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. 14, 1993
Filed:
Dec. 09, 1991
Steven H Boland, Glendora, CA (US);
John S Goldner, San Jose, CA (US);
BHK, Inc., Pomona, CA (US);
Abstract
A low pressure gas discharge lamp of the capillary bore type is equipped with a temperature control system whereby the electrode containment section and the light output section of the lamp are at higher temperatures than the capillary bore section. Vapor flow from the higher temperature sections to the relatively low capillary bore section maintains a satisfactory vapor fill in the bore section for attainment of a high light output. In one arrangement, the temperature control system includes a heater and a heat sink at selected points along the lamp envelope. In another form of the invention, the control system is solely a heat sink in thermal contact with the capillary bore section.