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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 9895832 B1

PDFFull Text
Date of Patent:
Feb. 20, 2018

Filed:

Sep. 11, 2014

Method of manufacturing plastic lens, and method for manufacturing mold for forming optical lens

Applicant:

Hoya Corporation, Tokyo, JP;

Inventors:

Norio Takatori, Tokyo, JP;

Kiyonori Sato, Tokyo, JP;

Assignee:

HOYA CORPORATION, Tokyo, JP;

Attorney:

Osha Liang LLP

Primary Examiner:

Nahida Sultana

Int. Cl.
CPC ...
B29C 45/00 (2006.01); B29D 11/00 (2006.01); B29C 45/73 (2006.01); B29C 45/78 (2006.01); B29C 45/56 (2006.01); B29L 11/00 (2006.01); G02B 1/04 (2006.01);
U.S. Cl.
CPC ...
B29C 45/0001 (2013.01); B29C 45/73 (2013.01); B29C 45/78 (2013.01); B29D 11/00 (2013.01); B29D 11/0048 (2013.01); B29C 45/561 (2013.01); B29C 2945/00 (2013.01); B29L 2011/0016 (2013.01); G02B 1/041 (2013.01);
Abstract

A method for manufacturing a plastic lens that can enhance productivity by shortening the cooling time without affecting transferability even if the temperature of a mold is set low and may be applicable to an existing injection molding apparatus. When a plastic lens having a prescribed lens shape is manufactured by injecting and filling a molten resin in a cavityformed between a movable moldand a fixed mold, a molding surface of at least one of cavity forming member insert moldsandis formed in glass substratesand, and for a period of time for which filling is completed with the cavitybeing filled with a raw material resin that flows into the cavity, temperature control is conducted such that the surface temperature of the molding surface does not exceed the glass transition temperature of the raw material resin.

Find Patent Forward Citations

Takatori, Norio. (2018). Method of manufacturing plastic lens, and method for manufacturing mold for forming optical lens (U.S. Patent No. 9895832). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9895832

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

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