A novel and precise micron-scale nanosecond laser spot measurement based on film-scanning method is presented. The metho......

A novel no-guide light pen type 3D-coordinate measurement system with three sets of position sensitive devices (PSDs) to......

The integrated manufacturing technology is introduced to improve the imaging quality of an off-axis -three-mirror anasti......

A new sub-aperture overlapping area fusion algorithm based on wavelet transformation is proposed to retain high-frequenc......

A novel fiber optic Fabry-Perot (F-P) current sensor is developed based on magnetic fluid as the medium in F-P interfere......

A spectroscopic method to determine thickness of quartz wave plate is presented. The method is based on chromatic polari......

A novel virtual four-ocular stereo measurement system based on single high speed camera is proposed for measuring double......

There exist some shallow scratch defects on the super-smooth optical surface. Their detection has a low efficiency with ......