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.

Date of Patent:
Jun. 02, 2015

Filed:

Apr. 02, 2012
Applicants:

Kohji Minami, Osaka, JP;

Masaru Ogawa, Osaka, JP;

Inventors:

Kohji Minami, Osaka, JP;

Masaru Ogawa, Osaka, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F21V 9/02 (2006.01); F21S 8/00 (2006.01); F21V 8/00 (2006.01); G01R 31/40 (2014.01);
U.S. Cl.
CPC ...
F21S 8/006 (2013.01); G02B 6/0026 (2013.01); G02B 6/0028 (2013.01); G02B 6/0068 (2013.01); G02B 6/007 (2013.01); H02S 50/00 (2013.01);
Abstract

In a simulated sunlight irradiation apparatus (), at least one of at least one optical filter () and at least one optical filter () is provided so as to be switchable with another optical filter (or) having a transmittance characteristic that is different from a transmittance characteristic of the at least one of the at least one optical filter () and the at least one optical filter ().


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