Speckle pattern interferometer
Spectrometer and method of examining spectral composition of lig
Spectrophotometer with photodiode array
Spectroscopic auto ellipsometer
Sugar concentration gauge
Sulfur detecting apparatus comprising holmium, and erbium filter
System for detecting a first light transmissive substance, such
Target method and systems for bonding machines
Testing and inspecting lens by holographic means
Textile color analyzer calibration
Torque transducer utilizing differential optical sensing
Traffic survey system
Translator for measuring amount of color correction for color
Transmitted light refractometer
Transmitted light refractometer
Triangular interferometric light-source tracker
Tristimulus colorimeter for use in the fabrication of artificial
Tuning of etalons in spectroscopic apparatus
Two-axis moire fringe displacement transducer
Two-beam colorimeter