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:
May. 25, 2010
Filed:
Sep. 28, 2005
Johannes Winterot, Jena, DE;
Johannes Winterot, Jena, DE;
Carl Zeiss Microimaging GmbH, Jena, DE;
Abstract
A telescope-type stereomicroscope which is outfitted with an objective and two magnification changers arranged downstream of the objective. In this telescope-type stereomicroscope, the light from an object that is being examined enters the objective. Two light bundles of the light re-exiting from the objective, which are oriented parallel to one another, enter the magnification changers. The optical axes of the magnification changers are arranged at a fixed distance from one another. Each magnification changer has an entrance pupil for the light bundle associated with it. The entrance pupil has a diameter Dthat depends on the respective selected magnification, where the condition D>B/1.06 is met at the maximum selected magnification. Optionally, the stereomicroscope meets the condition tan(ω)≧0.16 with respect to the angle ω at which the light coming from an extra-axial point P at the object enters the magnification changers at the lowest possible magnification setting.