L-BCX260 75 mm Dia. Double-Convex Lens; EFL=500mm Uncoated

The L-BCX260 is a high-quality double-convex lens offered by Ross Optical, a renowned vendor in the optical industry. This lens, with a diameter of 75 mm, is designed for use in a variety of optical applications, thanks to its impressive specifications.

The lens features a large effective focal length (EFL) of 500mm, making it suitable for use in systems that require significant magnification or focusing power. The double-convex design, characterized by its base shape of a circular geometry, ensures a wide field of view and minimal distortion.

The L-BCX260's geometry is meticulously crafted, with a thickness at the edge of 3.5 mm and a center thickness of 6.2 mm. This ensures robustness while maintaining high optical performance. The lens's radii of curvature, R1 and R2, are 515.74 mm and -515.74 mm respectively, contributing to its double-convex shape.

The lens is made from n-BK7 Schott, a high-grade optical glass known for its excellent optical properties and durability. This material is particularly suitable for use in the visible spectrum, with a wavelength of 587.6 nm.

Notably, this lens is uncoated. While coatings can enhance certain optical properties, such as reducing reflective losses or protecting the lens surface, an uncoated lens can be advantageous in certain applications where such enhancements are not required or desirable.