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北京歐唐科技發展有限公司 （歐唐科技），成立于2007年，致力于光學精密制造與檢測領域，歷經數十年的積累與沉淀，對國內的技術現狀有一定的了解，并熟悉國外技術的發展。自2023年開始，為相關領域提供專業技術咨詢服務，涉及光學、納米科學、超精密機械、以及智能輔助機械等領域，包括但不限于以下方面：

1）光學材料測量： 折射率、弱吸收、應力雙折射

2）光學制造：傳統光學加工、現代光學數字制造、超光滑拋光；金剛石車削加工、IBF、MRF；磨料、設備等

3）光學薄膜沉積：薄膜設計與培訓、電子束濺射沉積EBD、原子層沉積ALD、離子束濺射沉積IBD、磁控濺射沉積MD

4）光學表面輪廓測量：表面頻譜分析、3D掃描測量，干涉測量，條紋投影測量

5）光學表面微觀粗糙度測量：掃描探針顯微鏡、光學輪廓儀、表面缺陷測量、散射測量

6）波前測量：各種干涉測量（菲索、泰曼格林、馬赫澤德、剪切）、夏克-哈特曼

7）傳統光學參數測量：焦距、傳遞函數MTF、鏡頭質量評估

8）光學鏡頭定心裝配

9）復雜光學系統的輔助裝調：工具、工裝、輔助手段

10）微納光學制造：光柵微結構RIBE刻蝕、反應離子束刻蝕、化學輔助刻蝕

11）光學表面的防護與保護

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