US1199071A - Non-glaring headlight. - Google Patents

Description

lM. L. HECKERT. NON-GIQARING HEADLIGHT.

APPLICATION FILED NOV. I9, 1915.

Patented Sept. 26, 1916.

ff? MM iilbliTlllienfrente centen.

` Gl? LVOUNT CARMEL, PENNSYLVANIA.

lle it known ill :i citleen oi" lili-e lin liiount if i lieve innipro *Je* oef wlilcli rented certain ne" er@A niente in Nonlllering l the lilbiiring :i i

'Ellie iniei'ition re :is nre used on ziiitoinol; and other vehicle-e :i powerful benin oi' .light so dirvfi'fshine full in tl evee ci ,A the opposite dii tion Tine ,A

blinding,v :ind highly alieno Y eieete, and While many attempts lieve been mede to overcome this objection oy the use of div mere of Y: ritme kinds, er c. here frequenti r flied in Cutting en 1 light to such :i ent that the roadway over which tbe v cle is trnvelinggj not prop orly illuminated. Tlie glare :ibore referred to is flue largely to tlie incl: that the reflectors; employed :ire so shaped ne to the light upwardly :is well :le lion t is 'the object of 'tine z 'iree'it ii limit the tielil ci illnniin l r Y ducing its inteiisity, end confine f reiected rays to en eren below .i f the reliector. 'This iceoiplislieil shaping tbe upper part of l' :ill rays imffinginf: thereon will be thrown. don'nvmi'dly meros-e tbe seid :if 'in this way5 the field in close profi' nity o the lmnp is brilliantly lighted, but llie nl yor portion of the light rays :ire So iinflineil ne to Strike the ground sliort distance away. The lower nrt of tbe reliecti'ir le also preferably so shaped that the light therefrom ie t'l'ircwn more directly dor-inward tlien is the vwith tbe parabolic reflectors new in use.

In order that the invention mcy be rendily understood, l have Illustr ted one ein bodinient thereof in tlie :ic-eonj drawings, in which,

Figure l is e centre` through my is a front vie Referring to i improved llenoV the usuel eosin reflector Patented Sept. 2% 1916.

. en .flied lievi-mbar 19, w15. Serial 'o. 62,335.

(l tics lump.

My improved reflector consists of :i rela,-r

Vtively smell gera-bolic cen `rfi-l portion 7, wllicli syn'inietrifel abouttlie aXiS-,-zl/i, and in lille 'focus ci which the lamp 6 is preferably created.

the parabolic portion 'i' of the reflector projects zi concentmtedv beam `of substantially parallel rays, es indicated atlS.

As above mentioned, the part or" the reflector ebove the parabolic portion 7 is so shaped as to throw the llffglit rays downwerdly,A In the embodiment shown in the drawing', this is ecomplished by providing ziv Series of :irc-shaped concentric reflecting bande or strips 9, separated by other bende or strips 9a, which are so disposed es not to be directly illuminated by the lump.

By reference to Fig. l, it will be seen that the blinds or surfaces 9 are disposed at progressively varying angles to the exis 'the :ingle are given :t decidedly downwardly inclinedv direction, as indicated :it l2, in Fig.' 1.

lt will thus be seen that the reflected rays from both the upper and lower portions of tire reiector are projected at an angle to the exis meer: and in the seme general downward direction, while :i small central 'concentratedbeem is thrown by the parabolic portion ci the reliector in a direction parellel with suoli axis. Assuming the axis to be liorizontelIn it is 'therefore obvious that the nniinfvolmne of light strikes the ground within e short distance in front oltliereilector, vgbile et greater distances, none' of the light rays extend above the level of the Source of light.. llQftlierefore, the heed lights are ,placed at the usuel lunghe;'the'V rigtvs are thus prevented romubelng v1;

'llie result `oi this is that inltofthe eyes of pedestrians and drivers of 1 apron-ching vehicles.

V`tion/'sv roim'ding said center and both oreflect `the rays' downwardly at an 2.- A headlight reflector of circular shape inclA e. `source of light at the center thereof, the `portion ofthe reflector above the said light being formed of e series of arc-shaped `concentric: reflecting bands arranged at any A. gles tov each other andso disposed as to direct the rays downwardly.

3.1A headlight reflector of parabolic shape, ande source of light `in the focus 4`.15,13:ifip cugti'on.of the inner surface of eliectolgiebove 'the light being formed of :i series of arc-shaped `concentric reflect#` i ing bends disposed at progressivelyY varying i angles to the axis vof the reflector,` nndzso i arranged :is to direct the rays downwerdly,. el. In a hez'idliglitythe combinationwith n reflector` having, in general,` ai parabolic shape, of e source of lightin the focus the1eo,the centra-l portionof suehreflector being `i substantially true paraiboloid deslgned lto` project a. beam of; parallel rays, L

the upper portion of seidl reflector compris# ing angularly disposed reflecting bends, and the lower portion having a. smooth sui-farce designed to reflect the light rays downwardly.

In testimony whereof I aflix my signature in presence 0I" twowitnesses. y

Y MARTIN L. HECKERT. Witnesses :1

BENJ. IVILLIAMS,

J. M. R

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