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Circular stepped neutral density filter

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ADD：No.242 Beihai Street, Dadong District, Shenyang City, Liaoning Province

TLL：024-88722463（Filter）

  024-88710226（Reflector） 

  024-88710538（International）          

FAX：024-88722312（Filter）

      024-88710655（Reflector）

EMAIL：info@hb-optical.com

Circular stepped neutral density filter

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Circular stepped neutral density filter

Circular stepped neutral density filter (referred to as circular stepped density filter) can attenuate the light intensity in discrete steps in the filter area, and the optical density in each discrete area is a fixed value. This type of filter can be used in natural light and laser fields. The outer diameter of the filter can be selected from 25mm to 100mm. Optional use of spectral range 250nm-2500nm. Density sheets with special size, density and wavelength can be customized.
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Neutral density filter
Circular stepped neutral density filter
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Product Description
Technical Parameter
Application
Circular stepped neutral density filter (referred to as circular stepped density filter) can attenuate the light intensity in discrete steps in the filter area, and the optical density in each discrete area is a fixed value. This type of filter can be used in natural light and laser fields. The outer diameter of the filter can be selected from 25mm to 100mm. Optional use of spectral range 250nm-2500nm. Density sheets with special size, density and wavelength can be customized.
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Detailed specifications:

 

Substrate

BK7, fused silica

Outer diameter

25mm-150mm

The inside diameter of

7.5mm、8.0mm、8.3mm

Outer diameter tolerance

+0/-0.15mm

Inner diameter tolerance

+0.15/-0mm

Thickness tolerance

±0.1mm

Parallelism

3’

Surface Quality

80-50

Standard deviation of optical density

±5%

Calibration wavelength

550nm

Design wavelength

380nm-2000nm (BK7)

250nm-2500nm (fused silica)

 

Optical density type:

 

A

0.04

0.1

0.2

0.3

0.4

0.5

 

 

 

 

 

B

0.04

0.2

0.4

0.6

0.8

1.0

 

 

 

 

 

C

0.04

0.4

0.8

1.2

1.6

2.0

 

 

 

 

 

D

0.04

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1.0

E

0.04

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

1.8

2.0

F

0.04

0.3

0.6

0.9

1.2

1.5

1.8

2.1

2.4

2.7

3.0

 

Standard product:

 

Part Number

Outer diameter

The inside diameter of

Optical density

Substrate

CSNDE-B60C

60

8.3

E

B270

 

Other parameters such as size, optical density and wavelength can be customized according to customer needs. You are welcome to contact us.

 

 

 

It is mainly used in the field that needs to gradually attenuate the light intensity in discrete steps (circular direction) in a wide spectral region.
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Striped step neutral density filter

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ADD: No. 242 Beihai Street, Dadong District, Shenyang City, Liaoning Province

FAX：024-88722463（Filter） 024-88710226（Reflector） 024-88710538（International）

EMAIL：info@hb-optical.com

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