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    • 12. 发明申请
    • Detection device
    • 检测装置
    • US20060265147A1
    • 2006-11-23
    • US11405450
    • 2006-04-18
    • Atsushi YamaguchiYoshihisa SuzukiMasato YamadaShuichi Ichiura
    • Atsushi YamaguchiYoshihisa SuzukiMasato YamadaShuichi Ichiura
    • G06F19/00
    • G01S7/481G01S7/497G01S17/936
    • An object of the present invention is to provide a detection device which does not cause the false detection by receiving laser light from an oncoming car. The pulse laser light modulated with a modulation pattern set every target position is irradiated at the target position from a laser irradiation portion. DSP (Digital Signal Processor) decides that there is an obstacle at the target position only when the modulation pattern of the pulse laser light emitted from the laser emitting portion matches with the modulation pattern of the pulse laser light received by the laser receiving portion. It is suppressed that the detection device misdetects the conditions of the target position when receiving laser light from an oncoming car or the like because modulation pattern of laser light from own does not match with modulation pattern of laser light from the oncoming car or the like.
    • 本发明的目的是提供一种通过接收来自迎面而来的轿厢的激光不会引起错误检测的检测装置。 以每个目标位置设定的调制图案调制的脉冲激光在激光照射部分的目标位置被照射。 只有当从激光发射部分发射的脉冲激光的调制图案与由激光接收部分接收的脉冲激光的调制图案匹配时,DSP(数字信号处理器)才确定目标位置处存在障碍物。 抑制了当从迎面而来的轿厢等接收激光时检测装置误检目标位置的状况,因为来自其的激光的调制图案与迎面而来的轿厢等的激光的调制图案不匹配。
    • 13. 发明授权
    • Gallium phosphide luminescent device
    • 磷化镓发光装置
    • US06479312B1
    • 2002-11-12
    • US09869266
    • 2001-06-27
    • Masato YamadaSusumu HiguchiKousei YumotoMakoto KawasakiKen Aihara
    • Masato YamadaSusumu HiguchiKousei YumotoMakoto KawasakiKen Aihara
    • H01L2100
    • H01L33/025H01L33/30Y10S438/918
    • By providing a nitrogen-doped low carrier concentration layer 13 having both of a donor concentration and an acceptor concentration controlled below 1×1016/cm3 at a p-n junction portion between an n-type GaP layer 12 and a p-type GaP layer 14, the luminance of the GaP light emitting device can be improved by as much as 20 to 30% over the conventional one. Suppressing the donor concentration and the acceptor concentration in the low carrier concentration layer 13 below 1×1016/cm3 inevitably gives a carrier concentration, which is expressed as a difference between both concentrations, lower than 1×1016/cm3 accordingly. The emission efficiency upon injection of electrons or holes can be improved by suppressing the concentration of the donor which serves as non-emissive center below 1×1016/cm3 to thereby extend the carrier lifetime; and by concomitantly suppressing the carrier concentration at a level significantly lower than that in the adjacent layers 12 and 14.
    • 通过在n型GaP层12和p型GaP层14之间的pn结部分提供具有供体浓度和受主浓度两者的氮掺杂低载流子浓度层13,其控制在1×1016 / cm3以下, 的GaP发光器件可以比传统的发光器件提高多达20至30%。 抑制低载体浓度层13中的供体浓度和受体浓度低于1×10 16 / cm 3时,不可避免地会产生一个载流子浓度,其表示为两个浓度之间的差值,相应地低于1×10 16 / cm 3。 通过抑制作为不发光中心的供体的浓度低于1×10 16 / cm 3,可以提高注入电子或空穴的发射效率,从而延长载体寿命; 并且通过伴随地将载流子浓度抑制在显着低于相邻层12和14中的水平。
    • 20. 发明授权
    • Beam irradiation device, laser radar system, and detecting device
    • 光束照射装置,激光雷达系统和检测装置
    • US07864304B2
    • 2011-01-04
    • US12367208
    • 2009-02-06
    • Masato YamadaAtsushi YamaguchiYoshiaki Maeno
    • Masato YamadaAtsushi YamaguchiYoshiaki Maeno
    • G01C3/08
    • G01S3/784G01S7/4813G01S7/4817G01S7/499G01S17/46
    • A beam irradiation device includes: a first light source for emitting laser light; an actuator for moving a scanning section for receiving the laser light to scan a target area with the laser light; a second light source movable with the scanning section and adapted for emitting diffused light; a light receiving position detecting device for receiving the diffused light to output a signal depending on a position of receiving the diffused light; and a light projecting element, disposed at a position closer to the light receiving position detecting device with respect to an intermediate position between the second light source and the light receiving position detecting device, for projecting an emission position to be defined by the second light source on the light receiving position detecting device via a predetermined projection area.
    • 光束照射装置包括:用于发射激光的第一光源; 用于移动用于接收激光的扫描部分以用激光扫描目标区域的致动器; 第二光源,其可与扫描部分一起移动并适于发射漫射光; 光接收位置检测装置,用于接收漫射光以根据接收漫射光的位置输出信号; 以及投光元件,其设置在相对于所述第二光源和所述受光位置检测装置之间的中间位置的靠近所述受光位置检测装置的位置,用于投射由所述第二光源 经由预定投影区域在光接收位置检测装置上。