64-639 50 mm Dia. Traditional Coated OD 2.0 Longpass Filter; t=5mm 775nm

The 64-639 is a Longpass Filter, part of the extensive catalog of optical elements provided by Edmund Optics. This filter, with a diameter of 50 mm and a thickness of 5 mm, is designed for use in advanced optical systems and applications.

The filter's primary function is to allow the transmission of light with wavelengths greater than 775 nm, while blocking or attenuating shorter wavelengths. This is achieved through a specialized coating, denoted as "edm 64-623" on both the front and back surfaces. This coating ensures a high level of performance and durability, making the 64-639 suitable for a wide range of optical applications.

The filter's geometry, with a diameter of 50 mm, provides a large aperture, allowing for efficient light collection and transmission. The thickness of 5 mm, along with the "Thin Lens" shape, ensures minimal optical distortion and maintains the integrity of the optical path.

The 64-639 is currently in stock and available for immediate use. For more information, including detailed specifications and purchasing options, please refer to the provided weblink: https://www.edmundoptics.com/p/775nm-50mm-diameter-od-2-longpass-filter/19345/