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:
Sep. 01, 2009
Filed:
May. 31, 2005
Yasunori Ueno, Tokyo, JP;
Yoshiyuki Sato, Tokyo, JP;
Yasunori Ueno, Tokyo, JP;
Yoshiyuki Sato, Tokyo, JP;
Hoya Corporation, Tokyo, JP;
Abstract
A molded product from a mold, the mold for molding a molded product in a desired shape can be designed with high precision by correcting a shape change of the molded product. A mold in which use surfaces of an upper mold and a lower mold are formed to be design curved surfaces of an optical lens is prepared. A curved surface shape of the optical lens molded from this mold is measured, and a measured value is approximated by equation (1). The curved surface of the optical lens specified by the equation and a design curved surface are compared to obtain an error between both the curved surfaces. Information corresponding to the error is used as correction information, and the use surfaces in the upper mold and the lower mold are corrected and designed.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile