US1327563A - oe charleston - Google Patents

Description

S..L'. LEBBY.

N0 GLARE HEADLIGHT.

APPLICATION FILED NOV. 20.1917.

'1 27,563. Patented J an. 6, 1920.

3140M: l'oz 5727755 LE5 LEBBX STATES LEE LEBBY, 0F CHARLESTON, SOUTH CAROLINA.

NO-GLARE HEADLIGHT.

Specification of Letters Patent.

Patented Jan. 6, 1920.

Application filed November 20, 1917. Serial No. 202,926.

To all whom it may concern:

Be it known that I, STATES LEE LEBBY, a citizen of the United States, residing at Charleston, in the county of Charleston and State of South Carolina, have invented certain new and useful Improvements in No- Glare Headlights, of which the following is a specification, reference being had therein tothe accompanying drawing.

My invention relates to lights for vehicles and especially to headlights such as are used upon automobiles. It has for its object to provide means to intercept the high light from the light source of a headlight and deflect it onto the road bed, without permitting the rays to go above the horizontal plane of the lamp. An ancillary object is to cause a spreading illumination near the car for maneuvering in close places as well as straight road driving.

In order to attain my objects, I provide a flat or plane reflector and light screen inserted in the headlight above and in front of the lamp, with a drop flange on the front which projects downwardly to a central point below the axis of the lamp and filament.

My invention is illustrated in the accompanying drawings in which Figure 1 is a vertical longitudinal section,

Fig. 2 is a horizontal section on the line 22 of Fig. 1, and

Fig. 3 is a front view showing the shape of the screen flange.

Referring to the drawings in detail, 1 indicates the lamp casing in which is mounted a shallow parabolic reflector 2. A lamp socket 3 is mounted at the rear portion of the lamp casing which may be arranged for longitudinal adjustment therein along the axis of the reflector. An electric lamp 4 having a concentrated filament 5 is carried by the socket 3 and in such adjustment with relation to the reflector that the filament is positioned approximately at the focal point. A suitable cover 6 is provided for the front of the lamp casing and carries a plane glass pane or window 7.

Within the lamp casing and above and in front of the lamp 4:, is mounted my improved light modifier 8 which is in the form of a combined reflector and screen extending horizontally across the lamp casing. The

top portion 9 of the light modifier is in the form of a rectangle, as shown in Fig. 2, extending from side to side of the lamp casing and from a point a'little in advance of the focus of the reflector to the front of the lamp substantially parallel to the axis of the reflector, thus partitioning OK the upper front portion of the lamp casing. The lower surface of the portion 9 is a plane reflector. The front portion 10 of the light modifier is bent to form a downwardly extending vertical flange projecting slightly below the horizontal axis of the lamp and tapering upwardly and outwardly from the center toward the sides of the lamp as indicated in Fig. 3. This front portion 10 forms a screen for cutting off the direct axial rays from the lamp and to regulate the light cast downwardly and to either side from the main reflector 2 and the horizontal reflector 9. As shown in Fig. 3, I form the front screen flange 10 with an arc-shaped drop 11 at the center of its lower edge from which the oblique edges 12 extend upwardly to the sides of the lamp. This peculiar shape of the screen operates to reduce the central or axial head-on glare while permitting the laterally divergingrays from both the light and the reflectors to pass out undiminished according to the point at which they pass out under the oblique edges of the screen. It is to be noted that by placing the reflecting portion 9 of the light modifier in a'horizontal plane, that is parallel to the head-on beam, the efl'ectiveness of the light for straight ahead driving is substantially undiminished, while the upwardly directed rays from the light source which are usually of minor effectiveness, are utilized for illuminating the sides and bed of the road which is of great utility for maneuvering in close places.

Having thus described my invention what I claim and desire to secure by Letters Patent is 1. A no-glare headlight comprising in combination a casing containin a reflector, a lamp in the axis of said rer ector, and a plane auxiliary reflector and screen having an extended flat body supported horizontally above the axis of the lamp in front of the main reflector, and a drop flange on the front edge of said body having its central portion extending downwardly to a point below the axisof the, lamp so as-to shield body and. a, drop, flange relatively deep in the same, and1With its lower edges extendthe center. and: tapering ofi both ways to ing obliquely upward in both directions so permitwwide dispersion of the light rays. 10 as to permit a Wide dispersion ofthe, light. In testimony. whereof I. aflix my signa- 5 rays. ture.

2. A no-glare light screen for headlights and projectors comprising a fiat horizontal STATES LEE LEBBY.

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