This is a Plano-Convex lens from Holmarc Opto-Mechatronics, a leading vendor in the field of optical elements. The lens, identified as HO-PXL12.5-1.6, has a diameter of 12.5mm and a thickness at the edge of 2mm. The effective focal length (EFL) of this lens is 20mm, making it suitable for a wide range of optical applications.
The lens is made of N-BK7, a popular glass type in the optical industry, known for its excellent optical properties. The curvature of the lens is spherical, with a radius of curvature (R1) of 10.432mm for the convex side. The inner and outer radii are 0mm, indicating a plano surface on the other side.
The lens is uncoated, meaning it does not have any anti-reflective or other coatings. This may be suitable for applications where such coatings are not required or desirable.
According to the vendor's website, this lens is in stock, ensuring quick delivery for your optical projects. The website also provides further information and specifications, which can be accessed via the provided weblink.