US 1462946 A
Description (OCR text may contain errors)
July 24, 1923.
c. STEPHENS ANTIG-LARE DEVICE Filed Dec. 2 1921 W/WHESSES 3 JFi CLARENCE srm nmw's, or CLAY CITY, INDIANA.
Application filed December 2S, 1921. Serial Ho. 525,4l29.
'1 0 (ZZZ whom it may concern.
Be it known that I, -CLARENCE STEPHENS,
a citizen of the United States, residin at Clay City, in the county of Clay and tate of Indiana, have invented certain new and useful Improvements in Antiglare Devices, of which the following is a specification.
This invention relates to an anti-glare device and has for its object the production of a simple and efficient means for absorbing or cuttin oil the upwardly extending rays of light from the head light of an automobile or other vehicle.
Another object of this invention is the production of a simple arrangement of light absorbing surfaces for absorbing the light at proper points in the reflector of the. lamp housing for cutting otl' the upwardly directed rays of light.
Other objects and advantages of the present invention will appear throughout the following specification and claims.
In the drawings:
Figure'l is a front elevation of the lamp housing.
Figure 2 is a vertical section through the housing, showing the arrangement of the light absorbing surfaces.
By refcrrin to the drawings. it will be seen that l (esignates the semi-spherical body of the lamp reflector. within which is mounted the lam 2 in any suitable manner, at a point centrally of the reflector and atv a point well Within the reflector. as shown in re 2. he inner face of the reflector is divided into an inner circular zone and an outer annular zone, the lower half of the outer annular zone being rendered non-reflecting and the upper half of the inner circular zone being rendered non-reflecting, as shown in Figure l. The non-reflecting or lightabsorbin portion of the outer annular zone being indicated at 3 and that portion of the inner circular zone being indicated at 4. The lower edge of the non-reflecting portion 4, as shown in Figure l is on the same plane as the upper edge of the non-reflecting portion 3 of the outer annular zone. It should be understood that any well known light absorbing or non-retlecting material ma be used with the present invention wit out departing from the spirit thereof.
It is obvious that the only rays of light, which will be reflected out of the reflector are the rays which-strike the reflecting sur- 'tion.'
faces 5 and 9. These rays from the reflectmg surfaces 6 and 9 will be reflected horizontally and downwardly, as will be hereinafter more fully described. The rays of 30 light which strike the surfaces 3 and 4 will of course be absorbed and as these re s of light, arc the rays which are reflect e upwardly cousin glare, when the lamp'2 is positioned as s own in Fi re 2 of the drawings, all lare from the eadlights will be eliminate Q By referring to Figure 2 it will be seen that the rays 5 from the lamp 2 which are thrown upwardly against the reflecting surface 6, will, owing to the position of the lamp 2, be cast downwardly as indicated at 7. The rays 8 from the lamp 2 will be cast downwardly against the reflecting surface 9 of the inner circular zone and Wlll then be reflected outwardly and downwardly, owing to the. position of the lamp 2. The reflector surfaces and the lamp 2 are so arranged as to prevent any of the rays from -Sbeing thrown upwardly, and at the samttime 50 cause all of the rays of li ht to be thitiOWn out. horizontally or in a ownward-direc- From the foregoing description, it will be seen that the present lamp and refiegtoris 85.
especially adapted for use on automobiles, for the purpose of preventing the throwing of light in the face of the driver of a passing vehicle.
What is claimed is:
1. A. lamp reflector comprising a concave inner face having an inner circular zone and an annular outer zone, the inner circular zone having anon-reflecting surfaceforined in the upper half thereof, and the outer an- 98 nular zone having anon-reflecting surface formed in the lowcwhalf thereof.
1 2. A lamp refiectoicomprising a concave inner face, said face divided into an inner circular zone and an outer annular zone, the: 100
inner circular zone 'havin a reflectingsure face in the bottom half 1: erect and a nonreflecting surface in the upper half thereof, the outer annular zone having a. reflecting surfacein the upper half thereof and anon- 10$ refiectin sur ace in the lower half thereof,
and the ower edge of the non-reflecting sur face of the inner circular zone being on tl l 8 same horizontal plane with the upper edge] of the non-reflectin annular zone, as an tied.
for the purpose speci surface of the outer, 1,10
3. In combination with a substantially semi-spherical lamp reflector including an inner circular zone and an outer annular zone, the inner circular zone having a re?- fiecting surface in the bottom half thereof and anon-reiiectin surface in the upper half thereof, the outer anr alar' zone having a reflecting surface in the upperhalt' thereof and a non-reflecting surface in the lower half thereof, of L ump in said reflector (lisyosed at a predetermined position in relation to the reflecting areas of the inner circular zone anrl the'outer annular zone. so that rays of light from said leimp striking sairl reflecting surfaces will be cast outwardly, 15 horizontally and downwardly.
In testimony whereofI aflix my signature in presence of two witnesses.
' CLARENCE CTEPHENS Witnesses: