LA4855 UV Fused Silica Plano-Convex Lens; Dia:2 in; f=301.1 mm; Uncoated

The LA4855 is a plano-convex lens made of UV fused silica, featuring a diameter of 2 inches and a focal length of 301.1 mm. This lens, sourced from Thorlabs, is uncoated, offering users a versatile and cost-effective solution for their optical needs.

The lens's geometry includes a thickness of 3 mm at the edge and 5.4 mm at the center, with a back focal length of 297.4 mm. The inner and outer radii are both 0, indicating a planar surface on one side and a curved surface on the other. The effective focal length (EFL) is 301.1 mm, which is the distance from the lens's center to the focal point when the lens is placed in an optical system.

The LA4855 is designed to work with a wavelength of 587.6 nm, making it suitable for a wide range of applications. Its spherical shape ensures excellent light gathering and focusing capabilities. The lens is made of UV fused silica, a material known for its high transparency in the ultraviolet region, making it an ideal choice for UV applications.

Please note that the lens is uncoated, meaning it does not have any anti-reflective or protective coatings. While this can make the lens more affordable, it may also make it more susceptible to environmental factors and could result in lower transmission rates.