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. 22, 1994
Filed:
Sep. 24, 1992
Applicant:
Inventors:
Uwe Vry, Aalen, DE;
Christian Lucke, Oberkochen, DE;
Ulrich Sander, Oberkochen, DE;
Werner Muller, Essingen, DE;
Joachim Luber, Essingen, DE;
Klaus Knupfer, Essingen, DE;
Thomas Hellmuth, Oberkochen, DE;
Rudiger Duchateau, Aalen-Unterkochen, DE;
Hartmut Wolf, Oberkochen, DE;
Assignee:
Carl-Zeiss-Stiftung, Heidenheim, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01J / ;
U.S. Cl.
CPC ...
2502013 ; 359376 ;
Abstract
The invention relates to a high-precision autofocusing arrangement for a stereomicroscope wherein a bar-shaped marking is projected via a cylinder optic on an object. The imaged bar-shaped marking is at least in one dimension less or equal to the resolution of the viewing beam path. A region of the objective not used optically is selected for projection as the pass-through pupil.