43-641 1.50 mm Dia. Ruby Doped Sapphire Ball Lenses Uncoated

The 43-641 is a 1.50 mm diameter Ruby Doped Sapphire Ball Lens, uncoated, available from Edmund Optics. This lens is a type of Ball Lens, characterized by its circular base shape and spherical geometry. The lens has a diameter of 1.50 mm, with both the inner and outer radii being zero, indicating a perfect sphere.

The lens is made of Sapphire, specifically Al2O3, which is known for its excellent optical properties, including high transparency and resistance to scratching and temperature changes. The Ruby doping enhances the lens's performance in specific wavelength ranges. In this case, the lens is optimized for a wavelength of 587.6 nm.

Notably, this lens is uncoated. While coatings can enhance a lens's performance by reducing reflections, increasing transmission, or providing other benefits, an uncoated lens can be advantageous in certain applications. For instance, uncoated lenses can be more cost-effective and are often more resistant to environmental contaminants.

The lens's vendor, Edmund Optics, is a reputable source for optical components, ensuring quality and reliability. The lens's web link indicates that it is currently in stock, making it readily available for immediate use.