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    • 5. 发明授权
    • Distance measuring apparatus
    • 距离测量仪
    • US4768053A
    • 1988-08-30
    • US945500
    • 1986-12-23
    • Motonobu MatsudaYoshihiro TanakaMotohiro NakanishiNobuyuki TaniguchiHiroshi Ootsuka
    • Motonobu MatsudaYoshihiro TanakaMotohiro NakanishiNobuyuki TaniguchiHiroshi Ootsuka
    • G01C3/06G01C3/00G01S17/46G02B7/28G03B13/36G03B3/00G01C3/08
    • G01S17/48G02B7/28
    • A distance measuring apparatus of the present invention converges the reflected light on objects through a converging lens and detects the light by a multi-divisional photodiode. The multi-divisional photodiode comprises a plural number of light receiving elements so that each of the light receiving elements detects the reflected light from the corresponding object to provide an electric signal according to the quantity of reflected light. The quantity of light in the peripheral portions of the flash or the converging lens is inherently smaller than the quantity of light in the central portion thereof. This distance measuring apparatus is improved so that a constant electric signal is obtained by any of the light receiving elements as far as the distance to the objects is constant. For example, such improvement is made in a manner in which: the quantity of received light of the central portion is limited by a filter provided between the converging lens and the multi-divisional photodiode; the light receiving areas of the light receiving elements are increased in peripheral portions of the multi-divisional photodiode compared with those in the central portion thereof; or the obtained electric signal is electrically corrected.
    • 本发明的距离测量装置通过会聚透镜会聚物体上的反射光,并通过多分辨光电二极管检测光。 多分光电二极管包括多个光接收元件,使得每个光接收元件检测来自相应物体的反射光,以根据反射光量提供电信号。 闪光灯或会聚透镜的周边部分的光量本质上小于其中心部分的光量。 该距离测量装置被改进,使得通过任何光接收元件获得恒定的电信号,只要距离物体的距离是恒定的。 例如,这样的改进方式是:中心部分的接收光量由设在会聚透镜和多分辨光电二极管之间的滤光器限制; 与其中央部分相比,多分辨光电二极管的周边部分的光接收元件的光接收面积增加; 或者所获得的电信号被电校正。
    • 8. 发明授权
    • Automatic range finder
    • 自动测距仪
    • US4419011A
    • 1983-12-06
    • US285109
    • 1981-07-20
    • Motonobu MatsudaYoshihiro Tanaka
    • Motonobu MatsudaYoshihiro Tanaka
    • G03B13/36G01C3/00G01C3/06G01C3/10G01S17/46G02B7/32G03B7/08H01L9/00H05B33/00
    • G01S17/48G01C3/10G02B7/32Y10S362/80
    • An automatic range finder for measuring the distance to an object on the basis of the triangulation principle, including a light-emitting diode (16) for projecting the emitted light toward an object whose distance is to be measured, and a plurality of light-receiving elements (8a, 8b, 8c, 8d) being so arranged on a base plate (12) that either one of them can receive the reflected light from the object. The light-emitting diode (16) is electrically connected with planar, electrically conductive frames (20), (22) and is so molded by use of transparent material (26) as to be formed unitarily with the electrically conductive frames. The light-emitting diode (16) thus formed into one unit is mounted on the base plate through the electrically conductive frame.
    • PCT No.PCT / JP80 / 00285 Sec。 371日期1981年7月20日 102(e)日期1981年7月20日PCT文件1980年11月21日PCT公布。 出版物WO81 / 01610 日期:1981年6月11日。一种用于基于三角测量原理测量到物体的距离的自动测距仪,包括用于将发射的光投射到待测距离的物体的发光二极管(16) 并且多个光接收元件(8a,8b,8c,8d)被布置在基板(12)上,使得它们中的任一个可以接收来自物体的反射光。 发光二极管(16)与平面的导电框架(20),(22)电连接,并且通过使用透明材料(26)被模制成与导电框架一体形成。 由此形成为一个单元的发光二极管(16)通过导电框架安装在基板上。
    • 9. 发明授权
    • Light emitting diode
    • 发光二极管
    • US4412234A
    • 1983-10-25
    • US244321
    • 1981-03-16
    • Motonobu MatsudaYoshihiro Tanaka
    • Motonobu MatsudaYoshihiro Tanaka
    • H01L33/38H01L33/00H01L23/28H01L23/48H01L25/04
    • H01L33/38H01L2224/32245H01L2224/48091H01L2224/48247H01L2224/48463H01L2224/73265H01L2924/3025
    • A light emitting diode constituted by a pair of semiconductor layers having a planar P-N junction therebetween, the semiconductor layers having at least one side surface extending transversely across the P-N junction and from which light is emitted in a direction parallel with the plane of the P-N junction, a pair of electrodes on the respective outer surfaces of the pair of semiconductor layers parallel with the plane of the P-N junction plane, at least one of the pair of electrodes covering an area less than the total area of the P-N junction and being located adjacent to the one side surface from which the light is emitted, the remainder of the area of the outer surface of the semiconductor layer not being covered by the electrode, and a light shielding member covering the remainder of the area of the outer surface of the semiconductor layer which is not covered by the one electrode. The light shield member is made of a material identical with that of the one electrode, and is insulated from the one electrode, and the light shielding member and the one electrode are spaced from each other to define a gap therebetween for insulating them from each other.
    • 一种由一对半导体层构成的发光二极管,它们之间具有平面PN结,所述半导体层具有至少一个横向穿过PN结延伸的侧表面,并且在与PN结的平面平行的方向上发射光 ,所述一对半导体层的相应外表面上的一对电极与所述PN结平面的平面平行,所述一对电极中的至少一个电极覆盖小于所述PN结的总面积并且位于相邻的区域 发光的一侧表面,半导体层的外表面的其余区域不被电极覆盖,并且遮光构件覆盖半导体的外表面的其余区域 未被一个电极覆盖的层。 遮光构件由与一个电极相同的材料制成,并且与一个电极绝缘,并且遮光构件和一个电极彼此间隔开,以在它们之间形成间隙以使它们彼此绝缘 。