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:
Dec. 18, 1990
Filed:
Aug. 24, 1989
Applicant:
Inventors:
William A Barrett, San Jose, CA (US);
Amitabh Puri, Santa Clara, CA (US);
Assignee:
Lasa Industries, Inc., San Jose, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
250548 ; 250561 ; 356-1 ; 356152 ;
Abstract
An automatic leveling system and a method of use of the leveling system that is suited for use with electronic components. The system uses an automatic laser focus system to focus on three separate locations on a workpiece, and the information about the focus positions is sent to a control computer. In the control computer the focus information is transformed into information concerning how far the workpiece is from being level. The computer sends signals to pitch and roll goniometers that move in response to the signals, thus leveling the workpiece.