FGS550 Dia. 25 mm KG2 Colored Glass Bandpass Filter; 304-785nm

The FGS550 is a color glass bandpass filter, characterized by its circular shape and a diameter of 25 mm. Manufactured by Thorlabs, this filter is made from n-bk7 schott material, a type of borosilicate glass known for its excellent optical properties and durability.

The filter's primary function is to allow light transmission within a specific wavelength range while blocking other wavelengths. In this case, the FGS550 is designed to cut on at 304 nm and cut off at 785 nm, making it suitable for applications that require narrowband transmission in the ultraviolet to near-infrared regions of the spectrum.

The filter's coating, applied to both the front and back surfaces, is identified as 'tho fgs550'. This coating enhances the filter's performance by reducing surface reflections and improving transmission efficiency. The filter has a thickness of 2 mm, which contributes to its overall robustness and stability.

The FGS550 is available from Thorlabs and is currently in stock, according to the vendor's website. For more detailed information or to make a purchase, users can follow the provided weblink to Thorlabs' official product page.