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TECHSPEC IG6 Aspheric Lens 25mm Dia. x 12.5mm FL, Uncoated

Stock #88-260
NT$14,220
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NT$14,220
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Diameter (mm):
25.00 +0.0/-0.1
Effective Focal Length EFL (mm):
12.50
Numerical Aperture NA:
1.00
Back Focal Length BFL (mm):
10.6
Focal Length Specification Wavelength (μm):
4.0
Center Thickness CT (mm):
4.50
Center Thickness Tolerance (mm):
0.1
Coating:
Uncoated
Substrate:
IG6 (As40Se60)
Clear Aperture (%):
90.00
Asphere Figure Error (μm RMS):
0.1
Surface Quality:
60-40
Centering (arcmin):
≤5
f/#:
0.5
Density (g/cm3):
4.63
Edges:
Diamond Turned
Index of Refraction nd @ 4μm:
2.795
Knoop Hardness (GPa):
1.04
Operating Temperature (°C):
Maximum: 185
Surface Accuracy, P-V (μm):
0.3
Thermo-optic coefficient dn/dT:
35 x 10-6/K @ 3.4μm
41 x 10-6/K @ 10.6μm
Type:
Aspheric Lens
Wavelength Range (nm):
900 - 13,000
Type of Optics:
Meniscus Lens
Wavelength Range (μm):
0.9 - 13

Regulatory Compliance

Reach 174:
RoHS:

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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