Observation device, observation unit, and observation method

    公开(公告)号:US11317794B2

    公开(公告)日:2022-05-03

    申请号:US16762678

    申请日:2018-11-08

    Abstract: A magnifying glass captures an image of a tooth by a plurality of cameras for observation. The plurality of cameras includes a narrow range camera capturing a narrow range image of the tooth and a wide range camera capturing a wide range image of the tooth. The magnifying glass includes a three-dimensional position calculator detecting a three-dimensional position of at least the tooth based on the wide range image; a blur correction processor correcting a blur of the narrow range image, based on a change in a three-dimensional positional relationship between the tooth, the three-dimensional position of which has been detected by the three-dimensional position detector, and the narrow range camera; and an image display portion displaying at least the narrow range image having the blur corrected.

    Three-dimensional scanner and probe

    公开(公告)号:US11060852B2

    公开(公告)日:2021-07-13

    申请号:US16340976

    申请日:2018-03-08

    Inventor: Keisuke Sorimoto

    Abstract: A three-dimensional scanner for obtaining shape information of an object body includes a light source unit, a varifocal unit, a reference unit, a light path length adjustment unit, an optical sensor, and a control unit. The varifocal unit is able to change a focal position, and both of light from the light source unit to the optical sensor via an object body and light from the light source unit to the optical sensor via the reference unit travel at least once. The control unit determines a condition of varifocal unit based on light has been reflected on reference unit and detected by a part of optical sensor, and calculates the shape information of the object body from light detected by the optical sensor using information of the condition of the varifocal unit that has been determined.

    OBSERVATION DEVICE, OBSERVATION UNIT, AND OBSERVATION METHOD

    公开(公告)号:US20210169318A1

    公开(公告)日:2021-06-10

    申请号:US16762678

    申请日:2018-11-08

    Abstract: A magnifying glass captures an image of a tooth by a plurality of cameras for observation. The plurality of cameras includes a narrow range camera capturing an image of the tooth in a narrow image capturing range and a wide range camera capturing an image of the tooth in a wide image capturing range. The magnifying glass includes a three-dimensional position calculator detecting a three-dimensional position of at least the tooth based on the wide range image captured by the wide range camera; a blur correction processor correcting a blur of the narrow range image captured by the narrow range camera, based on a change in a three-dimensional positional relationship between the tooth, the three-dimensional position of which has been detected by the three-dimensional position detector, and the narrow range camera; and an image display portion displaying at least the narrow range image having the blur corrected.

    THREE-DIMENSIONAL SCANNER AND PROBE
    9.
    发明申请

    公开(公告)号:US20190293414A1

    公开(公告)日:2019-09-26

    申请号:US16340976

    申请日:2018-03-08

    Inventor: Keisuke Sorimoto

    Abstract: A three-dimensional scanner for obtaining shape information of an object body includes a light source unit, a varifocal unit, a reference unit, a light path length adjustment unit, an optical sensor, and a control unit. The varifocal unit is able to change a focal position, and both of light from the light source unit to the optical sensor via an object body and light from the light source unit to the optical sensor via the reference unit travel at least once. The control unit determines a condition of varifocal unit based on light has been reflected on reference unit and detected by a part of optical sensor, and calculates the shape information of the object body from light detected by the optical sensor using information of the condition of the varifocal unit that has been determined.

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