One of Kodak's newest products required a low-cost, reasonably well-corrected, f/2.5 fixed-focus lens. We decided to use a plastic/glass hybrid lens that utilized both diffractive and aspheric technologies. The resulting two-plastic, one-glass element design has superior resolution. Manufacturing studies have documented that the lens will achieve high first-time yields. In this paper we discuss not only the prescription and its high first-time yield, but also system veiling in glare, relative illumination, and other diffraction-linked artifacts as they relate to electronic image capture.
Martin L. Miller,
"Low-cost high-volume lens using diffractive technology", Proc. SPIE 3134, Optical Manufacturing and Testing II, (1 November 1997); doi: 10.1117/12.279129; https://doi.org/10.1117/12.279129