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Lens / Pickup Tester
Sextant Labs introduces its lens and optical pickup tester based on its successful Interferometer System.  This single pass arrangement is capable of measuring small aperture (as small as 0.2mm), high N.A. (as large as 0.85) lenses as well as high emission angle optical pickups.  Versatile tooling considers all aspects of the measurement task.  A dual carrier provides for two optical disk substrate simulators and an internal alignment laser allows removal of all coma inducing tilts.  Numerous other features make this tool ideal for the wavefront analysis of CDROM, 660nm DVD, and the new 410nm DVD optical heads and high N.A. lenses.

 

Easily Measure - 

  • High N.A. Lenses
  • Optical Pickup Heads
  • Collimated Beams
System Layout

The Lens Tester measures the test lens wavefront quality by recollimating light passing through the lens and steering it into the interferometer head.  The three main components of this tooling are -

Recollimation Tower Component

  • Kinematic objective lens mount

  • Dual disk simulator mount

  • Tower retracts for station reconfiguration

  • All components tilt adjustable

Test Lens Holder Stage Component

  • X Y Z and Tilt adjustable
  • Piezo-electric fine adjust
  • Retracts for easy access

Precision Source Component

  • < 0.010 wave ASTG & COMA
  • X Y and Tilt Adjustment
  • Selectable aperture size
 
Copyright 2003 by Sextant Labs, Inc.  All rights reserved.