LP11-30-75 25.4 mm Dia. N-BK7 Plano-Concave Lens; EFL=-75mm 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, a popular optical glass, and has a negative focal length (EFL) of -75 mm, making it suitable for use in applications that require light convergence.

The lens's geometry is defined by a concave surface with a radius of curvature (R1) of -38.9 mm. The lens does not have an inner or outer radius, indicating a uniform curvature from the edge to the center. The wavelength for this lens is 546.1 nm, which is within the visible light spectrum.

The lens does not come with any coating, as indicated in the item data. Coatings are often applied to lenses to enhance their performance by reducing reflection, increasing transmission, or providing protection against environmental factors. However, this lens, being uncoated, may have higher reflection and lower transmission compared to coated lenses.

Please note that the information provided here is based on the item data and does not include any additional assumptions or details. For more information about this lens, including its availability and pricing, please refer to the vendor's website.