Focusing DOEs (focusators): design and investigation

The paper consistently analyzes the development of physical and mathematical apparatus and technological basis for creating laser focusators - a key element of computer optics, which has largely determined the introduction of a new scientific direction and the formation of approaches used in it. We analyze the influence of the development of focusator design methods on the creation of other diffractive optical elements (DOEs). We give the examples of efficient use of focusators.