Circular Variable Neutral Density Filter VIS
Description
The Circular Variable Neutral Density optical filters (VIS) are a filter wheels to linearly attenuate light as the filter is rotated. The CVND (VIS) can be used for white light as well as for lasers. A large finite aperture can be attenuated by counter rotating to filters in series. Sizes are available from 25mm to over 200mm in diameter.
Custom sizes and densities are available upon request.
ISO 9001:2015 certified and ITAR registered
Circular Variable Neutral Density Filter VIS
Specifications |
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|---|---|
| Attenuator Type: | Absorptive |
| Shape: | Round, Custom |
| Size: | 25 - 200 mm |
| Optical Density: | 0 to 1, 2, 3, 4 or 5 |
| Type Of Attenuator: | Filter Wheel |
| Substrate Material: | BK-7 |
| Outside Diameter: | 25mm - 200mm ± 0.2mm |
| Inside Diameter: | 7.5mm - 25.4mm ± 0.2mm |
| Thickness: | 2.0mm ± 0.2mm |
| OD Tolerance: | ± 5% Absolute |
| Optical Density Range: | Specify: 0 to 1, 2, 3, 4 or 5 |
| Wavelength Range: | 375 - 2500nm |
| Wavelength Calibration: | 510nm |
| Gradient Range: | 270° Typical |
| Parallelism: | < 3 Arc Minutes |
| TWE: | < 2 Waves per 25mm |
| Centration: | ± 0.2mm |
| Surface Quality: | 80/50 Scratch & Dig |
| Clear Aperture: | 80% of Diameter |
Features
- Better Performance
- Custom Wavelengths
- Density Range Options
- Various Substrate Materials
- Wide Aperture
- Dimensions
Applications
- Attenuation of white light and laser sources
- Maintain light intensity consistency and calibration
- Large aperture attenuation
- Can be used as a variable beamsplitter
For pricing, technical or any other questions please contact the supplier
- No registration required
- No markups, no fees
- Direct contact with supplier
Contact Supplier
How to order?
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Ships from:
United States
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Sold by:
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On FindLight:
since 2015
Frequently Asked Questions
CVND filters can be used for attenuation of white light and laser sources, maintaining light intensity consistency and calibration, large aperture attenuation, and can be used as a variable beamsplitter.
CVND filters can be made on a variety of substrates including N-BK-7, Fused Silica, Ge and ZnSe, among several others.
A Circular Variable Neutral Density Filter is a filter wheel that attenuates light as the filter is rotated.
Yes, custom sizes and densities are available upon request.
Sizes are available from 25mm to over 200mm in diameter. Custom sizes as well.