eo_logo
  • Country/Region
  • cart   
 
See all 26 Products in Family
TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. Learn More

20.0mm Diameter x -40 FL, MgF2 Coated, Plano-Concave Lens

×
Stock #45-023 Other Coating Options
×
- +
$34.50 $25.88
Qty 1-9
$34.50 $25.88
Qty 10+
$30.75 $23.06
Volume Pricing
Request Quote
×
Get Product Downloads

Specifications

Diameter (mm):
20.00 +0.0/-0.025
Effective Focal Length EFL (mm):
-40.00
Back Focal Length BFL (mm):
-42.31
Coating:
MgF2 (400-700nm)
Coating Specification:
Ravg ≤1.75% @ 400 - 700nm
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
Surface Quality:
40-20
Power (P-V) @ 632.8nm:
1.5λ
Irregularity (P-V) @ 632.8nm:
λ/4
Center Thickness CT (mm):
3.50
Center Thickness Tolerance (mm):
±0.10
Focal Length Tolerance (%):
±1
Focal Length Specification Wavelength (nm):
587.6
Centering (arcmin):
<1
Clear Aperture CA (mm):
19.00
Edge Thickness ET (mm):
5.69
Radius R1 (mm):
-20.67
f/#:
2.00
Numerical Aperture NA:
0.25
Bevel:
Protective bevel as needed
Type:
Plano-Concave Lens
Typical Energy Density Limit:
10 J/cm2 @ 532nm, 10ns
Wavelength Range (nm):
400 - 700
Damage Threshold, By Design: Damage threshold for optical components varies by substrate material and coating. Click here to learn more about this specification.
10 J/cm2 @ 532nm, 10ns

Regulatory Compliance

RoHS 2015:
Reach 224:

Learn More

Product Family Description

Plano-Concave (PCV) lenses have one flat and one inward curved surface. PCV lenses have a negative focal length and are used for image reduction or to spread light.

Technical Information

Compatible Mounts

Title  Type Compare Stock Number  Price Buy
20.0mm Optic Dia., Optic Mount Fixed #64-559 $30.00
Qty 10+ $27.00 Request Quote
  • In Stock
    ×
20mm Diameter, C-Mount Thick Optic Mount Fixed #54-626 $48.00
Qty 5+ $42.50 Request Quote
  • In Stock
    ×
×