A phoropter is an instrument comprised of cylinders, prisms, and lenses that measures the eye’s refractive error to help determine and eye prescription. Phoroptors ...
Abstract: With the high angle measurement precision, theodolite has been widely used in Spacecraft Assembly alignment. However, the use of theodolite is connected with manual operation and judgment of ...
Abstract: We designed a metalens array for collimating light emitted by micro-LED display in Augmented Reality (AR) Near-eye display system. The metalens array realizes transmission efficiency of up ...
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