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. 02, 2019
Filed:
Jun. 18, 2017
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Yoko Matsubayashi, Osaka, JP;
Hiroshi Yagi, Osaka, JP;
Masanori Shimizu, Kyoto, JP;
Yoshio Manabe, Osaka, JP;
Atsushi Motoya, Shiga, JP;
Kazuhiro Matsuo, Osaka, JP;
Toshio Mori, Kyoto, JP;
Abstract
An LED lamp provides a strong red color with a natural appearance. The LED lamp is provided with an LED module and a filter. The LED module includes a blue LED with a main emission peak in the 440 nm to 460 nm wavelength band, a green/yellow phosphor that is excited by light emitted by the blue LED, and a red phosphor that is excited by light emitted by at least one of the blue LED and the green/yellow phosphor. The filter reduces the spectral radiation intensity of at least a portion of the 570 nm to 590 nm wavelength band among light emitted by the LED module.