美女的隐私视频露出来_国产丝袜精品丝袜久久_99久久综合狠狠综合久久_女仆裸乳给主人吃奶网站

F-Theta scan lenses
F-theta scan lens is also called flat field lens or the linear lens.The radial image height equals to focal length of the lens multiplied by the angle of the chief ray makes in the object space.While General focusing lenses deliver a focused spot to only one point,They deliver a focused spot to many points on a scan field or workpiece. The applications :Laser Marking; Engraving; Rapid prototyping; Drilling and Cutting systems . 扫描透镜工作波长:10.6um、1064nm、532nm、405nm、355nm、266nm。
Copyright Changsha Rongsheng Optical Technology Co., Ltd.
Phone:0731-89793990 Address:186 Valley Road, High-Tech Development Zone, Changsha Court