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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

25 x 35mm Protected Silver, λ/4 Mirror

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Stock #46-724 3-5 days
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S$117.99
Qty 1-5
S$117.99
Qty 6+
S$94.09
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Specifications

General

Type:
Flat Mirror

Physical & Mechanical Properties

Back Surface:
Fine Ground
Dimensions (mm):
25.0 x 35.0
Dimensional Tolerance (mm):
+0.0/-0.5
Bevel:
Protective bevel as needed
Clear Aperture (%):
85
Edges:
Fine Ground
Thickness (mm):
5.00 +0.5/-0.0
Length (mm):
35.00
Width (mm):
25.00

Optical Properties

Surface Flatness (P-V):
λ/4
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
BOROFLOAT®
Surface Quality:
60-40
Coating Specification:
Ravg >98% @ 450 - 2000nm
Ravg >98% @ 2000 - 10,000nm
Coating:
Protected Silver (450-10000nm)
Coating Type:
Metal
Wavelength Range (μm):
0.45 - 10
Wavelength Range (nm):
450 - 10000
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:
Compliant
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Certificate of Conformance:
View
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Reach 247:
Compliant
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Product Details

  • 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: Surface flatness is measured before coating. 

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

Coating Curves

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.

Compatible Mounts