Optical filter system and fluorescence detection system

US10145738B2 · kind B2 · utility

Assignee

• Carl Zeiss Meditec AG · DE

Inventors

• Christoph Nieten · Jena, DE
• Enrico GEIßLER · Jena, DE
• Kai Wicker · Jena, DE
• Alois Regensburger · Erlangen, DE
• Helge Jess · Oberkochen, DE
• Roland Guckler · Ulm, DE
• Christoph Hauger · Aalen, DE

Key dates

• Filing date: Feb 26, 2018
• Grant date: Dec 4, 2018
• Expiry date: Feb 26, 2038

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N2201/06113
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

An optical detection filter has a transmission spectrum for detecting fluorescence light of a plurality of different fluorescent dyes. In the range between 350 nm and 1000 nm, the transmission spectrum has a first stopband (DS1) from Dλ1 to Dλ2, a first passband (DD1) from Dλ2 to Dλ3, a second stopband (DS2) from Dλ3 to Dλ4, a second passband (DD2) from Dλ4 to Dλ5, a third stopband (DS3) from Dλ5 to Dλ6, and a third passband (DD3) from Dλ6 to Dλ7. The stopbands (DS1, DS2, DS3) each have a mean transmittance of at most 0.01, typically at most 0.001 or at most 0.0001, and the passbands (DD1, DD2) each have a mean transmittance of at least 0.5, typically at least 0.8 or at least 0.9; wherein 350 nm≤Dλ1<Dλ2<Dλ3<Dλ4<Dλ5<Dλ6<Dλ7<1000 nm.