L-PCC021 12.5 mm Dia. Plano-Concave Lens; EFL=-75mm Uncoated

The L-PCC021 is a 12.5 mm diameter Plano-Concave lens, part of the extensive catalog offered by Ross Optical. This lens is designed with a spherical shape and a concave base, making it ideal for a variety of optical applications.

The lens features an effective focal length (EFL) of -75mm, indicating that it is a diverging lens, causing incoming light rays to spread out. This property makes it suitable for use in applications such as beam expansion, image reduction, or in systems where a reduction in optical power is required.

The lens is made from N-BK7 Schott glass, a popular material known for its excellent optical properties and high damage threshold. This material is widely used in various optical systems due to its low optical dispersion and high Abbe number, which contributes to superior image quality.

The lens has a center thickness of 1.5mm, providing sufficient structural integrity while maintaining a compact profile. The inner and outer radii are both zero, indicating a plano surface on one side and a concave surface on the other. The curvature of the concave surface is specified as -38.76mm.

Notably, this lens is uncoated. While coatings can enhance the performance of lenses by reducing surface reflections, increasing transmission, or providing protection against environmental factors, an uncoated lens can be advantageous in certain applications where cost, simplicity, or specific optical characteristics are priorities.