Shaded lamp for reading and like purposes

Details Shaded lamp for reading and like purposes Shaded lamp for reading and like purposes

1981-01-06

1983-07-05

Lechert, Jr., Stephen J.

Illumination

Light source and modifier

Adjustable or repositionable modifier

362323, 362325, 362354, 362360, 362361, 362367, F21V 1702

Patent

active

043921906

ABSTRACT:
Two nested downwardly diverging frustoconical lamp shades are supported at their upper ends by a base which also supports a lamp bulb. The shades have openings therein which, when aligned by adjustment of one of the shades, passes a beam of light from the bulb to a reading or like area. The intensity of illumination can be controlled by changing the extent of overlapping of the openings. Shade elements extend across the lower ends of the shades and have openings therein. One of the shade elements is adjustable relative to the other to move the openings therein in and out of register with the openings in the other element whereby to vary the intensity of illumination of light projected downwardly by the lamp bulb.

REFERENCES:
patent: 1893409 (1933-01-01), Grant
patent: 1999006 (1935-01-01), Grant

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