The 65-678 is a 25 mm Dia. Mounted Traditional Coated Bandpass Interference Filter, specifically designed for applications requiring a narrow bandwidth. This filter, offered by Edmund Optics, is characterized by its 405 nm Central Wavelength (CWL) and 10 nm Full Width Half Maximum (FWHM). The filter's construction includes a UVFS material with a Mal-1965 coating on both the front and back surfaces, ensuring high-quality performance.
The filter's geometry is defined by a 25 mm diameter and a 7.5 mm thickness, making it suitable for various optical systems. The cut-on wavelength is 400 nm, and the cut-off wavelength is 410 nm, further emphasizing its bandpass characteristics. The coating, edm 65-618, is applied to both the front and back surfaces, contributing to the filter's overall optical performance.
This filter is available directly from the vendor, Edmund Optics, and is currently in stock, ensuring quick delivery for your optical project needs. For more detailed information, you can refer to the product's webpage at https://www.edmundoptics.com/p/405nm-cwl-25mm-dia-10nm-fwhm-interference-filter/20196/.