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

25mm Dia Protected Silver, λ/20 Mirror

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Stock #34-392 In Stock
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£162.35
Qty 1-5
£162.35
Qty 6+
£129.63
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Prices shown are exclusive of VAT/local taxes
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Specifications

General

Type:
Flat Mirror

Physical & Mechanical Properties

Diameter (mm):
25.00 +0.00/-0.20
Back Surface:
Commercial Polish
Clear Aperture (%):
90.00
Edges:
Ground, protective bevel as needed
Parallelism (arcsec):
30.00
Thickness (mm):
4.00 ±0.20

Optical Properties

Surface Flatness (P-V):
λ/20 (flatness pre-coating)
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
Fused Silica (Corning 7980)
Surface Quality:
20-10
Coating Specification:
Ravg >98% @ 450 - 2000nm
Ravg >98% @ 2000 - 10,000nm
Coating:
Protected Silver (450-10000nm)
Coating Type:
Metal
Wavelength Range (nm):
450 - 10000

Regulatory Compliance

RoHS 2015:
Certificate of Conformance:
Reach 242:

Product Details

  • 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. 

Technical Information

Coating Curves

  • Protected Silver (450-10000nm) - Rₛ 45°
  • Protected Silver (450-10000nm) - Rₚ 45°
  • Protected Silver (450-10000nm) - R(avg) 45°
  • Protected Silver (450-10000nm) - R @ 0°
Only 2 different Y Axises can be displayed at one time.

Please note that coating performance outside each product’s specified design range is theoretical and may vary.

Related Products

Custom

Edmund Optics offers comprehensive custom manufacturing services for optical and imaging components tailored to your specific application requirements. Whether in the prototyping phase or preparing for full-scale production, we provide flexible solutions to meet your needs. Our experienced engineers are here to assist—from concept to completion.

Our capabilities include:

  • Custom dimensions, materials, coatings, and more
  • High-precision surface quality and flatness
  • Tight tolerances and complex geometries
  • Scalable production—from prototype to volume

Learn more about our custom manufacturing capabilities or submit an inquiry here.

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