Linear Variable Neutral Density Filter

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Linear variable neutral density filter is used to attenuate light as the filter is shifted. The filter can be used for white light as well as for lasers. A large finite aperture can be attenuated by translating two filters in opposite directions..


● Material:K9/B270
● Parallelism:3 ´
● standard linearity:±5%
● standard deviation of density end point:±5%
● surface quality:80-50
● coated area:More than 80% clear aperture
● design wavelength:380-2000nm(B270)/ 250-2500nm(fused silica)
● calibrated wavelength:550nm

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