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    • 9. 发明授权
    • Electronic devices with a solar cell
    • 具有太阳能电池的电子设备
    • US5886954A
    • 1999-03-23
    • US128561
    • 1998-08-03
    • Yoshinori AsamiTomoo KasuoHaruo KajitaniAkio KurosuHaruo Ono
    • Yoshinori AsamiTomoo KasuoHaruo KajitaniAkio KurosuHaruo Ono
    • G04B19/30G04C3/00G04C10/02G04G9/00
    • G04G9/0041G04B19/30G04C10/02G04C3/001
    • An electronic device comprising a solar cell, a secondary battery charged by an output from the solar cell, an illumination detector for detecting the brightness of the environment of the solar cell based on the output from the solar cell, a display unit, an electroluminescence (EL) element for illumining the display unit, an attitude detector for detecting an attitude of the electronic device, a driver for driving the EL element on the basis of the attitude of the electronic device detected by the attitude detector and the result of the detection by the illumination detector. Only when the illumination detector detects that the environment of the solar cell is dark, and the attitude detector detects that the electronic device takes a specified attitude, the EL element is turned on. Otherwise, the illuminator is not turned on. Thus, wasteful power consumption is suppressed to prolong the solar cell's service life.
    • 一种电子设备,包括太阳能电池,由太阳能电池的输出充电的二次电池,基于太阳能电池的输出来检测太阳能电池的环境的亮度的照明检测器,显示单元,电致发光( EL)元件,用于检测电子设备的姿态的姿态检测器,用于基于由姿态检测器检测到的电子设备的姿势来驱动EL元件的驱动器,以及通过由 照明检测器。 只有当照明检测器检测到太阳能电池的环境较暗时,并且姿态检测器检测到电子设备采取指定的姿态时,EL元件才被接通。 否则,照明器未打开。 因此,抑制浪费的功率消耗以延长太阳能电池的使用寿命。