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AssigneeNova-Lux-Gesellschaft Brandenburg & Co.
InventorsRichard Schneppendahl, Heinrich Kramer, Franz Pepping
Estimating the term…
A lamp includes a light source having a center and a light diffuser disc having two opposite faces and supported at a distance from the light source. One face of the light diffuser disc is provided with a prism structure which is symmetrical with respect to a normal that passes through the center of the light source and that is perpendicular to the faces of the light diffuser disc. The prism structure is formed of a plurality of prisms extending parallel to one another; each prism has a frontal flank oriented towards the normal and a rear flank oriented away from the normal. The angle of inclination of the frontal flanks gradually decreases from prism to prism in a direction away from the normal, while the angle of inclination of the rear flanks gradually increases at a decreasing rate, from prism to prism towards an upper limit value in a direction away from the normal.
In a lamp including a light source having a center and a light diffuser disc having two opposite faces and supported at a distance from the light source;
A light diffuser disc adapted for use in a lamp and having two opposite faces, the improvement comprising a prism structure on one face of said light diffuser disc, said prism structure being symmetrical with respect to a normal being perpendicular to the faces of said light diffuser disc, said prism structure being formed of a plurality of prisms extending parallel to one another, each prism having a frontal flank oriented towards the normal and a rear flank oriented away from the normal;
Dependencies are inferred from the claim text.