LA1229-C N-BK7 Plano-Convex Lens; Dia:1 in; f=175.0 mm ARC 1050-1700nm

The LA1229-C is a plano-convex lens with a diameter of 1 inch, designed and manufactured by Thorlabs. This lens is made of N-BK7, a popular glass type in the optical industry, known for its excellent optical properties and versatility. The lens has a focal length of 175.0 mm, making it suitable for a wide range of applications that require moderate magnification.

The lens geometry is characterized by its diameter, thickness, and radii of curvature. The diameter is 1 inch (25.4 mm), and the edge thickness is 2 mm, while the center thickness is 2.9 mm. The front surface has a radius of curvature of 90.1 mm, and the back focal length is 172.5 mm. The lens does not have any inner or outer radius, indicating a plano surface on the opposite side of the curved surface.

The LA1229-C is coated with a broadband anti-reflection coating, designed to operate in the 1050-1700 nm range. This coating reduces surface reflections, enhancing the transmission of light through the lens. The coating is applied to both the front and back surfaces of the lens, ensuring optimal performance in both transmission and reflection.