The LA1131 N-BK7 Plano-Convex Lens is a high-quality optical component sourced from Thorlabs, a leading vendor in the field of optical equipment. This lens, with a diameter of 1 inch and a focal length of 50.0 mm, is designed to meet the stringent requirements of various optical applications.
The lens is made of N-BK7, a popular borosilicate glass known for its excellent optical properties. This material, also known as Schott glass, is characterized by a low coefficient of thermal expansion and a high refractive index, making it an ideal choice for many optical systems.
The Plano-Convex design of this lens features a flat surface on one side and a curved surface on the other. This design is often used to collimate or focus light, making it suitable for a wide range of applications, from imaging to laser systems.
The geometry of the lens includes a diameter of 25.4 mm, an edge thickness of 2 mm, and a center thickness of 5.3 mm. The effective focal length (EFL) is 50 mm, and the radius of curvature of the curved surface is 25.8 mm. The back focal length (BFL) is 46.3 mm.
Notably, this lens is uncoated. While coatings can be used to reduce reflection, increase transmission, or provide other benefits, an uncoated lens can be advantageous in certain situations, such as when minimal reflection is required or when cost is a concern.
The LA1131 N-BK7 Plano-Convex Lens is currently in stock, according to the vendor's website. For more information, including technical specifications and purchasing details, please refer to the provided weblink.