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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.:

US 10293369 B1

PDFFull Text
Date of Patent:
May. 21, 2019

Filed:

Dec. 27, 2017

Light emitting device and light irradiation apparatus including the same

Applicant:

Nichia Corporation, Anan-shi, JP;

Inventors:

Toshihiko Aizawa, Anan, JP;

Masato Ono, Sagamihara, JP;

Daisuke Kishikawa, Anan, JP;

Assignee:

NICHIA CORPORATION, Anan-shi, JP;

Attorney:

Mori & Ward, LLP

Primary Examiner:

Laura K Tso

Int. Cl.
CPC ...
B05D 3/06 (2006.01); H01L 25/075 (2006.01); H01L 33/62 (2010.01); F21V 5/00 (2018.01); F21V 5/04 (2006.01); H01L 33/58 (2010.01); F21Y 115/10 (2016.01); F21Y 105/16 (2016.01); H01L 33/46 (2010.01); H01L 33/54 (2010.01);
U.S. Cl.
CPC ...
B05D 3/067 (2013.01); F21V 5/007 (2013.01); F21V 5/043 (2013.01); H01L 25/0753 (2013.01); H01L 33/62 (2013.01); F21Y 2105/16 (2016.08); F21Y 2115/10 (2016.08); H01L 33/46 (2013.01); H01L 33/54 (2013.01); H01L 33/58 (2013.01);
Abstract

A light emitting device is provided which includes a printed board, light emitting elements, and a light-transmissive member. The light emitting elements are arranged in three or more rows, and mounted on the printed board. The light-transmissive member includes three or more semi-semi-cylindrical lens portions that are arranged side by side transversely to cover the three or more rows. The heights of the tops of the semi-cylindrical lens portions are substantially equal to each other. The semi-cylindrical lens portions include first semi-cylindrical lens portions which are arranged to cover at least the both end rows, and a second semi-cylindrical lens portion which is arranged on the interior sides relative to the first semi-cylindrical lens portions in the transverse direction. The radius of curvature of the second semi-cylindrical lens portion is smaller than the first semi-cylindrical lens portions.

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