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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 9434637 B1

PDFFull Text
Expired
Date of Patent:
Sep. 06, 2016

Filed:

Feb. 06, 2014

Optical glass, hot-molded article and method of manufacturing the same, optical element and method of manufacturing the same

Applicant:

Hoya Corporation, Tokyo, JP;

Inventor:

Masanori Aniya, Tokyo, JP;

Assignee:

HOYA CORPORATION, Tokyo, JP;

Attorney:

Oliff PLC

Primary Examiner:

Anthony J Green

Assistant Examiner:

Elizabeth A Bolden

Int. Cl.
CPC ...
C03C 3/155 (2006.01); C03C 3/19 (2006.01); C03C 3/21 (2006.01); C03C 3/15 (2006.01); C03C 3/068 (2006.01); C03B 23/00 (2006.01); G02B 1/00 (2006.01); G02B 3/02 (2006.01); C03B 40/04 (2006.01); C03B 11/12 (2006.01); G02B 3/00 (2006.01); G02B 5/04 (2006.01); G02B 5/18 (2006.01);
U.S. Cl.
CPC ...
C03C 3/21 (2013.01); C03B 11/122 (2013.01); C03B 23/0013 (2013.01); C03B 40/04 (2013.01); C03C 3/068 (2013.01); C03C 3/15 (2013.01); C03C 3/155 (2013.01); C03C 3/19 (2013.01); G02B 1/00 (2013.01); G02B 3/02 (2013.01); C03B 2215/46 (2013.01); C03B 2215/66 (2013.01); G02B 3/00 (2013.01); G02B 3/0006 (2013.01); G02B 5/04 (2013.01); G02B 5/18 (2013.01);
Abstract

An optical glass includes PO, BOand a rare earth oxide as essential components, and in a glass composition based on oxides, the POcontent is in the range of over 0 weight % and less than 0.79 weight %, the BOcontent is in the range of 20-40 weight % and the total content of the rare earth oxide and an oxide selected from the group including of TaO, WO, TiO, NbOand BiOis in the range of 35-70 weight %. Further, this optical glass has a refractive index (nd) in the range of 1.72-1.83, an Abbe number (υd) in the range of 45-55 and a glass transition temperature (Tg) of 640° C. or less.

Find Patent Forward Citations

Aniya, Masanori. (2016). Optical glass, hot-molded article and method of manufacturing the same, optical element and method of manufacturing the same (U.S. Patent No. 9434637). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9434637

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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