zone) 夫琅禾费距離(Fraunhofer distance) Goodman, Joseph. Introduction To FourierOptics 3rd, illustrated. Roberts and Company Publishers. 2005: pp. 85–86. ISBN 9780974707723
Verma. Wave Optics. Discovery Publishing House. 1 January 2006. ISBN 978-81-8356-114-3. Sumner P. Davis; Mark C. Abrams; James W. Brault. Fourier Transform
reference to an opaque shield w/ aperture. Goodman, Joseph. Introduction to FourierOptics. Englewood, Co: Roberts & Company. 2005. ISBN 0-9747077-2-4. Hecht