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描述
RFQ

Reflective ND Filter

Product Info

This is the type of ND filter to reduce the transmittance by reflecting the incident light. 


These filters have constant density values across the surface. The transmission to reflection ratio varies with density selection. In stacks, the total density is the sum of each filter’s density. ND filters are used primarily for the attenuation of light over a wide spectral range. They are often used in laser and photometer applications, where excessive power can cause damage or inaccurate results. Orient mirrored side toward source at 0° angle of incidence. 



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Specifications

 

Material:

Float glass

Wavelength range:

400-700nm

Dimension:

+/-0.20mm

Clear aperture:

>80% of dimension

Parallelism:

< 3 arc minutes

Surface quality:

80-50 scratch and dig

Flatness:

2-4 λ subject to the size

OD tolerance:

+/-5%

Coating:

1st surface metal coating (inconel)


This is the type of ND filter to reduce the transmittance by reflecting the incident light. 


These filters have constant density values across the surface. The transmission to reflection ratio varies with density selection. In stacks, the total density is the sum of each filter’s density. ND filters are used primarily for the attenuation of light over a wide spectral range. They are often used in laser and photometer applications, where excessive power can cause damage or inaccurate results. Orient mirrored side toward source at 0° angle of incidence. 



p><p><span style=

Specifications

 

Material:

Float glass

Wavelength range:

400-700nm

Dimension:

+/-0.20mm

Clear aperture:

>80% of dimension

Parallelism:

< 3 arc minutes

Surface quality:

80-50 scratch and dig

Flatness:

2-4 λ subject to the size

OD tolerance:

+/-5%

Coating:

1st surface metal coating (inconel)