LF1547 25.4 mm Dia. N-BK7 Negative Meniscus Lens; EFL=-150mm Uncoated

The LF1547 is a 25.4 mm diameter spherical lens with a negative meniscus shape, sourced from Thorlabs. This lens is designed for use in optical systems that require a concave-convex lens configuration. The lens's base shape is circular, and it is uncoated.

The lens's geometry includes an outer diameter of 25.4 mm, a thickness at the edge of 4.1 mm, and a center thickness of 3 mm. The effective focal length (EFL) is -150 mm, indicating that this is a diverging lens. The first radius of curvature (R1) is 100 mm, while the second radius of curvature (R2) is 43.1 mm. The back focal length (BFL) is -148 mm. The lens does not have an inner or outer radius.

The lens is made of N-BK7, a type of borosilicate glass manufactured by Schott. This material is known for its excellent optical properties, making it a popular choice for a wide range of optical applications. The lens is designed to operate at a wavelength of 587.6 nm.

Please note that the lens is uncoated. Coatings can be applied to lenses to enhance their performance in specific applications, such as reducing reflection or increasing transmission. However, this lens has been left uncoated, which may be suitable for certain applications where such coatings are not required.

The vendor for this lens is Thorlabs, a leading manufacturer of photonics equipment. The link provided leads to the product page on their website, where you can find more information about this lens and its specifications. The status of the weblink indicates that the lens is in stock, ready for immediate purchase and use in your optical system.