Antifogging device and endoscope device

    公开(公告)号:US10398297B2

    公开(公告)日:2019-09-03

    申请号:US15446445

    申请日:2017-03-01

    Abstract: An antifogging device includes: an optical system having one or a plurality of optical members including at least an objective lens; a hollow casing in which the optical system is stored; a heater configured to generate heat according to supplied power to heat a hollow space in the casing; a temperature sensor configured to detect temperature of the hollow space; a temperature controller configured to estimate temperature difference between the temperature detected by the temperature sensor and temperature of the optical member, based on a power value of the supplied power; and an overall controller configured to control the heater based on the temperature difference estimated by the temperature controller.

    Lens frame unit and endoscope
    5.
    发明授权
    Lens frame unit and endoscope 有权
    镜头框架单元和内窥镜

    公开(公告)号:US09532707B2

    公开(公告)日:2017-01-03

    申请号:US14247465

    申请日:2014-04-08

    Inventor: Yuta Sugiyama

    Abstract: A lens frame unit includes a lens frame body that houses an optical member, a heat transfer unit that covers at least part of the lens frame body, a heat-generating unit, a temperature measurement unit that measures temperature and a same single electrical wiring board on which the heat-generating unit and the temperature measurement unit are mounted. The heat-generating unit and the temperature measurement unit are arranged on the electrical wiring board so as to be separated from each other, and the electrical wiring board is disposed such that the heat-generating unit and the temperature measurement unit are in contact with the heat transfer unit. Thermal resistance between closest positions of the heat-generating unit and the temperature measurement unit is greater than thermal resistance between the heat-generating unit and the heat transfer unit, and between the temperature measurement unit and the heat transfer unit.

    Abstract translation: 透镜框单元包括容纳光学构件的透镜框体,覆盖透镜框体的至少一部分的传热单元,发热单元,测量温度的温度测量单元和相同的单个电气布线板 其上安装有发热单元和温度测量单元。 发热单元和温度测量单元被布置在电气布线板上以彼此分离,并且电气布线板被布置成使得发热单元和温度测量单元与 传热单元。 发热单元的最近位置和温度测量单元之间的热阻大于发热单元和传热单元之间的热阻,以及温度测量单元和传热单元之间的热阻。

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