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    • 2. 发明授权
    • Method for detecting light-emitting elements having uniform luminous flux
    • 用于检测具有均匀光通量的发光元件的方法
    • US09000341B2
    • 2015-04-07
    • US13587479
    • 2012-08-16
    • Harunobu YoshidaTz-Liang ChangPo-Hsiung Peng
    • Harunobu YoshidaTz-Liang ChangPo-Hsiung Peng
    • H04N1/60G03F7/00G03G15/043
    • H04N1/6033G03F7/00G03G15/043G03G2215/0129
    • A method for detecting light amount uniformity is applicable to a light-emitting device including a plurality of light-emitting elements. First, the light-emitting device is placed in a sensed region of a photo-sensing apparatus. Then, the following steps are executed N times: during the nth execution, turning on the (n+i×N)th light-emitting element, where i is 0 or a positive integer, n is less than or equal to N, and n and N are positive integers; detecting light emission of the light-emitting element with the photo-sensing apparatus to produce a scanned image; and finally, comparing whether the bright spots corresponding to the light-emitting elements in the scanned images produced through the N steps are consistent, and outputting an output signal indicating whether the light-emitting device is normal or abnormal.
    • 用于检测光量均匀性的方法可应用于包括多个发光元件的发光器件。 首先,将发光装置放置在感光装置的感测区域中。 然后,执行以下步骤N次:在第n次执行期间,打开(n + i×N)个发光元件,其中i为0或正整数,n小于或等于N,以及 n和n是正整数; 利用感光装置检测发光元件的发光以产生扫描图像; 最后,比较通过N个步骤产生的扫描图像中与发光元件相对应的亮点是否一致,并输出指示发光装置是正常还是异常的输出信号。
    • 4. 发明授权
    • Image sensor and image reading device
    • 图像传感器和图像读取装置
    • US08199377B2
    • 2012-06-12
    • US11916759
    • 2006-05-06
    • Masahide WakisakaHarunobu Yoshida
    • Masahide WakisakaHarunobu Yoshida
    • H04N1/04
    • H04N1/0318H04N1/1017H04N2201/0081H04N2201/03112H04N2201/03141H04N2201/03145H04N2201/0317H04N2201/0434
    • There is provided an image sensor in which an enlargement of a substrate width is not caused even in a case that a rod-shaped light source is provided on both sides of a resin lens plate, respectively, and in which a positional accuracy of component is superior. The image sensor comprises a rod-shaped light source for irradiating light to an original placed on an original glass plate, an imaging optics for focusing light reflected on the original, and a light-receiving element for receiving light passing through the imaging optics, the light-receiving element being positioned at a predetermined location on a substrate which is provided with through holes for terminals of lead frames of the rod-shaped light source. The terminals of lead frames of the rod-shaped light source are bent toward the center of the substrate to be connected with the through holes.
    • 提供了一种图像传感器,其中即使在分别在树脂透镜板的两侧设置棒状光源的情况下也不会引起基板宽度的扩大,并且其中部件的位置精度为 优越。 图像传感器包括用于将光照射到放置在原始玻璃板上的原稿的棒状光源,用于聚焦在原稿上反射的光的成像光学元件和用于接收通过成像光学元件的光的光接收元件, 光接收元件位于基板上的预定位置处,该基板设置有用于杆状光源的引线框架的端子的通孔。 杆状光源的引线框架的端子朝向基板的中心弯曲以与通孔连接。
    • 6. 发明授权
    • Deposit detector and control device using it
    • 存款检测器和使用它的控制装置
    • US07002480B2
    • 2006-02-21
    • US10451509
    • 2001-12-25
    • Fumitoshi KobayashiKeiji TsunetomoHarunobu YoshidaTatsumi Tokuda
    • Fumitoshi KobayashiKeiji TsunetomoHarunobu YoshidaTatsumi Tokuda
    • G08B21/00G01N21/49G01N21/55G02B6/42
    • B60S1/0822B60S1/0833B60S1/0837B60S1/0844G01N21/43G01N21/47G01N2021/157G06K9/00791Y10S318/02
    • A deposit detector in which deposit on a detection surface has a surface shape effect, and generation of a flashing phenomenon caused by irregular reflection of the light incident on the deposit from the outside is estimated. In a deposit detection mode, light emitted from a light source (10) for total reflection and total-reflected from the detection surface is received by a light-receiving element unit (50). Each element is disposed at such an angle that the light undergoes total reflection when no deposit is present or the condition of total reflection is not satisfied when deposit is present. Further, in a light-scattering deposit detection mode, light emitted from a scattering light source (20) and scattered by the detection surface is received by the light-receiving element unit (50). In an extraneous light quantity increase detection mode, extraneous light is received by the light-receiving element unit (50). Light detection signal generated while changing the mode is analyzed by a deposit estimation unit (60), and deposition of rain drops and increase in incident extraneous light quantity are detected to estimate generation of irregular reflection (flashing phenomenon) caused by the shape effect of deposit.
    • 一种沉积物检测器,其中检测表面上的沉积物具有表面形状效应,并且估计由外部存在的光的不规则反射引起的闪光现象的产生。 在沉积检测模式中,由光接收元件单元(50)接收从用于全反射并从检测表面全反射的光源(10)发出的光。 每个元件设置成这样的角度,即当不存在沉积时,光经历全反射,或者当存在沉积时不能满足全反射的条件。 此外,在光散射沉积检测模式中,由光接收元件单元(50)接收从散射光源(20)发射并被检测表面散射的光。 在外部光量增加检测模式中,光接收元件单元(50)接收外部光。 改变模式时产生的光检测信号由沉积估计单元(60)分析,并且检测出雨滴的沉积和入射附加光量的增加以估计由沉积物的形状效应引起的不规则反射(闪烁现象)的产生 。
    • 7. 发明授权
    • Adhering substance detector and controller using the same
    • 粘附物质检测器和使用它的控制器
    • US06919961B2
    • 2005-07-19
    • US10276131
    • 2001-05-10
    • Keiji TsunetomoFumitoshi KobayashiHideki ImanishiHarunobu YoshidaMasahide WakisakaTatsumi Tokuda
    • Keiji TsunetomoFumitoshi KobayashiHideki ImanishiHarunobu YoshidaMasahide WakisakaTatsumi Tokuda
    • B60S1/08G01N21/17G01N21/55
    • G01N21/552B60S1/0818B60S1/0822B60S1/0837B60S1/0888
    • An object sensor is provided, which has a high object detection rate with respect to an object such as a raindrop adhering to a detection surface, and which is capable of detecting the presence/absence of an object with a high sensitivity. A light source 10, a detection surface 110, a focusing lens 40, and a plurality of photodetecting elements of a photodetecting unit 50 form a focusing system of equal magnification that is capable of catching an image in a size smaller than an object to be detected. Light emitted from the light source 10 is incident on the detection surface 110 via a prism 20 at a predetermined incident angle. Without a raindrop 120, the total internal reflection condition is satisfied as shown by a path 140 of a beam, so that the beam is subjected to the total internal reflection. Then, the beam passes through a prism 30, and is focused on a photodetecting surface of the photodetecting unit 50 by the focusing lens 40. On the other hand, with a raindrop 120, the total internal reflection condition is not satisfied as shown by a trail 130 of a beam, so that the beam passes therethrough and is not focused on the photodetecting unit 50. A difference in signal level is determined on the photodetecting element basis, so that an object covering the detection surface 110 is detected.
    • 提供了一种对象传感器,其具有相对于粘附到检测表面上的诸如雨滴的物体的高物体检测率,并且能够以高灵敏度检测物体的存在/不存在。 光源10,检测面110,聚焦透镜40以及受光部50的多个受光元件构成能够捕捉小于被检测物的尺寸的图像的等倍率的聚焦系统 。 从光源10发射的光以预定的入射角通过棱镜20入射在检测面110上。 没有雨滴120,如束的路径140所示,满足全内反射条件,使得光束经受全内反射。 然后,光束通过棱镜30,并且通过聚焦透镜40聚焦在光电检测单元50的受光面上。 另一方面,利用雨滴120,如束的轨迹130所示,不满足全内反射条件,使得光束通过,并且不聚焦在光电检测单元50上。 在光检测元件的基础上确定信号电平的差异,从而检测覆盖检测面110的物体。