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 7293978 B1

PDF
Full Text
Expired
Date of Patent:
Nov. 13, 2007

Filed:

May. 26, 2004
Applicants:

Sheng-jui Chao, Taichung, TW;

Yung-i Chang, Taichung, TW;

Inventors:

Sheng-Jui Chao, Taichung, TW;

Yung-I Chang, Taichung, TW;

Assignee:

Asia Optical Co., Ltd., Taichung, TW;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29D 11/00 (2006.01); B29C 45/40 (2006.01);
U.S. Cl.
CPC ...
Abstract

A high precision molding device for insert-molding optical lens comprises a stationary sub-mould and a movable sub-mould for engaging with the stationary sub-mould thereby forming a mould cavity therebetween for molding an optical lens. The molded lens has a body and a protection ring extending outside from the body, and is separated from the stationary sub-mould together with the movable sub-mould. The movable sub-mould includes a mould base, a core fixed with the mould base and a pushing means for pushing the molded lens off the movable sub-mould. The pushing means is circumferentially positioned at the mould base. The upper and bottom surfaces of the protection ring of the molded lens form textures to be foggy.


Find Patent Forward Citations

Chao, Sheng-Jui. (2007). Device for forming high precision optical lens and the product made by the device (U.S. Patent No. 7293978). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7293978

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

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