LPK-12.5-7.8-C 12.5 mm Dia. N-BK7 Image Grade Plano-Concave Lens; EFL=-15mm Uncoated

This LPK-12.5-7.8-C is a high-quality Plano-Concave Spherical Lens, sourced from the reputable vendor CVI Laser Optics. The lens boasts a 12.5 mm diameter, making it suitable for a wide range of optical applications. The lens's concave shape, with a radius of curvature of -7.8 mm, contributes to its unique optical properties.

The lens is made from N-BK7, a popular glass type in the optical industry, known for its excellent optical properties and versatility. The N-BK7 Schott material ID indicates that this lens is made from high-quality, precision-grade glass, ensuring optimal performance.

The lens has an effective focal length (EFL) of -15 mm, which is a common specification for concave lenses. This EFL value suggests that the lens is designed to diverge light, making it ideal for use in applications such as beam expansion or collimation.

Notably, this lens is uncoated. While coatings can enhance the performance of lenses by reducing reflections, increasing transmission, or providing other benefits, an uncoated lens can be advantageous in certain applications where specific coating properties are not required.

For more detailed specifications and performance data, please refer to the vendor's catalog or website. The provided weblink leads to a comprehensive PDF document detailing the lens's properties and performance characteristics.