84-786 25 mm Dia. Hard Coated OD 4.0 50nm Bandpass Filter; t=3.5 mm 650nm

The 84-786 is a Bandpass Filter, specifically designed for applications requiring a narrow passband. This filter, sourced from Edmund Optics, features a 25 mm diameter and a thickness of 3.5 mm, making it suitable for various optical systems. The filter's primary function is to transmit light within a specific range of wavelengths while blocking other wavelengths.

The 84-786 Bandpass Filter has a center wavelength (CWL) of 650nm, which is the wavelength at which the filter's transmission is maximum. The filter's cut-on wavelength is 625nm, and the cut-off wavelength is 675nm. This means that the filter begins to transmit light at 625nm and stops transmitting at 675nm, effectively passing light in the 650nm range.

The filter is hard coated with the EDM 84-774 coating on both the front and back surfaces. 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. This shape contributes to the filter's compact design and ease of integration into optical systems.

The 84-786 Bandpass Filter is currently in stock and available for purchase through the Edmund Optics website. The filter's catalog number is 84-786, and it can be found at the following weblink: https://www.edmundoptics.com/p/650nm-cwl-25mm-dia-hard-coated-od-4-50nm-bandpass-filter/27855/.