirror 7 may be disposed outside the lamp enclosure, or the mirror 7 may be formed by directly deforming the reflector 4. As a further alternative the element may be formed by an absorbent non-reflective zone on the reflector comprising black paint or cutting the reflector itself. A still further alternative, Figs. 9 and 10 (not shown), form of the element comprises a dioptric element (8) which forms a part of front glass 6 of the lamp. In effecting the adjustment, the lamp is first inclined at an angle # to the axis X-X of the reflector and then the lamp is rotated about the filament axis an angle # to form a completely horizontal cut-off boundary, Fig. 4 (not shown). The provision of the element 7 adjacent the centre of the reflector then produces the cut-off boundary of Fig. 2.
GB547872A 1971-02-16 1972-02-07 Headlamp for a motor vehicle Expired GB1380495A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7105178A FR2125674A5 (en) 1971-02-16 1971-02-16

Publications (1)

Publication Number Publication Date
GB1380495A true GB1380495A (en) 1975-01-15

Family

ID=9071974

Family Applications (1)

Application Number Title Priority Date Filing Date
GB547872A Expired GB1380495A (en) 1971-02-16 1972-02-07 Headlamp for a motor vehicle

Country Status (7)

Country Link
BE (1) BE778362A (en)
DE (1) DE2206127C2 (en)
ES (2) ES399812A1 (en)
FR (1) FR2125674A5 (en)
GB (1) GB1380495A (en)
IT (1) IT947175B (en)
NL (1) NL7201969A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5865703U (en) * 1981-10-29 1983-05-04 本田技研工業株式会社 vehicle headlights
GB2311364A (en) * 1996-03-20 1997-09-24 Bosch Gmbh Robert Low beam headlamp for vehicles

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2392322A1 (en) * 1977-05-25 1978-12-22 Ducellier & Cie PROCESS FOR OBTAINING A NEW CROSSING BEAM
EP0111579A1 (en) * 1982-12-17 1984-06-27 Ichikoh Industries Limited Vehicle headlamp

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1100334A (en) * 1954-02-17 1955-09-19 Machal Projecteurs Improvements to motor vehicle headlamps fitted with a dipped-beam lighting device
DE1916816U (en) * 1964-11-21 1965-06-03 Bosch Gmbh Robert REFLECTOR OF A MOTOR VEHICLE HEADLIGHT.

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5865703U (en) * 1981-10-29 1983-05-04 本田技研工業株式会社 vehicle headlights
JPS6119445Y2 (en) * 1981-10-29 1986-06-12
GB2311364A (en) * 1996-03-20 1997-09-24 Bosch Gmbh Robert Low beam headlamp for vehicles
GB2311364B (en) * 1996-03-20 1998-04-29 Bosch Gmbh Robert Low beam headlamp for vehicles

Also Published As

Publication number Publication date
IT947175B (en) 1973-05-21
ES399812A1 (en) 1975-07-01
NL7201969A (en) 1972-08-18
FR2125674A5 (en) 1972-09-29
BE778362A (en) 1972-05-16
DE2206127C2 (en) 1983-05-26
DE2206127A1 (en) 1972-08-31
ES427344A1 (en) 1976-07-16

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Legal Events

Date Code Title Description
PS Patent sealed
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee