← Back to product family
Neutral Density Absorption Type Filters at 450-650 nm SKU: 240-2507
Eksma Optics neutral density (ND) filters attenuate VIS spectral region. The optical density varies from 0.1 to 3.0, 1 or 2 inches size square and roud shapes are available. Neutral density absorption type filters decrease the intensity of light without altering the relative…
Variant specifications
| Specification | Value |
|---|---|
| Material | neutral density color glass |
| Size | ø25.4 mm |
| Optical Density | 0.7 |
| Internal Transmittance | 20% @ 546 nm |
| Group | Round, ø25.4 mm |
Shared product specifications
These specifications apply across the Neutral Density Absorption Type Filters at 450-650 nm product family.
| Material | neutral density color glass |
| Surface quality | 60-40 scratch & dig (MIL-PRF-13830B) |
| Surface flatness | 1 λ per inch @ 633 nm |
| Parallelism | 3 arcmin |
| Diameter tolerance | +0.0 / -0.2 mm |
| Clear aperture | 90% of diameter |
| Design wavelength | 450-650 nm |
| Optical density tolerance | + / - 5% of density |
Variant files
Technical drawings, models and data files for SKU 240-2507.
Product brochures
Shared documentation for the complete product family.