US1461362A

US1461362A - Nonglare reflector

Info

Publication number: US1461362A
Application number: US585681A
Authority: US
Inventors: James N Lyles
Original assignee: Individual
Current assignee: Individual
Priority date: 1922-09-01
Filing date: 1922-09-01
Publication date: 1923-07-10
Anticipated expiration: 1940-07-10

Description

July 10, 1923. 1,461.362

J. N. LYLES NONGLARE REFLECTOR Filed Sept. 1. 1922 4 and State of Virginia, has

Patented duly 10, 1923.

JAMES N. LYLES, OF ADDISON HEIGHT$, VIRGINIA.

NONGLABE Application filed September To all whom it may concern.-

Be it known that JAMES N. Lrnns, a citizen of the United States, residing at Addison Heights,,in the county of Arlington invented certain new and useful Improvements in Nonglare Reflectors, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to nonglare reflectors, and has particular reference to reflectors of the character indicated adapted for use in connection with automobile headlights.

An important object of the invention is to provide such a reflector with means for eliminating the highly objectionable glare incident to the use of the ordinary parabolic reflectors.

An important object of the invention is the provision of a headlight reflector whereby all objectionable glare is eliminated, while at the same time all of the light from the lamp is utilized and directed upon those portions of the road where itis most needed and desired.

A further object of the invention is the provision of a substantially parabolic refiector which can be made at approximately the same cost as the present reflectors, and will serve the purposes above set forth.

Other important advantages of. the invention will be apparent during the course or the following description.

In the accompanying drawin s, wherein like numerals are employed for designating like parts throughout,-

Fig. l is a vertical sectional view through a headlight, illustrating the invention in use;

Fig. 2 is a face view of the reflector removed from the headlight casing; and

Fig. 3 is a horizontal sectional view through the reflector, taken on line 3-3 of Fi .2.

heferring to the drawings, 5 designates the headlight casing, which may be of any well-known construction. The reflector is indicated by the numeral 6, and same may be stamped from a single piece of sheet metal, as is customary. The lower half of the re fiector is formed substantially the same as the ordinary parabolic reflectors having the usual axis and focal point, and reflecting.

surface 7. The rays of light from the bulb nnrnnc'ron i, 1922. Serial no. 585,681.

8 strike the surface 7 and are projected in substantial parallel relation to each other, as clearly indicated in Fig. 1. The upper half of the reflector is formed of a series of

stepped portions

9, 10, 11, 12, 13, 14 and E0 15 seven being shown, though the number may be increased or decreased as may be found advisable. Each of the steps is stamped outwardly from the reflecting surface, 16, thereby forming in efiect a series 65 of stepped parabolic reflecting surfaces whose focus is such that rays of light striking them from the bulb 8, will be directed downwardly upon the roadway at difierent points slightly in advance of the vehicle. W As will be observed from Fig. l the steps are formed gradually wider and of less depth as they approach the upper part of the reflector. The purpose of forming these steps in this manner is for the reason that the greatest glare directly behind the bulb, and decreases in intensity outwardly. The ends of each of the steps gradually merge into the surface 16.

As will be observed, the steps are an d5 ranged in a horizontal parallel relation, so that all rays of light directed thereon will be reflected downwardly.

The lowermost step is extended downwardly adjacent the bulb to form a flattened downwardly tipped portion 17 close to the bulb which kills the glare at this point by directing the light rays downwardly.

lhe usual lens and lens retaining ring it? and 19 are provided. The reflector is also as provided with the usual socket 20 tor the reception of the bulb and the wire engaging plug 21. i

It will be seen from the foregoing that a reflector has been provided which will efas factually eliminate all glare while at the same time supplying a maximum of light. The greatest glare to an advancing driver from the ordinary parabolic reflector, when the light bulb is properly focused is from an the upper hall at the reflecting surface, and it was withthis fact in mind, that the present reflector was designed.

is to be understood that the form of the invention herein shown and described ice is to be taken as the preferred form, but that various changes in the shape, size and nuns her of sectors, may he resorted to without departing from the spirit of the invention or the scope of the subjoined claims. are

Havingdescribed my invention, what I claim as new and desire to secure by Letters Patent is 1. A parabolic lamp reflector having a plurality of straight horizontally arranged stepped portions extending entirely across the upper half thereof from side to side and arranged to direct light rays received from a source of light placed at its focus downwardly and substantially at the 'same angle of inclination at all points in. the length of said stepped portions.

2. A lamp reflector having its upper half provided with aplurality of straight horizontally arranged stepped portions complementally forming a vertically serrated face JAMES N. LYLES.