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

45° AOI, 101 x 127mm, Hot Mirror

TECHSPEC High Performance Hot Mirrors

Stock #64-472
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Angle of Incidence (°):
Hot Mirror, 45°
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
Dimensions (mm):
101.0 x 127.0
Surface Quality:
Thickness (mm):
Thickness Tolerance (mm):
Dichroic Filter
Dimensional Tolerance (mm):
Coating Specification:
Tavg >85% @ 400 - 690nm, Ravg >95% @ 750 - 1125nm
AR: Ravg <1% @ 400 - 700nm
Wavelength Range (nm):
400 - 1125
Surface Flatness (P-V):
4 - 6λ
Coating Type:

Regulatory Compliance

RoHS 2015:
Reach 224:
Certificate of Conformance:

Product Family Description

  • High Transmission from 400 - 690nm
  • High Reflection from 750 - 1125nm
  • Ideal for Minimizing Heat Build-Up

TECHSPEC® High Performance Hot Mirrors feature a multi-layer dielectric coating optimized for greater than 85% transmission of visible light and greater than 95% reflection of IR wavelengths. For high power illumination, forced air cooling is recommended.

Hot mirrors, also known as heat-reflecting mirrors, are crucial in many projection and illumination systems where high levels of heat can quickly damage sensitive components. Hot mirrors are specially coated to transmit visible light while reflecting the NIR, a major attributor to heat generation. By using a hot mirror, heat levels are limited with minimum impact on the overall system performance.

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