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

25mm Dia x 12.5mm FL Uncoated, Si Aspheric Lens

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Stock #89-357
Qty 1-5
A$1,000.00
Qty 6+
A$787.20
Volume Pricing
Request Quote
Diameter (mm):
25.00 +0.00/-0.10
Effective Focal Length EFL (mm):
12.50 @ 4000nm
Numerical Aperture NA:
1.00
Back Focal Length BFL (mm):
10.70
Center Thickness CT (mm):
4.75 ±0.10
Coating:
Uncoated
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
Silicon (Si)
Clear Aperture CA (mm):
22.5
Asphere Figure Error (μm RMS):
0.1
Surface Accuracy, P-V (μm):
<0.3
Surface Quality:
60-40
Edge Thickness ET (mm):
2.37
Centering (arcmin):
≤10
Centering, ETD (μm):
<21.8
Bevel:
Protective bevel as needed
f/#:
0.5
Edges:
Diamond Turned
Radius R2 (mm):
87.361
Shape of Back Surface:
Concave
Typical Applications:
1200 - 7000
Conjugate Distance:
Infinite
Focal Length Specification Wavelength (nm):
4000

Regulatory Compliance

RoHS:

Product Family Description

  • Diffraction-Limited Performance
  • Low Density and Dispersion
  • Ideal for Weight Sensitive IR Applications

TECHSPEC® Silicon Aspheric Lenses are high performance, lightweight solutions for MWIR applications, and are ideal alternatives for costly ZnSe lenses and brittle Germanium lenses. TECHSPEC Silicon Aspheric Lenses feature the mechanical and thermal properties required to withstand many of the effects of harsh environments including fluctuations in temperature and pressure. Because silicon is a low density material, these lenses are also ideal for weight-sensitive systems, such as those found in many defense applications.

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