G312341329 40 mm Dia. N-BK7 Plano-Convex Lens; EFL=150mm 1064nm

This G312341329 optical lens, sourced from Qioptiq Photonics, is a Plano-Convex Spherical Lens with a diameter of 40 mm. The lens is made from N-BK7, a popular optical glass type known for its excellent optical properties, making it suitable for various applications.

The lens has a large effective focal length (EFL) of 150 mm at a wavelength of 1064 nm. This long focal length allows for a narrower field of view and higher magnification, making it ideal for use in imaging systems, beam shaping, or other applications where a tight focus is required.

The lens's geometry includes a thickness of 2.4 mm at the edge and 5 mm at the center. The front and back surfaces have radii of curvature of 78.3 mm and 0 mm, respectively, indicating a plano-convex design. This design is often used to minimize spherical aberration, a common optical problem that can degrade image quality.

The lens features a coating of Qio HP Nbar Arhs-Yag on both the front and back surfaces. This anti-reflection coating reduces surface reflections, improving transmission and reducing unwanted glare or ghosting. The coating is specifically designed for use with the YAG (Yttrium Aluminum Garnet) laser wavelength of 1064 nm.