Signal processing method and apparatus

Simplified double-cavity tunable optical filter using voltage-de

Single aperture thermal image/laser

Single detector receiver for multi-beam LADAR systems

Single detector receiver for multi-beam LADAR systems

Single lens apparatus for three-dimensional imaging having focus

Single lens range imaging method and apparatus

Single photon imaging and timing array sensor apparatus and...

Single plate birefringent optical filter

Single reflex camera with an optoelectronic distance meter mount

Single-channel heterodyne distance-measuring method

Skewed rhombus ring laser gyro

Slant angle laser scanner

Slit-less spectrometer

Small optical microphone/sensor

Spark-discharge apparatus with ground detection safety circuit

Spatial filtering for error detection

Spatial information detecting device and photodetector...

Spatial positioning

Spatial positioning and measurement system