Light guide element, image display device, and sensing apparatus

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12222553
APP PUB NO 20210311259A1
SERIAL NO

17344181

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Importance

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Abstract

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Provided are a light guide element in which incidence light can be emitted with high use efficiency and a wide FOV can be obtained for use in AR glasses, and an image display device and a sensing apparatus that include the light guide element. The light guide element includes a light guide plate and first to third diffraction elements, in which the first diffraction element diffracts incidence light in two or more different directions to be incident into the light guide plate, the second diffraction element includes a plurality of diffraction elements that diffract the light to the third diffraction element, the third diffraction element emits the light from the light guide plate, and at least one of the first diffraction element or the third diffraction element has a liquid crystal alignment pattern in which a direction of an optical axis derived from the liquid crystal compound changes while continuously rotating in at least one in-plane direction.

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Patent Owner(s)

  • FUJIFILM CORPORATION

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Saitoh, Yukito Minami-ashigara, JP 202 944
Sasata, Katsumi Minami-ashigara, JP 67 133
Sato, Hiroshi Minami-ashigara, JP 974 10580

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