54-665 12.5 mm Dia. SCHOTT RG1000 Black Longpass Color Glass Filter 1000nm

The 54-665 12.5 mm Dia. SCHOTT RG1000 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 3 mm, making it a versatile and robust choice for various optical systems.

This filter is specifically designed to transmit light with wavelengths of 1000nm and above, while effectively blocking light with shorter wavelengths. This longpass characteristic is crucial in many applications where specific wavelengths need to be isolated or emphasized. The filter's base shape is circular, a common and convenient form factor for many optical components.

The filter is made from SCHOTT RG1000 Black glass, a material known for its excellent optical properties and durability. The glass is cut on 1000nm, meaning it begins to transmit light at this wavelength. The cut off is 0, indicating that it blocks all wavelengths below 1000nm.

The filter features a coating on both the front and back surfaces, identified as 'edm 54-665'. This coating is likely designed to enhance the filter's performance, such as by reducing surface reflections or improving transmission efficiency. The filter's shape is described as 'Thin Lens', suggesting that it may have some lens-like properties, such as focusing or collimating light.