Introduction to Nonimaging Optics covers the theoretical foundations and design methods of nonimaging optics, as well as key concepts from related fields. This fully updated, revised, and expanded Second Edition: Features a new and intuitive introduction with a basic description of the advantages of nonimaging opticsAdds new chapters on wavefronts for a prescribed output (irradiance or intensity), infinitesimal etendue optics (generalization of the aplanatic optics), and Koehler optics and color mixingIncorporates new material on the simultaneous multiple surface (SMS) design method in 3-D, integral invariants, and etendue 2-DContains 21 chapters, 24 fully worked and several other examples, and 1,000+ illustrations, including photos of real devicesAddresses applications ranging from solar energy concentration to illumination engineeringIntroduction to Nonimaging Optics, Second Edition invites newcomers to explore the growing field of nonimaging optics, while providing seasoned veterans with an extensive reference book.