JPH0332848B2 - - Google Patents
Info
- Publication number
- JPH0332848B2 JPH0332848B2 JP57114380A JP11438082A JPH0332848B2 JP H0332848 B2 JPH0332848 B2 JP H0332848B2 JP 57114380 A JP57114380 A JP 57114380A JP 11438082 A JP11438082 A JP 11438082A JP H0332848 B2 JPH0332848 B2 JP H0332848B2
- Authority
- JP
- Japan
- Prior art keywords
- lens
- photoelectric
- lens support
- main body
- edge
- 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
Landscapes
- Lens Barrels (AREA)
- Switches Operated By Changes In Physical Conditions (AREA)
Description
【発明の詳細な説明】
本発明は光電スイツチに関するもので、その目
的とするところは、レンズと光電素子の光軸が精
度よく一致しかつ全体構成が簡単なものとするこ
とにある。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a photoelectric switch, and an object of the present invention is to enable the optical axes of a lens and a photoelectric element to coincide with each other with high accuracy, and to simplify the overall configuration.
従来の光電スイツチにおいては、レンズとレン
ズ支持体との組立は、光電スイツチ本体に個別に
組込むことにより行なわれていたから、レンズ支
持体後方の口縁に装着される光電素子とレンズと
の相対位置を精度よく保つことが困難なものであ
つた。他の従来のものはレンズとレンズ支持体を
本体外で予め一体化組立を行うものも提案されて
いたが、組立にはねじを用いるものであり部品点
数が増え、構成も複雑で、ひいては高価なもので
あつた。 In conventional photoelectric switches, the lens and lens support were assembled individually into the photoelectric switch body. It was difficult to maintain accuracy. Other conventional models have been proposed in which the lens and lens support are integrated in advance outside the main body, but screws are used for assembly, which increases the number of parts, complicates the structure, and makes it expensive. It was something.
本発明はかかる従来の事情に着目して、その改
善のためなされたものである。以下本発明の実施
例について、図面を参照して説明する。 The present invention has been made in order to improve the conventional situation. Embodiments of the present invention will be described below with reference to the drawings.
レンズ１は熱可塑性の合成樹脂材料の塑造成型
により形成してあり、レンズ部１ａ、裏面１ｂ、
突起１ｃ、裏面口縁１ｄからなつている。 The lens 1 is formed by plastic molding of a thermoplastic synthetic resin material, and includes a lens portion 1a, a back surface 1b,
It consists of a protrusion 1c and a back lip 1d.
レンズ支持体２は、合成樹脂或は金属ダイカス
ト製で、テーパ筒部２ａ、前面口縁２ｂ、裏面２
ｃ、後方口縁２ｄ、孔２ｅからなつている。 The lens support 2 is made of synthetic resin or metal die-casting, and has a tapered cylindrical portion 2a, a front edge 2b, and a back surface 2.
c, a rear lip 2d, and a hole 2e.
３は光電素子で、本体が投光器の場合は発光ダ
イオードの如き発光素子であり、受光器の場合は
フオトトランジスタのような受光素子である。 3 is a photoelectric element, which is a light emitting element such as a light emitting diode when the main body is a projector, and a light receiving element such as a phototransistor when the main body is a light receiver.
４はプリント板で、受光回路や発光回路等の光
電スイツチ回路が実装してある。 4 is a printed board on which photoelectric switch circuits such as a light receiving circuit and a light emitting circuit are mounted.
５は光電スイツチ本体で、金属ダイカスト製或
は合成樹脂製で、箱形で開口部口縁５ａが形成し
てある。 Reference numeral 5 denotes a photoelectric switch body, which is made of die-cast metal or synthetic resin, and has a box shape with an opening edge 5a.
６はレンズパツキンで、７は本体パツキンで、
共にゴムの如き弾性材料で形成してある。 6 is the lens gasket, 7 is the main body gasket,
Both are made of an elastic material such as rubber.
しかして、レンズ体１の裏面口縁１ｄとレンズ
支持体前面口縁２ｄ間にレンズパツキン６を介挿
し、突起１ｃを孔２ｅに貫挿して裏面２ｃに突出
させ突出部分を加熱変形して点線で示す膨大部を
形成することによりレンズ体１とレンズ支持体２
とを結合する。そしてプリント板４に接続した光
電素子３をレンズ体２の後方口縁２ｄに圧入等に
より装着して光電ブロツクを形成してあり、この
光電ブロツク状態で、レンズ体１と光電素子３の
光軸は、レンズ支持体２によつて相互位置が決ま
り、また光電素子３と、プリント板４とが光学系
であるレンズ体１、レンズ支持体２に一体的にブ
ロツク化されておるので、このブロツク状態で性
能テスト、調整作業が行なえる。 Then, the lens packing 6 is inserted between the back edge 1d of the lens body 1 and the front edge 2d of the lens support, and the protrusion 1c is inserted into the hole 2e to protrude from the back surface 2c. The lens body 1 and the lens support body 2 are formed by forming the enlarged portion shown in
Combine with. The photoelectric element 3 connected to the printed board 4 is attached to the rear edge 2d of the lens body 2 by press fitting or the like to form a photoelectric block.In this photoelectric block state, the optical axis of the lens body 1 and the photoelectric element 3 is Their mutual positions are determined by the lens support 2, and since the photoelectric element 3 and the printed board 4 are integrally formed into a block with the lens body 1 and the lens support 2, which are optical systems, this block Performance tests and adjustments can be performed in the current state.
次に本体パツキングを介して光電ブロツクのレ
ンズ支持体２の後面２ｃと本体開口部口縁５ａと
を圧入や超音波による熱着等によりシール状態
で、光電ブロツクと本体５とを取着するもので、
ねじは全く不要である。 Next, the photoelectric block and the main body 5 are attached to each other by press-fitting the rear surface 2c of the lens support 2 of the photoelectric block and the rim 5a of the main body opening through the main body packing, or by heat bonding using ultrasonic waves, etc., in a sealed state. in,
No screws are required.
以上説明したように、本発明光電スイツチによ
れば、レンズ体１の裏面縁部に一体に突起１ｃを
突設すると共にレンズ本体１の裏面口縁１ｄとレ
ンズ支持体２の前面口縁２ｂとの間にレンズパツ
キンを介して前記突起１ｃをレンズ支持体裏面２
ｃに突出して熱着或は突起１ｃとレンズ支持体２
前面を当接状態で超音波熱着すると共に、レンズ
支持体後方口縁２ｄに装着した光電素子３、前記
光電素子３を接続した光電スイツチ回路を実装し
てなるプリント板４とから光電ブロツクを構成
し、前記光電ブロツクのレンズ支持体裏面２ｃと
光電スイツチ本体開口部口縁５ａとの間に本体パ
ツキン７を介して光電ブロツクを本体５に取着し
てなる構成としており、レンズと光電素子とがレ
ンズ支持体により相互位置が決まつて光軸が精度
よく保たれ性能が安定し、また光電ブロツクのみ
で調整や点検が本体組込前に行なえて能率的であ
り、ねじなどの締結部材を要さず全体構成が簡単
なものとなし得るものである。 As explained above, according to the photoelectric switch of the present invention, the protrusion 1c is integrally provided on the back edge of the lens body 1, and the back edge 1d of the lens body 1 and the front edge 2b of the lens support 2 are connected to each other. In between, the projection 1c is attached to the back surface 2 of the lens support through the lens packing.
Heat bonding or protrusion 1c protruding from c and lens support 2
A photoelectric block is attached by ultrasonic heat bonding with the front surfaces in contact with each other, and a photoelectric element 3 mounted on the rear edge 2d of the lens support, and a printed board 4 on which a photoelectric switch circuit to which the photoelectric element 3 is connected are mounted. The photoelectric block is attached to the main body 5 via the main body packing 7 between the back surface 2c of the lens support of the photoelectric block and the opening edge 5a of the photoelectric switch main body, and the lens and the photoelectric element are connected to each other. The relative positions of the lens and lens support are determined, and the optical axis is maintained with high precision, resulting in stable performance.Also, adjustments and inspections can be made efficiently using just the photoelectric block before assembly into the main body, and fastening materials such as screws can be used. The overall configuration can be made simple without requiring any additional steps.
更に従来のようなレンズ周縁を覆つて保持する
レンズホルダーカバーを要せず、本願はレンズ体
の裏面縁部に一体に突設した突起でレンズ体を保
持するものだから、レンズ周縁まで有効面積が増
加して小型化が図れるとともに部品点数も削減も
合わせて得られる。 Furthermore, there is no need for a conventional lens holder cover that covers and holds the lens periphery, and the present invention holds the lens body with a protrusion that is integrally provided on the rear edge of the lens body, so the effective area extends to the lens periphery. The number of parts can be increased, downsizing can be achieved, and the number of parts can also be reduced.
図は本発明の一実施例を示す縦断面図である。
１：レンズ体、１ｃ：突起、１ｄ：裏面口縁、
２：レンズ支持体、２ｂ：前面口縁、２ｃ：裏
面、２ｄ：後方口縁、２ｅ：孔、３：光電素子、
４：プリント板、５：本体、５ａ：口縁。
The figure is a longitudinal sectional view showing an embodiment of the present invention. 1: Lens body, 1c: Protrusion, 1d: Back rim,
2: lens support, 2b: front edge, 2c: back surface, 2d: rear edge, 2e: hole, 3: photoelectric element,
4: printed board, 5: main body, 5a: rim.
Claims (1)
レンズ体の裏面口縁とレンズ支持体の前面口縁と
の間にレンズパツキンを介して前記突起をレンズ
支持体裏面に突出して熱着或は突起とレンズ支持
体前面を当設状態で超音波熱着すると共にレンズ
支持体後方口縁に装着した光電素子、前記光電素
子を接続した光電スイツチ回路を実装してなるプ
リント板とから光電ブロツクを構成し、前記光電
ブロツクのレンズ支持体裏面と光電スイツチ本体
開口部口縁との間に本体パツキンを介して光電ブ
ロツクを本体に取着してなる光電スイツチ。1. A protrusion is provided on the back edge of the lens body, and the protrusion is protruded onto the back surface of the lens support via a lens seal between the back edge of the lens body and the front edge of the lens support, and is thermally bonded. A photoelectric block is formed by ultrasonic heat bonding with the protrusion and the front surface of the lens support in contact with each other, a photoelectric element attached to the rear edge of the lens support, and a printed board on which a photoelectric switch circuit connected to the photoelectric element is mounted. A photoelectric switch comprising: a photoelectric block attached to the main body via a main body packing between the back surface of the lens support of the photoelectric block and the opening edge of the photoelectric switch main body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11438082A JPS595525A (en) | 1982-06-30 | 1982-06-30 | Photoelectric switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11438082A JPS595525A (en) | 1982-06-30 | 1982-06-30 | Photoelectric switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS595525A JPS595525A (en) | 1984-01-12 |
| JPH0332848B2 true JPH0332848B2 (en) | 1991-05-15 |
Family
ID=14636227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11438082A Granted JPS595525A (en) | 1982-06-30 | 1982-06-30 | Photoelectric switch |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS595525A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4821469B2 (en) * | 2006-07-06 | 2011-11-24 | 東芝ライテック株式会社 | Optical unit and display device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5749889Y2 (en) * | 1979-05-21 | 1982-11-01 |
-
1982
- 1982-06-30 JP JP11438082A patent/JPS595525A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS595525A (en) | 1984-01-12 |
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