TOWER HOT and Cold Mirrors

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TOWER OPTICAL 社製 Hot and Cold Mirrors

Hot Mirrors are used in applications when there is the requirement to separate visible light from heat. The hot mirror accomplishes this by reflecting the heat. The use of Borosilicate type glass allows operation in high temperatures. Operation at an AOI of 0degree is preferred. The most common wavelength range for an average transmission of 85% through the hot mirror is 420 - 700nm. The reflective range for the hot mirror for R>95% is 800 - 1000nm. Additionally, R>50% from 735 - 1080nm. Cold Mirrors are used where the requirements are to reflect visible light and remove the heat by transmission. Operation at an AOI of 45degree is preferred. The most common wavelength range for transmission through the cold mirror is 800 - 1200nm. The average transmission range is T>85%. Additionally, R>95% for 400 - 700nm.
Features of Hot Mirrors . High transmission for the visible range . High reflection for infrared . Removes heat . Uses BorofloatR type glass . Dielectric Coating . AOI's of 0degree or 45degree . Custom mirrors to your configuration	Features of Cold Mirrors . High reflection for the visible range . High transmission for infrared
Typical Specifications - Hot Mirrors Material: Borosilicate type Glass Size: 15mm to 300mm Thickness: 3.3mm Mirror coating: Dielectric multilayer Transmission: Tave>85% for 425 - 700nm Reflection: Rave>90% for750 - 1050nm Surface Finish: 80-50 Flatness: λ/2 @633nm per inch Protective Bevel: 0.3mm x 45degree	Typical Specifications - Cold Mirrors Material: Borosilicate type Glass Size: 15mm to 300mm Thickness: 3.3mm Mirror coating: Dielectric multilayer Transmission: Tave>85% for 750 - 1000nm Reflection: Rave>90% for400 - 700nm Surface Finish: 80-50 Flatness: λ/2 @633nm per inch Protective Bevel: 0.3mm x 45degree

Type	Model	AOI
Cold	MC0-25.4	0
	MC0-50.8	0
	MC45-25.4	45
	MC45-50.8	45
Hot	MH0-25.4	0
	MH0-50.8	0
	MH45-25.4	45
	MH45-50.8	45