43-646 5.00 mm Dia. Sapphire Ball Lenses Uncoated

The 43-646 is a 5.00 mm diameter ball lens, uncoated and sourced from Edmund Optics. This lens is a circular-shaped optical element designed for general-purpose use in various applications. The ball lens, also known as a spherical lens, has a base shape that focuses or diverges light evenly in all directions due to its symmetrical curvature.

The lens's geometry includes a diameter of 5.00 mm, with no inner or outer radius specified, indicating a uniform curvature throughout the lens. The material ID, al2o3 mal-1972-n-o, corresponds to sapphire, a high-quality, crystalline form of aluminum oxide (Al2O3). Sapphire is valued for its exceptional hardness, second only to diamond, making it highly resistant to scratching and abrasion. Additionally, sapphire exhibits excellent optical clarity, low auto-fluorescence, and a wide transmission range, making it an ideal material for optical components.

The wavelength specified for this lens is 587.6 nm, which falls within the visible light spectrum. This wavelength corresponds to the color yellow and is often used in applications where color discrimination and precision are essential.

This particular lens comes uncoated, meaning it does not have any additional layers applied to its surface to modify its optical properties. While coatings can enhance performance by reducing surface reflections, increasing transmission, or adding protective layers, uncoated lenses offer simplicity and cost-effectiveness.