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:
Feb. 21, 1978
Filed:
Jun. 26, 1975
Applicant:
Inventors:
Benjamin Nuchman, Westbury, NY (US);
Sang Y Whang, Miami, FL (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B24B / ;
U.S. Cl.
CPC ...
5121 / ;
Abstract
A device is provided for forming aspheric surfaces in an optical lens by distorting the lens blank in a predetermined manner and forming spherical surfaces in the distorted lens. One or both surfaces of the lens may be formed with an aspheric surface. The resultant lens may include a cylindrical correction also produced by distortion or may include substantially continuous bifocal lens. The lens is particularly adapted for application as a contact lens.