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. 26, 1989
Filed:
Oct. 21, 1988
Applicant:
Inventor:
Bernd Faltermeier, Aalen, DE;
Assignee:
Carl-Zeiss-Stiftung, , DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B / ; G01N / ;
U.S. Cl.
CPC ...
356432 ; 350442 ; 350444 ; 350446 ; 350511 ; 356219 ; 356225 ;
Abstract
A photometer tube for microscopes is provided with a device by means of which the measurement field diaphragm of the photometer is superimposed on the intermediate image of the object in the binocular tube. For the reflecting-back of the measurement field diaphragm, which is illuminated from the rear, into the binocular tube, the residual reflection of an uncoated glass-air interface in the ray path between the objective and the beam divider of the microscope is utilized. This surface may be one of the surfaces of the tube lens systems of the microscope.