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Cylinder lenses, biconcave

1.4-Zylinderlinsen-Bikonkav.jpg
Radius range
  • 2.5 mm radius – ∞
 
Length
  • For 2.5 mm – 5 mm radius: 1 mm – 40 mm
  • For 5 mm – 10 mm radius: 5 mm – 100 mm
  • For 10 mm – 1000 mm radius: 10 mm – 600 mm

 

Width

  • 1 mm – 2 R or 250 mm, respectively
  • On request, round edging can be provided for cylinder lenses: 1 mm – 2 R diameter and 350 mm (max.)
 
Tolerances
  • Radius variance up to 1000 mm: ± 1 %, ± 5 % beyond 1000 mm,up to ± 0.01 mm radius accuracy on request (depending on geometry)
  • Length: ± 0.1 mm
  • Width: ± 0.1 mm
  • Irregularity: λ/4 per 10 mm at 633 nm, reduced to λ/10 on request, optionally available with documentary proof of certification up to maximum diameter of 150 mm (depending on radius)
  • Edge thickness variance: up to ± 0.1 mm (centration), up to 1 μ on request

[Higher precision on request]

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