WO2012081409A1 - 光センサ用部品 - Google Patents

光センサ用部品 Download PDF

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Publication number
WO2012081409A1
WO2012081409A1 PCT/JP2011/077772 JP2011077772W WO2012081409A1 WO 2012081409 A1 WO2012081409 A1 WO 2012081409A1 JP 2011077772 W JP2011077772 W JP 2011077772W WO 2012081409 A1 WO2012081409 A1 WO 2012081409A1
Authority
WO
WIPO (PCT)
Prior art keywords
optical sensor
lens
ribs
sensor component
mold
Prior art date
Application number
PCT/JP2011/077772
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
靖弘 田邉
浩仁 林
中村　文宣
Original Assignee
ナルックス株式会社
株式会社村田製作所
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ナルックス株式会社, 株式会社村田製作所 filed Critical ナルックス株式会社
Priority to CN201180059368.XA priority Critical patent/CN103261856B/zh
Priority to GB1311521.7A priority patent/GB2500346B/en
Priority to JP2012548724A priority patent/JP5499257B2/ja
Publication of WO2012081409A1 publication Critical patent/WO2012081409A1/ja

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/02—Details
    • G01J1/0204—Compact construction
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/02—Details
    • G01J1/0271—Housings; Attachments or accessories for photometers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/02—Details
    • G01J1/04—Optical or mechanical part supplementary adjustable parts
    • G01J1/0403—Mechanical elements; Supports for optical elements; Scanning arrangements
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/02—Details
    • G01J1/04—Optical or mechanical part supplementary adjustable parts
    • G01J1/0407—Optical elements not provided otherwise, e.g. manifolds, windows, holograms, gratings
    • G01J1/0411—Optical elements not provided otherwise, e.g. manifolds, windows, holograms, gratings using focussing or collimating elements, i.e. lenses or mirrors; Aberration correction

Definitions

  • the present invention relates to an optical sensor component.
  • Infrared sensors for detecting the position and movement of the human body are widely used in home appliances such as air conditioners and crime prevention equipment.
  • An optical sensor including such an infrared sensor is used in combination with an optical sensor component including a lens for condensing light from the outside.
  • FIG. 14 is a diagram showing a conventional configuration in which the optical sensor 1201 and the optical sensor component 1101 are combined.
  • An optical sensor component 1101 including a lens is configured to engage with the optical sensor 1201.
  • Such an optical sensor and an optical sensor component are described in Patent Document 1, for example.
  • the optical sensor component according to the first aspect of the present invention is an integrally formed cylindrical optical sensor component used in combination with an optical sensor.
  • the one end face of the tube is combined with the photosensor, and the other end of the tube is composed of a lens unit that collects light from the outside on the photosensor.
  • the optical sensor component includes a plurality of ribs connected to the lens portion and the inner side surface of the cylinder at at least three locations in the circumferential direction of the cylinder on the inner side of the cylinder.
  • the optical sensor component according to the present embodiment includes a plurality of ribs connected to the lens portion and the inner surface of the cylinder, it can be combined with a small-sized optical sensor.
  • the optical sensor component according to the present invention has a simple structure that can be integrally molded.
  • the plurality of ribs have cutout portions, and the distance between the lens portion and the optical sensor is determined by the position of the cutout portion of each rib. Is formed.
  • the distance between the lens unit and the optical sensor is determined by combining the optical sensor component according to the present embodiment with the optical sensor.
  • the total area of the surfaces where the notch portions contact the upper surface of the package of the optical sensor is A, and the area of the upper surface of the optical sensor is B.
  • a / B exceeds the upper limit of formula (1), the area of the portion shielded by the ribs increases, and the optical characteristics deteriorate.
  • the value of A / B is below the lower limit of the formula (1), the strength of the notch portion is insufficient, and the accuracy of determining the distance between the lens portion and the optical sensor is lowered, so that the optical characteristics are deteriorated.
  • An optical sensor component is an optical sensor component used in combination with an optical sensor of a rectangular parallelepiped package, and a plurality of optical sensor components are provided for at least two of the four side surfaces of the package.
  • the ribs are arranged.
  • optical sensor component according to the present embodiment When the optical sensor component according to the present embodiment is used in combination with an optical sensor of a rectangular parallelepiped package, rotation with respect to the optical sensor is prevented.
  • An optical sensor component is an optical sensor component that is used in combination with an optical sensor of a rectangular parallelepiped package, and includes at least two of the four side surfaces of the package and the light of the package. Ribs are arranged so as to occupy a region of 15% or more with respect to the side between the incident surface.
  • optical sensor component according to the present embodiment When the optical sensor component according to the present embodiment is used in combination with an optical sensor of a rectangular parallelepiped package, rotation with respect to the optical sensor is prevented.
  • the lens unit is divided into a plurality of lens segments, and the plurality of ribs are connected to the lens unit along a plurality of boundaries of the plurality of lens segments. Is formed.
  • the plurality of ribs are formed along the plurality of boundaries of the plurality of lens segments of the lens portion, the influence of light shielding by the ribs is limited.
  • the optical sensor is a pyroelectric infrared sensor.
  • the optical sensor component according to the present embodiment can be used in combination with a pyroelectric infrared sensor having a small size.
  • the mold for optical sensor components according to the second aspect of the present invention is a cylindrical optical sensor component used in combination with an optical sensor, and the optical sensor is combined with one end surface of the cylinder.
  • the other end of the tube is composed of a lens unit that collects light from the outside onto the photosensor.
  • At the inner side of the tube at least three locations in the circumferential direction of the tube, the lens unit and the inner surface of the tube
  • An optical sensor comprising a plurality of continuous ribs, wherein the lens portion is divided into a plurality of lens segments, and the plurality of ribs are formed to be continuous with the lens portions along a plurality of boundaries of the plurality of lens segments. It is the metal mold
  • the mold for forming the inner lens surface of the cylinder, the inner side surface, and the end surface of the open portion where the optical sensor is combined in the mold for optical sensor components according to the present aspect is a first corresponding to the lens portion of the optical sensor. And a second mold part corresponding to the lens peripheral part of the photosensor.
  • the first mold portion is composed of a plurality of portions corresponding to the plurality of lens segments, and a shape corresponding to the rib is provided at a peripheral portion of the plurality of portions.
  • the second mold part has a through hole, and is configured to be used by incorporating the first mold part into the through hole.
  • the mold for optical sensor components according to this aspect is divided into a first mold part corresponding to the lens part of the optical sensor and a second mold part corresponding to the lens peripheral part of the optical sensor. Therefore, it is possible to efficiently manufacture optical sensor components including various lenses. Further, the first mold portion corresponding to the lens portion of the optical sensor is composed of a plurality of portions corresponding to the plurality of segments, and the shape corresponding to the rib is provided at the peripheral portion of the plurality of portions. Can be easily processed, and a highly accurate mold can be processed.
  • FIG. 1 is a cross-sectional view including a central axis of an optical sensor component 100 according to an embodiment of the present invention.
  • FIG. 2 is a plan view of the optical sensor component 100.
  • the outline of the plan view of the optical sensor component 100 is circular.
  • An axis passing through the center of the circle and extending perpendicularly to the horizontal plane (plane in the plan view) is the central axis.
  • the Z axis is defined in the direction of the central axis, and the X axis and the Y axis are defined in the horizontal plane.
  • the optical sensor component 100 includes an end portion 101 and a side surface 105 made of a lens. Furthermore, the optical sensor component 100 includes a rib 103. In the present embodiment, three ribs 103 are provided and spaced apart at equal intervals in the circumferential direction. The three ribs 103 are connected to the inner lens surface 102 and the inner surface of the side surface 105 of the end portion 101 made of a lens, respectively. Each rib 103 is provided with a notch 1031, and the notch 1031 is configured to engage with the package 201 of the optical sensor. In this specification, the package of an optical sensor is simply referred to as an optical sensor. In the present embodiment, the horizontal cross section (XY cross section) of the optical sensor component 100 and the optical sensor 201 is circular.
  • At least three ribs exist.
  • the optical sensor component 100 is formed from a plastic such as polyethylene or polypropylene.
  • the notch portion 1031 of the rib 103 and the sensor 201 are configured to engage with each other, as shown in FIG. 2, the projected area of the inner lens surface 102 onto the horizontal plane (XY plane).
  • the optical sensor component 100 and the sensor 201 can be combined without using an adapter component or the like.
  • the distance between the lens and the sensor 201 can be determined by adjusting the position of the notch 1031 in the central axis direction.
  • FIG. 3 is a perspective view of the optical sensor component 100.
  • FIG. 4 is a plan view of an optical sensor component 100A according to another embodiment of the present invention.
  • the inner lens surface of the optical sensor component 100A is divided into six lens segments 102A1, 102A2, 102A3, 102A4, 102A5, and 102A6 in the circumferential direction.
  • the reason why the lens is divided into lens segments is that detection is performed by different sensors by changing the focusing position for each lens segment.
  • the optical sensor is a pyroelectric infrared sensor that detects infrared rays generated by an object
  • the position of the human body and its change are detected by detecting with different sensors for each lens segment in this way. Can do.
  • the pyroelectric infrared sensor is a sensor that uses the pyroelectric effect in which electric charges are generated due to temperature changes caused by infrared rays. Pyroelectric infrared sensors combined with optical sensor components are used in, for example, electric lights on toilet walls, toilets, and air conditioners.
  • the optical sensor component 100A includes six ribs 103A1, 103A2, 103A3, 103A4, 103A5, and 103A6.
  • the six ribs 103A1, 103A2, 103A3, 103A4, 103A5, and 103A6 are provided along the border of the six lens segments 102A1, 102A2, 102A3, 102A4, 102A5, and 102A6. Since the rib is provided at the peripheral edge along the boundary of the lens segment, the influence of light shielding by the rib is limited.
  • FIG. 5 is a perspective view of the optical sensor component 100A.
  • FIG. 6 is a plan view of an optical sensor component 100B according to another embodiment of the present invention.
  • the optical sensor component 100B includes six ribs 103B1, 103B2, 103B3, 103B4, 103B5, and 103B6.
  • the horizontal section of the optical sensor component 100B is circular.
  • the optical sensor 201B has a rectangular parallelepiped shape, and its horizontal cross section is a rectangle. The notches of the six ribs 103B1, 103B2, 103B3, 103B4, 103B5, and 103B6 are formed so that the horizontal plane engages the upper surface of the rectangular sensor 201B.
  • FIG. 7 is a perspective view of the optical sensor component 100B.
  • FIG. 8 is a plan view of an optical sensor component 100C according to another embodiment of the present invention.
  • the optical sensor component 100C includes six ribs 103C1, 103C2, 103C3, 103C4, 103C5, and 103C6.
  • the horizontal section of the optical sensor component 100B is rectangular.
  • the optical sensor 201C has a rectangular parallelepiped shape, and its horizontal cross section is a rectangle. The notches of the six ribs 103C1, 103C2, 103C3, 103C4, 103C5, and 103C6 are formed so that the horizontal plane engages the upper surface of the rectangular sensor 201C.
  • optical sensor component and the horizontal cross section of the optical sensor may have any shape.
  • FIG. 9 is a perspective view of the optical sensor component 100C.
  • FIG. 10 is a diagram showing an embodiment of a mold for a part for optical sensors provided with three ribs.
  • the optical sensor component is manufactured by injection molding using the mold.
  • the mold according to this embodiment is formed by three lens segment molds 501A1, 501A2 and 501A3, a peripheral edge mold 601 and an outer mold 701.
  • the rib is formed along the lens segment at the peripheral portion thereof. Therefore, in this embodiment, the rib metal is provided at the peripheral portion of the lens segment molds 501A1, 501A2, and 501A3.
  • a mold shape is formed.
  • the rib mold shape is formed on the peripheral edge of the lens segment mold in this way, the mold can be processed more easily than when the rib mold shape is formed as a concave portion of the mold.
  • the three lens segment molds 501A1, 501A2 and 501A3 and the peripheral edge mold 601 are aligned so as to align the ribs, and the outer mold 701 is installed outside thereof to perform injection molding.
  • FIG. 11 is a view showing an embodiment of a mold for optical sensor parts having six ribs.
  • the optical sensor component is manufactured by injection molding using the mold.
  • the mold according to this embodiment is formed of six lens segment molds 501B1, 501B2, 501B3, 501B4, 501B5 and 501B6, a peripheral part mold 601 and an outer mold 701.
  • the ribs are formed along the lens segment at the peripheral edge thereof. Therefore, in this embodiment, the peripheral edges of the lens segment molds 501B1, 501B2, 501B3, 501B4, 501B5 and 501B6 are used.
  • a rib mold shape is formed on each portion.
  • the rib mold shape is formed on the peripheral edge of the lens segment mold in this way, the mold can be processed more easily than when the rib mold shape is formed as a concave portion of the mold.
  • the six lens segment molds 501B1, 501B2, 501B3, 501B4, 501B5 and 501B6 and the peripheral part mold 601 are aligned so as to align the ribs, and the outer mold 701 is installed outside thereof. Injection molding is performed.
  • the optical sensor parts including the upper surface, the side surfaces, and the ribs made of the lens can be integrally formed by injection molding.
  • peripheral mold 601 and the outer mold 701 can be used in common for different lens segment molds. By separating the lens segment mold and the peripheral edge mold, it is possible to efficiently manufacture optical sensor components including various lenses according to the application.
  • FIG. 12 is a diagram showing the configuration of an embodiment of the optical sensor component.
  • 12 (a), 12 (b), 12 (c), and 12 (d) are a plan view, a side view, a bottom view, and a cross-sectional view taken along line AA in the plan view, respectively.
  • the optical sensor component 100D includes four ribs 103D formed along the boundaries of the four lens segments 101D.
  • the four lens segments 101D have individual shapes.
  • the four ribs 103D are formed to engage with the optical sensor.
  • the total area A of the surfaces where the notches contact the upper surface of the optical sensor is 0.95 square millimeters
  • the area B of the upper surface of the optical sensor is 22.1 square millimeters
  • the ratio A / B is 0. .043.
  • the length of one side between the light incident surface and the side surface of the package of the optical sensor is 4.7 mm
  • the width of the rib arranged on the side is 0.95 mm.
  • the width ratio is 20.2%.
  • FIG. 13 is a perspective view of the optical sensor component 100D.
  • the optical sensor component of the present invention can be widely used for other optical sensors such as a photoelectric sensor.
  • Photoelectric sensors are widely used for applications such as detection of the presence or absence of an object.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Lens Barrels (AREA)
PCT/JP2011/077772 2010-12-15 2011-12-01 光センサ用部品 WO2012081409A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN201180059368.XA CN103261856B (zh) 2010-12-15 2011-12-01 光传感器用部件
GB1311521.7A GB2500346B (en) 2010-12-15 2011-12-01 Component for optical sensor
JP2012548724A JP5499257B2 (ja) 2010-12-15 2011-12-01 光センサ用部品及び光センサ

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2010-279945 2010-12-15
JP2010279945 2010-12-15

Publications (1)

Publication Number Publication Date
WO2012081409A1 true WO2012081409A1 (ja) 2012-06-21

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Application Number Title Priority Date Filing Date
PCT/JP2011/077772 WO2012081409A1 (ja) 2010-12-15 2011-12-01 光センサ用部品

Country Status (4)

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JP (1) JP5499257B2 (zh)
CN (1) CN103261856B (zh)
GB (1) GB2500346B (zh)
WO (1) WO2012081409A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018031765A (ja) * 2016-08-23 2018-03-01 興和株式会社 赤外線センサ用集光装置とその製造方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03129052U (zh) * 1990-04-11 1991-12-25
JPH0894437A (ja) * 1994-09-26 1996-04-12 Hokuriku Electric Ind Co Ltd 焦電型赤外線検出器
JP2002131446A (ja) * 2000-10-20 2002-05-09 Seiko Precision Inc センサモジュール
JP2008268052A (ja) * 2007-04-23 2008-11-06 Matsushita Electric Works Ltd 赤外線センサ
JP2009139190A (ja) * 2007-12-05 2009-06-25 Nippon Ceramic Co Ltd 樹脂成型光学レンズ

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JP2785619B2 (ja) * 1992-11-16 1998-08-13 松下電器産業株式会社 自動車用空調装置の日射センサ
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CN2457579Y (zh) * 2000-09-06 2001-10-31 中国科学院光电技术研究所 红外面阵焦平面探测器
JP2003215313A (ja) * 2002-01-28 2003-07-30 Matsushita Electric Works Ltd 広角レンズ
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JP2006148710A (ja) * 2004-11-22 2006-06-08 Sharp Corp 撮像モジュール及び撮像モジュールの製造方法
JP3129052U (ja) * 2006-11-17 2007-02-01 日本セラミック株式会社 赤外線検出器
KR100905769B1 (ko) * 2007-08-08 2009-07-02 주식회사 원진일렉트로닉스 차량용 광센서

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03129052U (zh) * 1990-04-11 1991-12-25
JPH0894437A (ja) * 1994-09-26 1996-04-12 Hokuriku Electric Ind Co Ltd 焦電型赤外線検出器
JP2002131446A (ja) * 2000-10-20 2002-05-09 Seiko Precision Inc センサモジュール
JP2008268052A (ja) * 2007-04-23 2008-11-06 Matsushita Electric Works Ltd 赤外線センサ
JP2009139190A (ja) * 2007-12-05 2009-06-25 Nippon Ceramic Co Ltd 樹脂成型光学レンズ

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018031765A (ja) * 2016-08-23 2018-03-01 興和株式会社 赤外線センサ用集光装置とその製造方法

Also Published As

Publication number Publication date
JPWO2012081409A1 (ja) 2014-05-22
GB2500346B (en) 2016-07-13
GB201311521D0 (en) 2013-08-14
GB2500346A (en) 2013-09-18
CN103261856A (zh) 2013-08-21
JP5499257B2 (ja) 2014-05-21
CN103261856B (zh) 2015-09-23

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