- Products
- Optics
- Optical Filters
- Longpass Filters
- Heat-Transmitting Cold Mirrors
Specifications
- TypeCold Mirror
- Transmittance Range780-2500 nm
- TransmissionTavg≥85% 780-1250 nm; Tavg≥80% 850-2500 nm
- Reflectance Band400-700 nm
- ReflectanceRavg≥95%
- Angle of Incidence45° ±5°
- MaterialBorofloat® borosilicate float glass
- Surface Quality80-50 scratch-dig
- Surface Flatness6–8λ per 25.4 mm at 546.1 nm over the clear aperture
- Thickness3.3 mm
- Thickness Tolerance±0.2 mm
- Size Tolerance±0.4 mm
- Clear Aperture≥central 90% of dimensions
- Temperature Range-100 to 500°C
- TypeCold Mirror
- Transmittance Range780-2500 nm
- TransmissionTavg≥85% 780-1250 nm; Tavg≥80% 850-2500 nm
- Reflectance Band400-700 nm
- ReflectanceRavg≥95%
- Angle of Incidence45° ±5°
- MaterialBorofloat® borosilicate float glass
- Surface Quality80-50 scratch-dig
- Surface Flatness6–8λ per 25.4 mm at 546.1 nm over the clear aperture
- Thickness3.3 mm
- Thickness Tolerance±0.2 mm
- Size Tolerance±0.4 mm
- Clear Aperture≥central 90% of dimensions
- Temperature Range-100 to 500°C

