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    • 24. 发明申请
    • HALOPHOSPHATE PHOSPHOR AND WHITE LIGHT-EMITTING DEVICE
    • 卤磷酸盐和白色发光装置
    • US20120286646A1
    • 2012-11-15
    • US13457164
    • 2012-04-26
    • Hiroaki SAKUTAKazuhiko KagawaYoshihito SatoTakatoshi SetoNaoto Kijima
    • Hiroaki SAKUTAKazuhiko KagawaYoshihito SatoTakatoshi SetoNaoto Kijima
    • H01L33/50
    • C09K11/7739H01L33/502H01L2924/0002Y02B20/181H01L2924/00
    • The present invention provides a blue (blue-green) phosphor that has sufficient emission intensity in the wavelength region around 490 nm and that has high emission luminance at a temperature region reached during LED operation. The present invention also provides a white light-emitting device that uses a high-luminance green phosphor having an emission peak wavelength of 535 nm or greater and that has improved bright blue reproducibility.A phosphor having a chemical composition of general formula [1] has sufficient emission intensity in a wavelength region around 490 nm, and a white light-emitting device that uses such a phosphor has improved bright blue reproducibility. (Sr, Ca)aBabEux(PO4)cXd  [1] (In general formula [1], X is Cl; c, d and x are numbers satisfying 2.7≦c≦3.3, 0.9≦d≦1.1 and 0.3≦x≦1.2; and a and b satisfy the conditions a+b=5−x and 0.12≦b/(a+b)≦0.4.)
    • 本发明提供一种蓝色(蓝绿色)荧光体,其在490nm左右的波长范围内具有足够的发光强度,并且在LED操作期间达到的温度区域具有高的发光亮度。 本发明还提供一种使用发光峰值波长为535nm以上并具有提高的蓝色再现性的高亮度绿色荧光体的白色发光装置。 具有通式[1]的化学组成的荧光体在490nm左右的波长区域具有足够的发光强度,并且使用这种荧光体的白色发光器件具有改善的亮蓝色重现性。 (Sr,Ca)aBabEux(PO4)cXd [1](通式[1]中,X为Cl; c,d和x为满足2.7≦̸ c≦̸ 3.3,0.9≦̸ d≦̸ 1.1和0.3& x和nlE; 1.2; a和b满足条件a + b = 5-x和0.12≦̸ b /(a + b)≦̸ 0.4。
    • 29. 发明授权
    • Toll collection system and its communication method
    • 收费系统及其通信方式
    • US06437706B2
    • 2002-08-20
    • US09793770
    • 2001-02-27
    • Yoshihito SatoManabu Kato
    • Yoshihito SatoManabu Kato
    • G08G100
    • G07B15/063G08G1/017G08G1/065
    • An electronic toll collection system (ETCS) for use in a tollgate for charging a car without the need for the car to stop, in which communication failures or errors due to reflected waves from a structure or a passing car are prevented. A roadside communication antenna which communicates with a vehicle-mounted communication antenna for charging, and a car sensor which detects a car (cars) in an area wider than a designed communication area are installed at the tollgate. As an electromagnetic wave path judgment section obtains data on the profile and position of a car which has entered the tollgate, from a car data detector, it calculates electromagnetic wave paths of direct and reflected waves which connect the roadside communication antenna 21 and the vehicle-mounted antenna in each of the cars, and calculates the receiving electric field strength for each of the paths. The direction of the path which has the highest field strength among the paths to the car in the communication area is selected as radiation direction and the direction of the other paths as radiation direction; then the directional pattern which makes the radiant intensity in radiation direction the maximum and that in radiation direction null is determined to control the radiation direction of the antenna unit through a directivity controller.
    • 一种用于收费车辆的电子收费系统(ETCS),用于对汽车充电,而不需要停车,其中防止了由于结构或过路车辆的反射波而造成的通信故障或错误。 与车载通信天线进行充电通信的路侧通信天线和在设计的通信区域中检测轿厢(轿厢)的轿厢传感器安装在收费站。 作为电磁波路径判断部,从轿厢数据检测器获取已经进入收费站的轿厢的轮廓和位置的数据,计算连接路侧通信用天线21和车辆侧通信天线21的直接和反射波的电磁波路径, 并且计算每个路径的接收电场强度。 选择在通信区域中的轿厢路径中具有最高场强的路径的方向作为辐射方向,其他路径的方向作为辐射方向; 那么确定辐射方向上的辐射强度和辐射方向上的辐射强度为零的方向图通过方向性控制器来控制天线单元的辐射方向。