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:
Dec. 14, 1976
Filed:
Mar. 21, 1975
Makoto Toho, Kyoto, JA;
Matsushita Electric Works, Ltd., Osaka, JA;
Abstract
A discharge lamp lighting device minimized in dimensions and capable of lighting a discharge lamp with a source voltage close to discharge lamp voltage is provided. The device comprises an alternating current source, a discharge lamp connected in series with the alternating current source through a current limiting means and of a lamp voltage substantially equal to the source voltage, and a switching element connected substantially in parallel with the lamp. The switching element is actuated once in each of half cycles of the source voltage so that, when the element is in ON-state, an energy will be accumulated in the current limiting means and, when the element is in OFF-state, such accumulated energy will be exhausted to the discharge lamp, whereby the lamp is continuously lighted.