This is a 65-104 Bandpass Filter, a high-quality optical component sourced from Edmund Optics. The filter is designed with a diameter of 12.5 mm and a thickness of 3.5 mm, making it suitable for various optical applications.
The Bandpass Filter is a type of optical filter that allows light within a specific narrow range of wavelengths to pass through while blocking out other wavelengths. In this case, the filter is centered at 620nm, with a cut-on wavelength of 615nm and a cut-off wavelength of 625nm. This precise wavelength range makes it ideal for applications that require the isolation of specific light sources or the reduction of unwanted background light.
The filter is hard coated on both the front and back surfaces with the EDM 65-104 coating. This coating enhances the filter's durability and resistance to environmental factors, ensuring reliable performance over time. The filter's shape is defined as a Thin Lens, which is a lens with a thickness much less than its diameter, designed to minimize optical aberrations.
For more detailed information, including availability and pricing, please refer to the provided weblink: https://www.edmundoptics.com/p/620nm-cwl-125mm-dia-hard-coated-od-4-10nm-bandpass-filter/19759/.