GB1253055A - - Google Patents

Info

Publication number
GB1253055A
GB1253055A GB1253055DA GB1253055A GB 1253055 A GB1253055 A GB 1253055A GB 1253055D A GB1253055D A GB 1253055DA GB 1253055 A GB1253055 A GB 1253055A
Authority
GB
United Kingdom
Prior art keywords
central axis
paraboloidal
mirror
recuperative
lie
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
Other languages
English (en)
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 filed Critical
Publication of GB1253055A publication Critical patent/GB1253055A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K9/00—Lamps having two or more incandescent bodies separately heated
    • H01K9/08—Lamps having two or more incandescent bodies separately heated to provide selectively different light effects, e.g. for automobile headlamp
    • 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
    • F21S41/33—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature
    • F21S41/334—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature the reflector consisting of patch like sectors
    • F21S41/336—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature the reflector consisting of patch like sectors with discontinuity at the junction between adjacent areas

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Optical Elements Other Than Lenses (AREA)
GB1253055D 1967-10-10 1968-10-08 Expired GB1253055A (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR123829A FR1546698A (fr) 1967-10-10 1967-10-10 Perfectionnements aux réflecteurs de projecteurs de croisement

Publications (1)

Publication Number Publication Date
GB1253055A true GB1253055A (de) 1971-11-10

Family

ID=8639786

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1253055D Expired GB1253055A (de) 1967-10-10 1968-10-08

Country Status (2)

Country Link
FR (1) FR1546698A (de)
GB (1) GB1253055A (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2150684A (en) * 1983-11-09 1985-07-03 Westfaelische Metall Industrie Dipped vehicle headlamp

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2536502B1 (fr) * 1982-11-19 1987-01-09 Cibie Projecteurs Projecteur de croisement pour vehicule automobile
JPS6486401A (en) * 1987-09-29 1989-03-31 Koito Mfg Co Ltd Head light of vehicle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2150684A (en) * 1983-11-09 1985-07-03 Westfaelische Metall Industrie Dipped vehicle headlamp
US4612608A (en) * 1983-11-09 1986-09-16 Westfalische Metall Industrie Kg Hueck & Co. Dimmed vehicle headlight

Also Published As

Publication number Publication date
DE1802113B2 (de) 1976-02-19
FR1546698A (fr) 1968-11-22
DE1802113A1 (de) 1969-05-29

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee