65-131 25 mm Dia. Hard Coated OD 4.0 10nm Bandpass Filter; t=3.5 mm 394nm

The 65-131 is a Bandpass Filter, specifically designed by Edmund Optics, a renowned vendor in the optical industry. This filter, with a catalog number 65-131, is a crucial component in various optical systems, primarily used to allow light within a specific wavelength range to pass through while blocking out other wavelengths.

The filter has a circular shape, with a diameter of 25 mm, making it compatible with a wide range of optical systems. It boasts a thickness of 3.5 mm, providing robustness and stability in its placement within an optical setup. The filter is hard coated, enhancing its durability and resistance to wear and tear, a crucial feature for long-term use.

The 65-131 filter is designed to operate at a central wavelength of 394 nm, making it suitable for applications that require precise filtering in the ultraviolet region of the spectrum. The filter's physical data includes a cut-on wavelength of 389 nm and a cut-off wavelength of 399 nm, ensuring a tight bandpass and high spectral purity.

The filter's coating is another notable feature. Both the front and back surfaces are coated with EDM 65-070, a coating that enhances the filter's performance and longevity. The filter's shape is described as a Thin Lens, indicating its potential use in lens systems.

According to the vendor's website, this item is currently in stock, ensuring quick delivery and immediate usability in your optical projects. For more information, you can visit the provided weblink.