Engineers create first flat telescope lens that can capture color while detecting light from faraway stars - Phys.org

For centuries, lenses have worked the same way: curved glass or plastic bending light to bring images into focus. But traditional lenses have a major drawback—the more powerful they need to be, the buFor centuries, lenses have worked the same way: curved glass or plastic bending light to bring images into focus. But traditional lenses have a major drawbackthe more powerful they need to be, the bu…