Optical instrument having a variable optical filter

Optical mark recognition apparatus

Optical measurement apparatus

Optical measurement device and related process

Optical measurement device and related process

Optical measurement device and related process

Optical measurement device and related process

Optical measuring device for test strips

Optical method and apparatus for diagnosing human spermatozoa

Optical method of multi-band mixing

Optical method to monitor the processing of a...

Optical microscopy with phototransformable optical labels

Optical monitoring system with molecular filters

Optical multi-beam gas measuring apparatus

Optical rate assay apparatus

Optical readhead

Optical sensing apparatus for CO.sub.2 jet spray devices

Optical sensor for illumination mixtures and method for the...

Optical shutter, spectrometer and method for spectral analysis

Optical spectral analysis apparatus