LA1380-B N-BK7 Plano-Convex Lens; Dia:2 in; f=500.0 mm ARC 650-1050nm

The LA1380-B is a Plano-Convex lens, designed and manufactured by Thorlabs, a leading global supplier of photonics equipment. This lens boasts a diameter of 2 inches, making it suitable for a wide range of applications that require high-quality optical components.

The lens is made from N-BK7, a type of borosilicate glass known for its excellent optical properties. This material is particularly prized for its low coefficient of thermal expansion, which reduces the risk of thermal stress and ensures the lens maintains its shape and performance even in varying temperature conditions.

The Plano-Convex design of the LA1380-B features a flat front surface and a curved back surface. This design is often used to focus or collimate light, making it ideal for use in imaging systems, beam shaping, and other applications where precise control over light is required.

The lens has an effective focal length (EFL) of 500.0 mm, which is the distance from the lens to the point where it focuses or collimates light. This long focal length makes the LA1380-B suitable for use in systems where a narrow, highly focused beam of light is required.

The LA1380-B is coated with Thorlabs' BBAR coating, which stands for Broadband Anti-Reflection. This coating reduces reflection at the lens surfaces, improving transmission and reducing the risk of unwanted reflections. The BBAR coating is designed to work across a wide range of wavelengths, from 650 to 1050 nm, making this lens versatile and suitable for use with a variety of light sources.