FGL515M Dia. 25 mm SM1-Mounted Colored Glass Filter; 515nm Longpass

The FGL515M is a color glass filter, circular in shape, with a diameter of 25 mm and a thickness of 2 mm. Manufactured by Thorlabs, this filter is designed for use in optical systems that require longpass filtering at 515 nm. The filter is made of n-bk7 Schott material, a popular choice for its excellent optical properties and versatility.

The FGL515M boasts a cut-on wavelength of 515 nm, meaning it begins to transmit light at this point in the spectrum. Conversely, it has a cut-off wavelength of 0 nm, indicating it allows all wavelengths shorter than 515 nm to pass through. This makes it ideal for applications where longer wavelengths need to be blocked, such as in fluorescence microscopy or other biomedical imaging techniques.

The filter features a thin lens shape and is mounted with SM1, a thread standard used in many Thorlabs components. This mounting method allows for easy integration into existing optical systems. The front and back surfaces of the filter are coated with tho fgl515, a coating specifically designed to enhance the filter's performance and durability.

According to the vendor's information, the FGL515M is currently in stock, and users can access more details and purchase information through the provided weblink. This filter is a reliable and efficient solution for applications requiring longpass filtering at 515 nm.