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Andover吸收中性密度滤光片UV-VIS-NIR
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由于具有*小化背反射和散射光的能力，吸收中性密度（ND）滤光片是校准的理想选择。与金属类型相反，吸收型滤光器通过吸收基板内的光来实现其光密度。因此，厚度是不透明度的关键决定因素。由于其吸收质量，这些滤波器仅适用于低功率应用。

Andover吸收式ND滤光片的独特之处在于它们采用增透膜涂层以减少表面反射。这使得它们能够堆叠而不用担心由于多次反射造成的损失和伪影。

请注意，我们所有的Absorbing ND滤镜都是成套的，包括硬木储物盒。

GENERAL SPECIFICATIONS

Thickness:

5.0mm (maximum)

Dimensional Tolerance:

+0.0/-0.25mm

Clear Aperture:

90% of outside dimension

Surface Quality:

80/50 per MIL-0-13830B

Max. Operating Temperature:

+100°C

Substrate Material:

Schott absorption glass

Spectral Range:

400–700nm

Optical Quality:

Flatness of λ/4 per inch and parallelism of 30 arc seconds or better

Mechanical:

Unmounted

0.1 OD， 79.43% transmission， 25.0 mm Unmounted， Absorptive Neutral Density Filter

PART NO.

010ABND-25

%T (Optical Density)

79.43 (0.1 OD)

Specifications

±10% of the Optical Density @ 550nm

Substrate Material

Absorbing Filter Glass

Size

25.0 mm diameter

Thickness

4.95 +nom/-nom mm

0.1 OD， 79.43% transmission， 50.0 x 50.0mm Unmounted， Absorptive Neutral Density Filter

PART NO.

010ABND-50S

%T (Optical Density)

79.43 (0.1 OD)

Specifications

±10% of the Optical Density @ 550nm

Substrate Material

Absorbing Filter Glass

Size

50.0 x 50.0 mm square

Thickness

4.95 +nom/-nom mm

0.2 OD， 63.10% transmission， 25.0 mm Unmounted， Absorptive Neutral Density Filter

PART NO.

020ABND-25

%T (Optical Density)

63.10 (0.2 OD)

Specifications

±10% of the Optical Density @ 550nm

Substrate Material

Absorbing Filter Glass

Size

25.0 mm diameter

Thickness

1.52 +nom/-nom mm

0.2 OD， 63.10% transmission， 50.0 x 50.0mm Unmounted， Absorptive Neutral Density Filter

PART NO.

020ABND-50S

%T (Optical Density)

63.10 (0.2 OD)

Specifications

±10% of the Optical Density @ 550nm

Substrate Material

Absorbing Filter Glass

Size

50.0 x 50.0 mm square

Thickness

1.52 +nom/-nom mm

0.3 OD， 50.12% transmission， 25.0 mm Unmounted， Absorptive Neutral Density Filter

PART NO.

030ABND-25

%T (Optical Density)

50.12 (0.3 OD)

Specifications

±10% of the Optical Density @ 550nm

Substrate Material

Absorbing Filter Glass

Size

25.0 mm diameter

Thickness

2.84 +nom/-nom mm

0.3 OD， 50.12% transmission， 50.0 x 50.0mm Unmounted， Absorptive Neutral Density Filter

PART NO.

030ABND-50S

%T (Optical Density)

50.12 (0.3 OD)

Specifications

±10% of the Optical Density @ 550nm

Substrate Material

Absorbing Filter Glass

Size

50.0 x 50.0 mm square

Thickness

2.84 +nom/-nom mm

0.4 OD， 39.81% transmission， 25.0 mm Unmounted， Absorptive Neutral Density Filter

PART NO.

040ABND-25

%T (Optical Density)

39.81 (0.4 OD)

Specifications

±10% of the Optical Density @ 550nm

Substrate Material

Absorbing Filter Glass

Size

25.0 mm diameter

Thickness

3.78 +nom/-nom mm

0.4 OD， 39.81% transmission， 50.0 x 50.0mm Unmounted， Absorptive Neutral Density Filter

PART NO.

040ABND-50S

%T (Optical Density)

39.81 (0.4 OD)

Specifications

±10% of the Optical Density @ 550nm

Substrate Material

Absorbing Filter Glass

Size

50.0 x 50.0 mm square

Thickness

3.78 +nom/-nom mm

0.5 OD， 31.62% transmission， 25.0 mm Unmounted， Absorptive Neutral Density Filter

PART NO.

050ABND-25

%T (Optical Density)

31.62 (0.5 OD)

Specifications

±10% of the Optical Density @ 550nm

Substrate Material

Absorbing Filter Glass

Size

25.0 mm diameter

Thickness

2.11 +nom/-nom mm

0.5 OD， 31.62% transmission， 50.0 x 50.0mm Unmounted， Absorptive Neutral Density Filter

PART NO.

050ABND-50S

%T (Optical Density)

31.62 (0.5 OD)

Specifications

±10% of the Optical Density @ 550nm

Substrate Material

Absorbing Filter Glass

Size

50.0 x 50.0 mm square

Thickness

2.11 +nom/-nom mm

0.6 OD， 25.12% transmission， 25.0 mm Unmounted， Absorptive Neutral Density Filter

PART NO.

060ABND-25

%T (Optical Density)

25.12 (0.6 OD)

Specifications

±10% of the Optical Density @ 550nm

Substrate Material

Absorbing Filter Glass

Size

25.0 mm diameter

Thickness

2.54 +nom/-nom mm

0.6 OD， 25.12% transmission， 50.0 x 50.0mm Unmounted， Absorptive Neutral Density Filter

PART NO.

060ABND-50S

%T (Optical Density)

25.12 (0.6 OD)

Specifications

±10% of the Optical Density @ 550nm

Substrate Material

Absorbing Filter Glass

Size

50.0 x 50.0 mm square

Thickness

2.54 +nom/-nom mm

0.7 OD， 19.95% transmission， 25.0 mm Unmounted， Absorptive Neutral Density Filter

PART NO.

070ABND-25

%T (Optical Density)

19.95 (0.7 OD)

Specifications

±10% of the Optical Density @ 550nm

Substrate Material

Absorbing Filter Glass

Size

25.0 mm diameter

Thickness

2.95 +nom/-nom mm

0.7 OD， 19.95% transmission， 50.0 x 50.0mm Unmounted， Absorptive Neutral Density Filter

PART NO.

070ABND-50S

%T (Optical Density)

19.95 (0.7 OD)

Specifications

±10% of the Optical Density @ 550nm

Substrate Material

Absorbing Filter Glass

Size

50.0 x 50.0 mm square

Thickness

2.95 +nom/-nom mm

0.8 OD， 15.85% transmission， 25.0 mm Unmounted， Absorptive Neutral Density Filter

PART NO.

080ABND-25

%T (Optical Density)

15.85 (0.8 OD)

Specifications

±10% of the Optical Density @ 550nm

Substrate Material

Absorbing Filter Glass

Size

25.0 mm diameter

Thickness

3.38 +nom/-nom mm

0.8 OD， 15.85% transmission， 50.0 x 50.0mm Unmounted， Absorptive Neutral Density Filter

PART NO.

080ABND-50S

%T (Optical Density)

15.85 (0.8 OD)

Specifications

±10% of the Optical Density @ 550nm

Substrate Material

Absorbing Filter Glass

Size

50.0 x 50.0 mm square

Thickness

3.38 +nom/-nom mm

0.9 OD， 12.59% transmission， 25.0 mm Unmounted， Absorptive Neutral Density Filter

PART NO.

090ABND-25

%T (Optical Density)

12.59 (0.9 OD)

Specifications

±10% of the Optical Density @ 550nm

Substrate Material

Absorbing Filter Glass

Size

25.0 mm diameter

Thickness

1.75 +nom/-nom mm

0.9 OD， 12.59% transmission， 50.0 x 50.0mm Unmounted， Absorptive Neutral Density Filter

PART NO.

090ABND-50S

%T (Optical Density)

12.59 (0.9 OD)

Specifications

±10% of the Optical Density @ 550nm

Substrate Material

Absorbing Filter Glass

Size

50.0 x 50.0 mm square

Thickness

1.75 +nom/-nom mm

1.0 OD， 10.00% transmission， 25.0 mm Unmounted， Absorptive Neutral Density Filter

PART NO.

100ABND-25

%T (Optical Density)

10.00 (1.0 OD)

Specifications

±10% of the Optical Density @ 550nm

Substrate Material

Absorbing Filter Glass

Size

25.0 mm diameter

Thickness

1.96 +nom/-nom mm

1.0 OD， 10.00% transmission， 50.0 x 50.0mm Unmounted， Absorptive Neutral Density Filter

PART NO.

100ABND-50S

%T (Optical Density)

10.00 (1.0 OD)

Specifications

±10% of the Optical Density @ 550nm

Substrate Material

Absorbing Filter Glass

Size

50.0 x 50.0 mm square

Thickness

1.96 +nom/-nom mm

1.5 OD， 3.16% transmission， 25.0 mm Unmounted， Absorptive Neutral Density Filter

PART NO.

150ABND-25

%T (Optical Density)

3.16 (1.5 OD)

Specifications

±10% of the Optical Density @ 550nm

Substrate Material

Absorbing Filter Glass

Size

25.0 mm diameter

Thickness

2.90 +nom/-nom mm

1.5 OD， 3.16% transmission， 50.0 x 50.0mm Unmounted， Absorptive Neutral Density Filter

PART NO.

150ABND-50S

%T (Optical Density)

3.16 (1.5 OD)

Specifications

±10% of the Optical Density @ 550nm

Substrate Material

Absorbing Filter Glass

Size

50.0 x 50.0 mm square

Thickness

2.90 +nom/-nom mm

2.0 OD， 1.00% transmission， 25.0 mm Unmounted， Absorptive Neutral Density Filter

PART NO.

200ABND-25

%T (Optical Density)

1.00 (2.0 OD)

Specifications

±10% of the Optical Density @ 550nm

Substrate Material

Absorbing Filter Glass

Size

25.0 mm diameter

Thickness

2.06 +nom/-nom mm

2.0 OD， 1.00% transmission， 50.0 x 50.0mm Unmounted， Absorptive Neutral Density Filter

PART NO.

200ABND-50S

%T (Optical Density)

1.00 (2.0 OD)

Specifications

±10% of the Optical Density @ 550nm

Substrate Material

Absorbing Filter Glass

Size

50.0 x 50.0 mm square

Thickness

2.06 +nom/-nom mm

3.0 OD， 0.10% transmission， 25.0 mm Unmounted， Absorptive Neutral Density Filter

PART NO.

300ABND-25

%T (Optical Density)

0.10 (3.0 OD)

Specifications

±10% of the Optical Density @ 550nm

Substrate Material

Absorbing Filter Glass

Size

25.0 mm diameter

Thickness

2.92 +nom/-nom mm

3.0 OD， 0.10% transmission， 50.0 x 50.0mm Unmounted， Absorptive Neutral Density Filter

PART NO.

300ABND-50S

%T (Optical Density)

0.10 (3.0 OD)

Specifications

±10% of the Optical Density @ 550nm

Substrate Material

Absorbing Filter Glass

Size

50.0 x 50.0 mm square

Thickness

2.92 +nom/-nom mm

4.0 OD， 0.01% transmission， 25.0 mm Unmounted， Absorptive Neutral Density Filter

PART NO.

400ABND-25

%T (Optical Density)

0.01 (4.0 OD)

Specifications

±10% of the Optical Density @ 550nm

Substrate Material

Absorbing Filter Glass

Size

25.0 mm diameter

Thickness

2.82mm +nom/-nom mm

4.0 OD， 0.01% transmission， 50.0 x 50.0mm Unmounted， Absorptive Neutral Density Filter

PART NO.

400ABND-50S

%T (Optical Density)

0.01 (4.0 OD)

Specifications

±10% of the Optical Density @ 550nm

Substrate Material

Absorbing Filter Glass

Size

50.0 x 50.0 mm square

Thickness

2.82 +nom/-nom mm

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