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. 11, 2026
Filed:
Sep. 22, 2021
Carl Zeiss Meditec Ag, Jena, DE;
Christian Bittner, Roehlingen, DE;
Christian Beder, Aalen, DE;
Carl Zeiss Meditec AG, Jena, DE;
Abstract
The present invention relates to a filter set, to a fluorescence observation system and to a method for simultaneously observing fluorescent and non-fluorescent regions of an object. The filter set comprises an illumination filter and an observation filter. The illumination filter is configured such that it efficiently transmits visible light having short wavelengths and efficiently blocks light having a long wavelength. The observation filter is configured such that it efficiently blocks visible light having short wavelengths and efficiently transmits light having a long wavelength. The illumination filter and the observation filter are configured such that the product of the transmittance of the illumination filter T(λ) and the transmittance of the observation filter T(λ) are very constant over a high proportion of the visible wavelength range.