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:
Nov. 25, 2014
Filed:
Jun. 28, 2012
Masaru Igaki, Kyoto, JP;
Hirotaka Shimizu, Kyoto, JP;
Kohei Mizuta, Kyoto, JP;
Hideharu Osawa, Kyoto, JP;
Masaru Igaki, Kyoto, JP;
Hirotaka Shimizu, Kyoto, JP;
Kohei Mizuta, Kyoto, JP;
Hideharu Osawa, Kyoto, JP;
Rohm Co., Ltd., Kyoto, JP;
Abstract
An LED lightbulb is configured to properly illuminate a broader region. The LED lightbulb includes a light emitting unit, a pedestal, a power source unit, a heat dissipator, a base, and a globe swelling toward one side in a first direction for enclosing the light emitting unit. The globe is configured to diffusingly transmit light from the light emitting unit. The light emitting unit provides a light amount not less than 50% of the maximum light amount in a region not exceeding ±60° about the central axis extending in the first direction set as 0°. The globe provides a light amount not less than 50% in a region exceeding ±125° about the central axis set as 0°.