快速调换光学镜片的夹持装置

本实用新型涉及一种快速调换光学镜片的夹持装置，包括通过可拆分结构固定配合的固定底座以及光学镜片固定架，所述固定底座通过底座固定机构与光学调整装置固定连接，所述光学镜片固定架上设有用于安装光学镜片的第一通孔，所述第一通孔边缘设有光学镜片固定机构，所述固定底座上设有与第一通孔对应的第二通孔；第一通孔、第二通孔和光学镜片同轴设置。本实用新型采用固定底座与光学调整装置配合固定，通用性强；通过拆分光学镜片的固定架来实现调换光学镜片，快捷简便，并且不影响光学元件的位置精

多角度微调平台

本实用新型涉及一种多角度微调平台，该多角度微调平台包括平台底座以及微调平台；所述平台底座与微调平台之间设有一至少局部表面为球面的连接机构，球面连接机构周围分布有至少三个用于调节平台底座和微调平台之间距离的微调连接件；平台底座与微调平台之间通过微调连接件耦合连接并调节；该多角度微调平台结构简单，通用性强，操作简便

The experiment and theoretical analysis of the completely inelastic collision of microspheres and optical microrotor

Optical tweezers have been successfully utilized in various scientific and engineering fields such as medicine, biology and MEMS. However, there is still a lack of a sophisticated model for optical tweezers on driving complex objects. In this paper a new electromagnetic model of optical tweezers based on moment method is presented. Optical force acting on a single microsphere and two microspheres is experimentally analyzed and the experimental results are compared with the simulated ones which are obtained by our model. A microrotor which can be used as a mixer in a lab-on-chip is also analyzed by the model. The results indicate that the algorithm presented here can be easily extended to multi complex structures and to torque computation algorithms, thus providing a highly flexible and universally useable computation engine