The 45-141 3.0mm Dia. x 4.5mm FL is a Plano-Convex lens sourced from Edmund Optics. This lens, with a diameter of 3mm and a focal length of 4.5mm, is uncoated, which means it does not have any additional layers to protect or modify its optical properties.
The lens's geometry includes a thickness of 1.47mm at the edge and 1.8mm at the center. The effective focal length (EFL) is 4.5mm, and the radius of curvature (R1) is 3.62mm. The back focal length (BFL) is 3.5mm, and both the inner and outer radii are 0mm, indicating a planar surface on one side of the lens.
This lens is made of n-lasf44 Schott, a material known for its excellent optical properties. The lens is designed to work with a wavelength of 587.6nm, making it suitable for applications that use this specific wavelength.
Please note that the lens does not have any coatings, which could affect its performance in certain applications. However, its simple design and high-quality material make it a versatile option for various optical systems.