49-559 2.00 mm Dia. Ruby Doped Sapphire Half-Ball Lenses Uncoated

The 49-559 is a 2.00 mm diameter Ruby Doped Sapphire Half-Ball Lens, uncoated, sourced from the renowned optical vendor, Edmund Optics. This lens, with its unique half-ball shape and circular base, is a versatile component in various optical systems.

The lens's geometry is defined by a 2.00 mm diameter, 1.00 mm thickness, and a 1.00 mm inner radius. The outer radius is not specified, as it is a half-ball lens, meaning it has a flat surface on one side and a curved surface on the other. This geometry makes it ideal for applications requiring a combination of a flat and curved surface.

The lens is made from Ruby Doped Sapphire, identified by the Material ID "al2o3 mal-1972-n-o". This material is known for its excellent optical properties, making it suitable for applications in the visible spectrum, specifically at a wavelength of 587.6 nm.

Notably, this lens is uncoated. Coatings are often applied to lenses to enhance their optical properties, such as reducing reflection or increasing transmission. However, an uncoated lens can be advantageous in certain applications, such as when minimal interference with the incident light is desired.

The lens's current status is "in stock", according to the vendor's website link provided: "https://www.edmundoptics.com/p/20mm-diameter-ruby-half-ball-lens/10072/". This information indicates the availability of the lens for immediate purchase and use.