NVIS FRIENDLY - HEAT ABSORBING GLASSES



Filter

Nominal Thickness
(mm)

Thickness
Variation
(mm)

Thermal Expansion
( * E-7 °C-1)

Internal Transmittance (nm)

3961

2.5

+/- 0.35

48

Transmission for Total Radiation (CIE Illuminant A) 1.6 ± 0.5% Minimum Value for Luminous Transmittance ( CIE Illuminant A) 18.6 %

3962

2.5

+/- 0.35

48

Transmission for Total Radiation (CIE Illuminant A) 7.0 ± 0.7% Minimum Value for Luminous Transmittance ( CIE Illuminant A) 47.9 %

3965

2.5

+/- 0.35

48

Transmission for Total Radiation (CIE Illuminant A) 17.0 ± 1.0% Minimum Value for Luminous Transmittance ( CIE Illuminant A) 64.8 %

3966

2.5

+/- 0.35

48

Transmission for Total Radiation (CIE Illuminant A) 32.0 ± 2.0% Minimum Value for Luminous Transmittance ( CIE Illuminant A) 75 %

7050

5.2

+/- 0.50

61

> 0.65 (400)

> 0.735 (500)

> 0.52 (600)

< 0.285 (700)

< 0.10 (800)

< 0.035 (900)

7060

3

 

63

> 0.52 (400)

> 0.65 (500)

> 0.435 (600)

< 0.165 (700)

< 0.035 (800)

< 0.0125 (900)

7062

4.5

+/- 0.50

66

> 0.70 (400)

> 0.75 (500)

> 0.60 (600)

< 0.325 (700)

< 0.115 (800)

< 0.055 (900)

7064

5.2

+/- 0.50

66

> 0.75 (400)

> 0.845 (500)

> 0.625 (600)

< 0.325 (700)

< 0.11 (800)

< 0.055 (900)

7071

1

 

103

Maximum (490 ± 10)

0.525 ± 0.02 (600)

< 0.025 (700)

7093

2

 

57

> 0.90 (365)

> 0.90 (500)

> 0.85 (600)

< 0.535 (700)

< 0.155 (800)

< 0.025 (900)

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