The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 28, 1999
Filed:
Feb. 05, 1997
Harald Hofmann, Ludenscheid, DE;
Erco Leuchten GmbH, Lundenscheid, DE;
Abstract
A reflector light has a reflector having a reflective inner surface having an edge defining a ceiling plane and substantially symmetrical to a symmetry plane perpendicular to the ceiling plane and a rear-end compartment bisected by the symmetry plane and remote from the ceiling plane. A lamp or primary light source is provided in the compartment on the symmetry plane. An at least partially light-passing diffuser separate from the reflector and spaced toward the surface from the lamp is substantially symmetrical to the symmetry plane and has a light-emitting flat outer surface directed toward the ceiling plane. The surfaces are shaped such that light emitted by the diffuser surface is reflected by the reflector surface outward in a space symmetrical to the symmetry plane and defined by a family of lines tangenting the reflector edge and traversing the symmetry plane. The diffuser surface lies between the family of lines and the lamp.