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

25mm Dia., 0.25 NA, Uncoated, NIR Aspheric Lens

TECHSPEC® Near-Infrared (NIR) Aspheric Lenses

TECHSPEC® Near-Infrared (NIR) Aspheric Lenses

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Stock #13-503 3-4 days
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Other Coating Options
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£204.00
Qty 1-5
£204.00
Qty 6+
£163.20
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Diameter (mm):
25.00 +0.00/-0.10
Effective Focal Length EFL (mm):
50.00 @ 780nm
Numerical Aperture NA:
0.25
Back Focal Length BFL (mm):
46.03
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
Aspheric Design Wavelength (nm):
780
Asphere Figure Error, RMS @ 632.8nm:
1.2λ
Coating:
Uncoated
Centering (arcmin):
<3
Surface Quality:
40-20
Clear Aperture CA (mm):
22.5
Edge Thickness ET (mm):
2.86
Center Thickness CT (mm):
6.00 ±0.10
f/#:
2.00
Bevel:
Protective bevel as needed
Shape of Back Surface:
Plano
Type:
Aspheric Lens
Wavelength Range (nm):
350 - 2200
Conjugate Distance:
Infinite
Power (diopters):
20.00

Regulatory Compliance

RoHS 2015:
Reach 219:
Certificate of Conformance:

Product Family Description

  • Optimized for Applications in the NIR
  • Uncoated or AR coated versions available
  • Multiple Design Wavelengths Available

TECHSPEC® Near-Infrared (NIR) Aspheric Lenses are optimized to eliminate spherical aberration in the near-infrared. Manufactured from S-LAH64 or N-BK7 substrates and polished through a computer numerical controlled (CNC) process, these aspheric lenses achieve high precision performance across the NIR spectrum. These NIR aspheric lenses include uncoated substrates designed at 780nm with coating options at 350-700nm, 600-1050nm, or 900-1700nm. TECHSPEC® Near-Infrared (NIR) Aspheric Lenses are available with low numerical aperture designs for applications that require beam shape to be maintained as well as high numerical aperture designs for light-gathering applications. For custom designed CNC polished aspheric lenses, please contact us.