46-084 25 x 25 mm Hoya U-340 (UV) Black Colored Glass Bandpass Filter 340nm

The 46-084 25 x 25 mm Hoya U-340 (UV) Black Colored Glass Bandpass Filter is a specialized optical component designed for use in applications where precise wavelength control is required. Sourced from the renowned optical vendor Edmund Optics, this filter is a part of their extensive catalog of optical elements.

This filter is a Bandpass type, specifically designed to allow light in a narrow range of wavelengths to pass through while blocking out other wavelengths. The central wavelength (CWL) of this filter is 340nm, making it ideal for ultraviolet (UV) applications. The filter is made from Hoya's U-340 UV glass, which is known for its excellent transmittance in the UV range.

The filter has a rectangular shape with dimensions of 25 x 25 mm, providing a large surface area for light to pass through. It has a thickness of 2.5mm, ensuring durability and rigidity. The filter features a black colored glass bandpass, which aids in reducing unwanted reflections and stray light.

The coating on both the front and back of the filter is EDM 46-096. This coating enhances the filter's performance by reducing surface reflections and increasing transmission. The filter's shape is that of a thin lens, further minimizing surface reflections and ensuring optimal performance.