WO2020175676A1 - 光電センサ及びその製造方法 - Google Patents
光電センサ及びその製造方法 Download PDFInfo
- Publication number
- WO2020175676A1 WO2020175676A1 PCT/JP2020/008345 JP2020008345W WO2020175676A1 WO 2020175676 A1 WO2020175676 A1 WO 2020175676A1 JP 2020008345 W JP2020008345 W JP 2020008345W WO 2020175676 A1 WO2020175676 A1 WO 2020175676A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cover lens
- light
- housing
- photoelectric sensor
- opening
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
- G01D11/24—Housings ; Casings for instruments
- G01D11/26—Windows; Cover glasses; Sealings therefor
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C3/00—Measuring distances in line of sight; Optical rangefinders
- G01C3/02—Details
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/16—Antifouling paints; Underwater paints
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
- G01D11/24—Housings ; Casings for instruments
- G01D11/245—Housings for sensors
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V8/00—Prospecting or detecting by optical means
- G01V8/10—Detecting, e.g. by using light barriers
- G01V8/12—Detecting, e.g. by using light barriers using one transmitter and one receiver
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
- G02B1/18—Coatings for keeping optical surfaces clean, e.g. hydrophobic or photo-catalytic films
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
- G02B19/0033—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use
- G02B19/0085—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with both a detector and a source
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/0006—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 with means to keep optical surfaces clean, e.g. by preventing or removing dirt, stains, contamination, condensation
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
- G02B19/0033—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use
- G02B19/0047—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source
- G02B19/0052—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source the light source comprising a laser diode
Definitions
- the present invention relates to a photoelectric sensor and a method for manufacturing the photoelectric sensor.
- a photoelectric sensor is attached to, for example, a production line or equipment of a factory, and is sometimes used to detect or not detect a work.
- a light projecting unit that emits light and a light receiving unit that receives the light are generally housed inside a case (hereinafter, referred to as a housing).
- a board on which electronic components forming the signal processing section are mounted is housed inside the housing.
- the casing has an optical opening for passing the detection light emitted from the light projecting section and the return light received by the light receiving section, and a cover or a cover body type lens as an optical component is arranged in the opening.
- the cover lens functions as a light projecting lens through which the detection light passes and a light receiving lens through which the reflected light passes, or as protection of these lenses.
- Patent Document 1 An example in which the element or the light receiving element is arranged on the front side is described in Patent Document 1 below.
- Patent Document 1 Japanese Unexamined Patent Publication No. 20000-7-305063
- Patent Document 1 describes that the surface of the cover lens is coated with a heat- or photo-crosslinkable resin composition.
- a heat- or photo-crosslinkable resin composition As a measure against contamination by the above-mentioned cleaning water, processing oil, dust, etc. Has the problem of not having enough functionality.
- an antifouling coat to the cover lens.
- the material constituting the antifouling coat has a high melting point, so the antifouling coat material does not melt sufficiently
- an adhesive with an adhesive
- the material that constitutes the antifouling coating material is generally more common than when only the base material is used. Since it contains a fluorine-based compound, there is a problem in that the adhesiveness between the cover lens and the housing is deteriorated.
- the photoelectric sensor is used in an environment where it is contaminated with processing oil or dust, it is desirable to be able to bond the cover lens to the housing while preventing the cover lens from being contaminated.
- an object of the present invention is to provide a photoelectric sensor including a power lens that can be firmly bonded to a housing while sufficiently preventing contamination.
- a photoelectric sensor is a photoelectric sensor in which at least one of a light-projecting unit that emits light and a light-receiving unit that receives light is housed in a housing, and A cover lens is provided which has an opening for passing at least one of light and light to the light receiving section, covers the opening, and transmits the light, and the cover lens is bonded to an edge portion of the housing defining the opening.
- the outer surface of the cover lens is provided with an antifouling coating, while the part of the inner surface of the cover lens that is in contact with the edge is not provided with an antifouling coating.
- cover lens since the outer surface of the cover lens is provided with the antifouling coat, even when the photoelectric sensor is used in an environment contaminated with cleaning water, processing oil, dust, etc., for example. , It can prevent dirt sufficiently. Also, cover lens ⁇ 2020/175 676 3 ⁇ (:171? 2020 /008345
- the antifouling coating is not applied to the part of the inner surface of the housing that contacts the edge of the housing that defines the opening, the part and the edge of the housing are firmly fixed by, for example, laser welding. Can be joined. As a result, it is possible to provide a photoelectric sensor including a cover lens that can be firmly bonded to the housing while sufficiently preventing dirt.
- the material constituting the antifouling coat may have a one-layer structure in which the coating substrate and the coating agent are chemically crosslinked.
- the portion of the inner surface of the cover lens that is in contact with the edge portion and the housing may be joined by laser welding.
- the portion of the inner surface of the cover lens that is in contact with the edge portion and the housing may be joined with an adhesive.
- the inner surface of the cover lens and the edge portion can be joined by laser welding or an adhesive without using an antifouling coat. Since the material constituting the antifouling coat is generally a fluorine compound, it is possible to prevent the bonding strength from being mechanically weaker than that of the base material when bonding with an adhesive.
- the mark may be printed on the inner surface of the cover lens.
- the mark may be provided at a position that covers the light projecting portion of the cover lens when the cover lens is provided on the housing with the front and back reversed.
- the mark printed on the inner surface of the cover lens is provided at a position that covers the light projecting portion of the cover lens when the cover lens is arranged on the case upside down. Therefore, it is possible to easily discriminate that the cover lens is arranged in the case upside down.
- a photoelectric sensor including a cover lens that can be firmly bonded to a housing while sufficiently preventing dirt.
- FIG. 1 is a perspective view of the photoelectric sensor according to the embodiment as seen from one direction.
- FIG. 2 is a front view of the photoelectric sensor shown in FIG. 1 viewed from the front side. ⁇ 2020/175 676 4 ⁇ (:171? 2020 /008345
- Fig. 38 is a sectional view taken along the line in Fig. 2.
- Fig. 3M is a sectional view taken along the line V 1 -V 2 in Fig. 2.
- FIG. 4 is a view for explaining a state in which the cover lens is fitted into the opening in the opposite manner.
- FIG. 5 is a diagram showing an example of spectral sensitivity characteristics of a light receiving element.
- FIG. 6 is a diagram showing another example of the spectral sensitivity characteristics of the light receiving element.
- FIG. 78 is an explanatory diagram showing a single-layer coating structure.
- FIG. 7 is an explanatory diagram showing a two-layer coating structure.
- FIG. 8 is a cross-sectional view showing a modified example in which the cover lens is fitted from the inside. MODE FOR CARRYING OUT THE INVENTION
- the photoelectric sensor 10 includes a housing 12.
- a light projecting section 14 and a light receiving section 16 are housed inside the housing 12.
- the housing 12 has an opening 1 2 1 for passing the detection light emitted from the light emitting portion 14 and the return light received by the light receiving portion 16 and the cover lens 50 is arranged in this opening 1 2 1.
- a teach button 18 and an indicator 22 are provided on the outer surface of the housing 12, for example.
- the housing 12 in the present embodiment is not limited to the illustrated example. It suffices that at least one of the light projecting section 14 and the light receiving section 16 is housed therein.
- the light projecting unit 14 projects light onto an object to be detected, and has a light emitting element and a light projecting lens.
- the light emitting element is, for example, a laser diode, and its optical axis X is parallel to the front-back direction.
- the light receiving section 16 receives the reflected light of the light projected on the object to be detected, and has a light receiving element and a light receiving lens. ing.
- the light receiving element is, for example, a two-divided photodiode or a position detecting element.
- T ⁇ F Time of F li ght
- the principle of triangulation can be used.
- the light emitted from the light emitting element is projected onto the object to be detected through the light projecting lens, and the light reflected by the object to be detected passes through the light receiving lens. And forms an image on the light receiving element.
- the light receiving element outputs two light receiving signals according to the image forming position, and sends them to the control circuit via the amplifier.
- the amplifier and control circuit are built into the photoelectric sensor 10, and the control circuit compares the position signal value calculated from the two received light signals with a threshold value to obtain the distance to the detected object.
- the teach button 18 functions as a setting unit that changes the setting of the sensor body, and has a function of setting a threshold value in response to an input operation from the outside, for example.
- the threshold value refers to a reference value for determining the presence or absence of detection of the detected object or the distance to the detected object in the photoelectric sensor 10, which is one of sensitivity parameters for adjusting the sensitivity. Is one.
- the sensitivity parameter includes the power of the light emitted from the light projecting unit 14, that is, the projection intensity, the amplification factor of the amount of light received by the light receiving unit 16, that is, the gain. For example, in the case of a transparent object with a low reflectance, a high projection intensity is set.
- the teaching process for setting the sensitivity parameter including at least the threshold value is performed, and the sensitivity parameter including at least the threshold value is automatically set to a certain value.
- the teaching process includes, for example, a one-point teaching process and a two-point teaching process, the contents of which are described in the past patent documents by the applicant (for example, Japanese Patent Laid-Open No. 2 0 8 8 -2 9 8 6 1 4). The detailed description is omitted here.
- the indicator 22 is lit according to the power supply status and the detection status of the photoelectric sensor 10.
- the indicator 22 has a power lamp that lights when the power is on and an operation indicator that lights when an object is detected. ⁇ 2020/175 676 6 ⁇ (:171? 2020 /008345
- the power supply lamp and operation indicator lamp are each made up of, for example, 1-day 0 and light up in different display colors.
- the case 12 is made of, for example, resin or metal and has a substantially rectangular parallelepiped shape.
- the case 12 has a front surface 31, a back surface 32, a top surface 33, a bottom surface 34, a side surface 35, and a side surface 36 with respect to the six surfaces forming the rectangular parallelepiped.
- the front surface 31 and the back surface 32 face each other with the inside of the housing 12 sandwiched therebetween.
- the top surface 33 and the bottom surface 34 are opposed to each other with the inside of the housing 12 interposed therebetween, and the side surfaces 35 and 36 are opposed to each other with the inside of the housing 12 interposed therebetween. ..
- the front surface 31 and the back surface 32 are formed so that the vertical direction is longer than the horizontal direction.
- top surface 33 and the bottom surface 34 are formed so that the front-rear direction is longer than the left-right direction, and the side surfaces 35 and 36 are formed so that the up-down direction is longer than the front-rear direction.
- the top surface 33 is adjacent to the front surface 31 and extends in a direction orthogonal to the front surface 31 and the back surface 32.
- the top surface 33 is provided with an indicator 22 and a teach button 18 in order from the front surface 31 side.
- a cable 40 is connected to the bottom surface 34 of the casing 12.
- the cable 40 is used, for example, to transmit a detection signal indicating the detection result of the photoelectric sensor 10 to the outside of the photoelectric sensor 10.
- a structure which is usually provided as a photoelectric sensor in the housing 12 for example, a light projecting element, a light receiving element, a light projecting circuit (not shown) for driving the light projecting element, and a light receiving signal of the light receiving element are electrically processed.
- Substrate (not shown) on which a light receiving circuit is mounted is housed.
- the above-mentioned cable 40 has a cable core wire (not shown) inside thereof, and the cable core wire passes through the inside of the housing 12 and is connected to the above-mentioned substrate arranged in the housing 12.
- substantially rectangular parallelepiped shape regarding the case 12 does not mean a rectangular parallelepiped whose interior angles are all 90°, but includes at least one chamfered corner of such a rectangular parallelepiped. ..
- a cover lens 50 transparent acrylic cover lens
- the photoelectric sensor 10 has a cover lens on the front of the housing 12. ⁇ 2020/175 676 7 ⁇ (: 171-1? 2020/008345
- the cover lens 50 has a function of covering the opening 1 21 and transmitting light.
- the cover lens 50 is bonded to the edge portion 1 2 1 3 (see FIG. 2) of the housing 12 that defines the opening 1 21.
- FIG. 2 is a front view of the photoelectric sensor 100 shown in FIG. 1 viewed from the front side.
- Figure 38 shows FIG. 6 is a cross-sectional view taken along a line.
- FIG. 3A is a cross-sectional view taken along the line V--V in FIG.
- an antifouling coat 61 is applied to the outer surface 5 1 (front surface) of the cover lens 50.
- a material containing a fluorine compound is used for the antifouling coat 61.
- the material used for the antifouling coat 61 is not limited to this example, and for example, a material containing at least one of a silicon compound, a silica compound, or a titanium oxide compound is used.
- these antifouling coating materials are chemically cross-linked with the base material, and have a one-layer structure (one-layer coating constitution). The one-layer coating structure and the two-layer coating structure will be described below.
- Fig. 78 shows an example in which the coating agent formed on the surface of the cover lens 50 has a single coating structure
- Fig. 7M shows the coating agent formed on the surface of the cover lens 50. This is an example of a layer coating configuration.
- the normal coating agent has a two-layer coating configuration (coating agent 610 and coating substrate 620), as shown in Fig. 7A.
- the problems that occur in this two-layer coating configuration will be described with reference to FIGS.
- Fig. 5 shows the spectral sensitivity characteristics (graph 0 1) when there is an optical thin film layer with one coating in the light receiving path from the cover lens 50 to the light receiving element.
- Figure 6 shows the two-layer coating (1 9 4 5 n thick 3 1 2 2 coating (refractive index 1.46)) and 800 thick layer in the path from the cover lens 50 to the light receiving element. 3 ⁇ 3 1 ⁇ 1 4 coating (refractive index 2.0 5) between the in the case of the coatings structure) of adjacent two layers, the light receiving portion 1 6 of the photoelectric sensor 1 ⁇ of (light receiving element) ⁇ 2020/175 676 8 ⁇ (:171? 2020 /008345
- FIGS. 5 and 6 show the spectral sensitivity characteristics (Graph 02).
- the horizontal axis of FIGS. 5 and 6 represents the wavelength of light, and the vertical axis represents the spectral sensitivity.
- Fig. 5 it can be seen that the visible light region is transmitted and the ultraviolet and infrared light regions are almost cut.
- interference due to the two-layer coating causes undulations in the spectral sensitivity characteristics, resulting in a large increase or decrease in the photosensitivity with respect to small wavelength changes. You know that it will happen.
- Photoelectric sensors often use single wavelength red (about 660 1 ⁇ 111) or infrared (about 915 0 ⁇ 111) 1_ opening and 1_ opening as shown in Figure 6.
- a two-layer coating agent (coating substrate 620 and coating agent 610 shown in Fig. 7) is chemically crosslinked to form a single layer coating.
- Agent 61 (Fig. 78) constitutes an antifouling coat. Since the antifouling coat is composed of a single layer of coating agent 61, the spectral sensitivity characteristics of the cover lens 50 compared to the case of the double layer coating agent as described with reference to Figs. 5 and 6. , The fluctuation at the time of wavelength fluctuation is reduced, and the fluctuation slope becomes stable. As a result, stable optical characteristics can be obtained even when the temperature characteristics of the light source and coating agent change.
- the antifouling coating 61 when the antifouling coating 61 is applied to the entire inner surface 52 of the cover lens 50, the melting point of the material forming the antifouling coating 61 is high, and thus the cover lens 50 It is difficult to join the case to the case 12 by laser welding.
- the adhesive cover lens 50 and casing 1 are used. The bondability of 2 deteriorates.
- the edge portion 1 2 1 3 of the housing 12 that defines the opening 1 2 1 is in contact. junction (hereinafter, referred to as a back side rim portion 5 2 3 of the cover lens 5 0), the proof ⁇ 2020/175 676 9 ⁇ (:171? 2020 /008345
- antifouling coating 61 is applied to at least the back side rim portion 5 2 3, except for the back side rim portion 5 2 3 of the inner surface 5 2 of the cover lens 5 0
- the part may or may not be provided with an antifouling coat 61.
- the anti-fouling coat 6 1 is applied to the part of the cover lens 50 other than the part in contact with the case 12. It may or may not be applied.
- the material of the cover lens base material is not particularly limited, but for example, a material containing at least one of acrylic resin, polycarbonate resin, polyurea resin and glass is used.
- the cover lens 50 is manufactured by the following steps. According to this step, the antifouling coating can be efficiently manufactured on one surface of the base material.
- the coating agent is cured by the drying and irradiation steps. At this time, by irradiation, a fluorine layer is deposited on the surface of the coating agent to form an antifouling coat 61 layer.
- the mark 70 is printed on the back surface by a method such as silk screen printing.
- Individual cover lenses 50 are cut out by a method such as milling.
- the photoelectric sensor 10 is manufactured by assembling the housing 12 and the cover lens 50 by the following steps.
- the manufactured cover lens 50 is arranged at a position that covers the opening 1 21 of the housing 12.
- the back side rim portion 5 2 8 cover lens 5 0, the edge 1 2 1 3 of the housing 1 2, a state of contact.
- a mark 70 is printed on the inner surface 52 of the cover lens 50. Mark
- the 70 is installed at a position that covers the light projecting portion 14 of the cover lens 50 as shown in FIG. There is.
- the cover lens 50 is fitted into the opening 1 2 1 of the housing 12 by printing the mark 70 on the cover lens 50 in this way (that is, the edge of the inner surface 5 2 of the cover lens 50).
- the cover lens 50 is attached to the periphery of the opening 1 21 in the body 12), it is possible to determine whether the cover lens 50 is upside down. It is possible to prevent it from being installed in the case 1 and 2.
- the mark 70 printed on the inner surface 52 of the cover lens 50 is, for example, the center axis of the cover lens 50 shown in Fig. 4 (a vertical line passing through the center of the cover lens 50 in the left-right direction). It is preferable that it is provided at a position that does not straddle the (axis extending in the direction).
- the position is not limited to such a position, and as described above, when the power bar lens 50 is fitted into the housing 12 upside down, the mark 70 is located at a position where it covers the light projecting portion 14. If it exists, it may be provided at a position straddling the above-mentioned central axis, and its position is not particularly limited.
- the mark 70 in the present embodiment has a function of determining that the cover lens 50 is fitted in the case 12 upside down.
- the cover lens 50 is fitted from the outside to the inside of the housing 12; however, as shown in FIG. 8, the cover lens 50 is fitted from the inside to the outside of the housing 12. It may be one that fits 50. in this case ⁇ 2020/175 676 1 1 ⁇ (:171? 2020/008345
- the area 5 1 squeezed with the antifouling coat 61 is formed to be the same as or slightly larger than the opening 1 21. Since the cover lens 50 is formed larger than the opening 1 21 of the housing 12, the area 5 1 3 where the antifouling coat 6 1 is not applied has the antifouling coat 6 1 applied. It is formed so as to surround the area 5 1 13.
- the region 5 13 is another example of the joint portion that is in contact with the edge portion 1 2 1 3 of the housing 12 as is the case with the back surface peripheral portion 5 2 3 described above.
- a photoelectric sensor 10 for accommodating at least one of a light projecting portion 14 for emitting light and a light receiving portion 16 for receiving light in a housing 12,
- the housing 12 has an opening 1 2 1 that allows at least one of the light from the light projecting portion 14 and the light to the light receiving portion 16 to pass therethrough,
- a cover lens 50 that covers the opening 1 21 and transmits light is disposed, and the cover lens 50 is attached to the edge 1 2 1 3 of the housing 12 that defines the opening 1 2 1. Cage,
- the outer surface 5 1 of the cover lens 50 is coated with an antifouling coat 61, while the inner surface 5 2 of the cover lens 50 is in contact with the edge 1 2 1 3 with an antifouling coating 6 1 Not applied, photoelectric sensor 10 Explanation of symbols
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Abstract
Description
Claims
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020217019462A KR102688541B1 (ko) | 2019-02-28 | 2020-02-28 | 광전 센서 및 그 제조 방법 |
| EP20762210.1A EP3933872B1 (en) | 2019-02-28 | 2020-02-28 | Photoelectric sensor and method for manufacturing same |
| CN202080008335.1A CN113272928B (zh) | 2019-02-28 | 2020-02-28 | 光电传感器以及其制造方法 |
| US17/424,886 US11920951B2 (en) | 2019-02-28 | 2020-02-28 | Photoelectric sensor and method for manufacturing same |
| JP2021502400A JP7111244B2 (ja) | 2019-02-28 | 2020-02-28 | 光電センサ及びその製造方法 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2019036501 | 2019-02-28 | ||
| JP2019-036501 | 2019-02-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2020175676A1 true WO2020175676A1 (ja) | 2020-09-03 |
Family
ID=72239729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2020/008345 Ceased WO2020175676A1 (ja) | 2019-02-28 | 2020-02-28 | 光電センサ及びその製造方法 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US11920951B2 (ja) |
| EP (1) | EP3933872B1 (ja) |
| JP (1) | JP7111244B2 (ja) |
| KR (1) | KR102688541B1 (ja) |
| CN (1) | CN113272928B (ja) |
| WO (1) | WO2020175676A1 (ja) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2023096903A (ja) * | 2021-12-27 | 2023-07-07 | 株式会社レゾナック | 光電センサーの製造方法 |
| WO2025248946A1 (ja) * | 2024-05-31 | 2025-12-04 | 浜松ホトニクス株式会社 | 光学装置 |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP1675724S (ja) * | 2020-02-28 | 2021-01-04 | ||
| CN114563023A (zh) * | 2022-03-09 | 2022-05-31 | 武汉东湖学院 | 可均匀接受光信号的光电传感器及其使用方法 |
| JP1756734S (ja) * | 2023-03-15 | 2023-11-02 | ||
| JP1756735S (ja) * | 2023-03-15 | 2023-11-02 | ||
| JP1756737S (ja) * | 2023-03-15 | 2023-11-02 | ||
| JP1756736S (ja) * | 2023-03-15 | 2023-11-02 | ||
| JP1762885S (ja) * | 2023-08-25 | 2024-02-05 | ||
| JP1762942S (ja) * | 2023-08-25 | 2024-02-05 |
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| JP2007305673A (ja) | 2006-05-09 | 2007-11-22 | Mitsubishi Rayon Co Ltd | 光電センサ |
| JP2008298614A (ja) | 2007-05-31 | 2008-12-11 | Omron Corp | センサ |
| JP2018152227A (ja) * | 2017-03-13 | 2018-09-27 | オムロン株式会社 | センサ機器 |
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| JPS6410940A (en) | 1987-07-02 | 1989-01-13 | Mitsubishi Electric Corp | Food feeding and heating apparatus |
| US6337129B1 (en) * | 1997-06-02 | 2002-01-08 | Toto Ltd. | Antifouling member and antifouling coating composition |
| US5879626A (en) * | 1997-07-30 | 1999-03-09 | Allen-Bradley Company, Llc | Photoelectric sensor having dust removal apparatus |
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- 2020-02-28 EP EP20762210.1A patent/EP3933872B1/en active Active
- 2020-02-28 WO PCT/JP2020/008345 patent/WO2020175676A1/ja not_active Ceased
- 2020-02-28 US US17/424,886 patent/US11920951B2/en active Active
- 2020-02-28 KR KR1020217019462A patent/KR102688541B1/ko active Active
- 2020-02-28 JP JP2021502400A patent/JP7111244B2/ja active Active
- 2020-02-28 CN CN202080008335.1A patent/CN113272928B/zh active Active
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2023096903A (ja) * | 2021-12-27 | 2023-07-07 | 株式会社レゾナック | 光電センサーの製造方法 |
| WO2025248946A1 (ja) * | 2024-05-31 | 2025-12-04 | 浜松ホトニクス株式会社 | 光学装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| EP3933872A4 (en) | 2022-11-09 |
| KR20210095179A (ko) | 2021-07-30 |
| EP3933872A1 (en) | 2022-01-05 |
| CN113272928B (zh) | 2025-01-10 |
| EP3933872B1 (en) | 2023-11-01 |
| CN113272928A (zh) | 2021-08-17 |
| JP7111244B2 (ja) | 2022-08-02 |
| US20220082380A1 (en) | 2022-03-17 |
| US11920951B2 (en) | 2024-03-05 |
| KR102688541B1 (ko) | 2024-07-26 |
| JPWO2020175676A1 (ja) | 2021-11-25 |
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