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:
Sep. 08, 1987
Filed:
Feb. 24, 1986
Applicant:
Inventor:
Frank S Krufka, Mount Joy, PA (US);
Assignee:
RCA Corporation, Princeton, NJ (US);
Primary Examiner:
Int. Cl.
CPC ...
G03B / ; G01N / ; H04N / ;
U.S. Cl.
CPC ...
250201 ; 354402 ; 358227 ; 358 10 ;
Abstract
A system for fine focusing a camera on one surface of a moving curved transparent object includes a digital storage device. The focusing range of the camera is stored in the storage device. A thickness transducer provides a signal representative of the thickness of the object and a displacement transducer provides a signal representative of the distance between the object and the camera. The thickness and the displacement signals are added and provided to the storage device. When the added value is outside the stored range the camera is focused to cause the added value to fall at the middle of the range.