LA1979-AB 50.8 mm Dia. N-BK7 Plano-Convex Lens; EFL=200mm 400-1100nm

The LA1979-AB is a Plano-Convex Lens with a diameter of 50.8 mm, sourced from the reputable optical components manufacturer, Thorlabs. This lens is made from N-BK7, a popular glass type known for its excellent optical properties, particularly its high refractive index and low dispersion.

The lens's geometry is characterized by its 3 mm thickness at the edge and 6.2 mm at the center, with an effective focal length (EFL) of 200 mm. The curvature of the lens is defined by a radius of 103 mm on the planar side and no curvature on the convex side, making it a Plano-Convex lens.

The LA1979-AB is designed to operate within the wavelength range of 400-1100 nm, with a central wavelength of 587.6 nm. It features anti-reflection broadband coatings on both the front and back surfaces, specifically Thorlab's AR coating (THO AB BAR), which provides high transmission across the specified wavelength range.

This lens is ideal for applications that require a high-quality, broadband lens with a long focal length. Its Spherical shape ensures excellent image quality, making it suitable for various optical systems, including imaging systems, beam shaping, and laser applications.