LA1461-C N-BK7 Plano-Convex Lens; Dia:1 in; f=250.0 mm ARC 1050-1700nm

The LA1461-C is a Plano-Convex lens, a type of spherical lens, sourced from the reputable optical components manufacturer, Thorlabs. This lens is characterized by its circular base shape and a single curved surface, with the opposite side being flat. The lens is designed for use in the 1050-1700nm wavelength range, making it suitable for near-infrared applications.

The LA1461-C has a diameter of 1 inch (25.4mm) and a thickness of 2mm at the edge, while the center thickness measures 2.6mm. The effective focal length (EFL) of this lens is 250mm, which is the distance from the center of the lens to the focal point when the lens is imaging an object at infinity. The radius of curvature (R1) is 128.8mm, and the back focal length (BFL) is 247.4mm. The inner and outer radii are both 0, indicating that the lens has no peripheral curvature.

This lens is made of N-BK7, a type of borosilicate glass manufactured by Schott AG. N-BK7 is known for its excellent optical properties, making it a popular choice for a wide range of optical applications. The lens is coated with a broadband anti-reflection coating (ARC) that enhances its transmission capabilities in the specified wavelength range. The coating is applied to both the front and back surfaces of the lens, further improving its performance.