43-709 1.50 mm Dia. N-BK7 Ball Lenses Uncoated

The 43-709 is a 1.50 mm diameter Ball Lens made from N-BK7 glass, a popular material in the optical industry due to its excellent optical properties. This lens, sourced from Edmund Optics, is uncoated, meaning it does not have any additional layers to enhance or alter its optical performance.

The Ball Lens, also known as a spherical lens, is a simple lens with spherical surfaces on both sides. This particular model has a base shape of a circle, which is typical for Ball Lenses. The geometry of the lens includes a diameter of 1.50 mm, with no inner or outer radius specified, indicating a symmetrical spherical shape.

The lens is designed to operate at a wavelength of 587.6 nm, which is in the visible light spectrum. This makes it suitable for applications that involve visible light, such as imaging, illumination, and beam shaping.

The N-BK7 material, also known as BK7, is a borosilicate crown glass with a refractive index of 1.5168 at 587.6 nm. It is known for its excellent homogeneity, low optical dispersion, and high chemical resistance. This makes it an ideal choice for various optical applications, including laser systems, beam delivery, and imaging systems.

Please note that the lens is uncoated, which means it does not have any anti-reflective coating or other surface treatments. This may result in unwanted reflections, which could be a consideration for certain applications. However, the uncoated nature of the lens also means it is more cost-effective and simpler to manufacture.