Distance measuring method and distance sensor
Drill bit position sensor
Driverless ellipsometer and ellipsometry
Driving mechanism for driving an oscillating polarizer
Dual circular polarization modulation spectrometer
Dual horizontally oriented triangle shaped optical retarder elem
Dual path interferometer with varying difference in path length
Dual vertically oriented triangular shaped optical retarder elem
Dual-beam-real-time polarimeter
Dynamic imaging microellipsometry
Dynamic three dimensional vision inspection system