Plano Convex Spherical Lenses BK7A (PCX)

  • BK7A for Visible & Near IR applications
  • The focal length is designed at 633nm
                 Focal Length: f = R/(n-1)
                 n: refractive index
                 R: radius of curvature

Plano-convex lenses are useful for a wide range of applications. These lenses are manufactured from BK7A for visible and Near IR applications. All lenses are uncoated but Anti-reflection coatings are available. When used to focus a collimated beam, the light should be incident on the curved surface of the lens. These plano-convex lenses may be combined with other lenses to form complex imaging systems.

Material: BK7 grade A
Surface Flatness: < λ / 10 @ 633 nm
Surface Quality: <10/5 (both sides)
Centration Error: < 3 arc min
Focal Length Tolerance: (@633nm) < ± 0.5%
Diameter Tolerance: < + 0.00 / - 0.20 mm
Thickness Tolerance: < ± 0.25 mm
Clear Aperture: > 85% of diameter

FL to ROC Conversion Table:
 
 FL @ 633nm (mm) FL @ 532nm (mm)  Radius of Curvature (mm)
20 19.83 10.30
25 24.78 12.87
30 29.74 15.45
38 37.67 19.57
50 49.57 25.75
75 74.36 38.63
100 99.16 5150
150 148.98 77.39
200 198.47 103.10
250 247.95 128.50
300 297.42 154.50
400 397.71 206.60
500 495.70 257.50
750 743.64 515.10

 

To create a Lambda part number use the following :
 

 Product Type: 
Diameter: 
 Material: 
 Focal Length:  mm @ 633nm
 Part Description: 
 Price:  US Dollars

Price for AR coated lens(es):

  • Locate the uncoated lens from the drop-down options. Add the coating price to the indicated list price.
  • Coatings are applied on both surfaces of the lens(es).
 AR coating type  Add to the list price Coating Specifications
Single layer MgF2 (SAR) + $20.00/ea More Information
V type AR for VIS & NIR  (VAR) + $25.00/ea More Information
Broadband AR for VIS & NIR (BBAR) + $30.00/ea More Information

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