Frequently Asked Questions

A hot mirror is used to separate visible light from heat by reflecting the heat.

The most common wavelength range for an average transmission of 85% through a hot mirror is 420 - 700nm.

A cold mirror is used to reflect visible light and remove the heat by transmission.

The most common wavelength range for transmission through a cold mirror is 800 - 1200nm.

The reflective range for a hot mirror for R>95% is 800 - 1000nm, and R>50% from 735 - 1080nm.

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