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Changchun New Industries Optoelectronics Tech. Co., Ltd

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Tel:     +86-431-87034313

Fax:    +86-431-87033597

Email: cnioptical@cnilaser.com

Neutral density filter

CNI provide two kinds of variable attenuators for different application, The circular variable attenuator can make the optical density linearly varies around a 0°-270° circle for measuring laser energe farthest. As for the square one, the optical density linearly varies across the length for measuring laser energe.


Circular variable attenuator

 

Applications:

Detector of photon

●Electronic image

●Optical instrumentation


Specifications

Material BK7 grade A optical glass, Fused silica
Optical Density Range OD0-OD3
Outside Diameter Φ54mm ±0.25

Dimension

54*42*67 mm
Linearity of Density ±5%@632.8 nm
Coating S1: Ni-Cr-Fe; S2: Boardband AR coating; incidence angle: 0°-15°
Clear aperture >80% diameter
Damage threshold 30W/cm2 CW
Active wavelength 400-1100 nm

 

Note: Dimension, wavelength range, OD or other request are available upon request.


Square variable attenuator

Applications:

Detector of photon

●Electronic image

●Optical instrumentation


Specifications

Material BK7 grade A optical glass, Fused silica
Optical Density Range OD0-OD2
Linearity Density OD±5%

Dimension

76.2*25.4*2.0 mm
Coating S1: Ni-Cr-Fe; S2: Boardband AR coating; incidence angle: 0°-15°
Clear aperture >80% diameter
Damage threshold 30W/cm2 CW
Active wavelength 400-1100 nm

Note: Dimension, wavelength range, OD or other request are available upon request.

 
 
Addr: No.888 Jinhu Road High-tech Zone,Changchun 130103, P.R.China
Email: cnioptical@cnilaser.com   International Tel: +86-431-87034313   Fax:+86-431-87033597   
 
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