GB103334A - Improvements in the Construction of Headlamps for Vehicles. - Google Patents

Improvements in the Construction of Headlamps for Vehicles.

Info

Publication number
GB103334A
GB103334A GB1046/16A GB104616A GB103334A GB 103334 A GB103334 A GB 103334A GB 1046/16 A GB1046/16 A GB 1046/16A GB 104616 A GB104616 A GB 104616A GB 103334 A GB103334 A GB 103334A
Authority
GB
United Kingdom
Prior art keywords
reflector
lamp
bulb
filament
coincident
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
GB1046/16A
Inventor
Percy Edward Correll
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB1046/16A priority Critical patent/GB103334A/en
Publication of GB103334A publication Critical patent/GB103334A/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
    • F21S41/30—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)

Abstract

103,334. Correll, P. E. Jan. 22, 1916. Vehicular lanterns.-An automobile or like head-lamp is provided with a reflector consisting of an upper and a lower concave reflecting-surface, each being a portion of a conicoid of revolution, but of unequal eccentricities, and arranged so that one serves to illuminate the roadway at a distance, whilst the other gives a broad distribution of light immediately in front of the vehicle. In the form shown in Fig. 4, the upper part A is ellipsoidal (or spherical, as the limit of the ellipsoidal form), and the part B is paraboloidal, the axes and foci of the two parts being coincident. The filament of an incandescent electric lamp employed is a helix of very small diameter, constituting substantially a small " line source " of light, which is set in alinement with the axes of the reflectors, and with its front end coincident with their coincident foci. In a modification, the upper part of the reflector is paraboloidal, and the lower part hyperboloidal; in this case, the rear end of the lamp filament is located at the focus of the paraboloid. The lamp is secured by any suitable means to the reflector, in a hole which is made somewhat larger than the diameter of the bulb, so as to avoid reflection on to and from the bulb; direct rays may also be suppressed by rendering the front of the bulb opaque, for example, by black paint; and to avoid interference, the supporting wires of the filament are set to lie substantially in the plane about which the two parts of the reflector are positioned.
GB1046/16A 1916-01-22 1916-01-22 Improvements in the Construction of Headlamps for Vehicles. Expired GB103334A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1046/16A GB103334A (en) 1916-01-22 1916-01-22 Improvements in the Construction of Headlamps for Vehicles.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1046/16A GB103334A (en) 1916-01-22 1916-01-22 Improvements in the Construction of Headlamps for Vehicles.

Publications (1)

Publication Number Publication Date
GB103334A true GB103334A (en) 1917-01-22

Family

ID=32242979

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1046/16A Expired GB103334A (en) 1916-01-22 1916-01-22 Improvements in the Construction of Headlamps for Vehicles.

Country Status (1)

Country Link
GB (1) GB103334A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0417672A2 (en) * 1989-09-14 1991-03-20 Hella KG Hueck & Co. Headlight, especially for vehicles

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0417672A2 (en) * 1989-09-14 1991-03-20 Hella KG Hueck & Co. Headlight, especially for vehicles
EP0417672A3 (en) * 1989-09-14 1991-08-28 Hella Kg Hueck & Co. Headlight, especially for vehicles

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