To correct certain visual distortions and aberrations, your projection lens may include a number of different design features. For example, an aspherical lens may be used to correct spherical ...

laser projection, slit and line detector array illumination, and cinemascope anamorphic lenses. Some of these applications will be discussed later. Although cylindrical lenses share some common traits ...

Rafael Gonzalez from Mexico's Tecnologico de Monterrey has come up with an almost comically dense equation that can be used to almost completely eliminate spherical aberration in optical lenses ...

and that’s the beauty of an anamorphic lens. They work by using ovular elements (although they usually contain spherical elements as well) to distort incoming light and squeeze the projection ...

which is made up of large-diameter spherical and aspherical elements to minimize image distortion and aberrations. The lens unit features a projection arm that can rotate by 90 degrees and a lens ...