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IG6 Aspheric Lens 50mm Dia. x 25mm FL, Uncoated

Stock #88-262
£675.75 £337.88
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Qty 1
£675.75 £337.88
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Diameter (mm):
50.00 +0.0/-0.1
Effective Focal Length EFL (mm):
25.00 @ 4000nm
Numerical Aperture NA:
1.00
Back Focal Length BFL (mm):
22.2
Center Thickness CT (mm):
8.00 0.1
Coating:
Uncoated
Substrate:
IG6 (As40Se60)
Clear Aperture CA (mm):
45
Asphere Figure Error (μm RMS):
0.1
Surface Accuracy, P-V (μm):
0.3
Surface Quality:
60-40
Edge Thickness ET (mm):
1.83
Centering (arcmin):
≤5
Bevel:
Protective bevel as needed
f/#:
0.5
Density (g/cm3):
4.63
Edges:
Diamond Turned
Index of Refraction nd @ 4μm:
2.795
Operating Temperature (°C):
Maximum: 185
Shape of Back Surface:
Plano
Thermo-optic coefficient dn/dT:
35 x 10-6/K @ 3.4μm
41 x 10-6/K @ 10.6μm
Wavelength Range (nm):
900 - 13000
Conjugate Distance:
Infinite
Focal Length Specification Wavelength (nm):
4000

Regulatory Compliance

Reach 174:
RoHS 2015:

Product Description

Use caution when handling IG6 as it is extremely delicate and can be damaged easily. Do not touch optical surface.

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