OPTICAL ELEMENT
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United States of America Patent
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Sep 5, 2016
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Mar 6, 2014
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Abstract
Conventional optical elements cannot emit circularly polarized light beams obtained by beam separation in the same direction. An optical element includes a polarization splitter element configured to split incoming light into a first circularly polarized light beam and a second circularly polarized light beam that has different handedness than the first circularly polarized light beam, where the polarization splitter element is configured to reflect the first circularly polarized light beam and allow the second circularly polarized light beam to transmit, and a reflector element configured to reflect the first circularly polarized light beam that has been reflected by the polarization splitter element, to proceed in a direction in which the second circularly polarized light beam is allowed to transmit.
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