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:
Aug. 18, 1987
Filed:
Nov. 19, 1985
Applicant:
Inventors:
Horst Piller, Aalen, DE;
Albert Schilling, Aalen, DE;
Assignee:
Carl-Zeiss-Stiftung, Heidenheim, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
350526 ;
Abstract
An illumination apparatus having two separate optical systems each of which is provided with its own light source for the bright-field and the dark-field illumination beam path and which can be optimized independently on one another to meet the different requirements of both types of illumination. The two optical systems are secured to the microscope such that their axes meet at, or in the vicinity of, the bright-field reflector via which the illumination is directed into the observation beam path.