Plano Concave Spherical Lenses - IR Grade CaF2 (PCC)

  • Calcium Fluoride Lenses
  • Ideal for wavelengths over 2000 nm 
  • Focusing or imaging applications 
     Focal Length: f = - R / (n-1)  
     n: refractive index  
     R: radius curvature

These plano-concave lenses are made from infra-red grade Calcium Fluoride and are excellent for use with lasers emitting in the 2 - 5 micron range. They are supplied uncoated but anti-reflection coatings are available on request. Please contact the Lambda’s sales team for more coating information.
 

Material:  IR laser grade CaF2
Surface Flatness: <λ / 4 @ 633 nm
Surface Quality: <20/10 (both sides)
Centration Error: < 3 arc min
Radius of Curvature Tolerance: < Typical ± 0.5%
Diameter Tolerance: < + 0.00 / - 0.20 mm
Thickness Tolerance: < ± 0.25 mm
Clear Aperture: > 85% of diameter

To create a Lambda part number use the following :
 

 Product Type: 
Diameter: 
 Material: 
 Radius:  mm
 Part Description: 
 Price:  US Dollars

If you have any questions, please contact the Lambda Sales Team.