Simple single-lens equivalent systems for graded-index (GRIN) lenses in inhomogeneous medium obtained using matrix optic......

A non-scanning, non-interferometric, three-dimensional (3D) optical profilometer based on geometric optics, critical ang......

We have proposed and developed a design method of a freeform surfaces (FFSs) based hyper-numerical-aperture deep ultravi......

We propose a new optical profilometer for three-dimensional (3D) surface profile measurement in real time. The deviation......