LP11-18-50 18 mm Dia. N-BK7 Plano-Concave Lens; EFL=-50mm Uncoated

This is a Plano-Concave lens, type of spherical lens, offered by CeNing Optics. The lens has a circular base shape with a diameter of 18 mm and a center thickness of 2 mm. The effective focal length (EFL) of this lens is -50 mm, making it a negative or diverging lens. The radius of curvature (R1) is -25.94 mm, and the inner and outer radii are 0 mm, indicating that the lens is plano on one side and concave on the other.

The lens is made of N-BK7, a type of glass manufactured by Schott. This material is known for its excellent optical properties, making it a popular choice for various optical applications. The lens is uncoated, meaning it does not have any additional layers to enhance its optical properties or protect it from environmental factors.

The lens is designed to operate at a wavelength of 546.1 nm. This wavelength falls within the visible light spectrum, suggesting that this lens is intended for use in visible light applications.

Please note that the information provided here is based on the data given and does not include any additional assumptions or details. For more information, including current stock status and purchasing options, please refer to the vendor's website.