68-338 50 mm Dia. Mounted Traditional Coated Bandpass Interference Filter; t=3.5 mm 228nm

The 68-338 is a 50 mm diameter Bandpass Interference Filter, meticulously crafted by Edmund Optics. This filter is designed with a center wavelength of 228nm and a full width at half maximum (FWHM) of 25nm, making it an ideal choice for applications that require precise wavelength selection.

The filter is constructed with a thickness of 3.5mm, providing durability and stability. It features a circular shape, a common form factor in optical components, which ensures easy integration into various optical systems. The material ID, uvfs mal- 1965, indicates the specific material used in the filter's construction, further enhancing its performance in ultraviolet applications.

The 68-338 filter boasts a sophisticated coating on both the front and back surfaces. This coating, identified as edm 68-336, is designed to enhance the filter's performance by reducing unwanted reflections and increasing transmission. The coating also provides protection to the filter's delicate surfaces, ensuring longevity and reliability.

The filter's physical data includes a cut-on wavelength of 215.5nm and a cut-off wavelength of 240.5nm. These values are crucial in determining the filter's spectral performance and its ability to block unwanted wavelengths. The center wavelength of 228nm falls within this range, indicating the filter's high selectivity and efficiency.

The filter's shape is described as a Thin Lens, a design that minimizes optical aberrations and ensures superior image quality. This shape, combined with the filter's other features, makes the 68-338 a versatile and high-performing component in various optical applications.