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:
Apr. 08, 2025
Filed:
Sep. 17, 2021
Applicant:
Asahi Rubber Inc., Saitama, JP;
Inventors:
Masutugu Tasaki, Saitama, JP;
Yuta Ito, Saitama, JP;
Takeru Kawaguchi, Saitama, JP;
Nobuyuki Tomizawa, Saitama, JP;
Assignee:
ASAHI RUBBER INC., Saitama, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 19/00 (2006.01); G02B 3/08 (2006.01);
U.S. Cl.
CPC ...
G02B 19/0061 (2013.01); G02B 3/08 (2013.01);
Abstract
An ultraviolet LED optical member has high transmittance in an ultraviolet range, is stable even by long-term use and has excellent reliability. The ultraviolet LED optical member exhibits optical characteristics in which the average transmittance at wavelengths from 200 to 300 nm is 50% or more by having an optical member made of an organic resin. The optical member for this ultraviolet LED optical member preferably exhibits optical characteristics in which the transmittance of at least any wavelength from 200 to 250 nm is at least 60%.