Sending a mission to the solar gravitational lens (SGL) is the most effective way of actually directly imaging a potentially ...

When developing an inspection system for PV (photovoltaic) solar-wafer, solar-cell, and FPD (flat-panel display) products, developers need to choose the type of camera lens that is most appropriate ...

An ultra-light Fresnel lens harnesses sunlight with record efficiency, reducing the weight and cost of solar panels launched into space. Researchers in the US have developed a type of lens that ...

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