EssilorLuxottica has filed a patent for a phoropter, a device used to test an individual’s eyes when observing a target. The phoropter includes two optical units for each eye, a partially reflecting ...
Whether in photosynthesis or in a photovoltaic system: if you want to use light efficiently, you have to absorb it as completely as possible. However, this is difficult if the absorption is to take ...
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