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:
Jun. 30, 1987
Filed:
Feb. 14, 1985
Applicant:
Inventor:
Kuo-Ching Liu, Setauket, NY (US);
Assignee:
Quantronix Corporation, Smithtown, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
G01J / ;
U.S. Cl.
CPC ...
250201 ; 250204 ;
Abstract
An autofocusing microscope includes a spot marker assembly for projecting a spot marker on the sample surface. The image of the spot marker is continuously scanned while the objective lens is moved along a preselected range of distances from said sample surface. The lens is then moved to the optimum focusing in accordance with the scanning.