47-270 5.00 mm Dia. N-BK7 Half-Ball Lenses Uncoated

The 47-270 is a 5.00 mm diameter N-BK7 Half-Ball Lens, uncoated, sourced from the renowned optical components vendor, Edmund Optics. This half-ball lens, also known as a meniscus lens, is a type of lens that has one spherical surface and one flat surface, designed to refract and focus light.

The lens is made of N-BK7, a type of borosilicate glass known for its excellent optical properties, including a high refractive index and low dispersion. This makes it an ideal material for various optical applications, particularly in the visible spectrum. The lens has a diameter of 5.00 mm and a thickness of 2.50 mm, with a radius of curvature of 2.50 mm for the spherical surface.

The lens is uncoated, meaning it does not have any additional layers applied to its surfaces to alter its optical properties. This can be beneficial in certain applications where the natural properties of the glass are desired, or where cost is a significant factor. However, it's important to note that uncoated lenses can be more susceptible to surface reflections and may not perform as well in high-light conditions or in applications where high transmission and low reflection are critical.

The lens is currently in stock and available for purchase through the Edmund Optics website, as indicated by the "weblink status" field in the item data. This information is valid as of the time of writing and may be subject to change.