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λ/20 Optical Flats

3 Results
Single Sided Optical Flats
from Advanced Optics, Inc.

Single sided optical flats are used as a reference (test plate) against which the flatness of an unknown surface can be compared. Advanced Optics offers single sided optical flats made of low expansion borosilicate glass, fused silica, fused quartz and ZERODUR ® up to 8 inches in diameter. [See More]

  • Surface Flatness: λ/10; λ/20
  • Optical Flat Diameter, Side Length, or Rectangular Length: 25.4 to 203
  • Optical Flat Shape: Circular
  • Thickness: 12.7 to 33.78
Transmission Flats 4” and 6”
from Tower Optical Corporation

The surface flatness of plano elements such as mirrors, prisms and windows can be verified by the use of an interferometer in conjunction with a transmission flat. Transmission flats are used when measuring the surface flatness or transmitted wavefront of flat surfaces or optics. The Tower 4 ”... [See More]

  • Surface Flatness: λ/20
  • Optical Flat Diameter, Side Length, or Rectangular Length: 114 to 181
  • Optical Flat Shape: Circular
  • Thickness: 19 to 28.2
Optical Flats
from Fairfield Crystal Technology, LLC.

OPTICAL COMPONENT MANUFACTURING. Fairfield Crystal provides component manufacturing for your most challenging designs and applications. Combined with our expertise in crystal growth our component fabrication team is able to manufacture highly polished single crystal lenses, prisms, wedges,... [See More]

  • Surface Flatness: λ/2; λ/4; λ/5; λ/8; λ/10; λ/20
  • Surface Quality: 10-5 Scratch / Dig; 20-10 Scratch / Dig; 40-20 Scratch / Dig; 60-40 Scratch / Dig; 80-50 Scratch / Dig