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. 26, 1985
Filed:
Jun. 30, 1982
Guenter Reinheimer, Biebertal, DE;
Winfried Kraft, Asslar-Werdorf, DE;
Ernst Leitz Wetzlar GmbH, Wetzlar, DE;
Abstract
A device for checking the adjustment of the light source in an incident light microscope includes a centering cylinder having a configuration similar to an objective which is set into the revolving lens turret and can thus be moved into the path of the illuminating beam. The centering cylinder has a bottom plate with markings, for example, in the form of concentric rings and cross-hairs, located approximately in the rear focal plane of the lenses. The light source is thereby imaged on the markings. Observation is effected through an orifice in the jacket of the centering cylinder, which may be rotated around the optical axis. Focusing and adjustment may then be affected by adjusting the collecting lens and/or the lamp housing.