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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

50 x 75mm Enhanced Aluminum, 4-6λ Mirror

Stock #48-451 3-5 days
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Surface Flatness (P-V):
4 - 6λ
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
Float Glass
Surface Quality:
Dimensions (mm):
50.0 x 75.0
Dimensional Tolerance (mm):
Coating Specification:
Ravg ≥95% @ 450 - 650nm @ 45°
Enhanced Aluminum (450-650nm)
Coating Type:
Clear Aperture CA (mm):
47.50 x 71.25
Seamed, 0.5mm Maximum Edge Chip
Thickness (mm):
Flat Mirror
Wavelength Range (nm):
450 - 650
Length (mm):
Width (mm):
Damage Threshold, By Design: 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:
Certificate of Conformance:
Reach 240:

Product Family Description

  • Wide Variety of Shapes and Sizes Available
  • Enhanced Aluminum, Protected Gold, and Protected Silver Coatings  for high reflectivity from 450-10000nm  
  • Contact Us for Custom Sizes

TECHSPEC® First Surface Mirrors feature a high reflectivity coating deposited on the front surface of the glass substrate. The mirrors are available in enhanced aluminum, protected gold, and protected silver coatings for high reflectivity from 450-10000nm. The coated surface should be oriented to reflect incident light. TECHSPEC 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.  

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