US1948680A - Headlight reflector - Google Patents

Headlight reflector Download PDF

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Publication number
US1948680A
US1948680A US627514A US62751432A US1948680A US 1948680 A US1948680 A US 1948680A US 627514 A US627514 A US 627514A US 62751432 A US62751432 A US 62751432A US 1948680 A US1948680 A US 1948680A
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United States
Prior art keywords
reflector
upwardly
light
headlight reflector
open face
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Expired - Lifetime
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US627514A
Inventor
Charles E Rose
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Individual
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Priority to US627514A priority Critical patent/US1948680A/en
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    • 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
    • F21S41/162—Incandescent light sources, e.g. filament or halogen lamps
    • 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
    • F21S41/323—Optical layout thereof the reflector having two perpendicular cross sections having regular geometrical curves of a distinct nature
    • 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

  • This invention relates to a reflector for the headlights of automobiles and it aims to provide a construction affording maximum reflection without glare and wasted light, and with the maximum light rays being thrown outwardly and downwardly affording greater visibility, and a construction which attains these objects even with the use of ordinary electric bulbs.
  • Figure 1 is a view in front elevation showing the improved reflector
  • Figure 2 is a substantially central vertical sectional view taken on the line 2-2 of Figure 1, but on an enlarged scale.
  • the reflector is generally designated 10, being of metal or any other suitable material and having its inner surface 11 highly polished, mirrored or the like to afford a reflecting surface.
  • the lower edge at the front of the reflector is longitudinally arcuate as shown at 12 and from the same a portion 13 of the reflector is curled forwardly, upwardly, and inwardly, terminating in a straight edge 14 at the maximum width of the reflector.
  • the reflector is completely open at the front as shown in Figure 2.
  • an ordinary electric bulb 15 Disposed behind the curled portion 14 is an ordinary electric bulb 15. Rearwardly of the bulb 15 the lower wall of the reflector as at 16 curves inwardly so that the upper surface is convex, the lower wall of the reflector thus being a compound curve.
  • the main wall 17 of the reflector is not of truly spherical shape, but is shaped according to a combination of curves.
  • the light rays striking the portion 16 are reflected to the back and upper walls and the beam of light thus reinforced, and all light rays will emerge forwardly and downwardly. Due to the continuity in shape of the side walls like the rear wall, a broad light is afforded which covers the entire width of the highway.
  • the focus may be obtained by adjustment 01' the bulb and by tilting the lamp.
  • a reflector for headlights having a relatively high open face and a relatively low front wall portion below its open face, curving forwardly, upwardly and inwardly and adapted to contain. a light source therein, a bottom wall of the reflector extending from said portion with the rear part thereof convexly curved interiorly of the reflector, the front wall portion and said part being at substantially the same height, and a concave side and rear portion extending upwardly from said bottom wall to substantially the from 70 upper edge portion of the reflector, the reflector being of greater height than depth.
  • a reflector for headlights having a relatively high open face and a relatively low front wall portion below its open face, curving forwardly, upwardly and inwardly and adapted to contain a light source therein, a bottom wall of the reflector extending from said portion with the rear part thereof convexly curved interiorly of the reflector, the front wall portion and said part being at substantially the same height, and a concave side and rear portion extending upwardly from said bottom wall to substantially the front upper edge portion of the reflector, the reflector being of greater height than depth and progressively decreasing in width.
  • a reflector for headlights having a relatively high open face and a relatively low front wall portion below its open face, curving forwardly, upwardly and inwardly and adapted to contain a light source therein, a bottom wall of the reflector extending from said portion with the rear part thereof convexly curved interiorly of the reflector, the front wall portion and said part being at substantially the same height, and a concave side and rear portion extending upwardly from said bottom wall to substantially the front upper edge portion of the reflector, the reflector being of greater height than depth and progressively decreasing in width, the upper edge of said first mentioned portion being substantially straight and of the maximum width of the reflector.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Description

27, 1934. c RQSE HEADLIGHT REFLECTOR Filed Aug. 4, 1932 C. E. R066. I
Patented Feb. 27, 1934 UNITED STATES PATENT OFFICE 3 Claims.
This invention relates to a reflector for the headlights of automobiles and it aims to provide a construction affording maximum reflection without glare and wasted light, and with the maximum light rays being thrown outwardly and downwardly affording greater visibility, and a construction which attains these objects even with the use of ordinary electric bulbs.
The more specific objects and advantages will become apparent from a consideration of the description following taken in connection with accompanying drawing illustrating an operative embodiment.
In said draWing:--
Figure 1 is a view in front elevation showing the improved reflector, and
Figure 2 is a substantially central vertical sectional view taken on the line 2-2 of Figure 1, but on an enlarged scale.
Referring specifically to the drawing, the reflector is generally designated 10, being of metal or any other suitable material and having its inner surface 11 highly polished, mirrored or the like to afford a reflecting surface.
The lower edge at the front of the reflector is longitudinally arcuate as shown at 12 and from the same a portion 13 of the reflector is curled forwardly, upwardly, and inwardly, terminating in a straight edge 14 at the maximum width of the reflector. About such edge 14, the reflector is completely open at the front as shown in Figure 2. Disposed behind the curled portion 14 is an ordinary electric bulb 15. Rearwardly of the bulb 15 the lower wall of the reflector as at 16 curves inwardly so that the upper surface is convex, the lower wall of the reflector thus being a compound curve. The main wall 17 of the reflector, it will be noted, is not of truly spherical shape, but is shaped according to a combination of curves.
As a result no light rays can emerge without being reflected and hence the light rays are under control, eliminating waste, glare and the large fan of light seen against the reflector of ordinary headlights by oncoming motorists.
Due to the construction described, the light rays striking the portion 16 are reflected to the back and upper walls and the beam of light thus reinforced, and all light rays will emerge forwardly and downwardly. Due to the continuity in shape of the side walls like the rear wall, a broad light is afforded which covers the entire width of the highway.
The focus may be obtained by adjustment 01' the bulb and by tilting the lamp.
Various changes may be resorted to provided they fall within the spirit and scope of the invention.
What I claim as my invention is:
1. A reflector for headlights having a relatively high open face and a relatively low front wall portion below its open face, curving forwardly, upwardly and inwardly and adapted to contain. a light source therein, a bottom wall of the reflector extending from said portion with the rear part thereof convexly curved interiorly of the reflector, the front wall portion and said part being at substantially the same height, and a concave side and rear portion extending upwardly from said bottom wall to substantially the from 70 upper edge portion of the reflector, the reflector being of greater height than depth.
2. A reflector for headlights having a relatively high open face and a relatively low front wall portion below its open face, curving forwardly, upwardly and inwardly and adapted to contain a light source therein, a bottom wall of the reflector extending from said portion with the rear part thereof convexly curved interiorly of the reflector, the front wall portion and said part being at substantially the same height, and a concave side and rear portion extending upwardly from said bottom wall to substantially the front upper edge portion of the reflector, the reflector being of greater height than depth and progressively decreasing in width.
3. A reflector for headlights having a relatively high open face and a relatively low front wall portion below its open face, curving forwardly, upwardly and inwardly and adapted to contain a light source therein, a bottom wall of the reflector extending from said portion with the rear part thereof convexly curved interiorly of the reflector, the front wall portion and said part being at substantially the same height, and a concave side and rear portion extending upwardly from said bottom wall to substantially the front upper edge portion of the reflector, the reflector being of greater height than depth and progressively decreasing in width, the upper edge of said first mentioned portion being substantially straight and of the maximum width of the reflector.
CHARLES E. ROSE.
US627514A 1932-08-04 1932-08-04 Headlight reflector Expired - Lifetime US1948680A (en)

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US627514A US1948680A (en) 1932-08-04 1932-08-04 Headlight reflector

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Application Number Priority Date Filing Date Title
US627514A US1948680A (en) 1932-08-04 1932-08-04 Headlight reflector

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US1948680A true US1948680A (en) 1934-02-27

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4783725A (en) * 1987-08-24 1988-11-08 Rayovac Flashlight with space efficient reflector
US6454442B1 (en) 1999-07-09 2002-09-24 David G. Changaris Device for soft irradiation

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4783725A (en) * 1987-08-24 1988-11-08 Rayovac Flashlight with space efficient reflector
US6454442B1 (en) 1999-07-09 2002-09-24 David G. Changaris Device for soft irradiation

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