产品展示

吸收型滤光片

Absorptive ND filters are one of simple light attenuators to be used to control the amount of light, They possess level spectral transmittance characteristics in the visible region and attenuate light by absorption with minimal reflection. they do not affect the colors of the light Since the filters have low dependency on wavelengths and optically neutral. Absorptive ND filters are useful in light control applications for measuring instruments and exposure control in imaging.
 

Specifications

Item                        
 Commercial
 High Precision
Material: 
Color glass from schott or equivalent
Dimension X×Y(φ):  
1×1mm~25.4×25.4mm;φ3~φ25.4mm
Dimension tolerance:
±0.1mm
  ±0.03mm
Parallelism:
<3′
<30″
Clear aperture:
85%
Surface quality:
MIL20-10
Flatness(per 25.4mm):
 λ/4@ 632.8nm
 λ/8@ 632.8nm
Optical density tolerance:
Typical ±5%
Coating:
Specified by customer  

 

爆草尤物.com