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Publication numberUS1394319 A
Publication typeGrant
Publication dateOct 18, 1921
Filing dateJan 15, 1920
Priority dateJan 15, 1920
Publication numberUS 1394319 A, US 1394319A, US-A-1394319, US1394319 A, US1394319A
InventorsCharles A Mcneal
Original AssigneeFred Earl Fuller
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Headlight-reflector
US 1394319 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

C. A. McNEAL.

lHEADLIGHT REFLECTOR. APPLIcAnoN FILED 1AN.15.|920.

11,394,319, Patented Oct. 18, 1921.

UNITED STATES PATENT OFFICE.

CHARLES A. MCNEAL, OF COLUMBUS, OHIO, ASSIGNOR OF ONE-HALF TO FREI) EARL FULLER, OF COLUMBUS, OHIO. v

HEADLIGHT-REFLEGTOR.

Specification of Letters Ilatent.Y

Patented Oct. 18, 1921.

l Application led January 15, 1920. Serial No. 351,551.

State of Ohio, have made a certain new and useful Invention in Headlight-Reflectors; and I declare the following to be a full, clear, and exact description of the same, such as will enable others skilled in the art to which it appertains to make and use the mvention, reference being had to the accompanying drawings, and to letters or fi ures of reference marked thereon, whic form a part of this specification.

Figure 1 is a central cross Section of the invention.

Fig. 2 is a face view of the same.

Fig. 3 shows a detail edge view and a detail perspective view of one of the reflector sections.

The invention -has relation to' headlight reflectors, for automobiles, or for use whereever a headlight would be needed, and has for its object to provide an improved reflector wherein glare will be eliminated and the field or cone of reflected light will be made up of elements or rays equally distributed or appearing as equalized throughout the same, or whereb the field of reflected light thrown upon tlsie roadway will appear equally illuminated throughout.

The invention consists in the novel construction and combinations of parts, as hereinafter set forth.

In the accompanying drawings illustrating an embodiment of the invention, the numeral 2 designates the reflector of concavoconvex form, and whereon are set, fixed or molded, or wherein are stamped a plurality of or multiplicity of plane-surface reflector sections 3, 3, covering the entire surface of the reflector and forming the reflecting surface thereof by suitable adaptation. These reflector sections are res ectively of comparatively small size and) are arranged in annular series. The sections as shown are polygonal in form and interfitting.

The sections 3, 3, are arranged respectively or individually at the proper an le to reflect the rays of light from a lig t Source or bulb 4, located at the focal point approximately of the reflector, to form a field of reflected light or a cone of light, the upper limit of which will lie below the eyes of an approaching driver and the lower limit of which will lie upon the roadway sufficiently close to the headlight to properly illuminate the road, this being accomplished by giving each individual reflector section 3 an inclination with respect to the axis of vthe reflector which will differ from that of the remainder of the reflector sections or any one of said remainder. Thus the angle of incidence of a ray of light made with each unit will be different from that made with any other one in a section taken in a plane perpendicular with the axis of the reflector.

The reflector sections 3, being arranged as stated, will diffuse the rays of light reflected therefrom, whereby the field or cone of reflected light will have the elements or rays thereof appearing as equally distributed or substantially equalized throughout the same, thereby avoiding the formation of a central bright spot of reflected light and alternate light and dark rings surrounding said spot, upon the roadway, andV which are unavoidable in the concave or parabolic reflector as adapted for use as a headlight. In practice the concave or parabolic reflector so adapted for headlight use, throws out a cone of reflected light, which is so positioned as to throw a glare into the eyes of an approaching driver, and into the eyes of a driver of a passing car going in the opposite direction, and applicant by the use of the reflector sections arranged as stated, avoids this glare, Owing to the comparatively small area of each reflector section, the diffusion of the reflected light rays incident thereto, will be limited, but will be sufficient to break up the aforesaid central bright spot and the light and dark rings surrounding said spot, and equalize the illumination.

. I claim:

A headlight reflector of concave form, made` up of a multiplicity of plane units angularly related to each other, said units being individually of comparatively small size and each having an inclination with respect to the axis of the reector differing In testmon whereof I ax'my signature froml thathof aly other unit, sad unilts disin presence o two witnesses. ose in t e re ector so as'to re ect t e ra s Ef light from a Acommon source located t CHARLES A' MQNEAL 5 the focus of the reflector downwardly and Witnesses:

forwardly in a substantially definite cone of J. L.l BACHMAN, equally distributed light rays. LEE F. JOHNSTON.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2908795 *Mar 3, 1955Oct 13, 1959George E BranstromHeating devices
US4021659 *Oct 30, 1975May 3, 1977General Electric CompanyProjector lamp reflector
US5117336 *May 24, 1991May 26, 1992Hella Kg Hueck & Co.Working spotlight, particularly for motor vehicles
US5272408 *May 9, 1991Dec 21, 1993Gte Products CorporationLamp and reflector assembly
US5678921 *Dec 6, 1994Oct 21, 1997Bright Star Industries, Inc.Flashlight
US6053623 *Mar 1, 1999Apr 25, 2000New Option Lighting, LlcWaterproof light with multi-faceted reflector in a flexible enclosure
US20060268576 *May 24, 2006Nov 30, 2006Omron CorporationLight emission source and light emission method using light emission source
DE3930746A1 *Sep 14, 1989Mar 28, 1991Hella Kg Hueck & CoScheinwerfer, insbesondere fuer kraftfahrzeuge
EP0253243A1 *Jul 4, 1987Jan 20, 1988Valeo VisionReflector for motor vehicle headlamps with a modified main beam
EP1035370A2 *Jan 17, 2000Sep 13, 2000Schott Auer GmbHOptical design of a reflector for reflecting light rays
EP1643186A1 *Jan 17, 2000Apr 5, 2006Schott AGOptical design of a reflector for reflecting light rays
WO1992017733A1 *Oct 2, 1991Oct 15, 1992Gte Products CorporationLamp and reflector assembly
WO1999045314A1 *Mar 2, 1999Sep 10, 1999New Option Lighting, LlcWaterproof directed-beam light system
Classifications
U.S. Classification362/348
International ClassificationF21V7/00
Cooperative ClassificationF21S48/1376
European ClassificationF21S48/13D12