JPH0473604A - Illuminating device - Google Patents

Illuminating device

Info

Publication number
JPH0473604A
JPH0473604A JP18556090A JP18556090A JPH0473604A JP H0473604 A JPH0473604 A JP H0473604A JP 18556090 A JP18556090 A JP 18556090A JP 18556090 A JP18556090 A JP 18556090A JP H0473604 A JPH0473604 A JP H0473604A
Authority
JP
Japan
Prior art keywords
light
key button
emitting element
transmission body
light guide
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.)
Pending
Application number
JP18556090A
Other languages
Japanese (ja)
Inventor
Katsura Komata
桂 小俣
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP18556090A priority Critical patent/JPH0473604A/en
Publication of JPH0473604A publication Critical patent/JPH0473604A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2219/00Legends
    • H01H2219/002Legends replaceable; adaptable
    • H01H2219/014LED
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2219/00Legends
    • H01H2219/036Light emitting elements
    • H01H2219/04Attachments; Connections
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2219/00Legends
    • H01H2219/054Optical elements
    • H01H2219/062Light conductor
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2229/00Manufacturing
    • H01H2229/044Injection moulding
    • H01H2229/048Insertion moulding

Landscapes

  • Light Guides In General And Applications Therefor (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)

Abstract

PURPOSE:To obtain an illuminating device which is thin and gives excellent visibility by directly enveloping a light emitting element in a light transmission body and forming a part from the neighborhood of the light emitting element to the neighborhood of a key button as an integrated substance. CONSTITUTION:The LED element 5 is directly fitted on a printed substrate 1 and the light transmission body 11 is shaped by directly molding the LED element 5 by resin. In an illuminated type membrane switch constituted in such a way, light emitted from the element 5 is transmitted through the light transmission body 11 and transmitted to the end surface of the key button 4 from the left side surface of the light transmission body 11 in a figure. Then, it is guided to the upper surface of the key button 4. Thus, since the element 5 is directly enveloped in the light transmission body 11 and the part from the neighborhood of the element 5 to the neighborhood of an irradiation display part is formed as the integrated substance, there is not a joint on the transmitting path of the light. As the result, the light of the light emitting element 5 is efficiently guided to the illuminated display part.

Description

【発明の詳細な説明】 [産業上の利用分野コ この発明は9例えば電子機器などの操作卓などに用いら
れる照光装置に関する。
DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a lighting device used, for example, in a console for electronic equipment.

[従来の技術] 第3図は1例えば日本航空電子工業■のカタログNO,
PSW−0001号(’89.10月)に記載されてい
る従来の照光装置としての照光式メンブレンスイッチの
構造を示す断面図であり図において(1)は設置部とし
てのプリント基板。
[Prior art] Figure 3 shows 1, for example, the catalog No. of Japan Aviation Electronics Industry ■.
It is a sectional view showing the structure of an illuminated membrane switch as a conventional illumination device described in PSW-0001 (October '89), and in the figure (1) is a printed circuit board as an installation part.

(2)はプリント基板(1)上に配設された。2枚の電
極シートと絶縁スペーサとから構成されスイッチ部(3
)を有するシート状スイッチ体、(4)はシート状スイ
ッチ体(2)のスイッチ部(3)上方に設けられた照光
表示部としての透光性樹脂のキーボタン、(5)はプリ
ント基板(1)上に配設された発光素子であるLED素
子、(6)はLED素子(5)を固着している補助基板
、(7)はLED素子(5)を覆っているモールド樹脂
、(8)はLED素子(5)の上部に設けられた導光体
、(9)はキーボタン(4)を保持し、導光体(8)の
上部に設けられた遮光性を有する遮光手段としてのフレ
ーム、 (10)はスイッチ部(3)とキーボタン(4
)の間に設けられた反転ばねである。
(2) was arranged on the printed circuit board (1). The switch part (3) is composed of two electrode sheets and an insulating spacer.
), (4) is a key button made of a transparent resin as an illuminated display section provided above the switch part (3) of the sheet-like switch body (2), and (5) is a printed circuit board ( 1) An LED element which is a light emitting element disposed on top, (6) an auxiliary substrate to which the LED element (5) is fixed, (7) a molded resin covering the LED element (5), (8) ) is a light guide provided on the top of the LED element (5), and (9) is a light shielding means that holds the key button (4) and has a light blocking property provided on the top of the light guide (8). The frame (10) is the switch part (3) and the key button (4).
) is a reversing spring provided between the

なお、LED素子(5)、補助基板(6)、モールド樹
脂(7)が一体でチップLEDと呼んでいる。
Note that the LED element (5), auxiliary substrate (6), and mold resin (7) are collectively referred to as a chip LED.

次に動作について説明する。Next, the operation will be explained.

LED素子(5)が発した光は、モールド樹脂(7)と
導光体(8)とを通って、キーボタン(4)の側面およ
び底面から入り、キーボタン(4)の上面を照光する。
The light emitted by the LED element (5) passes through the molded resin (7) and the light guide (8), enters the side and bottom of the key button (4), and illuminates the top of the key button (4). .

キーボタン(4)の上面を照光することにより。By illuminating the top surface of the key button (4).

キーボタン(4)の位置が明確となり、視認性の良い、
すなわち操作性の良いスイッチとなる。
The position of the key button (4) is clear and has good visibility.
In other words, it becomes a switch with good operability.

次に、スイッチとしての動作は、キーボタン(4)を押
し下げることによりキーボタン(4)の下端が反転ばね
(10)の中央を押し下げ2反転ばね(10)が反転し
、シート状スイッチ体(2)の上部電極シートが押し下
げられることによりスイッチ部(3)の上下接点が接触
し、ON(投入)状態となる。
Next, the operation as a switch is as follows: when the key button (4) is pressed down, the lower end of the key button (4) pushes down the center of the reversing spring (10) and the reversing spring (10) is reversed, and the sheet-like switch body ( When the upper electrode sheet 2) is pushed down, the upper and lower contacts of the switch section (3) come into contact, resulting in an ON (closed) state.

そして、キーボタン(4)を押し下げている力を几 除くと2反転ばね(10)がえの状態に復元し、上部電
極シートを押し下げる力がなくなるので、上部電極シー
トの弾性力によりスイッチ部(3)の上下接点が開離し
、0FF(切断〕状態となる。
Then, when the force pushing down the key button (4) is removed, the 2-inversion spring (10) is restored to its original state, and the force pushing down the upper electrode sheet disappears, so the elastic force of the upper electrode sheet causes the switch part ( The upper and lower contacts of 3) open and become 0FF (disconnected) state.

なお7反転ばね(10)はキーボタン(4)の操作感触
を向上させるために設けられているもので1反転はね(
10)を取り除き、キーボタン(4)の下端でての機能
は損なわれない。
Note that the 7 reversal springs (10) are provided to improve the operating feel of the key buttons (4).
10) is removed, the function at the lower end of the key button (4) is not impaired.

また、照光式メンブレンスイッチにはスイッチ部(3)
の動作状態に対応してLED素子(5)を点灯あるいは
消灯させるものもあるが、ここで説明した照光式メンブ
レンスイッチは、スイッチ部(3)の動作状態に関係な
く LED素子(5)を点灯させているものである。
In addition, the illuminated membrane switch has a switch section (3).
There are some types that turn on or off the LED element (5) depending on the operating state of the switch part (3), but the illuminated membrane switch described here turns on the LED element (5) regardless of the operating state of the switch part (3). This is what is being done.

[発明が解決しようとする課題] 従来の照光式メンブレンスイッチは以上のように構成さ
れているので、キーボタン(4)の視認性を高めるため
には、LED素子(5)の発光を効率よくキーボタン(
4)に導く必要があり、このためには、LED素子(5
)を覆っているモールド樹脂(7)と隣接する導光体(
8)との空間を小さくしたり、導光体(8)のモールド
樹脂(7)との隣接面の面精度を良くするなど光の伝達
効率を高める必要があり高精度の加工・組立て技術が必
要である。
[Problem to be solved by the invention] Since the conventional illuminated membrane switch is configured as described above, in order to improve the visibility of the key button (4), it is necessary to efficiently emit light from the LED element (5). key button (
4), and for this purpose, an LED element (5) is required.
) covering the mold resin (7) and the adjacent light guide (
It is necessary to increase the light transmission efficiency by reducing the space between the light guide (8) and the molded resin (7), and improving the surface precision of the surface of the light guide (8) adjacent to the molded resin (7). is necessary.

また、チップLEDと導光体(8)とが別々の構成部材
であるため、照光式メンブレンスイッチの薄形化が難し
いという問題点があった。
Furthermore, since the chip LED and the light guide (8) are separate components, there is a problem in that it is difficult to make the illuminated membrane switch thinner.

この発明は上記のような問題点を解消するためになされ
たもので、薄形で、かつ視認性のよい照光装置を得るこ
とを目的とする。
This invention was made to solve the above problems, and aims to provide a thin illumination device with good visibility.

[課題を解決するための手段] この発明に係る照光装置は7発光素子とこの発光素子が
発生する光を光入力部より入力して照光する照光表示部
と上記発光素子をモールドにより直接把持し、上記発光
素子を把持した部分から上記照光表示部の上記光入力部
に近接した部分までをモールドによって一体物として成
形され、上記光を上記光入力部まで導く導光体と、この
導光体の表面のうち上記光を発散すべきでない部分を覆
耽 うように上記導光体の表面に近艇された遮光手段とを備
えたものである。
[Means for Solving the Problems] A lighting device according to the present invention includes seven light emitting elements, an illuminated display section that illuminates by inputting light generated by the light emitting elements from an optical input section, and the light emitting elements that are directly held by a mold. , a light guide which is molded as an integral body from a portion that grips the light emitting element to a portion of the illuminated display section that is close to the light input section, and guides the light to the light input section; and this light guide. A light shielding means is provided close to the surface of the light guide so as to cover a portion of the surface where the light should not be emitted.

[作用] この発明における照光装置は、導光体が1発光素子を直
接包み込み、かつ発光素子の近傍から照光表示部の近傍
までの部分が一体物であるため。
[Function] In the lighting device of the present invention, the light guide directly surrounds one light-emitting element, and the portion from the vicinity of the light-emitting element to the vicinity of the illuminated display section is a single piece.

光の伝達経路に継目がなく1発光素子の光が効率よく照
光表示部に導かれる。
There is no seam in the light transmission path, and the light from one light emitting element is efficiently guided to the illuminated display section.

[実施例] 第1図は本発明による照光装置としての照光式メンブレ
ンスイッチの第1の実施例の構造を示す断面図であり1
図において、(1)〜(4)、  (9)。
[Embodiment] FIG. 1 is a sectional view showing the structure of a first embodiment of an illuminated membrane switch as an illumination device according to the present invention.
In the figure, (1) to (4), (9).

(10)は第3図に示した従来の照光式メンブレンスイ
ッチと同一のものであるため、説明を適宜省略する。
Since (10) is the same as the conventional illuminated membrane switch shown in FIG. 3, the explanation will be omitted as appropriate.

(5)はLED素子であるが第3図に示した従来例のも
のと異なりプリント基板(1)に直付けされている。 
(11)はLED素子(5)を直接、樹脂モールドして
成形した導光体である。
(5) is an LED element, but unlike the conventional example shown in FIG. 3, it is directly attached to the printed circuit board (1).
(11) is a light guide formed by directly molding the LED element (5) with resin.

上記のように構成された照光式メンブレンスイッチにお
いては、LED素子(5)が発した光は導光体(11)
の中を伝わり、導光体(11)の図中左側面からキーボ
タン(4)の端面へ伝わり、キーボタン(4)の上面ま
で導かれる第2図は本発明による照光式メンブレンスイ
ッチの第2の実施例を示す断面図であり、(1)〜(5
)、  (9)〜(11)は第1囚に示したものと同一
であるため説明を省略する。
In the illuminated membrane switch configured as described above, the light emitted by the LED element (5) is transmitted to the light guide (11).
Figure 2 shows a diagram of the illuminated membrane switch according to the present invention. 2 is a sectional view showing Example 2, and (1) to (5)
), (9) to (11) are the same as those shown for the first prisoner, so their explanation will be omitted.

(12)は導光体(11)と筐体(9)との間で、側面
がキーボタン(4)に隣接するように設けられた集光性
樹脂である。
(12) is a light-condensing resin provided between the light guide (11) and the housing (9) so that its side surface is adjacent to the key button (4).

集光性樹脂(12)は透光性樹脂の中に蛍光体を含有さ
せたものであり、上面および下面から入射した光を内部
で蛍光に変換し、その蛍光を側面から効率よく放射する
もので、入射光に対し、70%〜80%の放射光が得ら
れるものである。
The light-harvesting resin (12) is a translucent resin containing a phosphor, which internally converts light incident from the top and bottom surfaces into fluorescence, and efficiently emits the fluorescence from the sides. In this case, 70% to 80% of the emitted light can be obtained with respect to the incident light.

上記のように構成された照光式メンブレンスイッチにお
いては、LED素子(5)から発した光が一部は導光体
(11)から直接キーボタン(4)へ照射されるが、大
部分の光は導光体(11)の上面から集光性樹脂(12
)に入射し、集光性樹脂(12)の内部で蛍光に変換さ
れた光がキーボタン(4)に隣接した側面より放射され
るので、LED素子(5)の発光を効率よくキーボタン
(4)へ導くことができる。
In the illuminated membrane switch configured as described above, part of the light emitted from the LED element (5) is irradiated directly from the light guide (11) to the key button (4), but most of the light is emitted from the light guide (11). is from the top surface of the light guide (11) to the light-condensing resin (12).
), the light is converted into fluorescent light inside the light-concentrating resin (12) and is emitted from the side surface adjacent to the key button (4). 4).

なお、上記第2の実施例では集光性樹脂(12)の上部
に遮光性のフレーム(9)を設けた場合について説明し
たが、集光性樹脂(12)の上面が遮光できれば、シー
ルや塗装であってもよい。
In addition, in the above-mentioned second embodiment, a case was explained in which a light-shielding frame (9) was provided on the top of the light-concentrating resin (12), but if the upper surface of the light-concentrating resin (12) could be shielded from light, it would be possible to use a seal or the like. It may be painted.

以上に説明したとおり、上記各実施例による照光式メン
ブレンスイッチにおいては、LED素子(5)を直接、
導光体(11)が包み込み、また、この導光体(11)
の端面がキーボタン(4)の側面と近門するような構造
となっている。
As explained above, in the illuminated membrane switch according to each of the above embodiments, the LED element (5) is directly connected to the
The light guide (11) wraps around the light guide (11).
The structure is such that the end face of the key button (4) is close to the side face of the key button (4).

このためLED素子(5)が発した光はキーボタン(4
)までただ1つの導光体(11)の中だけを通って伝わ
るため、第3図に示した従来例のもののように複数の部
材間の継目を通過する際に生じる伝達効率の低下がなく
、キーボタン(4)への効率のよい光の伝達が行なえ、
キーボタン(4)が明るく照らされる。視認性のよい照
光式メンブレンスイッチが得られる。
Therefore, the light emitted by the LED element (5) is
), there is no drop in transmission efficiency that occurs when passing through the joints between multiple members, unlike in the conventional example shown in Figure 3. , efficient transmission of light to the key button (4),
The key button (4) is brightly illuminated. An illuminated membrane switch with good visibility can be obtained.

[発明の効果] この発明の照光装置は以上に説明したとおり。[Effect of the invention] The lighting device of this invention is as described above.

導光体を2発光素子を直接包み込みかつ発光素子近傍の
部分からキーボタン近傍の部分までを一体物として形成
したことを特徴としている。
It is characterized in that the light guide directly wraps around the two light emitting elements and is formed as one piece from the part near the light emitting elements to the part near the key button.

これにより2発光素子が発した光は照光すべき照光表示
部まで単一の導光体内のみを通って到達するため光の伝
達効率がよく、照光表示部が明るく照らされる。視認性
のよい、照光装置が得られるという効果がある。
As a result, the light emitted by the two light-emitting elements reaches the illuminated display section to be illuminated through only the single light guide, so that the light transmission efficiency is high and the illuminated display section is brightly illuminated. This has the effect of providing a lighting device with good visibility.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明による照光装置としての照光式メンブレ
ンスイッチの第1の実施例の構造を示す断面図、第2図
は本発明による照光式メンブレン第1図 キーボタン LED幸子 フレーム 導光体 す断面図である。 図において、(4)はキーボタン、(5)はLED素子
、(9)はフレーム、 (11)は導光体である。 なお、各図中、同一符号は同一または相当部分を示す。 第2図
FIG. 1 is a sectional view showing the structure of a first embodiment of an illuminated membrane switch as an illumination device according to the present invention. FIG. FIG. In the figure, (4) is a key button, (5) is an LED element, (9) is a frame, and (11) is a light guide. In each figure, the same reference numerals indicate the same or corresponding parts. Figure 2

Claims (1)

【特許請求の範囲】[Claims] 発光素子、この発光素子が発生する光を光入力部より入
力して照光する照光表示部、上記発光素子をモールドに
より直接把持し上記発光素子を把持した部分から上記照
光表示部の上記光入力部に近接した部分までをモールド
によつて一体物として成形され、上記光を上記光入力部
まで導く導光体、この導光体の表面のうち上記光を発散
すべきでない部分を覆うように上記導光体の表面に近設
された遮光手段を備えたことを特徴とする照光装置。
a light-emitting element, a light-emitting display section that illuminates the light-emitting element by inputting light generated by the light-emitting element from a light input section; the light-emitting element is directly gripped by a mold, and the light input section of the light-emitting display section is connected from a portion where the light-emitting element is gripped; A light guide that guides the light to the light input section by molding up to a part close to the light guide, and a light guide that guides the light to the light input section, and the light guide that covers the part of the surface of the light guide that is not supposed to emit the light. A lighting device characterized by comprising a light shielding means provided close to the surface of a light guide.
JP18556090A 1990-07-13 1990-07-13 Illuminating device Pending JPH0473604A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18556090A JPH0473604A (en) 1990-07-13 1990-07-13 Illuminating device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18556090A JPH0473604A (en) 1990-07-13 1990-07-13 Illuminating device

Publications (1)

Publication Number Publication Date
JPH0473604A true JPH0473604A (en) 1992-03-09

Family

ID=16172948

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18556090A Pending JPH0473604A (en) 1990-07-13 1990-07-13 Illuminating device

Country Status (1)

Country Link
JP (1) JPH0473604A (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5990664A (en) * 1982-08-03 1984-05-25 テキサス・インスツルメンツ・インコ−ポレイテツド Cleaning amd removing apparatus and method
JPS5922407B2 (en) * 1979-02-05 1984-05-26 三洋電機株式会社 Receiver with automatic station search function
JPS59169854A (en) * 1983-03-17 1984-09-25 東洋鋼鈑株式会社 Resin coated metallic plate having high surface hardness

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5922407B2 (en) * 1979-02-05 1984-05-26 三洋電機株式会社 Receiver with automatic station search function
JPS5990664A (en) * 1982-08-03 1984-05-25 テキサス・インスツルメンツ・インコ−ポレイテツド Cleaning amd removing apparatus and method
JPS59169854A (en) * 1983-03-17 1984-09-25 東洋鋼鈑株式会社 Resin coated metallic plate having high surface hardness

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