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Lens Autocentering Technology

Photonics.com
Jul 2015
INO - National Optics InstituteRequest Info
 
QUEBEC CITY, July 29, 2015 — INO, the National Optics Institute of Canada, has made available for technology transfer a novel autocentering lens-alignment method.

Based on the geometrical relationship between lens diameter, lens radius of curvature and the thread angle of the retaining ring, the technology allows manufacturers to achieve an alignment speed of 25 seconds per optical element, precise to within less than 5 μm.

The barrel thread angle and the spatial profile of the peripheral region of the lens surface are selected to create autocentering conditions whereby any decentering of the retaining ring and corresponding tilt of the retaining ring have counterbalancing effects on the optical element's centering.


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