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Study on precision processing of L-form ZnSe deflect prism

MetadataDetails
Publication Date2016-10-27
JournalProceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE
AuthorsSizhe Ye, Changshun Hui, Hao Zhang, Yongbin Lu
InstitutionsTianjin University

As the core component of optical system of Roll-Pitch seekers, the L-form ZnSe deflect prism is directly affecting the imaging quality of optical. For L-form defect prism’s complex polyhedron plane structure and the feature of CVD ZnSe polycrystalline material, this paper propose one processing of single point diamond fly-cutting, analyze the transformation calculation method of each plane’s coordinate. A kind of special clamp which ensure that all working surface of prism could be cut by once clamping is designed. Base on parameters of turning for CVD ZnSe , the deflect prisms are been processed, the measure result of angle error is below 12ā€, the surface error (rms) reach 0.022Ī», which satisfies the demand of manufacturing accuracy. It provide effective processing methods for optical parts with complex space.

  1. 2013 - 90°off-axis angle infrared optical system of roll-pitch seeker
  2. 2008 - Tracking principle for roll-pitch seeker
  3. 2012 - Fly-cutting and testing of freeform optics with sub-μm shape deviations
  4. 2010 - Fabrication and current optical performance of a large diamond-machined ZnSe immersion grating
  5. 2010 - CNC Precision Shaping for Two-dimension Polygon Scanner of Ge Crystal
  6. 2009 - Technological parameter optimization of micro structured surfaces by diamond fly cutting
  7. 2010 - Characterization of Ultra-precision machined surfaces with power spectral density