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:
May. 08, 2007
Filed:
Jul. 28, 2005
Sheng-jui Chao, Taichung, TW;
Sheng-Jui Chao, Taichung, TW;
Asia Optical Co., Inc., Taichung, TW;
Abstract
A method for making a lens barrel includes the steps of: (a) forming a fusible mold core having at least one flange; (b) applying an insulating layer on the fusible mold core; (c) disposing the fusible mold core in a lens-barrel-forming mold; (d) feeding a molding material into the lens-barrel-forming mold to form the lens barrel between the lens-barrel-forming mold and the fusible mold core and adhered to the fusible mold core, the lens barrel having at least one inner cam groove corresponding to the flange of the fusible mold core; (e) removing the lens barrel together with the fusible mold core from the lens-barrel-forming mold; and (f) fusing the fusible mold core for separating the fusible mold core from the lens barrel.