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:
Nov. 15, 1994
Filed:
Aug. 18, 1992
Masataka Ozawa, Takarazuka, JP;
Takayuki Kamitani, Osaka, JP;
Kazutaka Koyama, Nishinomiya, JP;
Shigeru Horii, Takatsuki, JP;
Koji Miyazaki, Yawata, JP;
Nobuhisa Yoshikawa, Sakai, JP;
Takeshi Saito, Amagasaki, JP;
Kazuhiko Ito, Hirakata, JP;
Masayoshi Gyoten, Takatsuki, JP;
Atsuo Waki, Osaka, JP;
Matsushita Electric Industrial Co. Ltd., Kadoma, JP;
Abstract
In a discharge-lamp lighting apparatus for lighting a discharge lamp such as a metal halide lamp, there is provided a lighting control circuit which controls its output in a starting time of the discharge lamp in response to at least a length of the last off-time and an on-time after the start of discharging; and a power supplied to the discharge lamp is controlled in accordance with this output of the lighting control circuit.