Substrate material
UVFS, BK7
Dimensions
Ø25 – 100 mm
Surface quality, S-D
60-40
Surface flatness, P-V
<λ @ 632.8 nm*
Operating wavelength range
250 – 2500 nm
*depending on size
Circular variable neutral-density (CVND) filters provide continuously variable, linear attenuation of light by rotating the filter around its center. The filter can be used for white light and for lasers, or with any other source of light for which signal attenuation is required. The transmitted intensity varies as a function of the optical density.
Such filters present a cost-effective way to attenuate beam intensity for low-power laser applications. One of the main advantages of such attenuation is that an ND filter is suitable for different wavelengths. We recommend this product for R&D institutions that work with different wavelength beams or OPA and OPO.
CVND filters can be ordered together with a handy holder that has degree indications on the side. For a high level of precision in tasks with high energy attenuation, we recommend our industrial-grade products Watt Pilot and PXP in our attenuation product line.
| Wavelength range, nm | Optical density range | Average transmission in VIS | Substrate material | Product ID (Ø25 mm) | Product ID (Ø50 mm) | Product ID (Ø100 mm) |
|---|---|---|---|---|---|---|
| 250-2500 | 0.04 to 2.0 | 90% to 1% | UVFS | 1-CNFH-2-B025 | 1-CNFH-2-B050 | 1-CNFH-2-B100 |
| 250-2500 | 0.04 to 3.0 | 90% to 0.1% | UVFS | 1-CNFH-3-B025 | 1-CNFH-3-B050 | 1-CNFH-3-B100 |
| 380-2000 | 0.04 to 2.0 | 90% to 1% | BK7 | 1-CNFH-2-A025 | 1-CNFH-2-A050 | 1-CNFH-2-A100 |
| 380-2000 | 0.04 to 3.0 | 90% to 0.1% | BK7 | 1-CNFH-3-A025 | 1-CNFH-3-A050 | 1-CNFH-3-A100 |
Thank You for filling out your personal information. For easier communication between you and us, it would be better if you could also fill the product specifications.
Go back to the homepage