48-695 12mm Dia. x -24mm FL; VIS 0deg Coated; Double-Concave Lens 425-675nm

The 48-695 is a Spherical Lens (Concave-Concave) type of optical component, sourced from the renowned vendor Edmund Optics. This lens boasts a 12mm diameter and a focal length of -24mm, making it a double-concave lens. The base shape of this lens is circular, ensuring a symmetrical and uniform optical path.

The lens has a center thickness of 2mm and an edge thickness of 3.31mm, providing a robust structure while maintaining a sleek profile. The effective focal length (EFL) is -24.65mm, and the radii of curvature are -25.14mm for the first surface and 25.14mm for the second surface. The back focal length (BFL) is -24.65mm, and both the inner and outer radii are 0mm, indicating a uniform curvature throughout the lens.

The lens is made of N-BK7 Schott material, a popular choice for its high refractive index and low dispersion. This material is ideal for applications that require high optical performance, such as imaging systems, beam shaping, and laser applications within the visible spectrum, specifically between 425-675nm.

The lens features a front and back coating of EDM VIS-0 STD CURVE, providing excellent transmission and protection against environmental factors. This coating is designed for use in the visible spectrum, ensuring optimal performance for applications within this range.