eo_logo
  • Country/Region
  • cart   
 
See all 12 Products in Family
TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. Learn More

4" Dia. λ/20 Fused Silica Dual Surface Flat

Stock #48-132
A$2,016.00 Other Coating Options
×
Qty 1
A$2,016.00
Volume Pricing
Request Quote
Surface Flatness:
λ/20
Abbe Number (vd):
67.8
Clear Aperture CA (mm):
91.40
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):
101.60 ±1.0
Diameter (inches):
4.00 ±0.04
Thickness (inches):
0.75 ±0.06
Construction:
Dual Surface
Density (g/cm3):
2.20
Index of Refraction nd:
1.458
Knoop Hardness (kg/mm2):
522
Parallelism (arcmin):
≤1
Poisson's Ratio:
0.16
Thickness (mm):
19.05 ±1.5
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
Surface Quality:
60-40
Type:
Interferometry
Wavelength Range (nm):
200 - 2200
Young's Modulus (GPa):
73
Bevel:
Protective as needed

Regulatory Compliance

RoHS 2015:
Reach 197:

Product Description

λ/20 flats include a certificate of calibration.
Title  Compare Stock Number  Price Buy
108.0mm Max Optic Dia., Jaw Clamp #53-038 A$878.40
Qty 5+ A$790.80 Request Quote
  • 3-5 days
    ×
108.0mm Max Optic Dia., Jaw Clamp and 6" Kinematic Mount #53-040 A$1,320.00
Qty 5+ A$1,254.00 Request Quote
  • 3-5 days
    ×
8.0 - 118.0 Optic Height, English Bar-Type Optic Holder #03-666 A$152.40
Qty 10+ A$137.20 Request Quote
  • 3-5 days
    ×
19.5 - 108.0mm Optic Dia., Three-Screw Adjustable Ring Mount #03-670 A$138.80
Qty 10+ A$125.20 Request Quote
  • 3-5 days
    ×
100.0/101.6mm Optic Dia., E-Series Kinematic Mount #15-869 New
×
A$398.40
Qty 10+ A$377.60 Request Quote
  • 3-5 days
    ×

Need a Quote? Add a stock number to begin our two-step quote process.

Edmund Optics Facebook Edmund Optics Twitter Edmund Optics YouTube Edmund Optics LinkedIn Edmund Optics Instagram Edmund Optics Tick Tock

×