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:
Jun. 16, 1998
Filed:
Oct. 17, 1996
General Electric Company, Schenectady, NY (US);
Abstract
An electrodeless fluorescent lamp comprises a discharge vessel (10) having a re-entrant portion (11) for housing a solenoid (12) for initiating a discharge in the vessel by means of an RF electromagnetic field. A primary amalgam (18) for releasing mercury vapor is placed at the tip of an exhaust tube (17) where the primary amalgam can be maintained at a suitable temperature for controlling the mercury vapor pressure. The primary amalgam does not provide rapid run-up of light output. To provide rapid run-up of light output a pied of indium (20,30) is placed on the re-entrant at a position where it is rapidly heated by the discharge. The indium may be coated with the layers of a coating including phosphor.