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Calcium Fluoride Lens

supheric

 

 

 

 

 

 

 

Calcium Fluoride is often used in spectroscopic windows and lenses due to its high transmission from 350nm to 7µm. Calcium Fluoride is also commonly found in cryogenically cooled thermal imaging systems. Its low absorption and high damage threshold makes it a popular choice for excimer laser optics. Calcium Fluoride’s low refractive index allows it to be used without an antireflective coating. The Knoop hardness of Calcium Fluoride is 158.3.

Factory Standard – Contact us for manufacturing limit or custom specifications.

  • Substrate Material: UV & IR grade CaF2
  • Shape: Spherical Plano-Concave, P-Convex, Concave-Convex or Aspheric
  • Surface Figure: λ /4 at 633nm typical
  • Surface Quality: 60-40 per MIL-PRF-13830B
  • Dimensional Tolerance: + 0.00mm, – 0.25mm
  • Thickness Tolerance: +/- 0.25mm
  • Chamfer: 0.35mm at 45° typical
  • Concentricity: 0.05mm
  • Focal Length Tolerance: +/- 0.5% typical
  • Antireflection Coating: User specified, R<0.25% per surface
  • Clear Aperture: Exceeds central 85% of dimension
  • Damage Threshold: 5J/cm2, 20ns, 20Hz at 1064nm
IR GRADEAll measurements in mm
Part NumberNominalDiameter800nm1064nm2940nm5000nmRadius
FDFFFFRTCTE
PLCX-25.4-20.6-CFIR5025.447.848.149.351.620.67.43
PLCX-25.4-31.4-CFIR7525.472.973.27578.631.45.73
PLCX-25.4-41.9-CFIR10025.497.397.8100.110541.953
PLCX-38.1-41.9-CFIR10038.197.397.8100.110541.98.64
PLCX-25.4-62.7-CFIR15025.4145.7146.4150157.262.74.33
PLCX-25.4-83.8-CFIR20025.4194.7195.7200.5210.283.843
PLCX-25.4-104.0-CFIR25025.4241.6242.7248.7260.71043.83
PLCX-25.4-210.0-CFIR50025.4487.8490.1502.1526.42103.43
PLCX-25.4-417.7-CFIR100025.4970.1974.7998.51046.9417.73.23
UV GRADEAll measurements in mm
Part NumberNominalDiameter193nm212nm248nm308nmRadius
FDFFFFRTCTE
PLCX-12.7-11.9-CFUV2512.723.624.425.323.211.93.82
PLCX-25.4-23.6-CFUV5025.44748.550.452.123.66.73
PLCX-25.4-35.0-CFUV7525.469.872.174.877.3355.43
PLCX-25.4-46.4-CFUV10025.492.595.699.1102.546.44.83
PLCX-38.1-46.4-CFUV10038.192.595.699.1102.546.48.14
PLCX-25.4-70.6-CFUV15025.4140.8145.4150.915670.64.23
PLCX-50.8-70.6-CFUV15050.8140.8145.4150.915670.69.75
PLCX-50.8-93.2-CFUV20050.8185.9192199.220693.28.65
PLCX-25.4-118.0-CFUV25025.4235.2243252.1206.71183.73
PLCX-25.4.231.8-CFUV50025.4462.2477.4495.3512.2231.83.33
PLCX-50.8-231.8-CFUV50050.8462.2477.4495.3512.2231.86.45
PLCX-25.4-469.5-CFUV100025.4936.2966.91003.21037.5469.53.23
PLCX-50.8-469.5-CFUV100050.8936.2966.91003.21037.5469.55.75

Please contact our sales engineers for your custom Calcium Fluoride Lens solutions today.

Call us to find out more about our services at +1 732-321-6915 or our design services team info@shanghai-optics.com directly for free initial technical consultation.

Our Optics, Your Vision!