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TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. Learn More
3" Dia. λ/20 Fused Silica Dual Surface Flat

Stock #48-131
€820.00
Qty 1
€820.00
Volume Pricing
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Surface Flatness:
λ/20
Abbe Number (vd):
67.7
Coating:
Uncoated
Coefficient of Thermal Expansion CTE (10-6/°C):
0.52
Diameter (mm):
76.20
Diameter (inches):
3.00
Diameter Tolerance (inches):
±0.04
Thickness (inches):
0.75
Construction:
Dual Surface
Density (g/cm3):
2.2
Index of Refraction nd:
1.458
Parallelism (arcmin):
1.00
Poisson's Ratio:
0.16
Thickness (mm):
19.05
Surface Quality:
60-40
Thickness Tolerance (inches):
±0.06
Type:
Interferometry
Wavelength Range (nm):
200 - 2200
Young's Modulus (GPa):
73

Regulatory Compliance

RoHS 2015:
REACH 201:

Product Description

λ/20 flats include a certificate of calibration.

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