Back to results
US 7,373,744 B1Granted
Lampshade
OwnerJon K. Wagnerinventor
Life of this patent
Estimating the term…
Abstract
A lampshade has a body with a number of spaced-apart apertures extending through the thickness of the body. The apertures are arranged in a pattern defining an image on the lampshade. Each aperture is sufficiently small in cross section to form an illuminated image pixel from normal viewing distances when the lampshade is illuminated by a lamp.
Claims20
A lampshade for shading a light source, the lampshade comprising:
- a body having opposed first and second surfaces separated by the thickness of the body;
- and
- a plurality of spaced-apart apertures arranged in rows and columns, each aperture extending through the thickness of the body, the apertures arranged to define a grayscale image on the lampshade, each aperture sufficiently small in cross section to form an illuminated image pixel from normal viewing distances when the lampshade is illuminated by the light source.
A lamp assembly for displaying a predefined image on a lampshade of the assembly, the assembly comprising:
- a lamp and a lampshade assembly;
- the lamp comprising a light source energizable to emit light;
- the lampshade assembly comprising a lampshade and structure mounting the lampshade to the lamp;
- the lampshade having a thickness and comprising a plurality of apertures arranged in rows and columns, each aperture extending through the thickness of the lampshade and sized to define an illuminated pixel on an outer surface of the lampshade when the light source is energized, the apertures varying in either cross-sectional area or in row and column spacing so that the pixels define different levels of gray, the pixels arranged to define a visually perceptible grayscale display of the image.
1 more element
Dependencies are inferred from the claim text.