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

1" Dia. λ/10 Fused Silica Dual Surface Flat

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Stock #43-424 Other Coating Options
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S$296.05
Qty 1+
S$296.05
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Surface Flatness:
λ/10
Abbe Number (vd):
67.8
Clear Aperture CA (mm):
22.90
Coating:
Uncoated
Coefficient of Thermal Expansion CTE (10-6/°C):
0.52 (+5 to +35°C)
0.57 (0 to +200°C)
0.48 (-100 to +200°C)
Diameter (mm):
25.40 ±1.0
Diameter (inches):
1.00 ±0.04
Thickness (inches):
0.50 ±0.06
Construction:
Dual Surface
Density (g/cm3):
2.20
Index of Refraction nd:
1.458
Knoop Hardness (kg/mm2):
522
Parallelism (arcmin):
<3
Poisson's Ratio:
0.16
Thickness (mm):
12.70 ±1.5
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
Surface Quality:
60-40
Type:
Interferometry Window
Wavelength Range (nm):
200 - 2200
Young's Modulus (GPa):
73
Bevel:
Protective as needed

Regulatory Compliance

RoHS 2015:
Reach 211:

Product Family Description

  • λ/10 and λ/20 Surface Flatness Options
  • Each λ/20 Flat 76.2mm and Larger Includes a Certificate of Calibration
  • Extended Lifetime in Contact Measurement Applications
  • Single Surface Optical Flats Also Available

Our Precision Dual Surface Optical Flats are precision ground and polished to the stated accuracies on both surfaces so that either face may be used for test applications. Both surfaces are tested and certified by our Zygo Interferometer. Each flat ships in a durable storage case for permanent protection. λ/20 flats that are 76.2mm or larger also include a certificate of calibration.

Technical Information

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