Optical radiation sensor device

US5514871A · kind A · utility

Assignee

• TROJAN TECHNOLOGIES · CA

Inventors

• Stewart J. Hayes · London, CA
• Richard Pearcey · London, CA
• Philip T. White · London, CA
• Peter R. Andreae · London, CA
• Mark R. Lowenstine · London, CA

Key dates

• Filing date: Jan 13, 1994
• Grant date: May 7, 1996
• Expiry date: Jan 13, 2014

Classification

• Technology area (CPC G): Physics
• CPC primary: G01J2001/0285
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

An optical radiation sensor comprising a housing having an inlet which allows radiation to enter the housing, and further comprising the following elements serially disposed after the inlet in the path of the radiation: attenuating aperture means, filter means and sensor means. A fluid disinfection system incorporating the sensor is also described.