66-042 12.5 mm Dia. Hoya O-58 Red Longpass Color Glass Filter 580nm

The 66-042 12.5 mm Dia. Hoya O-58 Red Longpass Color Glass Filter 580nm is a high-quality optical component designed for precise wavelength filtration. Sourced from the renowned vendor Edmund Optics, this filter is part of their extensive catalog, ensuring reliability and performance.

This filter is specifically designed for longpass applications, allowing wavelengths of 580nm and above to pass through while blocking shorter wavelengths. The cut-on wavelength is 580nm, and there is no specified cut-off wavelength, indicating that it blocks all wavelengths shorter than 580nm.

The filter is circular in shape, with a diameter of 12.5mm, making it suitable for a wide range of optical systems. It has a thickness of 2.5mm, providing sufficient structural integrity while minimizing optical distortion. The material ID for this filter is UVFS MAL-1965, although the specific composition of the material is not provided.

The filter features coatings on both the front and back surfaces, identified as EDM 66-042. These coatings are likely designed to enhance the filter's performance, such as by increasing transmission efficiency or reducing surface reflections. However, the specific properties of these coatings are not detailed in the provided data.

The filter's shape is described as a Thin Lens, suggesting that it may have some degree of optical power. However, without further information, it is not possible to quantify this power or determine its impact on the filter's performance.