These lenses are either convex - converging light, which magnifies an object, or concave, where light diverges making an object smaller. However, this new lens is 40 nm thin on a flat glass surface.

In a recent review article in Light| Science & Applications, researchers provided a comprehensive overview of non-convex optimization ... the wavefront of an object using interference and diffraction.

Well, it’s actually a careful design ... object may be distorted. The shape of the mirror also makes a difference in our perception. In the U.S., passenger-side mirrors are convex (meaning ...

This talk presents the latest developments on convex liftings, a tool belonging to the class of lift-and-project techniques with various applications in control engineering. According to the latest ...