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:
Aug. 03, 2010
Filed:
Dec. 28, 2005
Mikio Masui, Kashihara, JP;
Youji Urano, Ikeda, JP;
Mikio Masui, Kashihara, JP;
Youji Urano, Ikeda, JP;
Panasonic Electric Works Co., Ltd., Osaka, JP;
Abstract
Light emitting deviceincludes an LED chip, a mounting substratecarrying the LED chip, a dome-shaped color conversion member, and encapsulation member. Color conversion memberis molded from a transparent resin material and a fluorescent material which is excited by a light emitted from the LED chip to emit a light of a color different from a luminescent color of the LED chip, and is bonded to the mounting substrate to surround LED chip. Encapsulation memberis made of an encapsulation resin material to encapsulate LED chipand bonding wireswithin a space confined between mounting boardand color conversion member. Encapsulation memberis of a convex-shape to have its light output surfacekept in an intimate contact with an internal surface of color conversion member. Since the intimate contact between the convex-lens shaped encapsulation memberand the color conversion member is made without the use of a conventional frame, the light emitting device can restrain the generation of voids in the encapsulation member, and therefore give improved reliability. Moreover, the light output efficiency is also improved.