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TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. Learn More

25mm Dia x 25mm FL, V-Coated, λ/40 Aspheric Lens

TECHSPEC® λ/40 Aspheric Lenses

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Stock #22-941 New
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C$900.45
Qty 1-5
C$900.45
Qty 6+
C$720.93
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Specifications

Diameter (mm):
25.00 +0.0/-0.025
Effective Focal Length EFL (mm):
25.00 @ 1550nm
Numerical Aperture NA:
0.25
Back Focal Length BFL (mm):
20.18 @ 1500nm
Center Thickness CT (mm):
8.50 ±0.1
Coating:
V-Coat
Coating Specification:
Rabs < 0.25% @ 1550nm @ 0° AOI
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
Clear Aperture CA (mm):
22.5
Asphere Figure Error (μm RMS):
0.016
Surface Quality:
40-20
Edge Thickness ET (mm):
6.43
Centering (arcmin):
<2.5
Bevel:
Protective bevel as needed
f/#:
2
Design Wavelength DWL (nm):
1550
Shape of Back Surface:
Plano
Damage Threshold, Pulsed:
5 J/cm2 @ 1550nm, 10ns
Conjugate Distance:
Infinite
Focal Length Specification Wavelength (nm):
1550
Durability:
ADHESION AND ABRASION AS PER MIL-PRF13830B APP C, PARA C.3.8.4 AND C.3.8.5

Regulatory Compliance

RoHS 2015:
Reach 224:

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Product Family Description

  • λ/40 RMS Asphere Figure Error
  • 3D Surface Profile Included with Each Lens
  • Uncoated and <0.25% Reflectance V-Coat Available

TECHSPEC® λ/40 Aspheric Lenses guarantee better than λ/40 wave aspheric figure error. Achieved via precision magneto-rheological finishing (MRF), these aspheres offer high numerical apertures with diameters ranging from 15 to 50mm and are ideal for a variety of imaging and low light level applications. Each TECHSPEC λ/40 Aspheric Lens is individually measured and a 3D surface profile is included. For diffraction-limited aspheres designed at specific Nd:YAG laser wavelengths, see our TECHSPEC λ/40 Laser Grade Aspheric Lenses.

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