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Products / Optics / Optical Mirrors / Flat Mirrors / Precision Polished Metal Coatings / λ/20 First Surface Mirrors
See all 48 Products in Family
TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. Learn More

75mm Dia Protected Silver, λ/20 Mirror

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Stock #34-400
- +
C$798.00
Qty 1-5
C$798.00
Qty 6+
C$678.30
Volume Pricing
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Diameter (mm):
75.00 +0.0/-0.10
Surface Flatness (P-V):
λ/20
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
Fused Silica (Corning 7980)
Back Surface:
Commercial Polish
Surface Quality:
20-10
Dimensional Tolerance (mm):
+0.00/-0.20
Coating Specification:
Ravg >98% @ 450 - 2000nm
Ravg >98% @ 2000 - 10,000nm
Coating:
Protected Silver (450-10000nm)
Coating Type:
Metal
Clear Aperture (%):
90.00
Edges:
Ground, protective bevel as needed
Parallelism (arcsec):
30.00
Thickness (mm):
7.50 ±0.20
Thickness Tolerance (mm):
±0.20
Type:
Flat Mirror
Wavelength Range (nm):
450 - 10000

Regulatory Compliance

RoHS 2015:
Compliant
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Reach 223:
Compliant
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Certificate of Conformance:
View
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Product Family Description

  • Precision Fused Silica Substrate
  • 20-10 Surface Quality
  • Low Coefficient of Thermal Expansion

TECHSPEC® λ/20 First Surface Mirrors are polished to industry leading surface accuracy and quality specifications to minimize reflected wavefront error. These mirrors feature a precision fused silica substrate with a low coefficient of thermal expansion. Multiple coating options are available, allowing these mirrors to be integrated into applications spanning the visible through infrared spectra. TECHSPEC® λ/20 First Surface Mirrors are ideal for beam steering and reflection applications and are available in a variety of size, thickness, and coating options.

Note: Surface flatness is measured before coating. 

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