L-BCX113 25 mm Dia. Double-Convex Lens; EFL=54mm Uncoated

The L-BCX113 is a 25 mm diameter double-convex lens, sourced from the renowned optical vendor, Ross Optical. This lens is a spherical type, specifically a convex-convex lens with a circular base shape. It is designed for use in a wide range of optical applications, thanks to its versatile specifications.

The lens has an effective focal length (EFL) of 54mm, making it suitable for applications that require a longer focal length. The double-convex design, characterized by its two convex surfaces, provides a high degree of refraction, focusing light efficiently onto the image sensor or other optical components.

The geometry of the lens includes a thickness of 1.9mm at the edge and 4.7mm at the center. The inner and outer radii are 0mm, and the radii of curvature for the two surfaces are 55mm and -55mm, respectively. This symmetrical design helps to minimize optical aberrations, ensuring high-quality image reproduction.

The lens is made from n-BK7 Schott, a high-quality optical glass known for its excellent transparency and low dispersion. This makes the lens suitable for use across a wide spectrum of wavelengths, with a specified wavelength of 587.6nm.

Notably, this lens is uncoated. While coatings can enhance the performance of lenses by reducing reflections, increasing transmission, and protecting the lens surface, an uncoated lens can be advantageous in certain applications where a natural chromatic aberration or specific reflection properties are desired.