Neutral Density Filters
Neutral Density Filters

Neutral Density Filters

VND-25-1.3

1
UV-VIS Neutral density filter (φ12.5mm)
Estimate separately
Classification UV-VIS Neutral density filter (VND)
External form D(mm) φ25
Optical density(OD) 1.3

Product documentation

Description

UV-VIS neutral density (ND) filter is spectrally flat from 200 to 700nm and feature outstanding parallelism and surface characteristics. This combination of high tolerance and broadband performance makes these filters ideal for attenuating a wide range of sources. The filter is suitable for low power laser applications. Orient mirrored side toward source at 0° angle of incidence.

Specifications

Classification UV-VIS Neutral density filter (VND)
External form D(mm) φ25
Externals Tolerance(mm) 0/-0.2
Optical density(OD) 1.3
Density tolerance ±10%(@200-700nm)
Transmission 5.00%
Material Fused silica
Design Wavelength DWL 200-700nm
Frame thickness(mm) 3
Frame thickness tolerance(mm) ±0.10
Clear Aperture(mm) [Dia.] ×0.8
Parallelism <5″
Surface Accuracy 1/4λ
Surface quality 20 - 10
Coating Proprietary ND (@front surface)

Curve(FOR REFERENCE ONLY)

Specification drawings(or pictures)