69-218 25.2 x 35.6 mm Dichroic Shortpass Filter; t=1.05mm 700nm

The 69-218 is a Dichroic Shortpass Filter, measuring 25.2 x 35.6 mm with a thickness of 1.05mm, sourced from Edmund Optics. This filter is designed to reflect shorter wavelengths and transmit longer wavelengths, making it ideal for applications that require the separation of light based on wavelength.

The filter's primary function is to cut off light at a specific wavelength, in this case, 700nm. This means that it will allow light with wavelengths greater than 700nm to pass through while reflecting or absorbing light with wavelengths less than 700nm. The cut-on wavelength is 0nm, indicating that it does not allow any wavelengths shorter than its specified cut-off to pass through.

The 69-218 features a dichroic coating on both the front and back surfaces, specifically the EDM 69-182 coating. This coating enhances the filter's performance by ensuring precise wavelength discrimination and high transmission efficiency.

The filter is rectangular in shape and is categorized as a Thin Lens. It is currently in stock and available for purchase through the Edmund Optics website. The catalog number for this item is 69-218.

This filter is suitable for a wide range of applications, including but not limited to, fluorescence microscopy, spectroscopy, and other optical systems that require wavelength discrimination.