This is a Si-px-25.4-25.4 25.4 mm Dia. Silicon Plano-Convex Lens, sourced from Alkor Technologies. The lens is uncoated and features a spherical shape, with a base shape of a circle. It is designed for use with a wavelength of 10600 nm.
The lens has a diameter of 25.4 mm and a thickness at the edge of 2 mm. The thickness at the center is 3.4 mm, and the effective focal length (EFL) is also 25.4 mm. The inner radius of the lens is 0, and the outer radius is also 0. The lens is made of silicon sal vil 1957.
The lens is a Plano-Convex type, which means one side is flat (plano) and the other side is curved (convex). This design allows for a wide range of applications, including focusing and collimating light. The uncoated feature of the lens means it does not have any additional layers to enhance its optical properties, but it can be a good choice for applications where cost and simplicity are priorities.
The lens is currently in stock and can be purchased through the vendor's website. For more information, please refer to the provided weblink.