The FGL590S is a 2 in x 2 in Square OG590 Colored Glass Filter, specifically designed for longpass applications with a cut-on wavelength of 590nm. This filter is sourced from the renowned optical component manufacturer, Thorlabs.
The filter is made of n-BK7 Schott material, a high-grade borosilicate glass known for its excellent optical properties. It boasts a rectangular base shape, with a width and height of 50.8mm each, and a thickness of 2mm. This makes it an ideal choice for applications that require a thin, yet robust optical element.
The FGL590S features a thin lens shape, which is designed to minimize optical aberrations and ensure optimal light transmission. The filter's coating, both on the front and back, is 'tho fgl590', which is specifically engineered to provide superior performance in longpass applications.
The physical data of the filter indicates a cut-on wavelength of 590nm, meaning it starts transmitting light from this wavelength and beyond. The cut-off wavelength is 0nm, implying that it transmits all wavelengths shorter than 590nm.
This filter is currently in stock and available for immediate purchase through the Thorlabs website, as indicated by its weblink status. For more detailed information, you can visit the product page at https://www.thorlabs.com/thorproduct.cfm?partnumber=FGL590S.