LA1304 N-BK7 Plano-Convex Lens; Dia:0.5 in; f=40.0 mm Uncoated

The LA1304 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 0.5 inches, is designed for use in a variety of optical systems, offering a focal length of 40.0 mm.

The lens is made of N-BK7, a type of borosilicate glass known for its excellent optical properties. This material is often used in high-precision applications due to its low coefficient of thermal expansion and high homogeneity. The lens's geometry features a plano-convex shape, meaning one side is flat while the other is curved, which is a common design for focusing light in optical systems.

The geometry of the LA1304 lens includes a diameter of 12.7 mm, with a center thickness of 2.8 mm and an edge thickness of 1.8 mm. The effective focal length (EFL) is 40 mm, and the radius of curvature (R1) is 20.6 mm. The back focal length (BFL) is 38 mm, and the lens has no inner or outer radius, indicating a uniform curvature.

This lens is uncoated, meaning it does not have any additional layers to enhance its optical properties. While coatings can be beneficial in reducing reflection and increasing transmission, an uncoated lens can be suitable for applications where such enhancements are not necessary.

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