JPH082899Y2 - Photoelectric detector - Google Patents
Photoelectric detectorInfo
- Publication number
- JPH082899Y2 JPH082899Y2 JP1987190829U JP19082987U JPH082899Y2 JP H082899 Y2 JPH082899 Y2 JP H082899Y2 JP 1987190829 U JP1987190829 U JP 1987190829U JP 19082987 U JP19082987 U JP 19082987U JP H082899 Y2 JPH082899 Y2 JP H082899Y2
- Authority
- JP
- Japan
- Prior art keywords
- lens
- substrate
- optical system
- system element
- case
- 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.)
- Expired - Lifetime
Links
- 230000003287 optical effect Effects 0.000 claims description 37
- 239000000758 substrate Substances 0.000 claims description 25
- 238000001514 detection method Methods 0.000 claims description 17
- 210000000078 claw Anatomy 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
Landscapes
- Switches Operated By Changes In Physical Conditions (AREA)
- Electronic Switches (AREA)
Description
【考案の詳細な説明】 （イ） 産業上の利用分野 この考案は、光電スイッチ等の光電検出装置の小形化
及び構造の簡略化に関する。DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to downsizing and simplification of a photoelectric detection device such as a photoelectric switch.
（ロ） 従来の技術 従来の光電検出装置は、第３図に示すように、ケース
22、レンズ23、基板25、投光素子及び／又は受光素子
（以下光学系素子という）26等を備えてなるものが知ら
れている。(B) Conventional Technology As shown in FIG. 3, the conventional photoelectric detection device has a case.
A device including a lens 22, a lens 23, a substrate 25, a light projecting element and / or a light receiving element (hereinafter referred to as an optical system element) 26, etc. is known.
レンズ23は、レンズホルダ24に固着されて、ケース開
口部22aに支持される。このレンズホルダ24の後端部24a
に接するように、基板25がケース22内に固定される。こ
の基板25のレンズ23に臨む面25aには、光学系素子26が
装着されている。前記レンズホルダ24により、レンズ23
と光学系素子26との間の距離は所定の値とされる。The lens 23 is fixed to the lens holder 24 and is supported by the case opening 22a. The rear end 24a of this lens holder 24
The substrate 25 is fixed in the case 22 so as to contact with. An optical system element 26 is mounted on the surface 25a of the substrate 25 facing the lens 23. With the lens holder 24, the lens 23
The distance between the optical system element 26 and the optical system element 26 is a predetermined value.
一方、27、28は印刷回路基板であり、29は動作表示
灯、30は外部機器との接続のためのケーブルである。On the other hand, 27 and 28 are printed circuit boards, 29 is an operation indicator light, and 30 is a cable for connecting to an external device.
（ハ） 考案が解決しようとする問題点 上記従来の光電検出装置21は、レンズ23と光学系素子
26との間に所定距離を取るため、レンズ23と基板25との
間の距離が大きくなり、小形化が困難である問題点があ
った。(C) Problems to be solved by the invention The conventional photoelectric detection device 21 described above includes a lens 23 and an optical system element.
Since a predetermined distance is provided between the lens 23 and the substrate 26, the distance between the lens 23 and the substrate 25 becomes large, which makes it difficult to reduce the size.
また、レンズ23と光学系素子26との間に所定距離を取
る手段として、レンズホルダ24が必要となり、構造の簡
略化が困難である問題点があった。Further, the lens holder 24 is required as a means for keeping a predetermined distance between the lens 23 and the optical system element 26, and there is a problem that it is difficult to simplify the structure.
この考案は、上記に鑑みなされたもので、小形化及び
構造の簡略化が可能となる光電検出装置の提供を目的と
している。The present invention has been made in view of the above, and an object thereof is to provide a photoelectric detection device which can be downsized and whose structure can be simplified.
（ニ） 問題点を解決するための手段及び作用 この考案の光電検出装置の構成を、実施例に対応する
第１図を用いて説明すると、レンズ３を有するケース２
と、このケース２内に固定される基板５と、この基板５
上に装着され、所定の距離をおいてレンズ３に臨む光学
系素子６とを備えてなるものにおいて、基板５の一方面
側にケース２のレンズ３が位置するように基板５を配置
し、この基板５のレンズ３に相対する部分に窓部5aを開
設し、この基板５の他方面側に、光学面が窓部5aを介し
てレンズ３に対向するように光学系素子６を装着したも
のである。(D) Means and Actions for Solving Problems The configuration of the photoelectric detection device of the present invention will be described with reference to FIG. 1 corresponding to the embodiment. Case 2 having lens 3
And the substrate 5 fixed in the case 2, and the substrate 5
In a device which is mounted on the optical system element 6 and faces the lens 3 at a predetermined distance, the substrate 5 is arranged so that the lens 3 of the case 2 is located on one surface side of the substrate 5, A window 5a is opened in a portion of the substrate 5 facing the lens 3, and an optical system element 6 is attached to the other surface of the substrate 5 so that the optical surface faces the lens 3 through the window 5a. It is a thing.
従って、この考案の光電検出装置は、レンズ３と光学
系素子６との距離を確保したまま、レンズ３と基板５と
の間の距離を小さくすることができ、その小形化を図る
ことができる。また、光学系素子の光学面が基板の窓部
を介してレンズに対向するから、光路上に光学系素子が
存在せず、素子自身の影による死角が検出領域に生じ
ず、物体を確実に検出できる。Therefore, in the photoelectric detection device of the present invention, the distance between the lens 3 and the substrate 5 can be reduced while the distance between the lens 3 and the optical system element 6 is secured, and the size can be reduced. . Further, since the optical surface of the optical system element faces the lens through the window portion of the substrate, the optical system element does not exist on the optical path, and a blind spot due to the shadow of the element itself does not occur in the detection area, so that the object is securely Can be detected.
（ホ） 実施例 この考案の一実施例を第１図及び第２図に基づいて以
下に説明する。(E) Embodiment An embodiment of the present invention will be described below with reference to FIGS. 1 and 2.
第１図は、この実施例に係る光電検出装置１の縦断面
図であり、第２図は同光電検出装置１の横断面図であ
る。２は、筐状のケースであり、その上面には、凹部2a
が設けられている（第１図参照）。この凹部2a中央に
は、さらに窓孔2bが開設されている。凹部2aには、レン
ズ３が装着され、このレンズ３は、前記窓孔2bよりケー
ス２内部に臨む。FIG. 1 is a vertical cross-sectional view of the photoelectric detection device 1 according to this embodiment, and FIG. 2 is a horizontal cross-sectional view of the photoelectric detection device 1. Reference numeral 2 denotes a case having a concave portion 2a on its upper surface.
(See FIG. 1). A window hole 2b is further formed in the center of the recess 2a. A lens 3 is mounted in the recess 2a, and the lens 3 faces the inside of the case 2 through the window 2b.
ケース２内には、シールド10が収納されている。この
シールド10は、後述の回路基板５の前半部を覆う。シー
ルド10の上面には、窓部10aが開設されており、この窓
部10aは、前記窓孔2bの下方に位置している（第１図参
照）。また、シールド10の底部10bは、ケース２内を後
方（第１図及び第２図紙面右方向）に延伸している。A shield 10 is housed in the case 2. The shield 10 covers the front half of the circuit board 5 described later. A window 10a is opened on the upper surface of the shield 10, and the window 10a is located below the window hole 2b (see FIG. 1). Further, the bottom portion 10b of the shield 10 extends rearward (in the right direction on the paper surface of FIGS. 1 and 2) in the case 2.
ケース２には、その後端の開口部2dより、回路基板５
とベース７が一体に挿入される。回路基板５の前部下
面、すなわち、レンズ３と臨む面と反対面5bに、光学系
素子６が密着して取り付けられている。光学系素子６の
投受光面は、回路基板５に開設される窓孔5aを通して、
さらにシールド窓部10aを通して、レンズ３に臨む。こ
の時、光学系素子６とレンズ３との間には、所定の距離
が確保される。In the case 2, the circuit board 5 is inserted through the opening 2d at the rear end.
And the base 7 are integrally inserted. The optical system element 6 is closely attached to the lower surface of the front portion of the circuit board 5, that is, the surface 5b opposite to the surface facing the lens 3. The light projecting / receiving surface of the optical system element 6 passes through a window hole 5a opened in the circuit board 5,
Further, it faces the lens 3 through the shield window 10a. At this time, a predetermined distance is secured between the optical system element 6 and the lens 3.
回路基板５上には、図示しない電子部品が装着され
て、光電検出回路が構成される。なお、この光電検出回
路は周知のものであるから、説明は省略する。なお、９
は動作表示灯であり、ケース挿通孔2cを挿通して外部に
露出する。Electronic components (not shown) are mounted on the circuit board 5 to form a photoelectric detection circuit. Since this photoelectric detection circuit is well known, its explanation is omitted. 9
Is an operation indicator light, which is exposed through the case insertion hole 2c.
さらに回路基板５には、突部5c、5dが設けられてお
り、これら突部5c、5dが、それぞれケース２内の凹部2
e、2fに挿入されて、回路基板５がケース２内部に支持
される。この時、光学系素子６底面がシールド底部10b
を挟むようにケース２内面に密着する構成とすれば、光
学系素子６が、ケース２内面と回路基板５に挟持され
て、振動に対して強いものとすることかできる。Further, the circuit board 5 is provided with projections 5c and 5d, and these projections 5c and 5d are respectively formed in the recesses 2 in the case 2.
The circuit board 5 is supported inside the case 2 by being inserted into e and 2f. At this time, the bottom of the optical system element 6 is the shield bottom 10b.
With the configuration in which the optical system element 6 is closely attached to the inner surface of the case 2 so as to sandwich it, the optical system element 6 can be sandwiched between the inner surface of the case 2 and the circuit board 5 to be strong against vibration.
一方、ベース７には、このベース７を前後（第１図及
び第２図紙面左右方向）に挿通する端子８が設けられて
いる。これら端子８の前端部8aは、回路基板５にはんだ
付等の手段で接続されている。このベース７には、係合
爪7aが設けられており、この係合爪7aがケース開口部2d
の係合孔2daと係合して、ベース７がケース開口部2dに
固定される。なお、11a、11b、11cは、それぞれパッキ
ンである。On the other hand, the base 7 is provided with terminals 8 through which the base 7 is inserted in the front-rear direction (the left-right direction of the paper surface of FIGS. 1 and 2). The front ends 8a of these terminals 8 are connected to the circuit board 5 by means such as soldering. The base 7 is provided with an engagement claw 7a, and the engagement claw 7a is formed in the case opening 2d.
The base 7 is fixed to the case opening 2d by engaging with the engaging hole 2da. Note that 11a, 11b, and 11c are packings, respectively.
この実施例光電検出装置１では、光学系素子６より光
を投じる場合には、この光は、窓孔5a、窓部10a、窓孔2
bを順次通過してレンズ３に至り、レンズ３より外部に
照射される。一方、外部よりの光を光学系素子６が受け
る場合には、この光は、レンズ３により集光されて、窓
孔2b、窓部10a、窓孔5aを順次通過して、光学系素子６
に至る。In the photoelectric detection device 1 of this embodiment, when light is emitted from the optical system element 6, this light is transmitted through the window hole 5a, the window portion 10a, and the window hole 2a.
The light passes through b to reach the lens 3 and is irradiated from the lens 3 to the outside. On the other hand, when the optical system element 6 receives light from the outside, this light is condensed by the lens 3 and sequentially passes through the window hole 2b, the window portion 10a, and the window hole 5a to obtain the optical system element 6
Leading to.
なお、上記実施例では、回路基板窓孔5aの形状を、単
純な正方形としているが、スリットを構成させることも
でき適宜設計変更可能である。In the above embodiment, the circuit board window hole 5a has a simple square shape, but a slit can be formed and the design can be changed as appropriate.
（ヘ） 考案の効果 以上説明したように、この考案の光電検出装置は、基
板の一方面側にケースのレンズが位置するように基板を
配置し、この基板のレンズに相対する部分に窓部を開設
し、この基板の他方面側に、光学面が窓部を介してレン
ズに対向するように光学系素子を装着した構成としたか
ら、レンズと光学系素子との間に所定の距離を確保した
まま、光電検出装置の小形化が図れる利点を有してい
る。また、光学系素子の光学面が基板の窓部を介してレ
ンズと対向する構成であるから、光学系素子の光学面か
らレンズに至る光路に光学系素子が存在せず、素子自身
の影により検出領域に死角ができるような不具合は生じ
ず、確実に物体を検出できる利点を有している。(F) Effect of the Invention As described above, in the photoelectric detection device of the invention, the substrate is arranged so that the case lens is positioned on one surface side of the substrate, and the window portion is provided in the portion of the substrate facing the lens. Since the optical system element is mounted on the other surface side of this substrate so that the optical surface faces the lens through the window, a predetermined distance is provided between the lens and the optical system element. There is an advantage that the photoelectric detection device can be miniaturized while being secured. Further, since the optical surface of the optical system element faces the lens through the window of the substrate, there is no optical system element in the optical path from the optical surface of the optical system element to the lens, and the shadow of the element itself causes This has the advantage that an object such as a blind spot does not occur in the detection area and an object can be detected reliably.
また、実施例に示すように、光学系素子を基板とケー
ス内面で挟持する構成とすれば、光電検出装置を振動に
対して強いものとすることができる利点を有している。Further, as shown in the embodiment, if the optical system element is sandwiched between the substrate and the inner surface of the case, there is an advantage that the photoelectric detection device can be made strong against vibration.
第１図は、この考案の一実施例に係る光電検出装置の縦
断面図、第２図は、同光電検出装置の横断面図、第３図
は、従来の光電検出装置の一部を破断して示す側面図で
ある。 1:光電検出装置、2:ケース、2b:窓孔、3:レンズ、5:回
路基板、5a:窓孔、5b:回路基板下面、6:光学系素子。FIG. 1 is a vertical sectional view of a photoelectric detecting device according to an embodiment of the present invention, FIG. 2 is a transverse sectional view of the photoelectric detecting device, and FIG. 3 is a partially broken view of a conventional photoelectric detecting device. FIG. 1: Photoelectric detector, 2: Case, 2b: Window hole, 3: Lens, 5: Circuit board, 5a: Window hole, 5b: Circuit board lower surface, 6: Optical system element.
Claims (1)
固定される基板と、この基板上に装着され、所定の距離
をおいて前記レンズに臨む光学系素子とを備えてなる光
電検出装置において、 前記基板の一方面側に前記ケースのレンズが位置するよ
うに基板を配置し、この基板の前記レンズに相対する部
分に窓部を開設し、この基板の他方面側に、光学面が前
記窓部を介して前記レンズに対向するように光学系素子
を装着したことを特徴とする光電検出装置。1. A photoelectric detector comprising a case having a lens, a substrate fixed in the case, and an optical system element mounted on the substrate and facing the lens at a predetermined distance. , The substrate is arranged so that the lens of the case is located on one surface side of the substrate, a window is opened in a portion of the substrate facing the lens, and the optical surface is formed on the other surface side of the substrate. A photoelectric detection device, wherein an optical system element is mounted so as to face the lens through a window.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987190829U JPH082899Y2 (en) | 1987-12-16 | 1987-12-16 | Photoelectric detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987190829U JPH082899Y2 (en) | 1987-12-16 | 1987-12-16 | Photoelectric detector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0195038U JPH0195038U (en) | 1989-06-22 |
| JPH082899Y2 true JPH082899Y2 (en) | 1996-01-29 |
Family
ID=31481771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987190829U Expired - Lifetime JPH082899Y2 (en) | 1987-12-16 | 1987-12-16 | Photoelectric detector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH082899Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6479536B2 (en) * | 2015-03-31 | 2019-03-06 | パナソニック デバイスＳｕｎｘ株式会社 | Photoelectric sensor |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51121187A (en) * | 1975-04-16 | 1976-10-22 | Matsushita Electric Works Ltd | Light projector and receiver for photo switch |
| JPS5612746Y2 (en) * | 1977-11-07 | 1981-03-24 | ||
| JPS60156469U (en) * | 1984-03-28 | 1985-10-18 | 新光電子株式会社 | Reflective photoelectric detection device |
| JPS63308831A (en) * | 1987-01-14 | 1988-12-16 | Matsushita Electric Works Ltd | Photoelectric switch and manufacture thereof |
-
1987
- 1987-12-16 JP JP1987190829U patent/JPH082899Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0195038U (en) | 1989-06-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4767179A (en) | Fiber optic connector assembly | |
| JPH05328012A (en) | Image sensor | |
| JP2009237697A (en) | Photoelectric smoke sensor | |
| JPH082899Y2 (en) | Photoelectric detector | |
| JP5198190B2 (en) | Photo-interrupter | |
| CN216596202U (en) | Photoelectric mouse | |
| JPH082796Y2 (en) | Water drainage structure of sensor | |
| JPH09231484A (en) | Photoelectric smoke sensor | |
| JP4232161B2 (en) | Fire detector | |
| JPH0416514Y2 (en) | ||
| JP3381962B2 (en) | Object detection device by light emission and light reception | |
| JP2549558Y2 (en) | Pachinko ball detection switch | |
| JPH11185179A (en) | Heat and smoke combined type fire sensor and manufacture thereof | |
| JP3699891B2 (en) | Fire detector | |
| JP4089660B2 (en) | Security detection device | |
| JPH0637305Y2 (en) | Photo sensor | |
| JP2519699Y2 (en) | Electrical equipment | |
| JPH057674Y2 (en) | ||
| JPS6130369Y2 (en) | ||
| JPS6349822Y2 (en) | ||
| JP4081757B2 (en) | Attachment mounting structure | |
| JPS59187884U (en) | alarm device | |
| JPH0330954Y2 (en) | ||
| JPS5910606Y2 (en) | photoelectric sensor | |
| KR960000250Y1 (en) | Fire Detector Base |