High-precision focusing for laser systems has played an essential role in materials
processing. Over the last few decades, the auto-focus (AF) mechanism has grown in …

A new method was developed for measuring an optical freeform surface with a noncontact
laser focusing probe. The measurement process does not require calibration of the focus …

In this paper we propose a novel non-contact method of thickness measurement for a
transparent plate using a laser auto-focus scanning (LAFS) probe. Through the analysis of …

Piezoelectric actuators are used extensively in precision measurement, manufacturing, and
manipulation owing to their high resolution, rapid response, and considerable force output …

Fine micro/nanopattern structures are widely applied to optical elements such as gratings
and metasurface elements. These structures are generally fabricated through a high …

An autofocus, cost-effective fluorescence microscope instrument is made using a
commercially available Blu-ray disc optical pickup head (OPU). This ABFM consists of the …

An optical signal conditioning technique for dynamic modulation of signals and real-time
monitoring of events is pivotal for develo** various optical systems at micro/nano …

光學輪廓儀為一種非接觸式量測儀器, 可以用來量測樣品的表面輪廓, 反射率以及粗糙度等資訊,
目前已經被廣泛應用於電子電機, 半導體製程, 生醫工程以及微機電元件等各種領域 …