Retarder Plates*


  • Quartz crystal, oriented

Dimensional details

  • Ø 10 mm, Ø 20 mm, Ø 30 mm, other diameters on request
  • Thickness: 0.5 mm – 1.0 mm, other sizes on request
  • Delay: λ/4, λ/2
  • Wavelength range: 180 – 2,700 nm


  • Tolerance on delay: λ/500 
  • Wavefront deformation: λ/10

Higher precision on request.

* We produce 1st-order and multiple-order retarder plates. Retarder plates can be provided with appropriate non-reflecting coatings.


Hellma USA Inc.
80 Skyline Drive
11803 Plainview, NY
United States

Phone: +1 5169 3908 88


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