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    • 6. 发明授权
    • Lighting device for vehicle
    • 车辆照明装置
    • US07105945B2
    • 2006-09-12
    • US11040286
    • 2005-01-21
    • Fuminori ShiotsuMasayasu ItoToshiyuki Tsuchiya
    • Fuminori ShiotsuMasayasu ItoToshiyuki Tsuchiya
    • B60L1/14B60Q1/14
    • H05B33/0815Y10T307/685
    • A lighting device for a vehicle comprises: a plurality of light source sections connected in parallel with each other; and a transformer for supplying an electric power to the plurality of light source sections. The transformer includes a primary coil and a plurality of secondary coils provided corresponding to the plurality of light source sections, for respectively supplying electric power to the corresponding light source sections. One end of each light source section is grounded and a semiconductor light emitting element is provided between one end and the other end of the light source section. The lighting device further comprises: a voltage detecting section for detecting voltages at the other ends of the plurality of light sources; and an output control section for controlling an electric current outputted from the transformer according to the voltage detected by the voltage detecting section.
    • 一种用于车辆的照明装置,包括:彼此并联连接的多个光源部; 以及用于向所述多个光源部提供电力的变压器。 变压器包括初级线圈和对应于多个光源部分设置的用于分别向对应的光源部分供电的多个次级线圈。 各光源部的一端接地,在光源部的一端与另一端之间设置有半导体发光元件。 照明装置还包括:电压检测部,用于检测多个光源的另一端的电压; 以及输出控制部分,用于根据由电压检测部分检测到的电压来控制从变压器输出的电流。
    • 7. 发明授权
    • Wavelength division multiplex bothway optical communication system
    • 波分复用双向光通信系统
    • US5448390A
    • 1995-09-05
    • US181089
    • 1994-01-13
    • Toshiyuki TsuchiyaIkutaro KobayashiNobuyuki Tokura
    • Toshiyuki TsuchiyaIkutaro KobayashiNobuyuki Tokura
    • H04J14/02
    • H04J14/02
    • Bothway optical communication is carried out through a wavelength division multiplex system between two terminal stations (11a, 12a), each having a two-beam interference type filter (15) coupled with an optical cable (10) for multiplexing and/or de-multiplexing transmitted light and received light. The filter (15) has passbands and attenuation bands having periodic characteristics for the wavelength in the communication wavelength band. The wavelength of the transmitted light is essentially the same as the wavelength of the received light in each terminal station, with a small offset of the two wavelengths less than 5 nm. The oscillation wavelength of the laser (21) for transmission is adjusted so that it coincides with the passband of the filter, which doubles as a reference wavelength of the oscillation wavelength of the laser. Preferably, the two-beam interference type filter (15) is a Mach Zehnder type asymmetrical interferometer having a pair of directional couplers (F1, F2) connected to each other through a pair of optical fibers (f1, f2) so that the period of the passbands and/or the attenuation bands of the filter (15) is adjustable.
    • 两路光通信通过两个终端站(11a,12a)之间的波分复用系统进行,每个终端站(11a,12a)具有与用于复用和/或解复用的光缆(10)耦合的双波束干扰型滤波器(15) 透射光并接收光。 滤波器(15)具有对通信波长带中的波长具有周期特性的通带和衰减频带。 透射光的波长基本上与每个终端中的接收光的波长相同,两个波长的偏移小于5nm。 调整用于透射的激光器(21)的振荡波长,使得其与滤波器的通带一致,该滤波器的通带加倍作为激光器的振荡波长的参考波长。 优选地,双光束干涉型滤光器(15)是具有通过一对光纤(f1,f2)彼此连接的一对定向耦合器(F1,F2)的马赫尚德型不对称干涉仪, 过滤器(15)的通带和/或衰减带可调。