Reflective ND Filters (UV-NIR), Optical Density: 0.3

Name: Reflective ND Filters (UV-NIR), Optical Density: 0.3
SKU: FNDF-0003

Cat No:FNDF-0003

Description

A Neutral Density (ND) Filter is an optical filter designed to reduce light intensity evenly across a broad wavelength range without significantly altering the spectral distribution or color balance of the transmitted light. By attenuating optical power in a controlled manner, ND filters help protect sensitive detectors, prevent signal saturation, and enable accurate optical measurements in high-intensity light environments.

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Basic Information

Feature	Uniform attenuation across a wide spectral range Available optical density (OD) values to meet different attenuation requirements Minimal spectral distortion for accurate measurements High optical quality with low scattering and absorption Suitable for continuous-wave and pulsed laser applications Customizable options for OD value, wavelength range, substrate material, and size
Optical Density	0.3
Transmission T (%)	50%
Design Wavelength	300 nm
Diameter (mm)	12.50; 25.00; 50.00
Material	UV Fused silica
TWE	λ/4@633 nm
Parallelism	<30″
Surface Quality	40/20
Dia. Tolerance (mm)	+0.0/-0.1
Thickness (mm)	2±0.2
Working Wavelength Range	200~1200 nm
OD Tolerance	±5% @300 nm
Clear Aperture	>90%
RoHS	Compliant
Optical Density (OD)	OD= -log(T/100) T=transmission

Applications

Application

Optical measurement and calibration systems Laser power attenuation and beam control Imaging systems, cameras, and machine vision Spectroscopy and photonics experiments Scientific research and industrial optical setups

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