Real-time calibration for downhole spectrometer

Real-time diffraction interferometer

Real-time imaging spectrometer

Real-time radial shear interferometer

Recessed center post mounted dither system

Reciprocally switched four modulator system

Reduced multicubic database interpolation method for optical...

Reduction of demodulator offset errors in fibre-optic gyroscopes

Reduction of fiber optic gyroscope vibration and temperature-ram

Reentrant fiber raman gyroscope

Reflection-type optical encoder with light receiving array

Reflective alignment position signal producing apparatus

Reflective Fabry-Perot interferometer

Reflective optic system for imaging microplate readers

Refractive index and absorption detector for liquid chromatograp

Refractive relay spectrometer

Refractive-diffractive spectrometer

Refractive-diffractive spectrometer

Refractive-diffractive spectrometer

Relative movement detecting apparatus using a detector positione