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. 07, 2010
Filed:
Dec. 21, 2004
Tadashi Yano, Kyoto, JP;
Masanori Shimizu, Kyoto, JP;
Kiyoshi Takahashi, Kyoto, JP;
Panasonic Corporation, Osaka, JP;
Abstract
An LED lampincludes: an LED chip; a phosphor resin portionthat covers the LED chip; and a light-transmissive memberthat covers the phosphor resin portion. The phosphor resin portionincludes: a phosphor for converting the emission of the LED chipinto light that has a longer wavelength than the emission; and a resin in which the phosphor is dispersed. The surface of the light-transmissive memberincludes an upper surface portionlocated over the LED chipand a side surface portionlocated around and below the upper surface portion. At least a part (low-transmittance part) of the side surface portionof the light-transmissive memberhas lower transmittance than the upper surface portion