LF1097-A 25.4 mm Dia. N-BK7 Negative Meniscus Lens; EFL=-200mm 350-700nm

The LF1097-A is a high-quality spherical lens from Thorlabs, designed with a concave-convex base shape and a circular geometry. This lens boasts a diameter of 25.4 mm and a center thickness of 3 mm, with an edge thickness of 3.8 mm. The effective focal length (EFL) of this lens is -200mm, making it a negative meniscus lens. The front and back surfaces of the lens are coated with THo A Bbar, ensuring optimal performance in the visible light spectrum, particularly at the wavelength of 587.6 nm.

The lens is made from N-BK7 Schott, a popular optical glass known for its excellent optical properties and versatility. The inner and outer radii of the lens are 0, and the back focal length (BFL) is -197.3 mm. This lens is designed to work within the wavelength range of 350-700 nm, making it suitable for a wide range of optical applications.

According to the vendor's website, the LF1097-A is currently in stock, indicating its availability for immediate purchase and use. This lens is a reliable and efficient choice for those in need of a high-performance spherical lens with a negative meniscus shape.