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:
Jan. 31, 2017
Filed:
Oct. 12, 2015
Masaharu Urano, Kanagawa, JP;
Hiroshi Yamazaki, Chiba, JP;
Masaharu Urano, Kanagawa, JP;
Hiroshi Yamazaki, Chiba, JP;
RICOH COMPANY, LTD., Tokyo, JP;
O2 MICRO, INCORPORATED, Santa Clara, CA (US);
Abstract
An illumination lamp includes: an input portion connectable to any one of power supply portions for two or more starting methods including a rapid-start method; a voltage detection circuit configured to detect a voltage applied from a power supply portion; and a control portion including at least one first voltage supply portion configured to supply a voltage suitably for the rapid-start method to a semiconductor light-emitting device, and at least one second voltage supply portion configured to supply a voltage suitably for the other fluorescent-lamp starting method to the semiconductor light-emitting device. The control portion causes, if the voltage is detected by the voltage detection circuit, the first voltage supply portion to supply a voltage to the semiconductor light-emitting device, but causing, if the voltage is not detected by the voltage detection circuit, the second voltage supply portion to supply a voltage to the semiconductor light-emitting device.