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:
Mar. 01, 1988
Filed:
May. 29, 1985
John R Brass, San Rafael, CA (US);
Other;
Abstract
A luminaire of the direct lighting type includes a fluorescent lamp for emitting a torodial light pattern to a reflector assembly having a plurality of flat and contiguous facets spaced laterally from the lamp. The reflector functions to reflect the torodial light pattern within parallel light distribution zones. The reflector may be of the cross-beam type (FIGS. 1-4) or down-beam type (FIG. 5). The facets are precisely positioned relative to the light source to provide the above functions whereby the luminaire will function efficiently and will closely control direct and reflected glare. A louver-lens assembly can be utilized to enclose the open bottom of the luminaire and to aid in these functions, a method is also taught for plotting the precise positions of the facets.