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. 24, 2011
Filed:
Feb. 18, 2005
Jun Kawakubo, Tokyo, JP;
Satoshi Annaka, Tokyo, JP;
Jun Kawakubo, Tokyo, JP;
Satoshi Annaka, Tokyo, JP;
Hoya Corporation, Tokyo, JP;
Abstract
A centering device () is arranged to surround a loading table () on which a lens blank () is to be set, to set the geometric center of the lens blank () to coincide with the center of the loading table (). The centering device () includes three clamp pins () which press the peripheral surface of the lens blank (). When centering is ended, the loading table () on which the lens blank () is set is pushed up by a moving device () from a centering position (H) to a block position (H), and a peripheral portion of the lens blank () on a concave surface side is urged against the lower surfaces of locking portions (A) of clamp pins (). After a predetermined amount of wax () is dripped onto the lens blank (), a lens holding unit () is moved downward by a predetermined amount and urged against the wax on the lens blank () to spread the wax thin and let the wax to solidify. Thus, the lens blank () and lens holding unit () are bonded to each other.