62-975 12.5 mm Dia. Hard Coated High Performance OD 4.0 Longpass Filter; t=2 mm 450nm

The 62-975 is a high-performance longpass filter, designed and manufactured by Edmund Optics. This filter, with a diameter of 12.5 mm, is specifically engineered to allow light with wavelengths longer than 450 nm to pass through while blocking shorter wavelengths. The filter's longpass characteristic is crucial in various applications, such as fluorescence microscopy, where it helps to eliminate unwanted short-wavelength light.

The filter is constructed with a base shape of a circle, a common form factor for optical components due to its symmetry and ease of integration into various systems. It features a thickness of 2 mm, providing robustness and stability. The material ID, uvfs mal- 1965, indicates the specific material used in the filter's construction, although the exact material properties are not provided in the data.

The 62-975 filter boasts a hard coating on both the front and back surfaces. This coating enhances the filter's durability, making it resistant to scratches and other forms of physical damage, thereby extending its lifespan. The coating also aids in maintaining the filter's performance over time, ensuring consistent optical behavior.

The filter's geometry, including its diameter and thickness, is designed to conform to the standard specifications for optical components, ensuring compatibility with various optical systems. The physical data, specifically the cut-on wavelength of 450 nm, further defines the filter's optical properties.