PLCC-25.4/20.6C 25.4 mm Dia. N-BK7 Plano-Concave Lens; EFL=-40mm Uncoated

This is a Plano-Concave Lens from Laser Components, designed with a base shape of a circle and a spherical geometry. The lens has a diameter of 25.4 mm and a center thickness of 2 mm. The effective focal length (EFL) of this lens is -40 mm, making it a negative or diverging lens. The radius of curvature (R1) is -20.6 mm, and both the inner and outer radii are 0 mm.

The lens is made of N-BK7, a type of glass commonly used in optical applications due to its excellent optical properties. This specific lens is uncoated, meaning it does not have any additional layers to enhance its optical performance. However, uncoated lenses can still provide high-quality performance, especially in applications where the coating might interfere with the desired optical effect.

The lens is designed to work with a wavelength of 633 nm, making it suitable for a wide range of applications, including laser systems and optical metrology. The item data does not specify the coating of this lens, so it's safe to assume that it is uncoated unless stated otherwise in the vendor's documentation.

Please note that the link provided in the item data leads to a datasheet for plano-concave lenses in general, not specifically for this item. For detailed information about this particular lens, it's recommended to consult the vendor's specific product page or contact them directly.