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:
Mar. 17, 2015
Filed:
Jan. 04, 2011
Yoshinori Shinohara, Nagano, JP;
Fumiaki Koizumi, Nagano, JP;
Yoshinori Shinohara, Nagano, JP;
Fumiaki Koizumi, Nagano, JP;
Nittoh Kogaku K.K., , JP;
Other;
Abstract
Disclosed are a white LED lighting device and an optical lens used in it. The white LED lighting device comprises a white LED and an optical lens. The white LED includes: a LED chip which emits blue light; and a fluorescent material which is excited by emission light of the LED chip and converts a wavelength into fluorescence of a complementary color of blue. The optical lens is formed with a scattering light guide which is given uniform scattering power in terms of a volume. The scattering light guide includes scattering particles for the scattering efficiency in a short wavelength range of light to be higher than that in a long wavelength range of light.