公开(公告)号：US6147753A

公开(公告)日：2000-11-14

申请号：US307756

申请日：1999-05-10

申请人： Tadashi Koyama ,  Keiji Tsunetomo ,  Shuhei Tanaka ,  Hideki Imanishi

发明人： Tadashi Koyama ,  Keiji Tsunetomo ,  Shuhei Tanaka ,  Hideki Imanishi

IPC分类号： G01V8/10 ,  B60S1/08 ,  G01N21/17 ,  G01N21/41 ,  G01N21/00

CPC分类号： B60S1/0888 ,  B60S1/0822 ,  B60S1/0837

摘要： A liquid drop detector which may be fixed or attached by a simple operation, without machining, to a window glass, includes a light emitting element, a light receiving element and light guiding bodies wherein the light emitted by the light emitting element is introduced through a diffraction grating into a first light guiding body and after undergoing total internal reflection within the first light guiding body it is introduced through a silicon member, through an elongated light guiding body, through an additional silicon member, and into a windshield. After traveling within the windshield by total internal reflection, the light passes through a silicon member, reenters the elongated light guiding body, passes through another silicon member and enters a second light guiding body which guides it to a receiver. When rain drops adhere to the outside surface of the windshield at points corresponding to the total internal reflection points at the outer surface of the windshield, the light will leak out of the windshield. As a result of this, the amount of light received by the light receiving element is lessened, thereby providing for detection of the adhesion of rain drops based thereupon so as to output a signal for driving a device such as the windshield wiper.

摘要翻译： 可以通过简单的操作固定或附加到液体滴检测器，而不加工到窗玻璃上，包括发光元件，光接收元件和导光体，其中由发光元件发射的光通过 衍射光栅转换成第一导光体，并且在第一导光体中经历全内反射之后，其通过硅构件，通过细长的导光体通过附加的硅构件引入挡风玻璃中。 通过全内反射在挡风玻璃中行进后，光通过硅构件，重新进入细长导光体，穿过另一个硅构件并进入导向体的第二导光体。 当雨滴在挡风玻璃外表面上与内部全反射点相对应的点处附着在挡风玻璃的外表面上时，光将从挡风玻璃漏出。 其结果是减轻了光接收元件所接收的光量，从而提供了基于雨滴的粘附的检测，从而输出用于驱动诸如挡风玻璃刮水器的装置的信号。

公开(公告)号：US5998782A

公开(公告)日：1999-12-07

申请号：US191188

申请日：1998-11-13

申请人： Tadashi Koyama ,  Keiji Tsunetomo ,  Shuhei Tanaka ,  Hideki Imanishi

发明人： Tadashi Koyama ,  Keiji Tsunetomo ,  Shuhei Tanaka ,  Hideki Imanishi

IPC分类号： G01N21/47 ,  B60S1/08 ,  G01N21/17 ,  G02B6/42

CPC分类号： B60S1/0822 ,  B60S1/0837 ,  B60S1/0881 ,  B60S1/0888

摘要： A windshield (transparent substrate) 1 having the function of detecting the presence of water drops W upon one side surface of the windshield depending upon variations in an amount of reflected light, comprising a rain sensor provided on the other side surface of the windshield, which further comprises: light emitting means 6 for guiding light into the windshield 1; light receiving means 7 for detecting the light which is reflected within the windshield 1; and, light shielding members 10 and 11 provided on the other side surface of the windshield 1 opposing the light emitting means 6 and the light receiving means 7, respectively; wherein the light shielding member 10 shields the light emitted from the light emitting means 6 at an incident angle less than a critical angle at which total internal reflection occurs at a boundary surface between air and the windshield 1, while the other shielding member 11 shields outside ambient light incident upon the light receiving means 7.

摘要翻译： 具有根据反射光量的变化检测挡风玻璃的一个侧面上存在水滴W的功能的挡风玻璃（透明基板）1，其包括设置在挡风玻璃的另一侧表面上的雨水传感器， 还包括：用于将光引导到挡风玻璃1中的发光装置6; 用于检测在挡风玻璃1内被反射的光的光接收装置7; 以及分别设置在挡风玻璃1的与发光装置6和光接收装置7相对的另一侧表面上的遮光构件10和11; 其中遮光构件10以小于在空气和挡风玻璃1之间的边界面处发生全内反射的临界角的入射角遮蔽从发光装置6发射的光，而另一屏蔽构件11屏蔽外部 入射到光接收装置7的环境光。

公开(公告)号：US5991049A

公开(公告)日：1999-11-23

申请号：US120142

申请日：1998-07-22

申请人： Shuhei Tanaka ,  Tadashi Koyama ,  Keiji Tsunetomo ,  Hideki Imanishi

发明人： Shuhei Tanaka ,  Tadashi Koyama ,  Keiji Tsunetomo ,  Hideki Imanishi

IPC分类号： G01N21/17 ,  B60S1/08 ,  G01W1/14 ,  G01N21/55

CPC分类号： B60S1/0822 ,  B60S1/0833 ,  B60S1/0881

摘要： A front windshield 1 having a rain sensor 2 for detecting the adhesion or presence of water drops W upon one side surface thereof, depending upon variation in an amount of reflected light, wherein the rain sensor 2 comprises: a light emitting element 7 for introducing a sensing light beam into the front windshield 1; a light receiving element 8 for detecting the light beam which is propagated by total internal reflection within the front windshield 1; and diffraction gratings 5, 6 formed on a surface of a glass substrate 4, through which the light emitting element 7 and the light receiving element 8 are provided on glass surface, whereby the rain sensor 2 is adhered on the other side surface of the front windshield 1 by means of an adhesive material 3 having a refractive index equivalent to that of the glass substrate 4.

摘要翻译： 一种前挡风玻璃1，其具有雨水传感器2，用于根据反射光量的变化来检测其一个侧表面上的水滴W的粘附或存在，其中雨水传感器2包括：发光元件7，用于引入 将光束传感到前挡风玻璃1; 用于检测在前挡风玻璃1内通过全内反射传播的光束的光接收元件8; 和形成在玻璃基板4的表面上的衍射光栅5,6，发光元件7和受光元件8通过该衍射光栅5设置在玻璃表面上，由此雨传感器2粘附在前面的另一侧面上 挡风玻璃1通过具有与玻璃基板4的折射率相当的折射率的粘合材料3。

公开(公告)号：US6143382A

公开(公告)日：2000-11-07

申请号：US088863

申请日：1998-06-02

申请人： Tadashi Koyama ,  Keiji Tsunetomo ,  Hideki Imanishi

发明人： Tadashi Koyama ,  Keiji Tsunetomo ,  Hideki Imanishi

IPC分类号： G02B6/00 ,  B23K26/00 ,  B23K26/38 ,  C03C3/04 ,  C03C4/00 ,  C03C4/04 ,  C03C23/00 ,  G02B6/32 ,  H05K1/03 ,  H05K3/00 ,  C03C21/00

CPC分类号： C03C4/0071 ,  C03C23/0025 ,  C03C4/04 ,  H05K1/0306 ,  H05K3/0017 ,  Y10S359/90 ,  Y10T428/131 ,  Y10T428/139 ,  Y10T428/24273

摘要： A glass substrate having fine holes formed therein by use of a laser beam without cracks or fragmentation occurring. A glass substrate is used in which silver is contained in the form Ag atoms, Ag colloid or Ag ions, to a predetermined depth from a surface of the glass, and further the concentration gradient of the silver is a maximum at one side surface on which the fine hole machining is performed and gradually decreases toward the other side surface, whereby ablation and evaporation occurs from the surface having the maximum concentration of silver layer by layer without causing cracking or fragmentation.

摘要翻译： 玻璃基板，其中通过使用不产生裂纹或破裂的激光束形成有细孔。 使用玻璃基板，其中银以Ag原子，Ag胶体或Ag离子的形式包含在距玻璃表面的预定深度处，并且银的浓度梯度在其一侧表面上是最大的， 进行细孔加工，并朝向另一侧面逐渐减小，由此从具有最高浓度的银层的表面逐渐发生烧蚀和蒸发，而不会引起裂纹或破裂。

公开(公告)号：US06285037B1

公开(公告)日：2001-09-04

申请号：US09377745

申请日：1999-08-20

申请人： Tadashi Koyama ,  Shuhei Tanaka ,  Keiji Tsunetomo

发明人： Tadashi Koyama ,  Shuhei Tanaka ,  Keiji Tsunetomo

IPC分类号： G01N1506

CPC分类号： B60S1/0833 ,  B60S1/0822

摘要： In a method for detecting liquid drops adhering upon a front windshield with superior sensitivity but without obstructing drivers, a light beam emitted from a light emitting element 4 is guided into a light guiding body 7, and after undergoing total internal reflection within light guiding body 7, it is guided into a front windshield G. The light guided into the front windshield G is received by a light receiving element 5 after repeated total internal reflections within the front windshield G. In this instance, when raindrops adhere on the outside surface of the front windshield G and the adhering points are at the total internal reflection points of the light mentioned above, then the light beam guided into the front windshield G passes through and goes out from the windshield G without undergoing total internal reflection therein. As the result of this, the amount of the light beam received by the light receiving element decreases, thereby enabling detection of adhesion of raindrops based thereon, so as to output a signal for driving a wiper equipment or the like.

摘要翻译： 在用于检测附着在前挡风玻璃上的液滴的灵敏度高但不阻碍驱动器的方法中，从发光元件4发射的光束被引导到导光体7中，并且在导光体7内经受全内反射 被引导到前挡风玻璃G.在前挡风玻璃G内重复的全内反射之后，被导入前挡风玻璃G的光被光接收元件5接收。在这种情况下，当雨滴附着在前挡风玻璃G的外表面上时 前挡风玻璃G和附着点位于上述光的全内反射点，然后被引导到前挡风玻璃G中的光束从挡风玻璃G通过并且不经历内部全反射。 其结果是，由光接收元件接收的光束的量减少，从而能够检测基于其的雨滴的附着，从而输出用于驱动擦拭器设备等的信号。

公开(公告)号：US6097167A

公开(公告)日：2000-08-01

申请号：US120193

申请日：1998-07-22

申请人： Shuhei Tanaka ,  Tadashi Koyama ,  Keiji Tsunetomo

发明人： Shuhei Tanaka ,  Tadashi Koyama ,  Keiji Tsunetomo

IPC分类号： B60S1/08 ,  G05B5/00

CPC分类号： B60S1/0818 ,  B60S1/0833 ,  Y10S318/02

摘要： A water drop detection device for detecting an amount of water drops present upon a surface of a transparent substrate in which a light source with a driver circuit guides light into the substrate so as to cause the light to under go internal reflection within the substrate. The light source has a light emitting element and a receiving light sensing element for detecting the light output from the emitting element. The light outputted from the light emitting element is modulated by a predetermined frequency. A signal corresponding to the modulated component is separated from the output signal of the receiving light sensing element. The output light emission of the light emitting element is controlled as a desired value by feeding the separated signal back to the driver circuit of the light emitting element.

摘要翻译： 一种水滴检测装置，用于检测存在于透明基板的表面上的水滴的量，其中具有驱动电路的光源将光引导到基板中，以使光在基板内部反射。 光源具有用于检测从发光元件输出的光的发光元件和接收光感测元件。 从发光元件输出的光被调制预定的频率。 与调制分量相对应的信号与接收光感测元件的输出信号分离。 通过将分离的信号反馈回发光元件的驱动电路，将发光元件的输出光发射控制为期望值。

公开(公告)号：US5917603A

公开(公告)日：1999-06-29

申请号：US120141

申请日：1998-07-22

申请人： Shuhei Tanaka ,  Tadashi Koyama ,  Keiji Tsunetomo

发明人： Shuhei Tanaka ,  Tadashi Koyama ,  Keiji Tsunetomo

IPC分类号： G01N21/17 ,  B60S1/08 ,  G01B11/00

CPC分类号： B60S1/0833 ,  B60S1/0822 ,  B60S1/0881

摘要： A wiper control apparatus of the water drop sensitive type for detecting of the amount of water or water drops adhering to or present upon the front surface of a windshield and for driving a wiper, comprising: a light emitting means for introducing light into the inside of the windshield so that the light experiences total internal reflection upon interior surfaces of the windshield; a light receiving means for receiving the light reflected within the windshield; means for turning a first output D1, a second output D2, and a third output D3 to either an H level or an L level in response to the level of a signal output from the light receiving means, the outputs being preset in sequence of height of sensitivity thereof; means for outputting a drive signal WD for the wiper when outputs D1, D2, and D3 are switched into the H level; means for maintaining the drive signal as long as the second output signal D2 is in the H level even if the third output D3 turns to the L level; and means for stopping the drive signal WD for the wiper when the second output D2 turns OFF.

摘要翻译： 一种用于检测粘附在挡风玻璃前表面上或存在于挡风玻璃前表面上并用于驱动刮水器的水滴或水滴量的水滴敏感型刮水器控制装置，包括：发光装置，用于将光引入到 挡风玻璃，使得光线在挡风玻璃的内表面上经受全内反射; 光接收装置，用于接收在挡风玻璃内反射的光; 响应于从光接收装置输出的信号的电平，将第一输出D1，第二输出D2和第三输出D3转换为H电平或L电平的装置，输出按照高度 的灵敏度; 当输出D1，D2和D3切换到H电平时，输出用于刮水器的驱动信号WD的装置; 即使第三输出D3变为L电平，只要第二输出信号D2处于H电平即可维持驱动信号的装置; 以及用于当第二输出D2变为OFF时停止刮水器的驱动信号WD的装置。

公开(公告)号：US06239444B1

公开(公告)日：2001-05-29

申请号：US09564799

申请日：2000-05-05

申请人： Shuhei Tanaka ,  Tadashi Koyama ,  Keiji Tsunetomo

发明人： Shuhei Tanaka ,  Tadashi Koyama ,  Keiji Tsunetomo

IPC分类号： G01N2117

CPC分类号： B60S1/0818 ,  B60S1/0833 ,  Y10S318/02

摘要： A water drop detection device for detecting an amount of water drops present upon a surface of a transparent substrate in which a light source with a driver circuit guides light into the substrate so as to cause the light to under go internal reflection within the substrate. The light source has a light emitting element and a receiving light sensing element for detecting the light output from the emitting element. The light output from the light emitting element is modulated by a predetermined frequency. A signal corresponding to the modulated component is separated from the output signal of the receiving light sensing element. The output light emission of the light emitting element is maintained at a desired value by feeding the separated signal back to the driver circuit of the light emitting element.

摘要翻译： 一种水滴检测装置，用于检测存在于透明基板的表面上的水滴的量，其中具有驱动电路的光源将光引导到基板中，以使光在基板内部反射。 光源具有用于检测从发光元件输出的光的发光元件和接收光感测元件。 从发光元件输出的光被预定的频率调制。 与调制分量相对应的信号与接收光感测元件的输出信号分离。 通过将分离的信号反馈回发光元件的驱动电路，将发光元件的输出光发射保持在期望值。

公开(公告)号：US06397161B1

公开(公告)日：2002-05-28

申请号：US09211318

申请日：1998-12-16

申请人： Shuhei Tanaka ,  Tadashi Koyama ,  Keiji Tsunetomo

发明人： Shuhei Tanaka ,  Tadashi Koyama ,  Keiji Tsunetomo

IPC分类号： G01K1130

CPC分类号： B60S1/0818 ,  B60S1/0833 ,  B60S1/0866

摘要： A rain sensor including light emitting means 7 for guiding light into a window glass so as to undergo total internal reflection within the window glass, light receiving means 8 for receiving the light which has undergone total internal reflection within the window glass, and means for detecting the amount of water drops adhered to or present upon the window glass so as to output a driving signal to a wiper driver apparatus 20, a difference signal corresponding to a difference between a preset reference value and an output signal of an amplifier circuit 17 of the light receiving means is fed back to the amplifier 17, and an amplification factor of the amplifier circuit 17 is adjusted so as to maintain the output signal thereof at a constant value irrespective of the operation condition of the wiper, when electrical power is applied to the rain sensor 2. Furthermore, in a protecting method for the rain sensor 2, a driving current fed to light emitting element 10 is measured and converted into an ambient temperature, and a driving current supplied to the light emitting element 10 by the driver circuit 12 is stopped when the converted value is outside a preset temperature range, by turning a switch circuit 14 to OFF.

摘要翻译： 一种雨水传感器，包括用于将玻璃引导到窗玻璃内的发光装置7，以便在窗玻璃内进行全内反射，用于接收在窗玻璃内完全内部反射的光的光接收装置8，以及用于检测 在窗玻璃上附着或存在的水滴量，以将驱动信号输出到刮水器驱动装置20，对应于预设参考值和放大器电路17的输出信号之间的差的差信号 光接收装置被反馈到放大器17，并且调节放大器电路17的放大系数，以便在与第二实施例的电力施加电力时，将其输出信号保持在恒定值，而不管擦拭器的操作条件如何 雨传感器2.此外，在雨传感器2的保护方法中，测量并转换供给发光元件10的驱动电流 并且当转换值在预设温度范围之外时，通过将开关电路14转到OFF来停止通过驱动电路12提供给发光元件10的驱动电流。

公开(公告)号：US06239570B1

公开(公告)日：2001-05-29

申请号：US09211286

申请日：1998-12-16

申请人： Shuhei Tanaka ,  Tadashi Koyama ,  Keiji Tsunetomo

发明人： Shuhei Tanaka ,  Tadashi Koyama ,  Keiji Tsunetomo

IPC分类号： H02P300

CPC分类号： B60S1/0818 ,  B60S1/0833 ,  Y10S318/02

摘要： A wiper controller apparatus of the water drop sensitive type comprises: light emitting means 7 for guiding light into a window glass so as to undergo total internal reflection within said window glass; light receiving means 8 for receiving the light which has undergone total internal reflection within said window glass; means for detecting the amount of water drops adhered or present upon an outside surface of said window glass based on an output of said light receiving means, and for driving a wiper thereupon; wherein the apparatus further comprises wiper driving means 18 for driving the wiper again by only one cycle if a time interval from an initiation of said wiper action exceeds a predetermined time. The apparatus further comprises anther wiper driving means 18 for driving said wiper when the signal duration time of the output signal S1 of said light receiving means 8 is equal to or greater than a predetermined time.

摘要翻译： 水滴敏感型刮水器控制装置包括：发光装置7，用于将光引导到窗玻璃中，以在所述窗玻璃内进行全内反射; 用于接收在所述窗玻璃内完全内反射的光的光接收装置8; 用于基于所述光接收装置的输出检测在所述窗玻璃的外表面上附着或存在的水滴量的装置，以及用于在其上驱动擦拭器的装置; 其中所述装置还包括刮水器驱动装置18，用于如果从所述刮水器动作的启动起始的时间间隔超过预定时间，则再次驱动刮水器仅一个循环。 该装置还包括用于在所述光接收装置8的输出信号S1的信号持续时间等于或大于预定时间时驱动所述擦拭器的花药泵驱动装置18。