Fluorescence imaging system

US4786813A · kind A · utility

Assignee

• Hightech Network S.C.I. AB · SE

Inventors

• Sune Svanberg · Lund, SE
• Sune Montan · Lund, SE

Key dates

• Filing date: Jun 23, 1986
• Grant date: Nov 22, 1988
• Expiry date: Jun 23, 2006

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N2021/6421
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A fluorescence imaging system. A light source irradiates an object to be viewed. The irradiated object is imaged through a beam-splitting system to form individual displaced images of the object. The displaced images are further filtered in a filter having a frequency passband different from the other filters. The filtered images are imaged on a detector. The same image point of each image is detected and converted into an electrical signal. A circuit means is provided to receive the signals of each common image point, and weight the same. The weighted signal represents an image point pixel. The weighted pixels are displayed as an image of the object having improved contrast.