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:
Apr. 15, 2003
Filed:
Sep. 05, 2000
Torsten Dieter, Bad Soden/Salmunster, DE;
Rudolf Beckman, Hanau, DE;
Alfons Zoller, Bad Soden/Salmunster, DE;
Harro Hagedorn, Frankfurt, DE;
Balzers Leybold Optics GmbH, Hanau, DE;
Abstract
Process for continuous determination of the optical layer thickness of coatings, which are applied on both sides of the spherical surfaces of concave convex lenses having different spherical radii R and R . In this process a ray of light is beamed eccentrically during the coating process at each concave convex lens, and the reflection or transmission at the convex spherical surface and at the concave spherical surface is continuously measured with photodiodes, and the respective optical layer thickness is determined from the functional relationship between the reflection or the transmission and the optical layer thickness.