1. No category

Jian. EL 192%.
F. @o HARFRMAN
1,6575502
HEADLIGHT
Filed Feb. 4, 1926
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Patented Jan. 31, 1928.
UNITED STATES
FFlÜE.
FRANK BENJIMAN HARRMAN, OF DECATUÍÃ., ILLBN'OIS.
nnnnmenr.
Application filed February 4, 1926.
Serial No. 85,993.
'l‘his invention relates to new and useful tui'e 8 to align with the central orilice in
improvements in headlightsn and has for vits the casing ¿l ‘for the passage of the incan
principal object the provision of means to
descent bulb socket 9 so as to dispose the
deflect certain rays of light from the illumi
incandescent bulb 1() in front of the reflec
tor 7 as shown. Any desired medium may
N nating means to inipinge a lens of a partic
ular type whereby a flood light of such be employed for varying the position of the
dimensions will be sent from the headlight incandescent light axially of the reflector 7.
as to thoroughly illuminate objects laterally The outer end of the reflector is provided
ot the headlight when either driving for with an outturned flange 11 having a de
in vvard or in making turns.
a
pressed circumferential groove therein for
Another object of the- invention resides the reception of a cushioning ring 12, and
in the provision of a headlight having a the free edge of this flange is turned at
heini-spherical lens in combination with right angles to be received in the annular
means tor dellecting and reflecting raysct groove formed by the rim of the headlight
'1W light to all Surfaces of the lens1 provision cooperating With the end 5 of the casing.
being made in the combination to permit
rl‘he lens 13 ot the headlight is substan
substantial unobstructed passage of certain tially hemispheric to closely resemble the
Öl? the rays to illuminate a substantial -dis cornea ot' the human eye, and comprises a
tance ahead, While the direct rays of light laminated structure consisting ot inner and
are out ed' by the lens to prevent any blind outer hemispheric clear glass shells 14 and
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70
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ing glare.
_
15 respectively and an intermediate translu
A further object ot the invention resides cent hemi-spherical lens 16 iitting closely to
in the provision ot a headlight having a one another. The edge ot the shell 15 is pro
heini-spherical lens to resemble a human vided With an outwardly extending flan-ge
e e.
17 adapted to be received in the groove
y@ther objects and advantages of the inven formed by the headlight rim, While thel shells
tion will become apparent during the course 14 and 16 have no flanges and are held in
of the following description.
-.
Contact Witheach other and with the shell
ln the accompanying drawing Whic 15 throughout their areas in a manner which
il lorins a art of thedescription and wherein will be presently described. rll‘he interme
255
4like nuäerals are employed to designate diate translucent lens 16 may be of the milky
like parts throughout the views.
White type, vitreous or ot any other mate
ll‘igure 1 is a longitudinal section of the rial which -will render the lens non-glaring.
headlight employing my invention.
'
'l‘he central portion 18 of any of'these
Figure 2 is a transverse section of the shells 14, 15 or 16 is shaded as shown in
same talren on the line 2--2 ot Figure 1, Figure 3 to imitate the pupil ot an eye and
and
lligure 3 is a ‘front elevation ot1 the head
to cut oil direct rays 'from the illuminating
means, although ll prefer to stamp an irides
light vvith parts ol3 the lens broken away to cent color upon the intermediate lens 16.
show the laminated structure thereof.
Arranged in spaced relation to the shaded
Referring now more in detail to the draw» area. 18 is a second shaded ring-like area 19
ings and wherein for the purpose ot illus~
tration, ll have shown the embodiment oit
my invention which is at present preferred,
the numeral ¿l designates the headlight cas
or’ substantially circular configuration but
having its inner edge resembling a hypocy
ing ot any desired construction, although it
tivo shaded areas 18 and.19.
should Í'ollovv more or less closely to a he1ni~~
‘i «
cloid to resemble the iris ot an eye and to 10@
provide a translucent space 20 between the
~
Between the illuminating ineans 10 and
spheric or parabolic configuration asis cus~ the hemi-spheric shell 13, a crystalline shell
toniary. The forward end 5 ot this casing 21 is positioned with its outer edge received
is slightly enlarged or flared to cooperate and clamped between the flange 1l ot' the
with a detachable rim 6 in providing an reflector' and the -flange 17 ot the lens 15
annular channel to receive parts of the head- l by means ot the usual detachable rim 6.
Ml
light to be hereinafter described.
A rel-lector 7 ot any desired type is posi
tioned in the posterior part of the casing-¿l
and is equipped with a central flanged aper
ln
this connection it will be observed that the
edges ot the lenses 14 and 16 abut `the shell
21'to maintain theseV lenses stable. _This
crystalline shell which is mede of clear glass,
105
Leer/,coa
is substantially trumpet shaped to ílane out Hating means to said shaded portion of said
wardly and is hollowî for the purpose of hemispherical lens and to, deflect other rays
mounting within its inner truncated end 22 _through other portions of said hemispherical
a concavo-convex lens 23 directly in front of lens, and a fabric screen positioned in front
70
the incandescent bulb 10. This concave-con of said concavo~convex lens.
vex lens has its posterior concavity greater
A headlight comprising the combina
than its anterior convexity so as to deflect tion of a casing having a reflector. illuminat
rays of light throughout the entire area ol" ing means, a hemispherical translucent lens
the hemi-spheric lens 13.
In order to com
having centrally disposed spaced shaded
pletely diffuse the light rays deflected by portions separated by a translucent portion,
a crystalline shell positioned between the
illuminating means and said hemispherical
the lens 23,1 locate a circular piece of shot
sill: fabric 24 directly in it'ront of this ‘lens
and attach it- to the shell 21 by crimping the
edge of the fabric and attaching it to the
lens, and a concavo-cxmi'ex lens supported
shell in any suitable manner.
rays to said shaded portions and deflected
by said crystalline shell for directing direct
BU
From the foregoing description, it will rays through the translucent portion ar~
be apparent that. some of the rays of light ranged between the shaded portions.
at. A headlight comprising the combination
from .the incandescent bulb 10 will be de
llected by the concavo-convex lens 23 so as with a casing lhaving a reflector, illuminating
20
to spread or disperse these rays whereby means, a hcmispherical translucent lens har er;
they will be directed to the entire area of ing a central shaded portion, said heinis~
the hemi-spherical lens 1_3 thereby permit plier-ical. lens projecting forwardly beyond
ting the headlight to shed a flood of light- said casing, a trumpet-shaped plain crystal¢
bot-h laterally and forwardly thereof. The line shell positioned in front of said illumí~
most direct rays of light will be cut oil by nating means Within said casing and adjacent
theshaded ortion 1S of the lens 13, but the forward edge thereof, a concave-convex”
some rays will be permitted to pass through lens mounted in said trumpet-shaped shell
the space 2O to illuminate objects a substan and having itsaxis coincident with the ad
tial distance ahead of the light, while the jacent lens, and a fabric screen in front olf'
30
shaded portion 19 indicating the iris will said concavoeconvex lens.
il headlight comprising thc combina~
cut oil other of the light rays which usually
cause the glare. The inner layer 1l o'? tion of a casing havin ‘ a reflector, illuminat
ing means, a hemisp erical shell having a
pansion of the light rays, although if de central shaded portion, a trumj'iet-shaped
the lens 13V serves as a medium tor the ex
35
sired Athis may be eliminated.
Due to plain crystalline shell positioned in l’ront ot 100
the shot silk screen 24 being positioned in
Jfront of the lens 23,' and the lens 16 be
ing translucent, it will be obvious that the
rays of light are thoroughly diffused; the
4.0
lens 16 acting to diiîuse whatever rays of
light that are reflected by the reflector 7
Without passing through the screen 24.
It is to be understood that various changes
said illuminating means to permit passage
of rays from said illuminatingr means to
the entire inner surface of said hemi
spherical lens, a concavoconif'ex lens
mounted in said trumpet shaped shell and
having its axis coincident With the afore
said lens to permit passage of direct rays
from said illuminating means to said shaded
in the size, shape and arrangement of parts portion of said hemispherical lens, and
may be resorted to Without departing from fabric diffusing means positioned in 'front of
said concavo-convex lens.
the scope of the appended claims.
I claim:
6. A headlight comprising the combina
1. A headlight comprising the combina
tion of a casing having a rellector, illuminat~
50 ing means, a hemispherical shell having a
central shaded portion, a lens positioned
between said illuminating means and said
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tion of a casing havin a reflector, illuininatr
ing means, a hemisp ierical lens having .a
central shaded portion, said hen‘iispherical
lens projecting forwardly,beyond said cas
ing, a trumpet-shaped crystalline shell posi~
hemispherical shell to permit passage oit the tioned in front of said illuminating means
direct rays from said illuminating-‘means Within said casing and adjacent the for
to said shaded portion of said hemispherical Ward edge thereof, and a concavo~convex
shell and to deflect other rays through other lens mounted in said trumpet shaped shell
portions of the hemispherical shell, and a and arranged adjacent the forward edge of
sillr screen positioned in front of said lens.' said casing and adjacent the edge ot' said
2. A headlight comprising the combina hcmispherical lens to cause direct forward
tion of a casing havinfr a reflector, illuminat rays ‘from said illuminating means to pass
ing means, a hemisphericalïshell having a to said shaded portion of said hcmispherical
shaded central portion, a concavo-convex lens and other rays from said illuminating
lens stationed between the illuminating means to pass by> deflection through the
means and said hemispherical lens to permit 'other portions of said lens.
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105
passage of the direct rays from said illumi
' FRANK BENJIMLÀN HARltMAN.
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