👉 In physics, a deuterocone is a type of optical lens that consists of two spherical mirrors and one transparent aperture. The name "deuterocone" comes from the fact that it has a double cone shape, similar to the shape of a sunflower or a pea. The term "deuterocone" refers to the optical properties of these lenses. They are designed to focus light rays in two directions (parallel and perpendicular) onto a single point, which is called the "focus