公开(公告)号：JP2009099118A

公开(公告)日：2009-05-07

申请号：JP2008139655

申请日：2008-05-28

Applicant: Fenwall Controls Of Japan Ltd ,  Sharp Corp ,  シャープ株式会社 ,  日本フエンオール株式会社

Inventor： OKABAYASHI NAONORI ,  TAKAOKA TAKASHI ,  MIZUO KAZUHIRO

IPC: G08B17/107

Abstract: PROBLEM TO BE SOLVED: To provide a smoke sensor capable of avoiding incorrect detection caused by element deterioration or a disturbance such as temperature change, and applicable to a reflection type.
SOLUTION: In the smoke sensor, a signal processing circuit 16A outputs a smoke detection signal on the basis of a difference between a first output signal outputted by a first amplifier 5, and a second output signal output by a second amplifier 6. When a first photo detector 2 receives a disturbance such as temperature change or element deterioration, a second photo detector also receives the disturbance such as the temperature change or the element deterioration. Accordingly, by using the smoke detection signal based upon the difference between the first output signal by a first photoreception signal and the second output signal by a second photoreception signal, fluctuation factors due to a disturbance such as temperature change and element deterioration are counterbalanced, and incorrect detection can be avoided.
COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：提供一种能够避免由元件劣化或诸如温度变化的干扰引起的错误检测的烟雾传感器，并且可应用于反射型。 解决方案：在烟雾传感器中，信号处理电路16A基于由第一放大器5输出的第一输出信号和由第二放大器6输出的第二输出信号之间的差异输出烟雾检测信号。 当第一光电检测器2接收到诸如温度变化或元件劣化的干扰时，第二光电检测器还接收诸如温度变化或元件劣化的干扰。 因此，通过使用基于第一光接收信号的第一输出信号与第二输出信号之间的差与第二光接收信号的烟检测信号，由于诸如温度变化和元件劣化的干扰引起的波动因素被平衡，并且 可以避免错误检测。 版权所有（C）2009，JPO＆INPIT

公开(公告)号：JP2006126021A

公开(公告)日：2006-05-18

申请号：JP2004315142

申请日：2004-10-29

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： TAKAOKA TAKASHI ,  KAWANISHI SHINYA ,  YAMAGUCHI AKISHI ,  NAKANO TAKAHIKO

IPC: G01C3/06

Abstract: PROBLEM TO BE SOLVED: To surely correct output fluctuations caused by a change in ambient temperature.
SOLUTION: A temperature correction resistor 21 is provided between an output terminal 16 and a ground section of a signal processing circuit 15 installed in a signal processing IC 4 mounted on a lead frame together with a light receiving element. When an output level of the signal processing circuit 15 fluctuates caused by a change in ambient temperature, a resistance value of the temperature correction resistor 21 is adjusted so that the fluctuations in the output level are canceled out. The output fluctuations of the signal processing circuit 15 caused by a change in ambient temperature can be thereby surely corrected.
COPYRIGHT: (C)2006,JPO&NCIPI

Abstract translation: 要解决的问题：确保校正由环境温度变化引起的输出波动。 解决方案：温度校正电阻器21设置在安装在安装在引线框架上的信号处理IC 4中的信号处理电路15的输出端子16和接地部分与光接收元件之间。 当信号处理电路15的输出电平由于环境温度的变化而变动时，调节温度校正电阻器21的电阻值，从而抵消输出电平的波动。 可以确定地校正由环境温度变化引起的信号处理电路15的输出波动。 版权所有（C）2006，JPO＆NCIPI

公开(公告)号：JP2013120404A

公开(公告)日：2013-06-17

申请号：JP2011266462

申请日：2011-12-06

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： TAKAOKA TAKASHI

IPC: G08B17/107 ,  G01N21/59 ,  G08B17/00

Abstract: PROBLEM TO BE SOLVED: To provide a smoke detector that can reliably detect both white smoke and blackish smoke and prevent erroneous detection of smoke induced by the presence of dust and/or bugs.SOLUTION: A smoke detector comprises a light emitting element 1 that emits light toward a smoke detecting area D, a position detecting element 4 having a light receiving face 4a on which light reflected by smoke particles in the smoke detecting area D comes incident and outputting signal currents Iand Iwhich represent the positions of incident light within this light receiving face 4a, and a control device 100. This control device 100, when it determines on the basis of the ratio between the signal currents Iand Ireceived from the position detecting element 4 that substantially the whole area of the light receiving face 4a of the position detecting element 4 has received reflected light from the smoke particles, recognizes the presence of smoke within the smoke detecting area D.

Abstract translation: 要解决的问题：提供一种能够可靠地检测白烟和黑烟的烟雾探测器，并防止由灰尘和/或臭虫的存在引起的烟雾的错误检测。 烟雾检测器包括朝向烟雾检测区域D发射光的发光元件1，具有受光面4a的位置检测元件4，烟雾检测区域D中的烟雾粒子反射的光入射到该受光面4a 并且输出表示该光接收面4a内的入射光的位置的信号电流I 1 和I 2 ，以及控制 该控制装置100基于信号电流I 1 与I 2 之间的比率确定时， 从位置检测元件4接收到基本上位置检测元件4的受光面4a的整个区域已经接收到来自烟雾粒子的反射光的光，识别烟雾检测区域D内的烟雾的存在。版权所有： （C）2013，JPO＆INPIT

公开(公告)号：JP2006153730A

公开(公告)日：2006-06-15

申请号：JP2004346695

申请日：2004-11-30

Applicant: Pan Washlet:Kk ,  Sharp Corp ,  Toto Ltd ,  シャープ株式会社 ,  東陶機器株式会社 ,  株式会社パンウォシュレット

Inventor： NAKANO TAKAHIKO ,  TAKAOKA TAKASHI ,  YAMAGUCHI AKISHI ,  KAWANISHI SHINYA ,  KASAHARA KAZUMI ,  SUGIHARA KOJI

IPC: G01C3/06 ,  E03D9/08

Abstract: PROBLEM TO BE SOLVED: To prevent a false distance measurement from occurring due to shifting of an object in relation to radiation light.
SOLUTION: A light blocking section made up of a light blocking resin 16 having a window 17 is disposed at a light emitting section which contains a light emitting chip 12 mounted on a lead frame 11, thereby blocking a spread portion of radiation light caused by reflection light from the lead frame 11. As a result, even in the case the object which should be in the center section of the radiation light, is shifted along an alignment direction of the light emitting chip 12 and a light receiving chip 13 so as to be deviated from a portion of the radiation light, since the spread portion of the radiation light is blocked and does not exist there, reflection light of the spread portion of the radiation light from the object is prevented from entering the light receiving chip 13. Therefore, the false distance measurement is prevented from occurring due to the shifting of the object in relation to radiation light.
COPYRIGHT: (C)2006,JPO&NCIPI

Abstract translation: 要解决的问题：为了防止由于物体相对于辐射光的移动而发生假距离测量。 解决方案：由具有窗口17的遮光树脂16构成的遮光部分设置在包含安装在引线框架11上的发光芯片12的发光部分上，从而阻挡辐射光的扩展部分 由引线框架11的反射光引起的。结果，即使在应该在放射线的中心部分中的物体沿着发光芯片12的定向方向和光接收芯片13 为了偏离辐射光的一部分，由于辐射光的扩展部分被阻挡并且不存在，所以防止来自物体的辐射光的展开部分的反射光进入光接收芯片 因此，防止由于物体相对于辐射光的偏移而发生假距离测量。 版权所有（C）2006，JPO＆NCIPI

公开(公告)号：JP2005181116A

公开(公告)日：2005-07-07

申请号：JP2003422690

申请日：2003-12-19

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： TAKAOKA TAKASHI ,  MIZUO KAZUHIRO

IPC: G01V8/20 ,  G01J1/02 ,  G01J1/42

Abstract: PROBLEM TO BE SOLVED: To provide an infrared sensor device capable of detecting accurately the existing position of a person or the like, and detecting the presence of a human or the like, in a region comparatively close to the infrared sensor device and comparatively wide. SOLUTION: A pyroelectric element 1 having first detection regions 11, 12, 13, 14 and a pyroelectric element 2 having second detection regions 21, 22, 23, 24 are arranged at prescribed interval. Each and/or between the first detection regions 11, 12, 13, 14 and the second detection regions 21, 22, 23, 24 is detected, by using a signal from the first pyroelectric element 1 and a signal from the second pyroelectric element 2, and the existing position and the movement of a detection object are detected. Since the two pyroelectric elements, having the plurality of detection regions are arranged mutually at the interval, the resolution in the detection range of the detection object can be enhanced. COPYRIGHT: (C)2005,JPO&NCIPI

Abstract translation: 要解决的问题：提供一种能够精确地检测人物等的现有位置并且在比较靠近红外线传感器装置的区域中检测人类等的存在的红外线传感器装置，以及 比较宽 解决方案：具有第一检测区域11,12,13,14的热电元件1和具有第二检测区域21,22,23,24的热电元件2以规定间隔排列。 通过使用来自第一热电元件1的信号和来自第二热电元件2的信号来检测第一检测区域11,12,13,14和第二检测区域21,22,23,24之间和/ 并且检测到检测对象的现有位置和移动。 由于具有多个检测区域的两个热电元件以间隔相互排列，因此可以提高检测对象的检测范围内的分辨率。 版权所有（C）2005，JPO＆NCIPI

公开(公告)号：JP2004029376A

公开(公告)日：2004-01-29

申请号：JP2002185541

申请日：2002-06-26

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： TAKAOKA TAKASHI

IPC: G03B13/36 ,  G01C3/08 ,  G02B7/02 ,  G02B7/28 ,  G02B7/32

CPC classification number: G01C3/085

Abstract: PROBLEM TO BE SOLVED: To provide an improved range finding sensor so that its output can be more easily adjusted.
SOLUTION: A light emitting element 1, a photoflood lens 33 for flooding outgoing light emitted from the light emitting element 1 to an object, a condensing lens 38 for collecting reflected light from the object, and a light receiving element 2 are provided. The light receiving element 2 is installed in a light collecting position of the condensing lens 38 and transmits a different signal according to a position of the object by receiving the reflected light on a light receiving surface. The condensing lens 38 is hold by a holding member 36 having a guide function capable of moving it in a prescribed direction.
COPYRIGHT: (C)2004,JPO

公开(公告)号：JP2003287420A

公开(公告)日：2003-10-10

申请号：JP2002088606

申请日：2002-03-27

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： TAKAOKA TAKASHI ,  KAWANISHI SHINYA

IPC: G01C3/06 ,  G01C3/10 ,  G01C25/00 ,  G02B7/32 ,  G03B13/36

CPC classification number: G01C25/00 ,  G01C3/10

Abstract: PROBLEM TO BE SOLVED: To provide a ranging sensor whose output can be easily adjusted. SOLUTION: The ranging sensor comprises: a case subassembly 10 having a light-emitting element and a light receiving element inside; and a lens case subassembly 30 that has a light-projecting lens 38 for projecting emission light that is emitted from the light-emitting device to a target and a condensing lens 38 for condensing reflection light that is reflected from the target, and is attached to the front of the case subassembly 10. The condensing lens 38 is fitted to the case subassembly 30 so that it can freely travel and the condensing lens 38 is fixed after output adjustment. COPYRIGHT: (C)2004,JPO

Abstract translation: 要解决的问题：提供可以容易地调节其输出的测距传感器。 解决方案：测距传感器包括：壳体子组件10，其内部具有发光元件和光接收元件; 以及透镜盒子组件30，其具有用于将从发光装置发射的发射光投射到目标的投光透镜38和用于聚集从目标反射的反射光的聚光透镜38，并且被附接到 集合透镜38装配到壳体子组件30，使得它可以自由行进并且在输出调节之后固定聚光透镜38。 版权所有（C）2004，JPO

公开(公告)号：JP2012150844A

公开(公告)日：2012-08-09

申请号：JP2012111787

申请日：2012-05-15

Applicant: Fenwall Controls Of Japan Ltd ,  Sharp Corp ,  シャープ株式会社 ,  日本フェンオール株式会社

Inventor： OKABAYASHI NAONORI ,  TAKAOKA TAKASHI ,  MIZUO KAZUHIRO

IPC: G08B17/107

Abstract: PROBLEM TO BE SOLVED: To provide a smoke sensor which can improve accuracy of smoke detection and can perform stable smoke detection.SOLUTION: According to a smoke sensor, initial values of output signals from first and second amplifiers 5 and 6 are stored as first and second initial values in a storage unit 16B. The initial values are stored in the storage unit 16B on a stage of e.g., shipping from a factory. A value V2(0)/V2(k) is obtained by dividing a second initial value V2(0) with a value V2(k) of the output signal from the second amplifier 6 measured at a certain time after installation. By multiplying a value V1(k) of the output signal from the first amplifier 5 measured at that time with the value V2(0)/V2(k), influences exerted upon the value V1(k) of the output signal by variation caused by the ambient temperature during the measurement or aging of a light-emitting element are corrected and reduced. When a determination value obtained by subtracting the first initial value V1(0) from a value V1(k)×V2(0)/V2(k) of the output signal after the correction exceeds a detection threshold value, a signal processing circuit 16A then outputs a smoke detection signal.

Abstract translation: 要解决的问题：提供一种能够提高烟雾检测精度并可以进行稳定的烟雾检测的烟雾传感器。 解决方案：根据烟雾传感器，来自第一和第二放大器5和6的输出信号的初始值作为第一和第二初始值存储在存储单元16B中。 初始值存储在存储单元16B中，例如从工厂运送的阶段。 通过将第二初始值V2（0）与在安装后的某个时间测量的来自第二放大器6的输出信号的值V2（k）相除来获得值V2（0）/ V2（k）。 通过将此时测得的第一放大器5的输出信号的值V1（k）乘以值V2（0）/ V2（k），通过变化引起对输出信号的值V1（k）的影响 在发光元件的测量或老化期间的环境温度被校正和减少。 当从校正后的输出信号的值V1（k）×V2（0）/ V2（k）减去第一初始值V1（0）而得到的判定值超过检测阈值时，信号处理电路16A 然后输出烟雾检测信号。 版权所有（C）2012，JPO＆INPIT

公开(公告)号：JP2008051764A

公开(公告)日：2008-03-06

申请号：JP2006230724

申请日：2006-08-28

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： TAKAOKA TAKASHI

IPC: G01C3/06 ,  G01S17/48

CPC classification number: G01B11/026 ,  G01C3/085

Abstract: PROBLEM TO BE SOLVED: To provide a compact and highly accurate range finding sensor, and an electronic device having the sensor mounted.
SOLUTION: A light emitting element 12 for projecting light to an object 30 whose distance is to be measured, and a light receiving element 13 for receiving light reflected on the object 30 are provided on an upper surface (reference plane) of a substrate 11, and the elements 12 and 13 are resin-sealed with translucent resin seals 15 and 16, respectively. Further, the outer periphery of the seals 15 and 16 is covered with a light-shielding resin seal 17. A light emitting slit 18 for narrowing a flux of the light projected onto the object 30 and a light receiving slit 19 for narrowing a flux of the light reflected by the object 30 are provided on the seal 17, thereby completing the range finding sensor 10. The light-shielding resin seal 17 is formed so that a top surface 17t closer to the light emitting element 12 from the light receiving slit 19 is leveled with a bottom face 17b farther from it.
COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：提供紧凑且高精度的测距传感器以及安装有传感器的电子设备。 解决方案：用于将光投射到要测量距离的物体30的发光元件12和用于接收在物体30上反射的光的光接收元件13设置在物体30的上表面（参考平面）上 基板11和元件12和13分别用半透明树脂密封件15和16树脂密封。 此外，密封件15和16的外周被遮光树脂密封件17覆盖。用于使投射到物体30上的光的光通量变窄的光发射狭缝18和用于使物体30的通量变窄的光接收狭缝19 由物体30反射的光被设置在密封件17上，从而完成测距传感器10.遮光树脂密封件17形成为从光接收狭缝19靠近发光元件12的顶面17t 与底面17b平齐。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2004317253A

公开(公告)日：2004-11-11

申请号：JP2003110617

申请日：2003-04-15

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： TAKAOKA TAKASHI

IPC: G01C3/06 ,  G02B7/28 ,  G02B7/32

Abstract: PROBLEM TO BE SOLVED: To provide a range-finding sensor capable of output combination according to use by outputting an analog output and a digital output.
SOLUTION: This range-finding sensor is equipped with a PSD 12 for receiving reflected light from a range-finding object relative to light projection to the range-finding object by an LED 16.1, a signal processing part 14 for converting into a signal having the level corresponding to the measuring distance to the range-finding object based on the light-receiving position for receiving the reflected light on the PSD 12, an output terminal 22 for outputting a converted signal converted by the signal processing part 14 as an analog signal to the outside, a comparison part 28 for comparing the signal level of the analog signal with the set signal level set beforehand, and an output terminal 24 for outputting a digital signal for displaying a comparison result by the comparison part 28.
COPYRIGHT: (C)2005,JPO&NCIPI