Knight Optical (USA) LLC

Knight Optical can offer you Stock and Custom Fresnel Lenses, for use within Retinal Imagingin a range of materials such as PMMA Acrylic and Borosilicate.

Our Fresnel Lenses consist of a flat surface with interspace concentric steps whereby each step corresponds to the surface of a conventional lenses. PMMA Acrylic is a preferred material type used for retinal imagin... Read more...

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