The 45-247 is a Plano-Convex lens with a diameter of 50.0mm and a focal length of 125.0mm, sourced from the renowned optical components vendor, Edmund Optics. This lens is uncoated, offering users a bare, unaltered optical surface that can be utilized in a wide array of applications.
The lens's geometry is characterized by a convex shape on one side, with a radius of curvature of 64.6mm, and a flat surface on the other. The center thickness of the lens measures 10.0mm, while the edge thickness is 4.97mm. The back focal length (BFL) is 118.39mm, and the effective focal length (EFL) is 125.0mm. The lens's design is circular, providing a wide field of view and uniform illumination.
The lens is fabricated from the high-quality material N-BK7 Schott, a borosilicate crown glass known for its excellent optical properties, including a low coefficient of thermal expansion, high homogeneity, and excellent transmittance in the visible spectrum. The material's refractive index at the specified wavelength of 587.6nm is 1.5168.
This lens is an ideal choice for applications that require a simple, high-performing optical component. Its uncoated surface makes it suitable for use in systems where anti-reflection coatings are not necessary or desired. The lens's dimensions, shape, and material properties make it compatible with various optical systems, including imaging systems, beam shaping systems, and laser applications.