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Precision interference filter
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Radial gradient 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

Radial gradient neutral density filter

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Radial gradient neutral density filter

Radialgradientneutraldensityfilter(referredtoasradialgradientdensityfilter)canattenuatethelightintensitywiththechangetrendofGaussianfunction(orotherfunctions).Thistypeoffiltercanbeusedinfieldssuchasnaturallightandlaser,withaspectralrangeof250nm-2500nm.
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Neutral density filter
Radial gradient neutral density filter
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Product Description
Technical Parameter
Application
Radial gradient neutral density filter (referred to as radial gradient density filter) can attenuate the light intensity with the change trend of Gaussian function (or other functions). This type of filter can be used in fields such as natural light and laser, with a spectral range of 250nm-2500nm.
 
 
 
 
 
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We could not find any corresponding parameters, please add them to the properties table

Technical parameter:

 

Substrate

BK7, fused silica

Outer diameter

25mm、50mm

Outer diameter tolerance

+0/-0.15mm

Thickness tolerance

±0.1mm

Parallelism

3’

Standard linearity

±5%

Standard deviation of the deepest point of optical density

±5%

Surface Quality

80-50

Calibration wavelength

550nm

Design wavelength

380nm-2000nm (BK7)

250nm-2500nm  (fused silica)

 

Standard product:

 

Part Number

Outer diameter

Dark zone

Optical density

Substrate

SBDF10-B25

25

Center

1

BK7

SBDF20-B25

25

Center

2

BK7

SBDF30-B25

25

Center

3

BK7

SBDF40-B25

25

Center

4

BK7

SBDF10-B50

50

Center

1

BK7

SBDF20-B50

50

Center

2

BK7

SBDF30-B50

50

Center

3

BK7

SBDF40-B50

50

Center

4

BK7

RBDF10-B25

25

Edge

1

BK7

RBDF20-B25

25

Edge

2

BK7

RBDF30-B25

25

Edge

3

BK7

RBDF40-B25

25

Edge

4

BK7

RBDF10-B50

50

Edge

1

BK7

RBDF20-B50

50

Edge

2

BK7

RBDF30-B50

50

Edge

3

BK7

RBDF40-B50

50

Edge

4

BK7


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 attenuate the light intensity with a specific functional relationship in a wide spectral region.
 
 
 
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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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