US1332139A - Headlight - Google Patents

Description

J. Wl NICHGLS.

HEADLIGHT.

APPLICATION F|LED1uNE1,19|9.

1,332, 1 39. Patented Feb. 24,1920.

UNITED sTATEs PATENT/OFFICE.

JON lW. NICHOLS, OF LOS ANGELES, CALIFORNIA.

HEADLIGHT.

Specification of Letters Paten-t.

` ratenteqreb.24,19zc.

Application led Iune16, 1919. Serial No. 304,622.

To all whom it may concern.'

Be it known that I, JOHN W. NICHOLS, a citizen of the United States, residing at Los Angeles, in the county of yLos Angeles and State of California, have invented new and useful Improvements in Headlights, of which the followin is aspeciication.

This invention r ates to a headlight and pertains particularly to means for dlstributin the projected light. j It is desirable -in headlights for vehicles to so distribute the light over the field to be illuminated that the intensity is greatest in the immediate ath of travel and less intense over the field adjacent thereto. Another desideratum is that of so projecting the'light that pedestrians, drivers and others in the roadway will not be blinded by theglareof the light. It is the `principal objectof this invention to provide means to accomplish the above mentioned results.

These o jects will be more sponding accom lishments of my invention from the following detailed .description of a preferred embodlmentv thereof. For the v purpose of-this description reference is had to t e accompanying-thawing, in which:

Fi re 1 1s a-ve ical section through a head `ght; Fig. 2 is a\view looking in the vdirection of the arrows 2 2 of Fig. 1; Fig. 3 is a section taken on the line 3.-3 of Fig. 1; and Fig. 4 is a plan view of the headlight. Referring more particularly to thev drawing, a lamp casin is indicated b 5. This easing vis prefera l ,metallic an upon its inner sur ace so as to.' I mirror finish. Extending throug the rear of the casing is a' lamp socket v6 for support-` ing 'a lamp 7. ab jdisposedwithn the lamplcaslng. 4

'Iyhe invention resides particularly in the lamp casing and especially in its form. The lrear of the lampl casin comprising the re- Hector roper 1s ,fpreerably of for gli opening is forme therein, through which-'the lamp socket 6 extends. The casing extends forwardly fromthe re- Hector portion to form a tunnel having divergent side walls 11 and 12 and atparallel Vor substantially .arallel top and bottom walls v14 and 15. heV tunnel is thusof general funnel shape with the small end havof the top l fully yu nder- -stood,l as will also othrobjects and corre- `there is a polished roduce a Aglass lining 8 is preferi yan extension vhaving arabolic `thereo have hereunto subscribed ing the lamp 7 disposed thereon. By referring to Fig. 1 it will be noted that the lip wall 14 overhangs the lip of the bottom wall at the mouth.

Light is projected forwardly b Hector portion 9, those rayswhich dye pinge upon the funnel wall lissuing at the forward end and spreading in fan form horizontally. There will of course, be some rays whichwill impin upon the-side walls and be reflected .there ducing a field of illumination of less vintensity than the central eld. The top wall 14 prevents the projection upwardly above the line ofv vision lof pedestrians of any directly reiiected rays from the lamp. In order to still further cut downthe intensity of any illumination in the line of vision, thebottom wall 1 5 is overlappedby the top wall. Thus,

the renot imrom to the sides, prol the overhang of the top-wall shuts out cerforms no part of my invention, although ad vantageous for-1 certaln purposes.

It is obvious that I have provided aheadlight which will project rays forwardly confining the direct projected rays, which are of greatest intens't to a wide horizontal fan lshape of small eight; in addition to this ntle yillumination to the sides of the centra eld this illumination being. se-

1 cured by indirectreflection. Furthermore,

avery important factorl'is the illumina.-

tibn in the line of visionof pedestrians, this being still less Ain intensity than `the side illumination.

What I claim is i A headlight comprisingin combination, a.

casingprovided with a concave reflector and l substantially ilattop and bottom walls/for passage of the light rays therethrough, the walls of said extension merging with said reflector and having an upper l1p| overhanging `the lower lip anda light rdisposed at the rear of said casing in front fsaid reflector so that 'the rays will be. projected forwardly.

the foregoingl I` In witness that I .claim my name this 9th day of June, 1919;

JOHN W. NICHOLS.`

Images