66-048 12.5 mm Dia. Hoya IR-80 Black Longpass Color Glass Filter 800nm

The 66-048 Hoya IR-80 Black Longpass Color Glass Filter is a high-quality optical component designed for use in a wide range of applications. Sourced from the renowned optical vendor Edmund Optics, this filter boasts a 12.5 mm diameter and a thickness of 2.5 mm, making it a versatile and robust choice for various optical systems.

This filter is specifically designed to transmit infrared light with wavelengths of 800nm and above, while effectively blocking shorter wavelengths. This longpass characteristic is crucial in applications where infrared light needs to be isolated or emphasized, such as infrared photography, spectroscopy, and beam filtration.

The filter is made from Hoya's IR-80 material, which is known for its excellent optical properties and durability. The front and back surfaces of the filter are coated with EDM 66-048, a proprietary coating developed by Edmund Optics to enhance the filter's performance and longevity.

The filter's geometry, including its diameter and thickness, is designed to ensure easy integration into existing optical systems. Its thin lens shape allows for minimal interference with other optical components, while its 12.5 mm diameter provides a generous aperture for efficient light transmission.