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    • 42. 发明申请
    • Laser oscillator
    • 激光振荡器
    • US20050201430A1
    • 2005-09-15
    • US10432818
    • 2002-03-28
    • Toshiki KoshimaeToshiaki Watanabe
    • Toshiki KoshimaeToshiaki Watanabe
    • H01S3/00H01S3/094H01S3/131H01S3/13
    • H01S3/1312H01S3/0912
    • A laser oscillator that, in accordance with a laser output instruction value or a current instruction value that is input, excites a laser medium and obtains a desired laser output comprises: reference waveform generation unit for employing the laser output instruction value or the current instruction value to generate a laser output waveform and a current waveform, which are references; a first comparison unit for obtaining, as a current monitor value, a current value used to excite the laser medium, and for comparing the current value with the current wave form generated by the reference wave form generation unit; and a second comparison unit for fetching, as a laser output monitor value, the value of a laser that is output by exciting the laser medium, and for comparing the value for the laser with the laser output waveform generated by the reference waveform generation unit, wherein an abnormality is detected.
    • 激光振荡器,其根据激光输出指令值或输入的当前指令值激励激光介质并获得期望的激光输出包括:用于采用激光输出指令值或当前指令值的参考波形生成单元 产生作为参考的激光输出波形和电流波形; 第一比较单元,用于获得用于激励激光介质的当前值作为当前监视值,并将当前值与由参考波形生成单元生成的当前波形进行比较; 以及第二比较单元,用于将通过激励激光介质输出的激光的值作为激光输出监视值进行获取,并且用于将激光的值与由参考波形生成单元生成的激光输出波形进行比较, 其中检测到异常。
    • 43. 发明授权
    • Ink jet head and ink jet recording apparatus
    • 喷墨头和喷墨记录装置
    • US06932462B2
    • 2005-08-23
    • US10612563
    • 2003-07-02
    • Toshiaki Watanabe
    • Toshiaki Watanabe
    • B41J2/045B41J2/055B41J2/14B41J2/175B41J2/05
    • B41J2/14209B41J2/17513B41J2002/14306B41J2002/14403B41J2002/14419
    • An ink jet head has grooves, an ink flow path for transporting ink from an ink storing member to the grooves via an ink chamber, and a filter disposed in the ink flow path. The ink flow path has a communicating passage connected to the ink storing member, an ink introduction passage connected to the communicating passage for transporting ink along a flow direction generally perpendicular to a longitudinal direction of each of the grooves, an ink reservoir connected to the ink introduction passage and in which the filter is disposed, and an ink supply passage connected to the ink reservoir for supplying ink to the ink chamber. The ink supply passage is inclined downwardly toward the ink chamber relative to a horizontal line disposed generally parallel to the flow direction of ink in the ink introduction passage.
    • 喷墨头具有凹槽,用于将墨水从墨水容纳部件经由墨水室输送到凹槽的墨水流动通道和设置在墨水流路中的过滤器。 墨水流路具有连接到墨水存储部件的连通通道,连接到连通通道的墨水引入通道,用于沿着大致垂直于每个凹槽的纵向方向的流动方向输送墨水;墨水容器,连接到墨水 导入通道,并且其中设置有过滤器,以及连接到墨水容器的供墨通道,用于向墨水室供应墨水。 供墨通道相对于大致平行于墨水引入通道中的墨水流动方向设置的水平线向墨水腔向下倾斜。
    • 44. 发明授权
    • Solid-state laser device
    • 固态激光器件
    • US06931048B2
    • 2005-08-16
    • US10048233
    • 2000-12-27
    • Toshiki KoshimaeToshiaki Watanabe
    • Toshiki KoshimaeToshiaki Watanabe
    • H01S3/0941H01S3/102H01S5/068H01S5/40H01S3/091
    • H01S5/06808H01S3/0941H01S3/1022H01S5/06825H01S5/4031
    • According to the present invention, there is provided a solid-state laser diode comprising: a laser diode for exciting a solid laser medium; a constant current source for supplying a constant current to the laser diode; voltage measurement unit for measuring a voltage at both ends of the laser diode; and abnormality detection unit for detecting an abnormality at the laser diode based on an output of the voltage measurement unit. Whereby a photodiode need not be arranged on the periphery of the solid laser medium and the laser diode, and an abnormality at the laser diode can be detected without increasing the size of the device and complicating the device and without deteriorating the laser emission efficiency.
    • 根据本发明,提供一种固态激光二极管,包括:用于激发固体激光介质的激光二极管; 用于向激光二极管提供恒定电流的恒流源; 电压测量单元,用于测量激光二极管两端的电压; 以及异常检测单元,用于基于电压测量单元的输出来检测激光二极管的异常。 由此,不需要在固体激光介质和激光二极管的周边配置光电二极管,并且可以在不增加器件尺寸并且使器件复杂化并且不降低激光器发射效率的情况下检测激光二极管的异常。