L-BCX028 6.4 mm Dia. Double-Convex Lens; EFL=26mm Uncoated

The L-BCX028 is a 6.4 mm diameter double-convex lens with an effective focal length (EFL) of 26mm, sourced from the renowned optical vendor, Ross Optical. This lens, designed for general-purpose use, is uncoated, offering a simple yet versatile optical solution.

The lens's geometry is characterized by its base shape, which is circular, and its spherical design. The diameter of the lens is 6.4 mm, with a center thickness of 1 mm and an edge thickness of 0.6 mm. The radii of curvature for the first and second surfaces are 26.7 mm and -26.7 mm, respectively. The inner and outer radii are both zero, indicating a symmetrical lens design.

The L-BCX028 is made from n-BK7 Schott, a popular optical glass due to its excellent optical properties and wide transparency range. It is designed to operate at a wavelength of 587.6 nm. The lens's coating is listed as empty, indicating that it is uncoated. This may result in a higher risk of surface damage and lower light transmission compared to coated lenses, but it can also provide a cost-effective solution for many applications.

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