The 46-226 is a 0.79 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 0.79 mm, with no inner or outer radius specified, indicating a symmetrical spherical design.
The lens is made from Ruby Doped Sapphire, identified in the item data as al2o3 mal-1972-n-o. This material is a type of sapphire, a corundum crystal that has been doped with ruby, a form of the mineral corundum colored red by the presence of the element chromium. Sapphire is known for its hardness, durability, and resistance to scratching, making it an ideal material for optical applications. The ruby doping enhances the lens's performance in specific wavelengths, in this case, 587.6 nm.
The lens is uncoated, meaning it does not have any additional layers applied to its surface to alter its optical properties. This can be advantageous in certain applications where a natural lens surface is desired, or where the lens's performance does not require additional coatings.
According to the item data, the lens is currently in stock and can be purchased directly from the vendor's website. The weblink provided leads to a product page with more information about the lens, including pricing and availability.