US1570589A - Headlight - Google Patents

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Publication number
US1570589A
US1570589A US715408A US71540824A US1570589A US 1570589 A US1570589 A US 1570589A US 715408 A US715408 A US 715408A US 71540824 A US71540824 A US 71540824A US 1570589 A US1570589 A US 1570589A
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US
United States
Prior art keywords
lens
visor
headlight
reflector
light
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
Application number
US715408A
Inventor
Robert P Mccurdy
Frederick W Hochstetter
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.)
JOSEPH C TREES
Original Assignee
JOSEPH C TREES
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 JOSEPH C TREES filed Critical JOSEPH C TREES
Priority to US715408A priority Critical patent/US1570589A/en
Application granted granted Critical
Publication of US1570589A publication Critical patent/US1570589A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
    • F21V13/02—Combinations of only two kinds of elements
    • F21V13/04—Combinations of only two kinds of elements the elements being reflectors and refractors
    • 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
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/25—Projection lenses
    • F21S41/255—Lenses with a front view of circular or truncated circular outline
    • 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
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/285—Refractors, transparent cover plates, light guides or filters not provided in groups F21S41/24-F21S41/28
    • 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
    • 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
    • F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
    • 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
    • F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
    • F21S41/67—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on reflectors
    • F21S41/675—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on reflectors by moving reflectors
    • 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
    • F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
    • F21S41/68—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on screens
    • F21S41/683—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on screens by moving screens
    • F21S41/692—Shields, i.e. screens not creating an image meant to be projected
    • 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
    • F21W2102/00—Exterior vehicle lighting devices for illuminating purposes
    • F21W2102/10—Arrangement or contour of the emitted light
    • F21W2102/17—Arrangement or contour of the emitted light for regions other than high beam or low beam
    • F21W2102/18—Arrangement or contour of the emitted light for regions other than high beam or low beam for overhead signs

Definitions

  • ROBERT P. MOCUR- DY a resident of Pit-tsburgh, county of Allegheny, and State of Pennsylvania
  • FREDERICK W. HoCHsTETTER a "resident off Dayton, county of Montgomery, and ⁇ State of Ohio, citizens of the United States of America, have invented certain new and useful Improvements. in Headlights, of which the 'following is a full and, clear specification.
  • One object of this invention is to provide a headlight structure which will illuminate the roadway by indirect li hting, to thereby eliminate glare; and a-not er object of the invention is to provide a visor which shall not only be adjustable with respect to the front lens, but also be capable of use as a reflector to throw some of the rays -of light upwardly and forwardly to thus enable the visor to be used-as a sort of spotlight for' reading signs along the roadway, as more fully 4hereinafter set forth.
  • FIG. 1 is a front view and Fig. 2 is a vertical longitudinal sectional view showing one embodiment of our invention
  • Fig. 3 is a detail view of the means for ad-y justing and locking the visor-reflector
  • Figs. 4 and 5 are views of a modification
  • Figs. 6, 7 and 8 are views of another modification
  • Fig. 9 is a perspective view, partly in section, showing a'hollow prism.
  • FIG. 1 designates a pair of electric lamp bulbs supported within a lower reflector 11 at opposite sides of the same. This reflector faces upwardly and its open upper side is covered by a lens 12.
  • an upper reflector 13 Mounted ou the lower reector is an upper reflector 13 of suitable shape to receive the direct as well as the reflected rays from the lower lamp chamber and *reflectthe same out through the usual front lens or glass 14. It will be understood that any suitable system of lenses may be employed. It will be observed that with our system of double rlectors, but a very small quantity of the dn'ect rays will be projected out through the front lens and those rays that do escape directly through the 'front lens willbe directed 'upwardly and thus be rendered ineifective AssIGNoRs To .IosEPII C. TREES, or PITTSBURGH,
  • a v1sor 15 which is adapted to be swung down to a position against the lens 14 or to be swung upwardly to any desired position, means being provided for locking the visor in its adjusted position, said means consisting, for example, of a rod 16. extending to a point within easyv reach of the driver and attached to a simple form of locking ratchet 17.
  • the inner face 18 of the visor issilvered ortreated inany other suitable manner to produce a rellecting-surface.
  • the visor ⁇ When the visor ⁇ is swung down against the lens, it acts simply as ay visor, but when se l surface will throw the rays upwardly and forwardly in such manner as to illuminatea road-sign or other object located too high for illumination by the rays directav ly from the main reflector 13. In this way, the visor is adapted to be used inv the manner of a spotlight. It. will be understood that this spotlight visor may be;l employed with advantage on other types of headli ht.
  • a hollow prism as shown in Fig. 9, instead of 10o Int e modiicationshownin Figs. 4 and 5, we use instead of the two lenses a prism the solid prism illustrated.
  • the vertical side' walls 23 will be silvered or otherwise treated to produce a reflecting surface to thereby avoid losing any light through absorption by the side walls.
  • This hollow prism may be built up of Hat plates of glass fastened together at their corners by cement or otherwise.
  • the lens 12 with a translucent area 22 immediately above the lamp bulb; the object of this is to prevent the image of the incandescent. lament from being reflected out through the Jfront lens to thereby avoid any possibility of being blinded by the lilament at whatever angle a person approaching the headlight may view the headlight.

Description

Jan. 19 1926.. 1,570,589
R. P. MCCURDY ET A1.
HEADLIGHT Filed May 23, 1924 2 SheetS-Sheet l Snom/dom,
Jan., 19 1926. 1,570,589 i R. P. MCCURDY ET AL HEADLIGHT Filed May 25, 1924 2 Sheets-Sheet 2 if., a
Patented Jan. 19,- 1.9.26.- I l UNIT EDI-,11S TSE A1,570,589 A11.6.11;2NT OFFICE.
ROBERT I. MQCURDY, oF PITTSBURGII, PENSYLVANIA, AND FREDERICK W. HoCII- STETTER, 0F DAYTON, OHIO, PENNSYLVANIA.
Application mea my 23,
To all lw/zom t may concern.'
Be it known that we, ROBERT P. MOCUR- DY, a resident of Pit-tsburgh, county of Allegheny, and State of Pennsylvania, and FREDERICK W. HoCHsTETTER, a "resident off Dayton, county of Montgomery, and` State of Ohio, Citizens of the United States of America, have invented certain new and useful Improvements. in Headlights, of which the 'following is a full and, clear specification.
One object of this invention is to provide a headlight structure which will illuminate the roadway by indirect li hting, to thereby eliminate glare; and a-not er object of the invention is to provide a visor which shall not only be adjustable with respect to the front lens, but also be capable of use as a reflector to throw some of the rays -of light upwardly and forwardly to thus enable the visor to be used-as a sort of spotlight for' reading signs along the roadway, as more fully 4hereinafter set forth.
In the drawing- Fig. 1 is a front view and Fig. 2 is a vertical longitudinal sectional view showing one embodiment of our invention;
Fig. 3 is a detail view of the means for ad-y justing and locking the visor-reflector;
Figs. 4 and 5 are views of a modification;
Figs. 6, 7 and 8 are views of another modification;V
Fig. 9 is a perspective view, partly in section, showing a'hollow prism.
Referring to Figs. 1, 2 and 3 of the draw- ,ing annexed, by reference-characters, 10 designates a pair of electric lamp bulbs supported within a lower reflector 11 at opposite sides of the same. This reflector faces upwardly and its open upper side is covered by a lens 12.
Mounted ou the lower reector is an upper reflector 13 of suitable shape to receive the direct as well as the reflected rays from the lower lamp chamber and *reflectthe same out through the usual front lens or glass 14. It will be understood that any suitable system of lenses may be employed. It will be observed that with our system of double rlectors, but a very small quantity of the dn'ect rays will be projected out through the front lens and those rays that do escape directly through the 'front lens willbe directed 'upwardly and thus be rendered ineifective AssIGNoRs To .IosEPII C. TREES, or PITTSBURGH,
IIE'ADIIGIIT.
1924.. semina 715,408.
in having any binding `action on the eyes of approaching drivers. Practically all of the rys'from the light source will be caught by the upper reflector and projected through 'the Vfront lens in the form of a light flood, .thereby entirely eliminating the objectionablevglare which results from direct light. We have shown a plurality of light sources within the reflecting area, but it will be understood that yone bulb alone may be used; ther object in using a plurality of bulbs is toincrease illumina-tion and compensate for the loss of light that occurs through indirect lighting. 4
Upon the front, upper side of the lamp housing, we hinge a v1sor 15 which is adapted to be swung down to a position against the lens 14 or to be swung upwardly to any desired position, means being provided for locking the visor in its adjusted position, said means consisting, for example, of a rod 16. extending to a point within easyv reach of the driver and attached to a simple form of locking ratchet 17. The inner face 18 of the visor issilvered ortreated inany other suitable manner to produce a rellecting-surface.
When the visor` is swung down against the lens, it acts simply as ay visor, but when se l surface will throw the rays upwardly and forwardly in such manner as to illuminatea road-sign or other object located too high for illumination by the rays directav ly from the main reflector 13. In this way, the visor is adapted to be used inv the manner of a spotlight. It. will be understood that this spotlight visor may be;l employed with advantage on other types of headli ht.
19 which is constructed to present a flat surface 20 to the light source and has its rear Vio? 'i side 21 inclined upwardly and forwardly and silvered to rovide a reflecting surface. It
will be un erstood that we may use a hollow prism, as shown in Fig. 9, instead of 10o Int e modiicationshownin Figs. 4 and 5, we use instead of the two lenses a prism the solid prism illustrated. Whether hol` low or solid, the vertical side' walls 23 will be silvered or otherwise treated to produce a reflecting surface to thereby avoid losing any light through absorption by the side walls. This hollow prism may be built up of Hat plates of glass fastened together at their corners by cement or otherwise.
ln Fig. 2 and in the modification shown in Figs. 6, 7 and 8, we provide the lens 12 with a translucent area 22 immediately above the lamp bulb; the object of this is to prevent the image of the incandescent. lament from being reflected out through the Jfront lens to thereby avoid any possibility of being blinded by the lilament at whatever angle a person approaching the headlight may view the headlight.
What we claim is:
A headlight embodying a lower reflector Jfacing upwardly, light sources near the peripheral edge of the reector, and an upper secondary retlector positioned above thc light sources to receive the light rays from the lower reflector and project them forwardly, a lens disposed between the two reA iiectors, said lens having a translucent aren immediately above the rear light source.
In testimony whereof we hereunto aiix our signatures this 16th 'day of April 1924.
ROBERT P. MGCURDY. FREDERICK W. HOCHSTETTER.
US715408A 1924-05-23 1924-05-23 Headlight Expired - Lifetime US1570589A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3142444A (en) * 1961-08-07 1964-07-28 Hotel Doriguzzi Vehicle fog light
EP1077158A1 (en) * 1999-08-19 2001-02-21 Peugeot Citroen Automobiles SA Vehicle signalling and/or lighting device and vehicle comprising such a device
FR2797614A1 (en) * 1999-08-19 2001-02-23 Peugeot Citroen Automobiles Sa Light assembly for car comprises control unit which controls the prisms orientation and light distribution to obtain different light beams depending on e.g. climatic conditions, traffic and route followed
US20080285295A1 (en) * 2005-12-12 2008-11-20 Koninklijke Philips Electronics, N.V. Led Collimator Element for a Vehicle Headlight with a Low-Beam Function

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3142444A (en) * 1961-08-07 1964-07-28 Hotel Doriguzzi Vehicle fog light
EP1077158A1 (en) * 1999-08-19 2001-02-21 Peugeot Citroen Automobiles SA Vehicle signalling and/or lighting device and vehicle comprising such a device
FR2797614A1 (en) * 1999-08-19 2001-02-23 Peugeot Citroen Automobiles Sa Light assembly for car comprises control unit which controls the prisms orientation and light distribution to obtain different light beams depending on e.g. climatic conditions, traffic and route followed
FR2797677A1 (en) * 1999-08-19 2001-02-23 Peugeot Citroen Automobiles Sa LIGHTING AND/OR SIGNALING DEVICE FOR A VEHICLE, AND VEHICLE PROVIDED WITH SUCH A DEVICE
US20080285295A1 (en) * 2005-12-12 2008-11-20 Koninklijke Philips Electronics, N.V. Led Collimator Element for a Vehicle Headlight with a Low-Beam Function

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