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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

21 x 30mm UV Enhanced Aluminum, λ/4 Mirror

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Stock #46-717 Contact Us
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S$79.75
Qty 1-5
S$79.75
Qty 6+
S$63.80
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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:
Fine Grind
Surface Quality:
60-40
Dimensions (mm):
21.0 x 30.0
Dimensional Tolerance (mm):
+0.0/-0.5
Coating Specification:
Ravg >89% @ 250 - 450nm
Ravg >85% @ 250 - 700nm
Coating:
Enhanced Aluminum (250-700nm)
Coating Type:
Metal
Bevel:
Protective bevel as needed
Clear Aperture (%):
85
Edges:
Fine Ground
Thickness (mm):
5.00 +0.5/-0.0
Type:
Flat Mirror
Wavelength Range (μm):
0.25 - 0.7
Wavelength Range (nm):
250 - 700
Length (mm):
30.00
Width (mm):
21.00
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 @ 355nm, 10ns

Regulatory Compliance

RoHS 2015:
Compliant
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Certificate of Conformance:
View
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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.