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:
Jul. 12, 1977
Filed:
Feb. 13, 1976
Gordon R Fleming, Hanover, NH (US);
Atkins & Merrill, Incorported, Lebanon, NH (US);
Abstract
A lamp assembly for providing light emission only over a selected portion of the visible spectrum which lamp assembly includes an electroluminescent means for emitting light over a predeterminable range of the visible spectrum which includes such selected portion. The lamp assembly further includes a first fluorescent means which absorbs light emitted by the electroluminescent means over another portion of the predeterminable range which does not include the selected portion thereof and emits the absorbed light over the desired selected portion. Additional light emitted by the electroluminescent means over still other portions of the visible spectrum can be prevented from emission from the lamp assembly by the use of a suitable filter therefor or by the use of an additional fluorescent means which absorbs such additional light and emits such absorbed light over the portion of the spectrum in which light is absorbed by the first fluorescent means.