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:
Jul. 17, 1990
Filed:
Apr. 03, 1989
Applicant:
Inventor:
Paul S Schmitt, Corning, NY (US);
Assignee:
Corning Incorporated, Corning, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C03B / ; C03B / ;
U.S. Cl.
CPC ...
65 29 ; 65 64 ; 65102 ; 65111 ; 65275 ;
Abstract
Glass optical elements are molded by moving molds toward one another to press the glass and controlling the movement of the molds to balance the complete formation of the molded surfaces. A first mold is moved to a position short of contact with the glass and parked. A second mold is moved into contact with the glass to drive the glass into contact with the molding surface of the first mold. This changes the shape of the optical surface in contact with the second mold so that continued movement of the first and second molds results in balanced molding with the voids between the molding surfaces and the glass being equivalent for both surfaces.