This paper presents a new optical system used for quadrant detection, in which point detectors, rather than area detectors, can be used.
本文提出一种新型的用于四象限探测的光学系统，该系统可以用点探测器代替面探测器。
2
A holographic optical element in four quadrant optoelectronic detection has been constructed.
提出了用于四象限光电探测的全息光学元件的制作方法。
3
At the same time optical rotation of the particles was realized. The rotation frequency was measured by CCD camera and quadrant photodiode detector (QD).