US1200398A - Light-reflector. - Google Patents

Description

0. S. STROM.

LIGHT REFLECTOR.

APPLICATION FILED SEPT. 27. 1915.

1,20Q.,398. I Patented Oct. 3,1916.

02am? JZmm. 5 4%? UNITED STATES PATENT OFFICE czar s. smell, or LOS ANGELES, carrronma LIGHT-REFLECTOR.

Specification of Letters Patent.

Application filed September 27,1915. Serial No. 52,778.

. To all whom it may concern Be it known that I, OLAF S. STROM, a citizen of the United States, residing at, Los

An embodiment of my invention is illustrated in. the accompanying drawing, in

which! Figure l is a vertical section through a reflector with the lamp in elevation, and Fig. 2 is a plan view.

Referring more specifically to the drawing, 3 indicates a fixture supported by a link chain 4: and having a lamp 5 secured thereto. Supported from .the fixture 3 is my improved reflector 6. The fixture comprises a lamp socket 7 to which is secured a canopy 8 of bell shape, and extending downwardly. The particular construction of the fixture is not a feature of my invention, and any,"

type of fixture may be used to which my improved reflector may be attached.

Secured adjacent the mouth of the canopy 8 are wires '1' rods 9 having flattened ends and bent out ardly so that the ends may be secured to the reflector. Both ends of rods 9 are flattened and rivets, screws, or any other convenient fastening means may be used for securing the .rods to thecanopy and the reflector. It is preferable to use rods or wires in order that there may be very little obstruction light upward. The reflector 6 is shown as comprised of two reflecting surfaces 10 and 11 of concave form, diverging from the center outward toward the, peripheral edge and having an encompassing annular member 12 to which the outeredges of the reflecting walls are connected. "Reflecting walls 10 and 11 are shown as intersectingadjacent the center and provided with an aperture 13 in which to the passage of the c the bulb of the lamp 5 is adapted to be disposed. A glass bowl 14 is shown connected to .the annular member 12. I do not wish, however, to limit myself to the use of a glass bowl or the use of any bowl. The bowl 14 is preferably transparent so that it will permit the rays of light to pass downwardly.

The reflector 6 should be so disposed with respect to the lamp 5 that the center of the filament 15 will ,be in the plane of the center of the apertures 13, thereby permitting some of the rays oflight to pass directly upward without engaging the reflecting surface 10 Other of the rays will pass outwardly engaging the reflecting surface 10 andupwardly against the ceiling. Indirect lighting of the room is thereby produced. portion of the rays from the lamp 5 will be Patented Oct. 3, 1916.

thrown downwardly, some will strike the reflecting surface 11 and be reflected outwardly and downwardly. The reflecting" surfaces 10 and 11 may be made with ribs or corrugations, if so desired. It is only essential to my invention thatthe reflecting surfaces be of a character such that light will be reflected therefrom away from the source, upwardly by one 'surface,'and away from the source of light and downwardly-by the other surface.

It will be noted that my reflector provides means for direct lighting of the space below and to the sides of the lamp, and that it also provides indirect lightingby reflection, and direct passage of the light upwardly, and outwardly against the ceiling and walls of the room. -By means of thedirect lighting no shadow is cast beneath the fixture which is a serious objection in the case of indirect lighting systems wherein a fixture is used witha reflector disposed below the'source of light. The indirect light produces -diffused and uniformly distributed light about the room, and the direct light illuminates the space, below the :source of light, thereby securing a uniform light distribution and a high efliciency.

What I claim is: c

A fixture, comprising a lamp support, a reflector comprisin a shallow member. having an-aperture su stanti'ally at its center,

a lamp secured to said support and disposed with its light emitting element substantially at the center of said aperture, said reflector provided with oppositely disposed dished surfaces diverging from the center for reflecting light away from said lamp in oppo- 5 site directions, said surfaces being of relatively small curvature of relativel great lateral extent and offering substantlally no obstruction-to the direct'rays of light having a small angle to the horizontal plane passing through said light emitting element. In Witness thatI claim the foregoing I have hereunto subscribed my name this 20th day of August, 1915.

OLAF S. STROM.

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