US1578721A - Antiglare device for headlights - Google Patents

Description

'March 30 1926.

, 4 2 4 X. CvXXwNM L. DIESEL ANTIGLARE DEVICE FOR HEADLIGHTS Filed sept. 12I 1925 L Patented 3o, 192e.

TES

UNITEDsTA Laici-.matr DIESEL, 0E CHICAGO, ILLINOIS.

l `1,578,721 PATENT OFFICE.`

g ANTIGLARE DEVICE 'FOR' HEADLIGHTS.

Application-filed September 12, 1925. Serial No. 55,909.

To all whom, t may concem:

Be it known that LAMBERT DIESEL, a citizen of the United States, vresiding at Chicago, in the county of Cook and State'of Illinois, has invented `certain new .and useful Improvements in Antiglare Devices for-Headwithout appreciably lessening or diminishing the amount of light emittedfrom the lamp. y

Specifically, a device of my invention in- A"cludes two discs to be placed over the lightemitting opening of the lamp and made of' translucent paper o-r other translucent material, with one disc continuous and unbroken and the' other disc having a plurality of apertures or holes distributed over the same and covered by the non-perforated g other disc.

. the discs and covered on one side by the non-- In the accompanying drawings- Fig. l is a front View of a headlight equipped with anl anti-glare device of my inventlon;

Fig. 2 is an enlarged vertical sectional vie-w on line 2 2 of Fig. l; and

Fig. 3 fis a fragmentary view to illustrateed'etail's of structure to be hereinafter described. I

xIn Fig.2 of the drawings, I have shown just enough of the headlight structure to illustrate the application of my invention thereto. In said figure, 1 indicates the outer casing or shell-.of the lamp, 2 the reflector the-rein, and 3 the .ring for clamping the headlight glass or lens 4 -in place over the light-emitting opening otl the lamp.

The device of my invention comprises two relatively thin translucent discs 5, 6. These 'discs may be made .of paper or other translucent material which is not transparent and `which will transmit light without appreciably dimming thesame.

One of the discs, for instance the fone 6, is provided with'a plurality of" relatively small holes orapertures ^7v distributed over perforated otherdisc 5 when the two discs -are placed together and extend over the light-emitting opening of the lar/np, as shown in Fig. 2. By this arrangement there is only one layer of disc material covering the holes 7 and two layers 4'of disc material elsewhere. This allows more light to pass'th-rough the discs at the holes than elsewhere, and as the holes are relatively small and are regularly distributed over the entirev areaof the disc- 6, the glare of the lamp will'be eliininated without appreciably dimming or diminishing the amount of light emitted therefrom. .This is an important advantage for automobiles, in that it allows night driving with the 'bright lights turned on to light up the roadway without the Vblinding glare as heretofore. j

The discs 5, 6 are usually placed inside of the glass or lens 4 to protect'them from injury and from the weather, and are clainpedjin place between the lens 4 and outer edge of the lamp opening by the ring 3, as shown in Fig. 2.

The discs provide a simple and inexpensive anti-glare device and one that-may be easily and readily applied and installed either to lamps when first placed on the car or afterwards. Instead of being made from paper or other like material, the discs may be made of glass for use in place ofthe lens 4. In such case, the outside "disc" 5 -takesthe place ofthe lens 4.

I claim asv my invention: 1. An anti-glare device for headlights,

comprising two relativelythin flat discs of translucent material, said discs being placed one against'the other and being substantially equal in size so as tobe coextensive, one ot' said discs being imperforate, and the other disc having a plurality of holes distributed over the same and covered by the other disc.

2. An anti-glare device for headlights,o

comprisingvtwo relatively thin flat discs ot translucent paper material, said discs being placed one against the other and being substantially equal 4in size so as to be'coextensive, one of said discs having a plurality of relatively small holesof 4substantially the same size distributed regularly over the same and covered by the other disoso that there is a single layer of disc material at the Vholes andv a double layer of said material elsewhere...

In testimony whereof he alixe's his signature this 17th day of A ril, 1925. e LAMERT DIESEL.

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