US2168834A - Headlight - Google Patents

Headlight Download PDF

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Publication number
US2168834A
US2168834A US197003A US19700338A US2168834A US 2168834 A US2168834 A US 2168834A US 197003 A US197003 A US 197003A US 19700338 A US19700338 A US 19700338A US 2168834 A US2168834 A US 2168834A
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United States
Prior art keywords
reflector
housing
headlight
wall
top wall
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Expired - Lifetime
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US197003A
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Vallandingham James
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Individual
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Individual
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Priority to US197003A priority Critical patent/US2168834A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V11/00—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00
    • 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

  • This invention relates to headlights and has for an object to provide a reflector having a slightly arched top wall and a substantially oval bottom wall sloped downwardly from the rear end of the reflector, the rear wall of the reflector being formed to receive the lamp bulb and dispose the same in such position that light rays will be reflected by the top wall, bottom wall and arcuate side walls, forwardly and downwardly, to eliminate the blinding glare inherent in conventional headlights.
  • a further object is to provide a headlight having the side walls cut away so that light rays projected from the lamp bulb downwardly at such an angle as to ordinarily be reflected in an upward direction, will not be reflected at all thus promoting the non-glare advantages of the headlight.
  • a further object is to provide a headlight having a novel reflector and having a mask covering the upper portion of the front end of the housing, the front end of the reflector and the mask coacting to form a holder for a lens which covers the lower half portion of the front end of the housing, this construction preventing any light rays being reflected from the upper half of the housing and which might cause harmful glares.
  • a further object is to provide a headlight of this character which may be formed of a few strong simple and durable parts, which will be inexpensive to manufacture, and which will not easily get out of order.
  • Figure 1 is a perspective view of a headlight constructed in accordance with the invention.
  • Figure 2 is a longitudinal sectional view of the headlight shown in Figure 1.
  • Figure 3 is a longitudinal sectional view of the headlight taken on the line 33 of Figure 1 and showing the inclined bottom of the reflector and cut away portion of the front of the reflector to permit light rays being reflected from one side of the reflector through a side lens to illuminate the side of the road.
  • Figure 4 is a cross sectional view of the headlight taken on the line 4-4 of Figure 3.
  • a substantially cylindrical headlight housing having a rounded rear wall II.
  • a clamp ring I2 is mounted on the front end of the housing and is provided with an integral mask [3 which covers substantially the upper half of the front end of the housing.
  • a lens IA of substantially semi-circular shape is confined in the front of the housing against the rear side of the mask and against the clamp ring, the straight upper edge of the lens being held in place by a Z-shaped flange [5 formed on the front end of the reflector.
  • the reflector comprises a top wall l6 which is slightly arched transversely, as best shown in Figure 4, and which is adapted to extend longitudinally of the housing just above the axis of the housing.
  • the reflector is provided with arcuate side walls I! which conform to the general cylindrical shape of the housing and which merge with a bottom wall l8.
  • the bottom wall inclines downwardly and forwardly and terminates just beyond the central median diameter of the housing.
  • the bottom wall I8 is substantially oval in shape, as best shown in Figure 3. The purpose of the bottom wall is to reflect light rays against the top wall from which most of the rays will be reflected downwardly and forwardly.
  • the rear wall 23 of the reflector is integral with the top wall 16 and bottom wall l8 and is comparatively low.
  • An opening 24 is formed at the center of the wall to receive the socket 25 of the lamp bulb 26.
  • the lamp bulb is thus positioned close to the rear ends of the top wall and the bottom wall and by virtue of the top wall being substantially straight and extending longitudinally of the casing just above the axis of the casing, all light rays will be reflected by the top wall in a downwardly and forwardly direction to illuminate the road ahead of the head lamp more brightly than is ordinarily done.
  • a headlight comprising a substantially cylindrical housing, a mask disposed in the front end of the housing and covering substantially the top half area of the front end of the housing, a lens in the front end of the housing below the mask, a light source in the housing disposed slightly below the plane of the bottom edge of the mask, a reflector in the housing having a slightly arched top wall disposed in close proximity to the light source and extending forwardly in the housing to the lower edge of said mask, a downwardly and forwardly inclined oval bottom wall for the reflector terminating at substantially the central diameter of the housing, a short rounded rear wall for the reflector merging into the top wall and into the bottom wall and formed to receive said light source, arcuate side walls for the reflector merging into the top wall, one of the side walls being cut back at the bottom portion thereof to the front edge of said bottom wall of the reflector, said bottom wall of the reflector being of less length than said top Wall of the reflector, a second lens mounted in the side of the housing near the front end thereof, the cut away side wall

Description

Aug. 8, 1939.
J. VALLANDINGHAM HEADLIGHT Filed March 19, 1938 mWhmZiIykaI/z,
INVENTOR ATTORNEYS Patented Aug. 8, 1939 UNITED STATES PATENT QFFICE 1 Claim.
This invention relates to headlights and has for an object to provide a reflector having a slightly arched top wall and a substantially oval bottom wall sloped downwardly from the rear end of the reflector, the rear wall of the reflector being formed to receive the lamp bulb and dispose the same in such position that light rays will be reflected by the top wall, bottom wall and arcuate side walls, forwardly and downwardly, to eliminate the blinding glare inherent in conventional headlights.
A further object is to provide a headlight having the side walls cut away so that light rays projected from the lamp bulb downwardly at such an angle as to ordinarily be reflected in an upward direction, will not be reflected at all thus promoting the non-glare advantages of the headlight.
A further object is to provide a headlight having a novel reflector and having a mask covering the upper portion of the front end of the housing, the front end of the reflector and the mask coacting to form a holder for a lens which covers the lower half portion of the front end of the housing, this construction preventing any light rays being reflected from the upper half of the housing and which might cause harmful glares.
A further object is to provide a headlight of this character which may be formed of a few strong simple and durable parts, which will be inexpensive to manufacture, and which will not easily get out of order.
With the above and other objects in view the invention consists of certain novel details of construction and combinations of parts hereinafter fully described and claimed, it being understood that various modifications may be resorted to within the scope of the appended claim without departing from the spirit or sacrificing any of the advantages of the invention.
In the accompanying drawing forming part of this specification,
Figure 1 is a perspective view of a headlight constructed in accordance with the invention.
Figure 2 is a longitudinal sectional view of the headlight shown in Figure 1.
Figure 3 is a longitudinal sectional view of the headlight taken on the line 33 of Figure 1 and showing the inclined bottom of the reflector and cut away portion of the front of the reflector to permit light rays being reflected from one side of the reflector through a side lens to illuminate the side of the road.
Figure 4 is a cross sectional view of the headlight taken on the line 4-4 of Figure 3.
Referring now to the drawing in which like characters of reference designate similar parts in the various views, In designates a substantially cylindrical headlight housing having a rounded rear wall II. A clamp ring I2 is mounted on the front end of the housing and is provided with an integral mask [3 which covers substantially the upper half of the front end of the housing. A lens IA of substantially semi-circular shape is confined in the front of the housing against the rear side of the mask and against the clamp ring, the straight upper edge of the lens being held in place by a Z-shaped flange [5 formed on the front end of the reflector.
The reflector comprises a top wall l6 which is slightly arched transversely, as best shown in Figure 4, and which is adapted to extend longitudinally of the housing just above the axis of the housing. The reflector is provided with arcuate side walls I! which conform to the general cylindrical shape of the housing and which merge with a bottom wall l8. The bottom wall inclines downwardly and forwardly and terminates just beyond the central median diameter of the housing. The bottom wall I8 is substantially oval in shape, as best shown in Figure 3. The purpose of the bottom wall is to reflect light rays against the top wall from which most of the rays will be reflected downwardly and forwardly. Rays which ordinarily strike at the bottom of the conventional reflector at the front end thereof, in this embodiment of the invention, will strike the housing since the side walls of the reflector are cut back to substantially the central diameter of the housing as shown at l9. One of the side walls is cut away to the side edge of the top wall as shown at 2B in Figure 4 to expose a side lens 2| carried by the casing. The opposite side wall is cut away to such a height as to leave a strip 22, shown best in Figure 2, beneath the top wall Hi and opposite the side lens 2|, as best shown in Figure 4, to reflect light rays through the side lens and illuminate the side of the road better than is ordinarily done.
The rear wall 23 of the reflector is integral with the top wall 16 and bottom wall l8 and is comparatively low. An opening 24 is formed at the center of the wall to receive the socket 25 of the lamp bulb 26. The lamp bulb is thus positioned close to the rear ends of the top wall and the bottom wall and by virtue of the top wall being substantially straight and extending longitudinally of the casing just above the axis of the casing, all light rays will be reflected by the top wall in a downwardly and forwardly direction to illuminate the road ahead of the head lamp more brightly than is ordinarily done.
From the above description it is thought that the construction and operation of the invention will be fully understood without further explanation.
What is claimed is:
A headlight comprising a substantially cylindrical housing, a mask disposed in the front end of the housing and covering substantially the top half area of the front end of the housing, a lens in the front end of the housing below the mask, a light source in the housing disposed slightly below the plane of the bottom edge of the mask, a reflector in the housing having a slightly arched top wall disposed in close proximity to the light source and extending forwardly in the housing to the lower edge of said mask, a downwardly and forwardly inclined oval bottom wall for the reflector terminating at substantially the central diameter of the housing, a short rounded rear wall for the reflector merging into the top wall and into the bottom wall and formed to receive said light source, arcuate side walls for the reflector merging into the top wall, one of the side walls being cut back at the bottom portion thereof to the front edge of said bottom wall of the reflector, said bottom wall of the reflector being of less length than said top Wall of the reflector, a second lens mounted in the side of the housing near the front end thereof, the cut away side wall exposing said second named lens to receive some of the reflected light rays from the opposite side wall of the reflector, and a clamp ring securing the reflector, the mask and the first named lens on said housing.
J ANIES VALLANDINGHAM.
US197003A 1938-03-19 1938-03-19 Headlight Expired - Lifetime US2168834A (en)

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US2168834A true US2168834A (en) 1939-08-08

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