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. 18, 1982
Filed:
Oct. 15, 1979
Gerd Oppenheim, San Francisco, CA (US);
Angus MacDonald, Oakland, CA (US);
Other;
Abstract
Given the known position of the optical center of an unfinished lens which is to be contoured for an eyeglass frame, this invention relates to a single device for locating and aligning the contemplated geometric center of what will be the finished lens with the optical center so that a block may be secured to the lens at such geometric center for holding the lens for contouring. The device comprises a lens holder situated above a slidable grid scale which is used in combination with a fixed scale to decenter the lens on the lens holder such that the contemplated geometric center of the lens will line up above the position of a block that may be accurately moved into place by moving the same slider containing the grid.