US1577338A - Headlight - Google Patents

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Publication number
US1577338A
US1577338A US70617324A US1577338A US 1577338 A US1577338 A US 1577338A US 70617324 A US70617324 A US 70617324A US 1577338 A US1577338 A US 1577338A
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United States
Prior art keywords
reflector
headlight
casing
point
downwardly
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 - Lifetime
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Inventor
Bayard T Merrill
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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.)
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Priority to US70617324 priority Critical patent/US1577338A/en
Application granted granted Critical
Publication of US1577338A publication Critical patent/US1577338A/en
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Expired - Lifetime legal-status Critical Current

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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
    • F21V7/00—Reflectors for light sources
    • F21V7/04—Optical design
    • 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
    • F21S41/321—Optical layout thereof the reflector being a surface of revolution or a planar surface, e.g. truncated
    • 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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2107/00—Use or application of lighting devices on or in particular types of vehicles
    • F21W2107/10—Use or application of lighting devices on or in particular types of vehicles for land vehicles

Definitions

  • This invention relates to headlights ⁇ for motor operated vehicles, and aims to simplily the construction illustrated and described in Patent #1,248,146, issued to me on November 27, 1917, the invention having for its object, a headlight construction designed to prevent the light rays from being directed upwardly above a predetermined point, and thus prevent collisions and accidents usually resulting from the hlindin(Y effect these rays have on pedestrians anc drivers ot other automobiles.
  • I provide a construction wherein the light rays are directed outwardly and downwardly tor the proper illumination of the roadway in advance of the vehicle, and eliminates all up wardly directed rays with their resultant blinding effect upon th-e eyes ofthe others, and accomplishes these ends without the necessity of dimming the lights, which practice is now commonly resorted to for this purpose.
  • Figure l is a front elevation ci the headlight constructed in accordance with theV present invention.
  • Figure 2 is a sectional view taken on the line 2 2 of Figure l..
  • 10 represents what I term the main reflector of the headlight, and from an inspection of Figure 2, it will be noted that the lower end of this reflector projects'an appreciable distance forward or in advance of the upper edge thereof, so that the auxiliary reflector l1 is permitted to be arranged at a peculiar 1924.
  • the auxiliary reflector 1l is oit course constructed 'from any suitable opaque material, and the line of projection indicated at X intersects the apen or point ot juncture between this auxiliary reflector ll and the lens l2. It will be noted from an inspection ol.I Figure 2 that the projection point is arranged in the line X,
  • the projection point Y is disposed above the center of the iront ot the headlight, and this fact coupled with the particular location of the bulb 13, prevents the light rays from being directed upwardly, with the detrimental results above pointed out.
  • the light rays are directed outwardly and downwardly atk such an angle with relation tov th-e ground, asl to properly illuminate the latter the requisite distance in advance of the machine, and at the same time eliminate any blinding effect on pedestrians and drivers of other vehicles, which is accomplished without dimming the lights or in any other way manipulating the same.
  • An automobile headlight comprising a casing, a rellector arranged therein and including a curved body portion having an opening at a point above its transverse center to receiveand ⁇ support an electric light bulb at a downward inclination with respect to said casing, the forward edge oit the reflector terminating to provide a senndrcular flange projecting outwardly therefrom and arranged to engage the adjacent Wall of the casing, the upper portion of the reflector contacting the adjacent Wall of the casing, and a shield of opaque material projecting ⁇ outwardlyv and downwardly 'roni tlie remaining upper half of the re- Heetor., and terminating at a point in a plane beneath said bulb as and for the purpose Specified.

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

Description

March 16 1926.
. B. T *MERRILL l @ADL-IGM Filed Abril 12.l '1924 a f .4.. ...........J
. h FBZIMIINVENTOR WITNESS:
ATTORNEY Patented Mar. 16, i926.
UNITED SIATES BAYARD T. MERRILL, OF VALSET'UREGON.
HEADLIGI-IT.
Application filed April 12,
To all 'whom t may concern.'
Be it known that I, BAYARD T. MERRILL, a citizen out t-he United States, residing at Valsetz, in the county ot Polk and State of Gregon, have invented new and useful Improvements in Headlights, of which the itollowing is a speciiication.
This invention relates to headlights `for motor operated vehicles, and aims to simplily the construction illustrated and described in Patent #1,248,146, issued to me on November 27, 1917, the invention having for its object, a headlight construction designed to prevent the light rays from being directed upwardly above a predetermined point, and thus prevent collisions and accidents usually resulting from the hlindin(Y effect these rays have on pedestrians anc drivers ot other automobiles.
In carrying out the invention, I provide a construction wherein the light rays are directed outwardly and downwardly tor the proper illumination of the roadway in advance of the vehicle, and eliminates all up wardly directed rays with their resultant blinding effect upon th-e eyes ofthe others, and accomplishes these ends without the necessity of dimming the lights, which practice is now commonly resorted to for this purpose.
The nature and advantages of the invention will be better understood when the 'following detailed description is read in connection with the accompanying drawings, the invention residing in the construction, combination and arrangement of parts as claimed.
In the drawings forming part of this application, like numerals of reference indicate similar parts in the several views, and wherein:
Figure l is a front elevation ci the headlight constructed in accordance with theV present invention. l
Figure 2 is a sectional view taken on the line 2 2 of Figure l..
Referring to the drawings in detail, 10 represents what I term the main reflector of the headlight, and from an inspection of Figure 2, it will be noted that the lower end of this reflector projects'an appreciable distance forward or in advance of the upper edge thereof, so that the auxiliary reflector l1 is permitted to be arranged at a peculiar 1924. Serial N0. 706,173.
angle with relation to the upper edge of the reiiector 10 and the adjacent edge of the lens '12. The auxiliary reflector 1l is oit course constructed 'from any suitable opaque material, and the line of projection indicated at X intersects the apen or point ot juncture between this auxiliary reflector ll and the lens l2. It will be noted from an inspection ol.I Figure 2 that the projection point is arranged in the line X,
which line is directed outwardly and downwardly, from the bulb 13 supported by the retiector 10 at a point above the lower edge of the opaque auxiliary reflector 11. Consequently, the projection point Y is disposed above the center of the iront ot the headlight, and this fact coupled with the particular location of the bulb 13, prevents the light rays from being directed upwardly, with the detrimental results above pointed out. On the contrary the light rays are directed outwardly and downwardly atk such an angle with relation tov th-e ground, asl to properly illuminate the latter the requisite distance in advance of the machine, and at the same time eliminate any blinding effect on pedestrians and drivers of other vehicles, which is accomplished without dimming the lights or in any other way manipulating the same. rIhe lower end of the reflector is formed with a semi-circular fiange Ist which bears against the adjacent portion of the lamp casing, to assist in supporting the reflector in position, cooperating with the top portion ol' the reflector :tor this purpose, which top portion contacts the adjacent wall vof the casing as illustrated in Figure 2.
IVhile it is believed that from the A,foregoing description, the nature and advantages olE the invention will be readily appar1H ent, I desire to have it understood that I do not limit myself to what is herein shown and described, and that lsuch changes mayy be resorted to when desired as fall within the scope of what is claimed.
Having thus described the invention, I claim:
An automobile headlight comprising a casing, a rellector arranged therein and including a curved body portion having an opening at a point above its transverse center to receiveand` support an electric light bulb at a downward inclination with respect to said casing, the forward edge oit the reflector terminating to provide a senndrcular flange projecting outwardly therefrom and arranged to engage the adjacent Wall of the casing, the upper portion of the reflector contacting the adjacent Wall of the casing, and a shield of opaque material projecting` outwardlyv and downwardly 'roni tlie remaining upper half of the re- Heetor., and terminating at a point in a plane beneath said bulb as and for the purpose Specified.
In testimony whereof I aflii my Signature.
BAYARD T. MRR-LL.
US70617324 1924-04-12 1924-04-12 Headlight Expired - Lifetime US1577338A (en)

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US70617324 US1577338A (en) 1924-04-12 1924-04-12 Headlight

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10302266B2 (en) * 2017-02-09 2019-05-28 Excellence Optoelectronics Inc. Vehicular headlamp having shade element with reflective portions

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10302266B2 (en) * 2017-02-09 2019-05-28 Excellence Optoelectronics Inc. Vehicular headlamp having shade element with reflective portions

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