专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

41. 发明专利

JPH03123120A LIGHT RECEIVING CIRCUIT FOR PHOTOELECTRIC SWITCH 失效
公开(公告)号：JPH03123120A
公开(公告)日：1991-05-24
申请号：JP26146989
申请日：1989-10-05
申请人： OMRON TATEISI ELECTRONICS CO
发明人： IMAI SEIJI
IPC分类号： H03K17/78
摘要： PURPOSE:To apply a high reverse bias voltage to a photodetector irrespective of a power source voltage by providing a switching circuit which is opened at the time of light reception and an inductor. CONSTITUTION:By the output of an oscillating circuit 3, a light emitting diode 9 is driven through inverters 7, 8, and lighting is executed intermittently. When the output of the oscillating circuit 3 is in an H level, a transistor TR2 for constituting a switching circuit is conducted, and a power source si supplied through an inductor L and a resistor R2 from the power source. When the output of the oscillating circuit 3 goes to an L level, the transistor TR2 is turned off, therefore, the current of the inductor L is interrupted suddenly and counter electromotive force is generated, and the counter electromotive force is given to a photodiode 5 of the light receiving circuit 4. In such a manner, a reverse bias voltage exceeding a power supply voltage can be applied easily to the photodetector, and the saturation of the light receiving circuit caused by a DC light such as a solar light can be prevented.

42. 发明专利

JPH02285277A PHOTOELECTRIC SWITCH EQUIPPED WITH MUTUAL INTERFERENCE PREVENTING FUNCTION 失效
公开(公告)号：JPH02285277A
公开(公告)日：1990-11-22
申请号：JP10648089
申请日：1989-04-26
申请人： OMRON TATEISI ELECTRONICS CO
发明人： TAMINO SHINYA , IMAI SEIJI
IPC分类号： G01V8/20 , G01S17/02 , H03K17/78
摘要： PURPOSE:To certainly operate mutual interference preventing function by directly inputting the signal from other switch to the light detection means of a photoelectric switch. CONSTITUTION:A photoelectric switch equipped with mutual interference preventing function contains the first and second switch circuits and the respective switch circuits emit pulse lights to the outside corresponding to the output signal of an oscillation circuit to receive said lights and the pulse cycle of the oscillation circuit is changed by a control circuit responding to a light detection signal immediately before the oscillation circuit generates a pulse. A means transmitting the drive state of the light emitting means of the first switch circuit is provided to the light detection means of the second switch circuit. Herein, the floodlight projector of one photoelectric switch 11 emits a floodlight signal from a window 21 to allow the same to be incident to the window 52 of the other photoelectric switch 11 and this light is reflected by mirror surfaces 53, 54 to be incident to the photodetector 5 of the other photoelectric switch 11. As mentioned above, by directly inputting the signal from the other switch to the light detection means of the photoelectric switch, mutual interference preventing function can be certainly operated.

43. 发明专利

JPH01283725A OPTICAL FIBER TYPE PHOTOELECTRIC SWITCH 失效
公开(公告)号：JPH01283725A
公开(公告)日：1989-11-15
申请号：JP11305888
申请日：1988-05-09
申请人： OMRON TATEISI ELECTRONICS CO
发明人： IMAI SEIJI
IPC分类号： H01H35/00 , H03K17/78
摘要： PURPOSE:To make it possible to keep a light reception amount unchanged instead of the changes of luminous efficacy, temperature characteristic and transmission factor by controlling the driving level of a light projection element based on the output of a light reception element. CONSTITUTION:The light of a light projection element 3 is led to a measuring range by an optical fiber 4 for light projection and an optical fiber 11 for measurement and is radiated to the measuring range from the end of the optical fiber 4 for light projection. Also the optical fiber 11 for measurement is provided in parallel to an optical fiber 6 for light reception and is led to a second light reception element 12 inside the main body of a photoelectric switch. And the light projection level of the light projection element 3 is controlled so that the light reception amount of the second light reception element 12 may be constant. Accordingly, it is possible to change the driving level of the light projection element 3 to keep the light reception amount always constant even when the luminous efficacy of the light projection element 3 is deteriorated or the temperature characteristics of light projection and reception elements are deteriorated or when the light reception amount is changed because of the curved state of the optical fiber for light projection and reception or the deterioration of the transmission factor.

44. 发明专利

JPS61264213A PHOTOENCODER 失效
公开(公告)号：JPS61264213A
公开(公告)日：1986-11-22
申请号：JP10664285
申请日：1985-05-17
申请人： OMRON TATEISI ELECTRONICS CO
发明人： MATSUMOTO HIDETOSHI , SHIBATA KUNIHARU , IMAI SEIJI , FUKAMIZU HIROSHI
IPC分类号： G01D5/26 , G01D5/36
摘要： PURPOSE:To make a special adjusting work unnecessary by providing a current amplifying means, a peak value holding means, and a comparing means which outputs a binarization signal in a photodetecting circuit of a photoencoder. CONSTITUTION:When passing a slit disc (omitted in the figure) to strike a photodiode, the light from an LED 1 tries to flow a current I to the negative terminal of the first operational amplifier 3. However, the current I is flowed to an output terminal P through a resistance R2 because the input impedance of the operational amplifier 3 is sufficiently high. At this time, the voltage in the output terminal P of the first operational amplifier 3 is made lower than a reference voltage Vr by a voltage drop P2I of the resistance R2, and the output of the operational amplifier 3 becomes a waveform (a) approximating a sine wave. Since resistances R3 and R4 have the same value, the input of the positive terminal of the second operational amplifier 5 has a half amplitude of the output of the operational amplifier 3 and is as shown by a broken line (b). In a peak value holding circuit 8, the second operational amplifier 5 and a diode 6 constitute a buffer, and the buffer holds the negative peak value of the amplitude at a connection point A, and this value [indicated by a broken line (c)] appears at a connection point B.

45. 发明专利

JP2003243716A LIGHT SOURCE COMPONENT 审中-公开
公开(公告)号：JP2003243716A
公开(公告)日：2003-08-29
申请号：JP2002035024
申请日：2002-02-13
申请人： OMRON TATEISI ELECTRONICS CO
发明人： IURA SHINICHIRO , IMAI SEIJI , KAMEI TAKASHI , GONDO KIYOHIKO , FUJITA CHIKU
IPC分类号： H01L33/04 , H01L33/56 , H01L33/58 , H01L33/00
摘要： PROBLEM TO BE SOLVED: To provide a light source component where a fitting space is narrowed and the fitting structure is simplified. SOLUTION: A light emitting diode chip (2) becoming a light source and a photodiode chip (3) becoming the light quantity monitor of light emitted from the light emitting diode chip are integrally kept on the same stem (10). The light emitting diode chip (2) has a chip front face emitting main light and chip sides emitting side light beams. The photodiode chip has a light receiving face sensitive to incident light. Both diode chips (2 and 3) are positioned in such a way that at least a part of the side light beams emitted from the chip sides of the light emitting diode chip (2) is made incident on the light receiving face of the photodiode chip (3). COPYRIGHT: (C)2003,JPO

46. 发明专利

JP2001222788A SENSOR SYSTEM 失效
公开(公告)号：JP2001222788A
公开(公告)日：2001-08-17
申请号：JP2000280358
申请日：2000-09-14
申请人： OMRON TATEISI ELECTRONICS CO
发明人： OSAKO KAZUNARI , IMAI SEIJI , SATO TOSHITAKA , KAMEI TAKASHI
IPC分类号： G08C19/00 , G08C23/06 , H01H35/00 , H04L12/28
摘要： PROBLEM TO BE SOLVED: To provide a sensor system which facilitates the setting or adjustment operations. SOLUTION: Plural sensor units which can be mounted close and in parallel to each other and also has each set inherent address are prepared together with a mobile console that can be connected at least to one of these sensor units. Then each sensor unit has a connector means to transmit and receive signals to and from its both adjacent sensor units and a data transfer means which transfers data received from one of both adjacent sensor units via its connector means to the other adjacent sensor unit via its connector means. In such a constitution, the data can be transmitted from the mobile console to the sensor units or vice versa.

47. 发明专利

JPH11225057A PHOTOELECTRIC SENSOR 失效
公开(公告)号：JPH11225057A
公开(公告)日：1999-08-17
申请号：JP2713898
申请日：1998-02-09
申请人： OMRON TATEISI ELECTRONICS CO
发明人： IMAI SEIJI , KAMEI TAKASHI
IPC分类号： H03K17/78
摘要： PROBLEM TO BE SOLVED: To easily set sensitivity by setting a threshold, based on a photodetecting level of a prescribed period after the time point of switching from a sensitivity setting mode to another mode, thus facilitating operation in adjusting sensitivity. SOLUTION: Upon switching to an operation mode, a flood pulse is outputted by a first duty ratio equal to the operation mode to drive a flood element 3. Then, first and second temporary thresholds Vth1 and Vth2 are set to the levels of the upper/lower prescribed values of an obtained photodetecting level. Next, the output of the flood pulse of the first duty ratio is continued to check whether the photodetective output of not smaller than the value Vth1 or the photodetective output of not larger than the value Vth2 can be obtained from a photodetective circuit 5. In the case of switching a mode switching switch from TEACH to RUN in a state of making a detecting object to approach, as the photodetecting level is deteriorated to be not larger than the value Vth2 when the object moves out from a detecting area, Vth2 is made a threshold. In the case of switching similarly under the condition where the object does not approach in a similar procedure, Vth1 is made a true threshold Vth.

48. 发明专利

JPH11225056A PHOTOELECTRIC SENSOR AND ITS FLOODING METHOD 失效
公开(公告)号：JPH11225056A
公开(公告)日：1999-08-17
申请号：JP2713798
申请日：1998-02-09
申请人： OMRON TATEISI ELECTRONICS CO
发明人： IMAI SEIJI , KAMEI TAKASHI , GONDO KIYOHIKO , HIGUCHI TOSHIYUKI
IPC分类号： H03K17/78
摘要： PROBLEM TO BE SOLVED: To facilitate the visual confirmation of a flood spot without complicating the constitution of a flood circuit by varying the lighting timing of a flood element so as to vary a flooding amount. SOLUTION: A flood part consists of the flood element 3 of a light emitting diode, etc., and a flood circuit 2 such as a switching transistor, a resistor. A flood processing part 1a within a microcomputer 1 generates a flood pulse with a fixed timing at the time of normally detecting an object. For adjusting an optical axis and confirming a flood spot, the flood pulse is generated so as to increase a light quantity more than this and is outputted the circuit 2. As a switching transistor is turned on to drive the element 3 when the flood pulse from the microcomputer 1 is at a high level, a flood current is always constant. Visibility is improved by using a red light emitting diode of high visibility as the element 3.

49. 发明专利

JPH08288819A PHOTOELECTRIC SENSOR 失效
公开(公告)号：JPH08288819A
公开(公告)日：1996-11-01
申请号：JP11389495
申请日：1995-04-14
申请人： OMRON TATEISI ELECTRONICS CO
发明人： IMAI SEIJI , NODA TOMOHITO
IPC分类号： H03K17/78
摘要： PURPOSE: To easily adjust the sensitivity of a photoelectric sensor without using such a switch circuit that switches the projection current and the amplification degree by using a means that changes the time width when the coincidence is secured between the projection and light receiving signals and can adjust the sensitivity of the photoelectric sensor. CONSTITUTION: A microcomputer 1 consists of a CPU, a memory which stores the programs and data, and an input/output interface. The projection signal of the microcomputer 1 is supplied to a projection circuit 2. Then a projection element 3 is driven by the circuit 2 to emit light on an object detection area, and a light receiving element 4 outputs the output of a light receiving circuit 5 via a synchronous circuit 6. An object is decided on the level of the output that passes through the circuit 6. Furthermore, a sensitivity input part 9 is connected to the microcomputer 1 to input the sensitivity of the photoelectric sensor. Then the time width when the coincidence is secured between the projection and synchronizing signals is varied based on the input signal supplied from the part 9. Thus, the sensitivity of the photoelectric sensor can be adjusted.

50. 发明专利

JPH08241657A ELECTRONIC APPARATUS 失效
公开(公告)号：JPH08241657A
公开(公告)日：1996-09-17
申请号：JP7057395
申请日：1995-03-03
申请人： OMRON TATEISI ELECTRONICS CO
发明人： NAKAJIMA HIROTAKA , IMAI SEIJI , SHIMOKAWA SATORU
IPC分类号： H01L31/02 , H01H35/00
摘要： PURPOSE: To enhance the sealing tightness by furnishing a partitioning plate at the opening of a case, fitting a cover as enclosing the opening, deforming and holding the edge of the case opening, and performing the flexural caulking process with a large force. CONSTITUTION: An interior structure 4 is inserted from an opening 2 provided at the over-part of a case 1, and a partitioning plate 8 is installed in grooves 3b, 3c provided at the front surface of an opening 3. The partitioning plate 8 consists of a thin and long member of metal, has notches at the two inner sides, is fitted in the left and the right groove 3a, 3b of the opening 3, and held by the case 1. An O-ring 9 is fitted in the groove 3a to cover the opening 3, and it is inserted to a frame 11 holding a cover glass 10 approx. in the same shape as the opening 3 and mounted to the front surface of the opening 3. After attaching the cover, the left and right ridges of the opening 3 are folded from the broken line to the solid as illustrated, and the fixation of the plate 8, cover glass 10, and frame 11 is established.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式