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All Products / Optics / Optical Mirrors / Flat Mirrors / Precision Polished Metal Coatings / λ/4 First Surface Mirrors
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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

20 x 20mm Enhanced Aluminum, λ/4 Mirror

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Stock #45-728 3-5 days
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Quantity Selector - Use the plus and minus buttons to adjust the quantity. +
A$88.00
Qty 1-5
A$88.00
Qty 6+
A$70.40
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Surface Flatness (P-V):
λ/4
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
BOROFLOAT®
Back Surface:
Commercial Polish
Surface Quality:
60-40
Dimensions (mm):
20.0 x 20.0
Dimensional Tolerance (mm):
±0.25
Coating Specification:
Ravg >95% @ 450 - 650nm
Coating:
Enhanced Aluminum (450-650nm)
Coating Type:
Metal
Bevel:
Protective bevel as needed
Clear Aperture (%):
85
Edges:
Fine Ground
Thickness (mm):
2.00 ±0.25
Type:
Flat Mirror
Wavelength Range (μm):
0.45 - 0.65
Wavelength Range (nm):
450 - 650
Length (mm):
20.00
Width (mm):
20.00
Damage Threshold, Reference: Damage threshold for optical components varies by substrate material and coating. Click here to learn more about this specification.
0.2 J/cm2 @ 532nm, 10ns

Regulatory Compliance

RoHS 2015:
Compliant
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Certificate of Conformance:
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REACH 241:
Compliant
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Product Family Description

  • Available in a Wide Range of Sizes and Shapes
  • Precision Metallic Mirror Coatings
  • Contact Us for Custom Sizes

TECHSPEC® λ/4 First Surface Mirrors feature a high reflectivity coating deposited on the front surface of the glass substrate. The coated surface should be oriented to reflect incident light. TECHSPEC λ/4 First Surface Mirrors are offered in circular, square, and rectangular dimensions. First surface mirrors are ideal for applications requiring the mirror to be mounted at 45° in order to produce a 90° bend in the light path. These first surface mirrors easily mount into a range of optical mounts to facilitate application integration. The mirrors have available coatings of enhanced aluminum, protected aluminum, protected silver, and protected gold.

Note:  A range of mounts specifically compatible with individual TECHSPEC® First Surface Mirrors can be found on product web pages.