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TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. Learn More
203.2mm Dia. λ/20 Fused Silica Optical Flat

Stock #49-048-000
S$6,160.00
Qty 1-2
S$6,160.00
Qty 3
S$5,544.00
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):
203.20
Diameter (inches):
8.00
Diameter Tolerance (inches):
+0.0/-0.02
Thickness (inches):
1.50
Color:
Clear
Construction:
Single Surface
Density (g/cm3):
2.2
Index of Refraction nd:
1.458
Knoop Hardness (kg/mm2):
522.00
Parallelism (arcmin):
≤3
Poisson's Ratio:
0.16
Thickness (mm):
38.10
Substrate:
Surface Quality:
60-40
Thickness Tolerance (inches):
±0.10
Type:
Interferometry
Wavelength Range (nm):
200 - 2200
Young's Modulus (GPa):
73

Regulatory Compliance

RoHS 2015:
Reach 197:

Product Description

λ/20 flats include a certificate of calibration.

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