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AssigneeNippon Electric Glass Co., Ltd.
InventorsMasaaki Kadomi, Hirokazu Tanaka, Masanori Wada, Takasi Akimoto
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An object of the present invention is to provide a liquid-crystal lens having excellent imaging performance. A liquid-crystal lens (1) according to the present invention includes a first liquid-crystal layer (11), a second liquid-crystal layer (12), a third liquid-crystal layer (13), and a fourth liquid-crystal layer (14) which are arranged in this order along an optical axis (C). The first liquid-crystal layer (11) and the second liquid-crystal layer (12) are 90° different in alignment direction from each other in a plane perpendicular to the optical axis (C). The first liquid-crystal layer (11) and the fourth liquid-crystal layer (14) are 180° different in alignment direction from each other in the plane perpendicular to the optical axis (C). The second liquid-crystal layer (12) and the third liquid-crystal layer (13) are 180° different in alignment direction from each other in the plane perpendicular to the optical axis (C).
A liquid-crystal lens comprising a first liquid-crystal layer, a second liquid-crystal layer, a third liquid-crystal layer, and a fourth liquid-crystal layer which are arranged in this order along an optical axis, wherein
A cell for a liquid-crystal lens, the cell being provided with a first interior space to be filled with liquid crystal, a second interior space to be filled with liquid crystal, a third interior space to be filled with liquid crystal, and a fourth interior space to be filled with liquid crystal, the first to fourth interior spaces being disposed in this order along one direction, the cell comprising:
Dependencies are inferred from the claim text.