Luneburg lens
A Luneburg lens (original German Lüneburg-Linse) is a spherically symmetric gradient-index lens. A typical Luneburg lens's refractive index n decreases radially from the center to the outer surface. They can be made for use with electromagnetic radiation from visible light to radio waves.
Luneburg lens - Wikipedia Jump to content From Wikipedia, the free encyclopedia Spherically symmetric gradient-index lens Cross-section of the standard Luneburg lens, with blue shading proportional to the refractive index A Luneburg lens (original German L ü neburg-Linse ) is a spherically symmetric gradient-index lens . A typical Luneburg lens's refractive index n decreases radially from the center to the outer surface. They can be made for use with electromagnetic radiation from visible light to radio waves . For certain index profiles, the lens will form perfect geometrical images of two gi
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