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

25mm Dia. x 75mm FL, 3 - 5μm Coated, Si Plano-Convex Lens

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Stock #69-687 Other Coating Options
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€310,00
Qty 1-5
€310,00
Qty 6+
€263,50
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Diameter (mm):
25.00 +0.0/-0.1
Effective Focal Length EFL (mm):
75.00 @ 10.6μm
Back Focal Length BFL (mm):
74.12
Coating:
BBAR (3000-5000nm)
Coating Specification:
Ravg <3.0% @ 3 - 5μm
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
Silicon (Si)
Surface Quality:
60-40
Power (P-V) @ 632.8nm:
Irregularity (P-V) @ 632.8nm:
λ/2
Centering (arcmin):
<3
Center Thickness CT (mm):
3.00 ±0.10
Edge Thickness ET (mm):
2.57
Radius R1 (mm):
181.32
Clear Aperture CA (mm):
24
f/#:
3.00
Numerical Aperture NA:
0.17
Type:
Plano-Convex Lens
Bevel:
Protective bevel as needed
Wavelength Range (nm):
3000 - 5000

Regulatory Compliance

RoHS 2015:
Certificate of Conformance:
Reach 233:

Product Family Description

  • Wavelength Range of 1.2 - 7μm
  • Low Density and Dispersion
  • Focal Lengths of 25 – 250mm Available
  • Additional Infrared Lenses Available in Popular Substrates

Our TECHSPEC® Silicon Plano-Convex (PCX) Lenses feature precision polished surfaces, making them ideal for a variety of infrared applications, including Near-Infrared (NIR) imaging, and infrared spectroscopy. Available in a variety of focal lengths from f/1 thru f/10, the lenses are offered uncoated or broadband anti-reflection coated. For more information on Silicon properties, please review our guide to selecting The Correct Material for Infrared (IR) Applications.

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