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42 条记录 (耗时 0.024 秒)

    Luminosity control system employing semiconductor lasers
    12.
    发明授权
    Luminosity control system employing semiconductor lasers 失效
    使用半导体激光器的荧光灯控制系统

    公开(公告)号：US4038610A

    公开(公告)日：1977-07-26

    申请号：US514286

    申请日：1974-10-11

    申请人： Jun-ichi Nishizawa ,  Ichiemon Sasaki ,  Kaoru Takahashi

    发明人： Jun-ichi Nishizawa ,  Ichiemon Sasaki ,  Kaoru Takahashi

    IPC分类号： H01S5/06 ,  H01S5/40 ,  H01S5/50 ,  H01S3/10

    CPC分类号： H01S5/50 ,  H01S5/4006 ,  H01S5/0608

    摘要： A luminosity control device comprises a first semiconductor laser operable in a spontaneous mode to emit noncoherent light and in a laser mode different from its inherent laser mode to emit coherent light. The first semiconductor laser is electrically biased into its spontaneous laser mode. A second semiconductor laser is operated in a laser mode to emit coherent light which is applied to the first semiconductor laser to optically bias the first semiconductor laser into the laser mode of the second semiconductor laser. The second semiconductor laser is electrically biased into operating in its laser mode and the optical coupling between the two semiconductor lasers is such that the coherent light output from the first semiconductor laser varies exponentially with respect to the electrical energy input into the second semiconductor laser.

    Image reading apparatus
    13.
    发明授权
    Image reading apparatus 有权
    图像读取装置

    公开(公告)号：US08837059B2

    公开(公告)日：2014-09-16

    申请号：US13357278

    申请日：2012-01-24

    申请人： Kaoru Takahashi

    发明人： Kaoru Takahashi

    IPC分类号： G02B17/00 ,  G02B26/08 ,  G02B26/10 ,  G02B5/04 ,  G03G15/00

    CPC分类号： G03G15/605 ,  G02B5/04 ,  G03G2215/00185 ,  G03G2215/00189 ,  G03G2215/00194

    摘要： According to an aspect of the invention, an image reading apparatus includes a substrate, light emitting elements, a catoptrics system, an imaging lens, a lens position fixing unit, and a reflective surface fixing unit. The plurality of light emitting elements is arranged on the substrate in a line and emits light to a surface of an object to be irradiated. The imaging element is disposed on the substrate and receives light reflected from the surface of the object. The first optical system guides the light emitted from the light emitting elements to the surface of the object. The second optical system guides the light reflected from the surface to the imaging element. The second optical system includes a catoptrics system including a first reflective surface and a second reflective surface so that light reflected from the first reflective surface is reflected to the substrate, and an imaging lens.

    摘要翻译： 根据本发明的一个方面，图像读取装置包括基板，发光元件，折射系统，成像透镜，透镜位置固定单元和反射表面固定单元。 多个发光元件以一行的方式配置在基板上，并向被照射物体的表面发光。 成像元件设置在基板上并接收从物体的表面反射的光。 第一光学系统将从发光元件发射的光引导到物体的表面。 第二光学系统将从表面反射的光引导到成像元件。 第二光学系统包括包括第一反射表面和第二反射表面的折射系统，使得从第一反射表面反射的光被反射到基板和成像透镜。

    Fire alarm system
    18.
    发明授权
    Fire alarm system 失效
    火警系统

    公开(公告)号：US5650762A

    公开(公告)日：1997-07-22

    申请号：US409154

    申请日：1995-03-23

    申请人： Kaoru Takahashi ,  Yukihiko Usami

    发明人： Kaoru Takahashi ,  Yukihiko Usami

    IPC分类号： G08B25/00 ,  G08B17/00 ,  G08B29/06 ,  G08B26/00

    CPC分类号： G08B17/00

    摘要： A transmitter for use with a fire alarm system controls the monitoring of devices to be controlled based on a control command transmitted from a receiving section such as a fire receiver. With this transmitter, even if there is a short circuit in control lines for connecting the transmitter and the devices, it is not necessary to exchange fuses, and it is also possible to avoid the waste of power consumption which would otherwise incur during the actuation operation of the device(s). When the short circuit is recovered, the transmitter is able to correctly actuate the device(s). A small reverse current is permitted to flow in the control lines so as to enable the monitoring of a short circuit in the control lines by the transmitter. When the transmitter receives an actuation command from the receiving section, and if a short circuit in the control lines is detected, the transmitter goes into a standby state in which it holds an actuation signal for actuating the device(s) from being output to an actuating section. When the short circuit is recovered, the transmitter outputs the actuation signal to the actuating section.

    摘要翻译： 与火灾报警系统一起使用的发射机根据从诸如火灾接收器的接收部分传送的控制命令来控制要控制的设备的监视。 对于该发送器，即使在用于连接发射器和设备的控制线路中存在短路，也不需要更换保险丝，并且还可以避免在致动操作期间将产生的功耗的浪费 的设备。 当短路恢复时，变送器能够正确地启动设备。 允许小的反向电流在控制线中流动，以便能够通过发射器监视控制线路中的短路。 当发射机接收到来自接收部分的致动命令时，并且如果检测到控制线路中的短路，则发射机进入待机状态，在该状态下，其保持用于致动设备的致动信号以输出到 致动部分。 当短路恢复时，发射器将致动信号输出到致动部分。

    Line interruption supervisory device for a fire alarm system
    19.
    发明授权
    Line interruption supervisory device for a fire alarm system 失效
    用于火灾报警系统的线路中断监控设备

    公开(公告)号：US5086293A

    公开(公告)日：1992-02-04

    申请号：US542050

    申请日：1990-06-22

    申请人： Kaoru Takahashi ,  Akio Tsumuji ,  Ryuji Shutoku

    发明人： Kaoru Takahashi ,  Akio Tsumuji ,  Ryuji Shutoku

    IPC分类号： G08B17/00 ,  G08B29/06

    CPC分类号： G08B29/06

    摘要： A line interruption supervisory device for a fire alarm system is capable of reliably carrying out the line supervision even if the line length is long and/or there is a large number of connected fire detectors. To this end, a terminating capacitor is connected across the terminal of a pair of power/signal lines to which fire detectors are connected. A memory first stores the voltage available on the power/signal lines when the line supervision is requested, immediately followed by the interruption by a cut-off circuit of the power supply to a pair of power/signal lines, and further followed by a comparison of the voltage available on the power/signal lines before the power supply interruption with a line voltage available after a lapse of a predetermined time from the power supply interruption by a line interruption discriminating circuit to determine, according to any difference between these voltages, whether there is an open power/signal line.