Imaging system

Improved diffuse reflectance monitoring apparatus

Improved flame sensor for a burner

Improved mode matching for cavity ring-down spectroscopy...

Improved optical activity detector for use with optically...

Improved optical radiation sensor system

Improved stepped etalon

Improvements in interferometer devices, especially for...

Improvements in or relating to the calibration of infra red...

Improvements in, or relating to, infra-red detection

In-flight engine control pyrometer

In-situ detection and analysis of methane in coal bed...

In-stream spectroscopic elemental analysis of particles...

Induction device for generating a plasma

Industrial colorimeter having lamp aging compensation means

Industrial colorimeter having light intensity compensation...

Infra-red dynamic flame detector

Infra-red radiation detector

Infra-red radiation detector

Infra-red radiation detector