1. Autofocus System

    Autofocus System

    An autofocus apparatus is capable of detecting the position of a sample on a microscope. The sample may consist of a specimen mounted between a microscope slide and coverslip or specimens within a well plate. The device tracks the position of a sample by identifying refractive index boundaries through Fresnel reflections. A change in refractive index can correspond to the top and bottom of a coverslip, the top of a slide, the bottom of a well plate or the bottom of a well within a well plate. Using optical coherence tomography (OCT) these reflections are used to form a depth ...

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