US1824047A - Lamp - Google Patents

Description

Sept- 22 1931 s. GoLDr-INGER 1,824,047

LAMP

Filed Jan. 16, 1931 TTORY Patented Sept. 22, 1931 PATENT oFFlcE SAMUEL GOLDFINGER, OF NEW YORK, N. Y.

LAMP

Application led January 16, 1931.

My present invention relates generally to an illuminating device, and has particular reference to a novel type of lamp.

A general obj ect of my invention is to provide a lamp or lighting arrangement which provides an efficient type of so-called indirect lighting for the room in which the lamp is placed.

Another object of my invention is to provide an arrangement wherein the illumination is not confined to such indirect lighting, but simultaneously provides a relatively small, yet ample, amount of gentle and pleasing illumination in a downward direction, in ithe more or-less conventional manner.`

A more particular object of my invention lies in providing a device which has the outward appearance of a lamp of the conventional kind in connection with which indirect illumination is not contemplated or expected.

A still further object of my invention lies in providing an arrangement wherein a single source of light, such as an electric bulb, accomplishes all of the desired objects and wherein I simultaneously achieve the advantages and desirable characteristics of a pure indirect-lighting arrangement, usually of a relatively ugly and unattractive appearance, and the desirable features of a normal type of lamp, which is usually of more pleasing and attractive appearance and which produces a gentle downwardly directed and relatively local illumination.

One of the main features of my invention lies in providing a peculiarly efHcient cooperative arrangement of two reflectors, one of which is a main upwardly divergent ref1ec tor serving to confine the illumination from the source of light to an upwardly directed beam, and the other of which is an auxiliary and downwardly divergent reflector which functions in a predetermined manner for directing only a certain portion of this beam z. downwardly for local illumination.

In general, my present invention provides an arrangement which is relatively simple in construction and hence inexpensive to manufacture and easilyassembled, and which is not only staunch and efcient but at the same time Serial No. 509,139.

other objects as may hereinafter appear or be pointed out, in the manner illustratively exemplified in the accompanying drawings, whereinl Figure 1 is an elevational view of a lamp embodying the features of my present invention' Figure 2 is an enlarged cross-sectional view of the upper portion of Figure 1; and

Figure 3 is a plan View taken substantially along the line 3 3 of Figure 2, with the outer shade removed. c

By way of example, I lhave illustrated a standing lamp wherein a pedestal is adapted to rest upon a floor 11 and carries a post or stanchion 12 on the upper end of which the lamp proper is mounted.

In accordance with my present invention, I mount a main reliector l13 upon the post 12, this reflector being upwardly concaved or upwardly divergent and being provided with means to accommodate a source of illumination, such as the electric bulb 14. More particularly, I provide a hollow portion 15 on the post 12 within which an electric light socket (not shown) is mounted. .The bulb or lamp 14 is adapted to be screwed into this socket from above, and the reflector 13 is so fixed that the bulb will lie in its entirety within the connes of the reflector. A pull-chain or the like 16 may extend from the side of the portion 15 for controlling the operation of the lamp 14.

The'reector 13 is opaque and is adapted to direct all the illumination from the lamp 14 upwardly so as to confine this illumina` tion to an upwardly divergent beam. In the illustrated form, I have shown a preferred way of accomplishing this by the provision of a separate reflecting insert 17. This insert conforms to the contour of its container portion, and the combination of the portions At its upper edge, this reflector is provided with an outwardly projecting marginal flange 18 which may be said to be substantially horizontal, although in the illustrated embodiment I have shown a very slight upward divergence thereof. rlhe width of this marginal liange is relatively small with respect to the total diameter ofthe lrefiector 13. At its outer periphery, I have shown the flange 18 provided with an upwardly directed bead or rim 19 which' may be advantageously provided thereon but whichisl not essential.

The flange 18 is essentially a light-transmitting member, and I have illustratively shown the same as an integral portion of the reflector 13 and provided with a series of apertures or openings 20. The portions between the openings are relatively opaque, and the openings themselves, whetherV provided with inserts of glass or the like ornot, serve as light-transmitting apertures.

In accordance with my invention, I providea second or auxiliary reflector which is downwardly' concaved and which is in the form of an annulus 21. This reflector is 'opaque and lhas its under-surface constructed to serve as arefiecti-ng surface. I have il- 'lustra'tively shown the manner in which a l In accordance with my present invention, the auxiliary reflector 21 is an entirely separate element and 1s capable of removabl application into its operative position, rest- 'ingj merely by gravity upon the edge of the flange 18. The removability of the annulus Y21 has a great advantage from a manufac- 50 turing and assembling standpoint, and also greatly facilitates access to the bulb 14 and access, for polishing or replacement purposes, to the interiors of the reflectors 13 and 21. y

The central opening defined by the annulus 21 -is of sufcient size't'o permit most of the upwardly directed beam from the lamp to pass through it, as indicated in a general way by the arrows 24.

The present construction is completed by the provision of an outer shade 25 which is substantially tubular in structure and is vadapte-:l to find support, at a midportion Y thereof, upon the outer surface of the annulus 21. More especially, it is to be' noted tion which extends downwardly below the level of the flangev 18, and also an upper portion whichV extends upwardly beyond the level of this flange. It is to be particularly noted that .the upper edge 27 of the shade 25 lies above the uppermost surfacev of the refiector .1, while the lower edge 28 ofthe shade 25 lies below the reflector 13. In this way,

Vthe shade effectually conceals the entire reflector arrangement, and, more particularly, conceals vfrom view the construction of the flange 18 and the arrangement of the auxilia ry reflector thereover.

The operation of the device will be obvious from the description given. The main illumination is confined to an upwardly divergent beam which passes freely through the opening in the anulus 21 and provides for the indirect-lighting effect of the lamp as a whole. In other words, this beam upon striking the ceiling, will be reflected downwardly by the ceiling ina diffused manner which may efficiently serve to illuminate an entire room with a gentle, glareless, yet highly efficient, light. The marginal portion of this upwardly directed beam impinges upon the undersurface of the reflector 21, as indicated by the arrows 29, and this refiector is so contoured that these beams will be reflected downwardly in a substantially vertical direction, as indicated by the arrows 30, this down'- ward beam passing through the flange 18 and providing a local, gentle, yet ample illumi- -nation of wellknown character. I

It Vwill thus be noted that an extremely eflicient illumination is provided, none of the light being dissipated, all of the advantages of indirect illumination being achieved, and the desirable features of the conventional type of illumination being retained.` It is further to be noted that all these advantageous results are achieved by a single bulb 0r lsource of illumination which is efliciently housed in an extremely simple and good-looking structure. l

Obviously, many of the structural features hereinillustrated may be modified to suit differing requirements. Although I prefer to make the portions 15, 13, 18, and 21 of metal, other materials may be employed, if desired. To achieve the maximum advantages, I have found it most desirable to make the reflectors 13 and 21 opaque. The apertures or openings 2O in the flange 18 may be of any desired contour or configuration and may be provided with inserts of glass, frosted or unfrosted; or the entire flange may, if desired, be constructed of al light-transmitting substance. The annulus 21, though advantageously of a removable character, need not necessarily be provided as a separate element; and the flange 18, though preferably integral with the reflector 13, may, if desired, be constructed in a different manner. The outer shade may have any preferred contour and may be of any suitable material, such as parchment, fabric, or the like, and although I prefer to mount it in the removable manner shown, other ar rangements may be resorted to if found preferable.

Obviously, also, the features of my invention are not restricted to a standing lamp of the character illustrated, and table lamps, piano lamps, or other types of lighting lixtures, may readily be constructed to embody the same advantageous novel features. From certain aspects, even the symmetrical, circu lar construction herein illustrated by way of 1 example need not be adhered to under all conditions.

In general, it will be obvious that changes in the details herein described and illustrated for the purpose of explaining the nature of my invention may be made by those skilled in the art without departing from the spirit and scope ofthe invention as expressed in the appended claims. It is therefore intended that these details be interpreted as illustrative, and not in a limiting sense.

Having thus described my invention, and illustrated its use, what I claim as new and desire to secure by Letters Patent is 1. In a floor lamp of the character described, an upwardly divergent, opaque reilecting bowl, a source of light therein, a substantially horizontal, outwardly projecting flange integrally formed on the upper edge of said bowl and having` lightetransmits; ting openings therein, and an upwardly convergent, opaque reflecting annulus removably mounted on the peripheral edge of said flange for directing certain light beams downwardly through said openings.

2. In a floor lamp of the character de scribed, an upwardly divergent, opaque reflecting bowl, a source of light therein, an outwardly projecting flange arranged on the upper edge of said bowl and provided with i light-transmitting openings therein, an upwardly convergent, opaque reflecting annulus supported on the periphery of said flange to direct said light beams downwardly through said openings, and a substantially tubular shade for the lamp encircling said flange and provided with means upon the in terior thereof for resting upon the lower edge portion of said annulus.

3. In a floor lamp of the character described, a pedestal, an upwardly concaved,

and having some opaque portions and some portions adapted freely to transmit light therethrough, and a downwardly divergent, auxiliary reflector supported on its edge upon the peripheral portion of said flange, said auxiliary reflector having an opening in its lnidportion adapted to permit passage therethrough of most of said upwardly divergent beam, the marginal portion of said auxiliary reflector serving to direct the marginal portions of said beam downwardly and undiffusedly through said light-transmitting portions of said flange.

4l. In a floor lamp of the indirect-lighting variety, a pedestal, an upwardly divergent, opaque reflecting bowl on the upper end of said pedestal, a source of light in said bowl, a substantially horizontal flange projecting outwardly from the upper edge of said bowl and provided with openings therein adapted to permit free passage of light therethrough, an upwardly convergent, opaque reflecting annulus mounted on the outer edge of said flange, and a tubular shade mounted on said annulus and surrounding said bowl and annulus to conceal the latter, whereby the maj or portion of the light reected by said bowl will emerge from* the upper end of the shade in an upwardly divergent beam adapted to be reflected in diffused condition by the ceiling, while at the same time certain light rays encountering said annulus will be reflected downwardly by the latter through said flange openings and will emerge undilfused from the lower end of the shade in an annular beam surrounding said pedestal.

In witness whereof I have signed this specification this 12th day of January, 1931.

SAMUEL GOLDFINGER.

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