PLCC-12.7-25.8-C 12.7 mm Dia. N-BK7 Laser Grade Plano-Concave Lens; EFL=-50mm Uncoated

This is a PLCC-12.7-25.8-C laser grade plano-concave lens, sourced from CVI Laser Optics. The lens has a diameter of 12.7 mm and a center thickness of 2 mm, making it a compact and efficient optical component. The effective focal length (EFL) of this lens is -50 mm, indicating that it is a negative or diverging lens, which spreads out light rays from a single point source.

The lens is made of N-BK7, a high-quality borosilicate glass commonly used in optical systems due to its excellent optical properties. This material is known for its low optical dispersion, high homogeneity, and excellent chemical resistance, making it an ideal choice for laser applications.

The lens is uncoated, meaning it does not have any additional layers to enhance its optical properties. While this may limit its performance in certain applications, it can be beneficial in others where specific coatings may interfere with the desired optical effect.

The lens's geometry is spherical, with a radius of curvature of -25.8 mm for the concave surface. The inner and outer radii are both 0, indicating that the lens has a uniform thickness throughout.

This lens is designed to operate at a wavelength of 588 nm, making it suitable for a wide range of applications in the visible light spectrum. The catalog number for this lens is PLCC-12.7-25.8-C, and it is currently in stock, according to the vendor's website.