Fluorometer with high sensitivity and stability

Focussing error detecting apparatus

Foundation for entraining solar ray collecting devices

Fourier spectrometer arrangement and method of operating a...

Fourier transform spectrometer with a frequency comb light...

Fourier-transform spectrometer configuration optimized for...

Frequency modulation-polarization spectroscopy method and...

Frequency-scanning radiometer

Full width array scanning spectrophotometer

Furnace gas pyrometer

Gas analyzer

Gas detection devices

Gas detector

Germanium infrared window seals

Goniophotometer

Grouping of spectral bands for data acquisition in a...

Gunshot detection system and method

Hair color selector

Hair coloring system

Hand-held, hand-scanned, audio-monitored, infrared detection...