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

20 x 20mm Protected Silver, λ/4 Mirror

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Stock #49-193 In Stock
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$67.50 $54.00
Qty 1-5
$67.50 $54.00
Qty 6+
$54.00 $43.20
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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
Back Surface:
Commercial Polish
Surface Quality:
60-40
Dimensions (mm):
20.0 x 20.0
Dimensional Tolerance (mm):
±0.25
Coating Specification:
Ravg >98% @ 450 - 2000nm
Ravg >98% @ 2000 - 10,000nm
Coating:
Protected Silver (450-10000nm)
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 - 10
Wavelength Range (nm):
450 - 10000
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.
0.5 J/cm2 @ 532nm & 1064nm, 10ns

Regulatory Compliance

RoHS 2015:
Certificate of Conformance:
Reach 233:

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.