The 13-190 is a 50 mm diameter Neutral Density Filter, specifically designed for use in the near-infrared spectrum, between 600-1050nm. This filter is manufactured by Hoya, a renowned name in the optical industry, and is sourced from Edmund Optics, a trusted vendor in the field.
The filter is of the Absorptive type, meaning it reduces light intensity by absorbing a portion of the light spectrum. This particular model has an Optical Density (OD) of 1.3, which translates to a transmission of approximately 13% of the incident light. This makes it suitable for applications where a significant reduction in light intensity is required, such as in high-powered laser systems or in intense lighting conditions.
The filter is circular in shape, with a thickness of 1.45mm, and features a Thin Lens design. This design helps to minimize optical aberrations and distortions, ensuring the highest quality image or data output. The filter is also coated on both the front and back surfaces with EDM 13-173, a proprietary coating developed by Edmund Optics. This coating enhances the filter's performance by reducing surface reflections and improving transmission.
The 13-190 is currently in stock and available for purchase through the Edmund Optics website. For more information, including technical specifications and pricing, please refer to the provided weblink.