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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

Striped gradient neutral density filter

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Striped gradient neutral density filter

Strip gradient neutral density filter (referred to as strip gradient density filter) can linearly attenuate the light intensity by moving the filter or light source. To achieve precise adjustment of light energy in the length direction of the strip, and to maintain adjustable and controllable light energy on the premise of maintaining the neutral spectrum light energy distribution, it is divided into metal alloy type variable density sheets and low inversion type variable density sheets ( GND). It is suitable for both ordinary light sources and laser light sources. When the two plates are used in combination with reverse translation, the attenuation of the light of a larger beam spot can be achieved. Optional use of spectral range 250nm-2500nm. Density sheets with special size, density and wavelength can be customized.
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Strip gradient neutral density filter (referred to as strip gradient density filter) can linearly attenuate the light intensity by moving the filter or light source. To achieve precise adjustment of light energy in the length direction of the strip, and to maintain adjustable and controllable light energy on the premise of maintaining the neutral spectrum light energy distribution, it is divided into metal alloy type variable density sheets and low inversion type variable density sheets ( GND). It is suitable for both ordinary light sources and laser light sources. When the two plates are used in combination with reverse translation, the attenuation of the light of a larger beam spot can be achieved. 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

Thickness tolerance

±0.1mm

Parallelism

3’

Surface Quality

80-50

Standard linearity

±5%

Standard deviation of the deepest point of optical density

±5%

Calibration wavelength

550nm

Design wavelength

380nm-2000nm (BK7)

250nm-2500nm  (fused silica)

Size range

6—170mm

 

Standard product:
 

Part Number

Length

Width

Optical density

Substrate

LVND10-B76

76.2

25.4

1

BK7

LVND20-B76

76.2

25.4

2

BK7

LVND30-B76

76.2

25.4

3

BK7

LVND40-B76

76.2

25.4

4

BK7

LVND10-B50

50.8

25.4

1

BK7

LVND20-B50

50.8

25.4

2

BK7

LVND30-B50

50.8

25.4

3

BK7

LVND40-B50

50.8

25.4

4

BK7

 

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

 

 

 

Mainly used in the field that needs to continuously attenuate the light intensity in a linear relationship (direction of a straight line) in a wide spectral region.