Design and use of mass-produced aspheres at Kodak.
Aspheric surfaces provide both performance and cost advantages for large-quantity lens production. Aspheres are reviewed from their early application in viewfinders to their use in camera lenses and, most recently, to applications in laser focusing lenses. There are restrictions imposed on the shape or strength of aspheres by either the manufacturing processes or testing techniques that the designer must recognize.
Ruben
P L
PL
Eastman Kodak Company, Rochester, New York 14650, USA.