1）金属镀膜型中性密度滤光片

金属镀膜型中性密度滤光片技术参数描述：

Metallic Neutral Density Transmittance Specifications

Transmission Deviation From Normal

Optical

Nominal

250nm to

350nm to

700nm to

800nm to 

Density (OD)

Transmittance (%)

350nm

700nm

800nm

2000nm

0.1

79.49

± 8%

± 2%

± 2%

± 8%

0.15

70.79

± 7%

± 2%

± 2%

± 7%

0.2

63.1

± 6%

± 2%

± 2%

± 6%

0.3

50.12

± 5%

± 2%

± 2%

± 5%

0.4

39.81

± 4%

± 1.5%

± 1.5%

± 4%

0.5

31.62

± 4%

± 1.5%

± 1.5%

± 4%

0.6

25.12

± 4%

± 1.5%

± 1.5%

± 4%

0.7

19.95

± 4%

± 1.5%

± 1.5%

± 4%

0.8

15.85

± 4%

± 1.5%

± 1.5%

± 4%

0.9

12.59

± 3.5%

± 1.0%

± 1.0%

± 3.5%

1

10

± 3.5%

± 1.0%

± 1.0%

± 3.5%

1.3

5.01

± 3.0%

± 1.0%

± 1.0%

± 3.0%

1.5

3.16

± 1.5%

± 0.5%

± 0.5%

± 1.5%

金属镀膜型中性密度滤光片选型表：

UV-VIS-NIR ND filters （UV-VIS-ND中性密度滤光片，熔融石英，250-2000nm）

Optical

Nominal

12.5mmØ

25mmØ

50mmØ

50mm x 50mm

Density

Transmittance (%)

O.D.

0.1

79.43

010FN46-12.5

010FN46-25

010FN46-50

010FN46-50S

0.15

70.79

015FN46-12.5

015FN46-25

015FN46-50

015FN46-50S

0.2

63.1

020FN46-12.5

020FN46-25

020FN46-50

020FN46-50S

0.3

50.12

030FN46-12.5

030FN46-25

030FN46-50

030FN46-50S

0.4

39.81

040FN46-12.5

040FN46-25

040FN46-50

040FN46-50S

0.5

31.62

050FN46-12.5

050FN46-25

050FN46-50

050FN46-50S

0.6

25.12

060FN46-12.5

060FN46-25

060FN46-50

060FN46-50S

0.7

19.95

070FN46-12.5

070FN46-25

070FN46-50

070FN46-50S

0.8

15.85

080FN46-12.5

080FN46-25

080FN46-50

080FN46-50S

0.9

12.59

090FN46-12.5

090FN46-25

090FN46-50

090FN46-50S

1

10

100FN46-12.5

100FN46-25

100FN46-50

100FN46-50S

1.3

5.01

130FN46-12.5

130FN46-25

130FN46-50

130FN46-50S

1.5

3.16

150FN46-12.5

150FN46-25

150FN46-50

150FN46-50S

2

1

200FN46-12.5

200FN46-25

200FN46-50

200FN46-50S

2.5

0.32

250FN46-12.5

250FN46-25

250FN46-50

250FN46-50S

3

0.1

300FN46-12.5

300FN46-25

300FN46-50

300FN46-50S

4

0.01

400FN46-12.5

400FN46-25

400FN46-50

400FN46-50S

VIS-NIR ND filters （VIS-NIR中性密度滤光片，玻璃基底，350-2000nm）

Optical

Nominal

12.5mmØ

25mmØ

50mmØ

50mm x 50mm

Density

Transmission (%)

O.D.

0.1

79.43

010FN52-12.5

010FN52-25

010FN52-50

010FN52-50S

0.15

70.79

015FN52-12.5

015FN52-25

015FN52-50

015FN52-50S

0.2

63.1

020FN52-12.5

020FN52-25

020FN52-50

020FN52-50S

0.3

50.12

030FN52-12.5

030FN52-25

030FN52-50

030FN52-50S

0.4

39.81

040FN52-12.5

040FN52-25

040FN52-50

040FN52-50S

0.5

31.62

050FN52-12.5

050FN52-25

050FN52-50

050FN52-50S

0.6

25.12

060FN52-12.5

060FN52-25

060FN52-50

060FN52-50S

0.7

19.95

070FN52-12.5

070FN52-25

070FN52-50

070FN52-50S

0.8

15.85

080FN52-12.5

080FN52-25

080FN52-50

080FN52-50S

0.9

12.59

090FN52-12.5

090FN52-25

090FN52-50

090FN52-50S

1

10

100FN52-12.5

100FN52-25

100FN52-50

100FN52-50S

1.3

5.01

130FN52-12.5

130FN52-25

130FN52-50

130FN52-50S

1.5

3.16

150FN52-12.5

150FN52-25

150FN52-50

150FN52-50S

2

1

200FN52-12.5

200FN52-25

200FN52-50

200FN52-50S

2.5

0.32

250FN52-12.5

250FN52-25

250FN52-50

250FN52-50S

3

0.1

300FN52-12.5

300FN52-25

300FN52-50

300FN52-50S

4

0.01

400FN52-12.5

400FN52-25

400FN52-50

400FN52-50S

2）吸收型中性密度滤光片
吸收性中性密度滤光片参数：

General Specifications

Thickness:

4.0mm (maximum)

Dimensional

±0.5mm

Tolerances:

Clear Aperture:

90% of diameter

Surface Quality:

60/40 Per

MIL-0-13830B

Max. operating

+100°C

temperature:

Substrate

Schott®

Material:

absorption glass

Optical Quality:

Flatness of 3 to 5 waves

per inch and parallelism

of 3 arc minutes or better

Anti-Reflection

< or = .5% avg.

Coatings

per surface from 

400nm to 700nm

Mechanical:

Not mounted

in metal holder