The 14-468 is a rectangular colored glass longpass filter, measuring 50 x 50 mm with a thickness of 3 mm, sourced from the renowned optical vendor, Edmund Optics. This filter is designed for use in optical systems that require wavelength selection, particularly those operating in the visible light spectrum.
The filter's primary function is to transmit light at wavelengths above 305 nm, while blocking or attenuating shorter wavelengths. This is achieved through the use of SCHOTT N-WG305 glass, a material specifically engineered for optical applications. The glass is cut on 305 nm, ensuring a sharp transition between the transmitted and blocked wavelengths.
The 14-468 features a thin lens shape, which is beneficial in systems where space is at a premium. The front and back surfaces of the filter are coated with EDM 14-468, a coating that enhances the filter's performance and durability.
This filter is available for purchase through the Edmund Optics website, where it is listed as being in stock. The product's webpage provides further technical details, including detailed specifications and application examples.