Frequently Asked Questions

In imaging systems, large aperture neutrality with constant density can be achieved by configuring two filters of equal design back-to-back. Counter-rotating the two filters allows for a variable setting of the density or transmission requirement in both the rotational and radial directions.

Yes, CVND filters are fully customizable in optical density gradient function, transmission gradient function, substrate type, coating materials, and size to match your application requirements.

CVND filters can be used for attenuation of white light and laser sources, maintaining light intensity consistency and calibration, large aperture attenuation, and as a variable beamsplitter.

A CVND is a filter wheel that can be rotated to linearly attenuate light, and can be used for both white light and lasers.

Sizes are available from 25mm to over 200mm in diameter, and custom sizes and densities are available upon request.

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