Fluorescence reader

US8691153B2 · kind B2 · utility

Assignee

• JOHNSON & JOHNSON AB · SE

Inventors

• Tomas Lindstrom · Uppsala, SE
• Ib Mendel-Hartvig · Uppsala, SE
• Ove Öhman · Uppsala, SE
• Johan Backlund · Onsala, SE
• Kennet Vilhelmsson · Gothenburg, SE

Key dates

• Filing date: Mar 22, 2007
• Grant date: Apr 8, 2014
• Expiry date: Apr 8, 2031

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N2021/6465
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A fluorescence reader for an optical assay arrangement includes a polymeric sample substrate having a reaction site-surface and a substrate surface. A light source is arranged to illuminate the reaction site-surface through the substrate surface, and a detector device is arranged to detect fluorescent light emitted from the reaction site-surface and transmitted through the substrate surface, the substrate surface provided, for example, as a light-collecting body to allow fluorescent light rays exceeding a critical emission angle for total internal reflection to escape the substrate and enter the body.