From Event: SPIE Optical Engineering + Applications, 2016
Precision glass molding (PGM) enables high-performance, low-cost lens designs through aspheric shapes and a broad array of moldable glass types. While these benefits bring a high potential value, the design of PGM lenses must be skillfully approached to balance manufacturability and cost considerations. Different types of mold tooling and processes used by PGM suppliers can also lead to confusion regarding the manufacturing parameters and design rules that should be considered. The authors discuss the various factors that can affect manufacturability and cost of lenses made to PGM standards, and present a case study to demonstrate the trade-offs in performance.
Alan Symmons, Jeremy Huddleston, and Dennis Knowles, "Design for manufacturability and optical performance trade-offs using precision glass molded aspheric lenses," Proc. SPIE 9949, Polymer Optics and Molded Glass Optics: Design, Fabrication, and Materials 2016, 994909 (Presented at SPIE Optical Engineering + Applications: August 29, 2016; Published: 27 September 2016); https://doi.org/10.1117/12.2238111.
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