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

25mm Dia x 25mm FL, Uncoated, 1550nm λ/40 Aspheric Lens

TECHSPEC® λ/40 Aspheric Lenses

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Stock #17-420
- +
$635.00
Qty 1-5
$635.00
Qty 6+
$508.00
Volume Pricing
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Diameter (mm):
25.00 +0.0/-0.025
Effective Focal Length EFL (mm):
25.00 @ 1550nm
Numerical Aperture NA:
0.50
Back Focal Length BFL (mm):
18.97 @ 587.6nm
Center Thickness CT (mm):
8.50 ±0.1
Coating:
Uncoated
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
Clear Aperture CA (mm):
22.5
Surface Quality:
40-20
Edge Thickness ET (mm):
4.25
Centering (arcmin):
<2.5
Bevel:
Protective bevel as needed
f/#:
1
Design Wavelength DWL (nm):
1550
Shape of Back Surface:
Plano
Conjugate Distance:
Infinite
Asphere Figure Error, RMS @ 632.8nm:
λ/40

Regulatory Compliance

RoHS:

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.

Technical Information

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