Product added to cart

12.5mm Diameter, 0° AOI, Hot Mirror

Hot Mirrors

Stock #62-621 In Stock
Quantity Selector - Use the plus and minus buttons to adjust the quantity. +
Qty 1-9
Qty 10+
Volume Pricing
Request Quote
Get Product Downloads
Angle of Incidence (°):
Hot Mirror, 0°
Diameter (mm):
12.50 ±0.25
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
Reflection (%):
>95, 750 - 1150nm
Surface Quality:
Thickness (mm):
Transmission (%):
>90, 425 - 675nm
Shortpass Filter
Coating Specification:
Surface 1: 0° Hot Mirror
Surface 2: None
Wavelength Range (nm):
425 - 1150
Surface Flatness (P-V):
4 - 6λ
Coating Type:

Regulatory Compliance

RoHS 2015:
Certificate of Conformance:
Reach 233:

Product Description

When using high power illumination, forced air cooling is recommended.

Product Family Description

  • Ideal for Reducing Heat
  • Reflects >90% of the NIR and IR
  • Transmits >85% of Visible Light

Hot Mirrors are available in 0° or 45° angle of incidence options and are ideal for decreasing the undesirable heat caused by infrared radiation. A multi-layer dielectric coating transmits 85% of visible light while reflecting over 90% of the NIR and IR, making them suited for projection systems where heat build-up can lead to system damage. 

Note: When using high power illumination, forced air cooling is recommended.

Hot 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.