The 67-824 is a 25 mm diameter mounted traditional coated bandpass interference filter, designed and manufactured by Edmund Optics. This filter is specifically engineered for applications that demand precise wavelength selection and high transmission. The filter features a center wavelength (CWL) of 350nm, making it suitable for ultraviolet (UV) applications.
The filter's physical data includes a cut-on wavelength of 330nm and a cut-off wavelength of 370nm. This means that the filter begins to transmit at 330nm and stops transmitting at 370nm, effectively isolating the 350nm wavelength. The filter's thickness is 6.9mm, providing sufficient mechanical stability for most applications.
The 67-824 filter is coated with EDM 67-757 on both the front and back surfaces. This coating enhances the filter's performance by reducing reflection and increasing transmission. The filter's shape is a thin lens, which minimizes optical aberrations and ensures accurate wavelength selection.
This filter is available for purchase directly from the Edmund Optics website, where it is listed as in stock. The product page provides additional technical specifications and application notes, which can be helpful for users looking to integrate this filter into their optical systems.