NANO PRO™ Rectangular Metallic Linearly Variable Neutral Density Filters, 3"x1"
NANOSSR offers 3"x1" Rectangular Metallic Linearly Variable Neutral Density Filters. This product is a reflective filter. One side of the filter is coated with Ni-Cr-Fe metal film, and the other side is coated with a broadband anti-reflection film in the visible light region. The transmitted light density is linearly attenuated by absorption and reflection in the visible light region to the near-infrared light region. The light density changes linearly in the direction of the extended edge. Neutral density filters block optical energy through optical density (OD). The higher the optical density (OD), the lower the transmittance. Conversely, the lower the optical density (OD), the higher the transmittance. Due to the absorption characteristics of the metal film, this filter is not suitable for high-intensity laser applications.
NANOSSR can offer a variety of optical components. Please contact us for customization or bulk orders.
Technical Data:
| Material | BK7 fine annealed |
| Dimension Tolerance |
+0.0/-0.2
|
| Clear Aperture | 90% of length and 80% of width |
| Optical Density(OD) | 0.8-2.0±5%@632.8nm |
| Linearity of Optical Density | ±5% |
| Coating |
S1:Ni-Cr-Fe S2:Broadband AR coated, Raveº incidence. |
| Length | 76.2 |
| Width | 25.4 |
| Thickness | 2.0 |
