title: Selection of optical glasses in superachromats.
abstract: A method for the choice of glasses for a superachromatic system consisting of four lenses in contact with each other is developed. The apparatus required for the application of the method, namely, a space representation of three optical constants of the glasses, is described, and the method is applied to the special case of the selection of glasses for a three-lens superachromat.
authors.forename: N V
authors.initials: NV
authors.lastname: Lessing