US2131442A - Lamp shade - Google Patents

Description

p 27, 1938. J. A. KORENGOLD 2,131,442

LAMP SHADE Filed April 22, 1937 14 r TOE/VEY Patented Sept. 27, 1938 UNITED STATES -LAMP SHADE I John A. Korengold, Chicago, Ill.

Application April 22,

Claims.

This invention relates to a certain new and useful improvement in lamp-shades and has for its primary object the provision, as a new article -of manufacture, of a lamp-shade uniquely formed and constructed not only for absorbing certain selected impinging light-rays and refleeting other such rays for the production of a flood of light upon the object without glare or eye strain, but also for intercepting and absorbing stray rays in certain predetermined directions for preventing such rays from reaching the eye of the user.

And with the above and other objects in view, my invention resides in the novel features of form, construction, arrangement, and combina tion of parts presently described and pointed out in the claims.

In the accompanying drawing,-

Figure 1 is a front elevational view of a lampshade constructed in accordance with and embodying my present invention;

Figure 2 is an inverted plan view of the shade; and.

Figure 3 is a side elevational view of the shade, partly broken away and in section.

Referring now in more detail and by reference characters to the drawing, which illustrates a preferred embodiment of the present invention, the shade comprises a reflector body-portion A preferably of bowl-like conformation molded preferably of translucent opal glass and impressed with an over-all prismatic pattern, the outer face a of the body-portion A being provided with a preferably fused vitreous, dark-green coating, all for purposes presently more fully appearing and as best seen in Figures 1 and 3.

Forming preferably an integral part of the body-portion A and disposed centrally of the per portion attachment-collar I provided with a diametrically enlarged annular bead 2 for retentive engagement with any conventional type of lampshade holder, not shown. The collar I is. similarly formed of opal glass and is provided, upon its outer face b, with a preferably fused, vitreous or enamel coating 0 of black or other suitable opaque color.

Likewise preferably forming an integral part of, and extending downwardly from the lower peripheral edge of, the body-portion A, is an annular rim 3 also constructed preferably of opal glass impressed with a prismatic pattern. and provided upon its exterior face d with an opaque preferably black. fused, vitreous or enamel coating e.

up thereof, is an upstanding, neck-like 1937, Serial No. 138,328

In turn, preferably integral with, and extending along a portion only of the lower peripheral edge of, the rim 3, as best seen in Figure l, is a depending or downwardly presented segmental lip 4 constructed of green colored glass, the inner face 1 of which is preferably frosted or dulled and the outer face I of which is coated wtih a preferably black opaque, fused vitreous or enamel layer 6, as best seen in Figure 3.

When the shade is installed for use about a suitable light source, the rays emitted thereby which impinge upon the reflector body A are refractively reflected from the prismatic surface thereof, a certain amount of the rays passing into and and being'partially absorbed in the green outer layer a, so that some light will pass out into the room and provide a very subdued illumination of nearby objects. Other rays which pass diagonally outwardly from the body A will impinge upon the rim 3 and either be completely absorbed in the black outer coating 6 thereof or be reflected back into the shade. Finally, a certain amount of light which passes diagonally beneath the peripheral edge of the rim 3 would ordinarily reach the eyes of the user; such rays, however, are intercepted by the depending segmental lip 4, which may be readily interposed between the user and the light source. These intercepted rays will be entirely absorbed in the dull colored material of the lip 4 and the opaque coating e thereof, thus preventing any eye-strain or glare from such source.

In order that the present shademay be utilized with any suitably shaped conventional type of opaque, outer shell or metal spinning to provide an entirely non-translucent shade, I have provided the neck-like collar l with an opaque coating b, which completely opaques any junctureline or gap betweensuch outer shell and the shade supporting housing or fixture.

k The shade may be economically and inexpensively constructed and has been found exceedingly efficient in the performance of its intended functions.

It should be understood that changes and modifications in the form, construction, arrangement, and combination of the several parts of the lamp-shade may be made and substituted for those herein shown and described without departing from the nature and principle of my invention.

Having thus described my invention, what I claim and desire to secure by Letters Patent is,

a dull preferably neutral 5 through the opal glass portion thereof I of the body-portion, a segmental lip depending from the lower margin of the rim, and an attachment-collar upstanding from the body-portion centrally of its upper extremity, said rim and said collar each having an opaque exterior coating,

3. As a new article of manufacture, a lamp shade of translucent material comprising a reflector body-portion, an annular rimdepending from the lower margin of the body-portion and provided upon its outer face with an opaque coating, and a segmental lip of bluish-green material depending from the lower margin of the rim.

4. As a new article of manufacture, a lampshade of translucent material comprising a reflector body-portion, an annular rim depending from the lower margin of the body-portion and provided upon its outer face with an opaque coating, and a segmental lip depending from the lower margin of the rim, said lip being formed of a bluish-green material and provided along its outer face with an opaque coating.

5. As a new article of manufacture, a lampshade comprising a, reflector body-portion formed of translucent material, an annular translucent rim formed integrally with and depending from the lower margin of the body-portion and having substantial thickness for refracting a material portion of the light incident thereon, said rim further being provided on its outer face with an opaque coating and on its inner face with a prismatic pattern whereby the light rays incident on the inner face of the rim are re-directed, in part by reflection and in part by refraction, into the lamp-shade away from the plane of the lower periphery of the rim, and a segmental lip integrally depending from the lower periphery of the rim and being also provided on its outer face with an opaque coating. I

JOHN A. KORENGOLD.

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