49-555 4.00 mm Dia. Sapphire Half-Ball Lenses Uncoated

The 49-555 is a 4.00 mm diameter Sapphire Half-Ball Lens, uncoated, available from Edmund Optics. This lens, designed for use in optical systems, boasts a circular base shape and a half-ball geometry, making it suitable for a variety of applications.

The lens's geometry includes a diameter of 4.00 mm, a thickness of 2.00 mm, and an inner radius of 0.00 mm. The outer radius is also 0.00 mm, indicating a uniform curvature. The lens is made from Sapphire, specifically identified as al2o3 mal-1972-n-o in the material database.

The wavelength for this lens is 587.6 nm, which is in the visible light spectrum. This wavelength corresponds to the color yellow in the standard rainbow sequence.

Notably, this lens is uncoated. Coatings are often applied to lenses to enhance their performance by reducing reflections, increasing transmission, or adding specific optical properties. However, in this case, the lens is left in its natural state, which may be desirable for certain applications where the unaltered optical properties of Sapphire are required.

The lens is currently in stock and can be purchased directly from the vendor's website, with the provided weblink offering a direct path to the product page.