Cold Mirror

PRODUCT CATEGORIES

INOUIRY

High-performance cold mirrors, light sources or optical signals often contain visible light and infrared light. Cold reflectors can separate visible light from infrared light, collect only visible light, and alleviate system temperature rise caused by infrared radiation.

Cold reflector is made of high-quality heat-resistant borosilicate glass material. The surface is coated with high-quality multi-layer dielectric film. The spectral characteristics of cold reflector are high reflectivity in visible light band and high transmittance in near-infrared light band.

Technical parameters with cold mirror

Material	Schott borosilicate glass
Surface accuracy	<5 wavelengths/25mm² @633nm
Parallelism	<1′
Surface quality	60/40
Dimension error	+0.0/-0.25 mm
Incident angle	0°
Thickness	2 mm±0.2 mm
Square (rectangular) substrate tolerance	±0.25 mm
Visible reflectivity	Ravg>95%@425~675 nm
Infrared transmittance	Tavg>90%@750~1150 nm

spectral curve with cold reflectors mirror

Inventory Parameters With Cold Mirror Lens

Diameter (mm)	Thickness (mm)	Visible light reflectivity (%)	Near infrared transmittance (%)
12.5; 12.5*12.5	2	Ravg＞90%@425-675nm	Tavg＞95%@750-1150nm
25; 25*25	2	Ravg＞90%@425-675nm	Tavg＞95%@750-1150nm
35*35	2	Ravg＞90%@425-675nm	Tavg＞95%@750-1150nm
50; 50*50	2	Ravg＞90%@425-675nm	Tavg＞95%@750-1150nm
80*80	2	Ravg＞90%@425-675nm	Tavg＞95%@750-1150nm
110*120	2	Ravg＞90%@425-675nm	Tavg＞95%@750-1150nm