LP11-25-100 25.4 mm Dia. N-BK7 Plano-Concave Lens; EFL=-100mm Uncoated

This is a Plano-Concave Spherical Lens, sourced from CeNing Optics, with a diameter of 25.4 mm and a center thickness of 2 mm. The lens is made of N-BK7 Schott, a popular optical glass known for its excellent optical properties. The effective focal length (EFL) of this lens is -100 mm, indicating that it is a diverging lens, causing incoming light rays to spread out.

The lens's inner radius is 0 mm, and the outer radius is also 0 mm, suggesting that the lens's curved surface is on the side facing away from the incoming light. This is consistent with the plano-concave design, where one side of the lens is flat (plano) and the other side is curved inward (concave).

The lens is designed to operate at a wavelength of 546.1 nm, which is in the green part of the visible light spectrum. It does not have any coating, as indicated by the empty "coating" field in the item data. This means that the lens will not have any special surface treatments to enhance its optical properties, such as anti-reflective coatings or protective coatings.

The lens's geometry and material properties make it suitable for a wide range of optical applications, including imaging systems, beam shaping, and laser applications. However, potential users should carefully consider the lens's specifications and their application requirements to ensure a good match.