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

3" Dia. Enhanced Aluminum, λ/20 Flat Fused Silica

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Stock #47-573-533
S$876.52
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Qty 1-10
S$876.52
Qty 11+
S$789.73
Volume Pricing
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Surface Flatness:
λ/20
Back Surface:
Commercial Polish
Surface Quality:
60-40
Diameter (mm):
76.20 +0.0/-1.02
Diameter Tolerance (inches):
+0.0/-0.04
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
Coating Specification:
Ravg >95% @ 450 - 650nm
Coating:
Enhanced Aluminum (450-650nm)
Coating Type:
Metal
Clear Aperture CA (mm):
68.58
Note:
Flatness is specified as Peak to Valley
Thickness (mm):
19.10 ±1.5
Thickness Tolerance (mm):
±1.5
Type:
Flat Mirror
Typical Energy Density Limit:
0.2 J/cm2 @ 532nm, 10ns
Wavelength Range (μm):
0.45 - 0.65
Wavelength Range (nm):
450 - 650

Regulatory Compliance

RoHS 2015:
Reach 223:

Product Family Description

  • Fused Silica and ZERODUR® Substrates
  • λ/10 and λ/20 Surface Flatness
  • Variety of Coating Options Offered

TECHSPEC® Precision Optical Flats are ideal for a variety of applications including interferometry, imaging systems, laser applications, optical path folding, and autocollimation. These mirrors are available in a variety of coating and substrate options, along with surface flatness options of λ/10 and λ/20. The first substrate option ZERODUR®, a yellow tinted glass ceramic, features an extremely low coefficient of thermal expansion and is the ideal choice for applications where temperature fluctuation is a concern. The second option, Fused Silica, is optically clear and features excellent resistance to abrasion and high durability, making it the best choice for applications in harsh environments.

TECHSPEC® λ/10 and λ/20 Precision Optical Flats are available for testing and measurement applications.

Note: Surface flatness specifications are measured before coating.

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