北京欧唐科技发展有限公司 （欧唐科技），成立于2007年，致力于光学精密制造与检测领域，历经数十年的积累与沉淀，对国内的技术现状有一定的了解，并熟悉国外技术的发展。自2023年开始，为相关领域提供专业技术咨询服务，涉及光学、纳米科学、超精密机械、以及智能辅助机械等领域，包括但不限于以下方面：

1）光学材料测量： 折射率、弱吸收、应力双折射

2）光学制造：传统光学加工、现代光学数字制造、超光滑抛光；金刚石车削加工、IBF、MRF；磨料、设备等

3）光学薄膜沉积：薄膜设计与培训、电子束溅射沉积EBD、原子层沉积ALD、离子束溅射沉积IBD、磁控溅射沉积MD

4）光学表面轮廓测量：表面频谱分析、3D扫描测量，干涉测量，条纹投影测量

5）光学表面微观粗糙度测量：扫描探针显微镜、光学轮廓仪、表面缺陷测量、散射测量

6）波前测量：各种干涉测量（菲索、泰曼格林、马赫泽德、剪切）、夏克-哈特曼

7）传统光学参数测量：焦距、传递函数MTF、镜头质量评估

8）光学镜头定心装配

9）复杂光学系统的辅助装调：工具、工装、辅助手段

10）微纳光学制造：光栅微结构RIBE刻蚀、反应离子束刻蚀、化学辅助刻蚀

11）光学表面的防护与保护

What we do

Beijing Opturn Technology Co., Ltd. (Opturn）was established in 2007 , dedicated to optical precision manufacturing and testing.  With the strong background in China optics and accumulated knowledge on the world leading edge technologies, we are confident to  provide professional technical consulting services for applications in Optics， Nano Technology，Precision Mechanics and AI Machinery , including but not limited to the following: 

1) Optical material measurement: refractive index, weak absorption, stress birefringence 

2) Optical manufacturing: traditional optical processing, modern optical digital manufacturing, ultra smooth polishing; Diamond turning, IBF, MRF; Abrasives, equipment, etc

3) Optical thin film deposition: thin film design and training, electron beam sputtering deposition EBD, atomic layer deposition ALD, ion beam sputtering deposition IBD, magnetron sputtering deposition MD 

4) Optical surface profile metrology :  surface spatial wavelength analysis, 3D mapping, stylus profiling, inteferometry, fringe projection

5) Optical surface micro-roughness metrology:  SPM, optical profiler, defect damage measurement, scattering measurement 

6) Wavefront measurement: various interferometric measurements (Fizeau, Teymann Green, Mach-zede, shear), Shack-Hartmann

7) Traditional optical parameter measurement: focal length, transfer function MTF, lens quality evaluation 

8) Optical lens centering assembly

9) Auxiliary assembly and alignment of complex optical systems: tools, fixtures, and auxiliary means

10) Micro/nano optical manufacturing: grating & microstructure RIBE etching, reactive ion beam etching, chemical assisted etching

11) Protection of Optical Surfaces