What are the properties of hot mirrors?
Reducing Heat
Reflects >90% @NIR and IR
Transmits >85% @VIS
AOI: 0° or 45°

What kinds of material does Yutai Optics use as substrates for hot mirrors?
In general, Yutai Optics recommends borofloat glass, BK7(K9) or fused silica as the substrate for hot mirrors.

What are the applications of hot mirrors?
Camera sensor protection: blocks IR light to ensure accurate color reproduction (often paired with an IR-cut filter).
Laser systems: splits the visible and infrared portions of laser beams.
Solar simulators: filters non-visible wavelengths to replicate sunlight spectrum.