L-BCX278 12.5 mm Dia. Double-Convex Lens; EFL=20mm Uncoated

The L-BCX278 is a high-quality double-convex lens offered by Ross Optical, a renowned vendor in the optical industry. This lens, with a diameter of 12.5 mm, is designed for use in a variety of optical systems, offering a high level of customization and precision.

The lens features a base shape of a circle, which is the most common and versatile shape in optical systems. The geometry of the lens includes a thickness edge of 1.5 mm and a thickness center of 3.5 mm, providing a solid structure and ensuring minimal distortion. The effective focal length (EFL) of this lens is 20 mm, making it suitable for medium-range optical applications.

The L-BCX278 is made from n-bk7 Schott, a high-grade optical glass known for its excellent optical properties. This material is particularly suitable for applications in the visible spectrum, with a wavelength of 587.6 nm. The lens is spherical in shape, which is the simplest and most common type of lens, offering a balance between cost and performance.

Notably, this lens is uncoated. While coatings can enhance the performance of a lens by reducing reflections and increasing transmission, an uncoated lens can be advantageous in certain applications where a natural chromatic aberration is desired or where cost is a significant factor.