 Wollaston landscape lens

The Wollaston landscape lens, also known simply as a Wollaston lens, is a type of optical lens that has a specific design intended for use in photography and microscopy. It was developed by the British scientist William Hyde Wollaston in the early 19th century. The lens consists of two prisms that are typically made of glass and are arranged in such a way as to combine the optical properties of a lens with the dispersion properties of a prism.