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    • Alan Symmons

    Executive VP of Operations, LightPath Technologies

    Alan Symmons is executive VP of operations at LightPath Technologies (Orlando, FL).

    FIGURE 1. Numerous materials suitable for use in IR optics include chalcogenide glasses, semiconductors, water-soluble crystals, and others; the chalcogenides are shown in blue.
    Optics & Design

    Advances in Optical Systems: Chalcogenide’s place in the infrared optical materials spectrum

    Alan Symmons
    Nov. 1, 2018
    Many optical materials exist for designing IR optics; chalcogenide BD6 has some advantages when compared with legacy materials.
    FIGURE 1. Theoretical drop in index of refraction is shown for a moldable glass.
    Optics

    Aspheres: Precision glass molded aspheric lenses: Design for manufacturing

    Alan Symmons
    April 13, 2016
    Designing for manufacturability of precision glass molded aspheric lenses provides the lowest possible cost at the highest possible quality.
    (Courtesy of Edmund Optics)
    Complex aspheric surface profiles can greatly reduce or eliminate many aberrations in spherical-lens optical systems.
    Optics

    Laser Optics: Selecting the right aspheres for laser applications

    Gregg Fales
    June 1, 2015
    Manufacturing processes including CNC polishing, precision glass molding, or hybrid aspherizing are combined with inspection and testing techniques to integrate aspheres into ...