HO-PVL12.5-02C 12.5mm Dia. N-BK7 Plano-Concave Lens; EFL=-25mm Single Layer MgF2

This is a HO-PVL12.5-02C 12.5mm diameter Plano-Concave lens, manufactured by Holmarc Opto-Mechatronics. The lens is made of N-BK7, a popular glass type in the optical industry, known for its excellent optical properties and high damage threshold. The lens has a plano-concave geometry, meaning one side is flat while the other is curved inward.

The lens has a center thickness of 2.5mm and an effective focal length (EFL) of -25mm, indicating that it is a diverging lens. The radius of curvature (R1) is -13.04mm, which is the curvature of the concave surface. The lens does not have an inner or outer radius, suggesting that it is a simple plano-concave lens without any additional features.

The lens is coated with a single layer of MgF2 on both the front and back surfaces. This coating is designed to reduce reflection and increase transmission, enhancing the lens's performance in various applications. The coating is applied at 0 angle of incidence (AOI), ensuring uniform coverage and high-quality performance.

The lens is suitable for use at a wavelength of 587.6nm, making it suitable for applications in the visible spectrum. The lens is currently in stock and available for purchase through the Holmarc Opto-Mechatronics website.