JP3140367B2 - Button lighting structure - Google Patents

Button lighting structure

Info

Publication number
JP3140367B2
JP3140367B2 JP08105471A JP10547196A JP3140367B2 JP 3140367 B2 JP3140367 B2 JP 3140367B2 JP 08105471 A JP08105471 A JP 08105471A JP 10547196 A JP10547196 A JP 10547196A JP 3140367 B2 JP3140367 B2 JP 3140367B2
Authority
JP
Japan
Prior art keywords
light
character display
button
light source
push button
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 - Fee Related
Application number
JP08105471A
Other languages
Japanese (ja)
Other versions
JPH09293423A (en
Inventor
博章 上田
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.)
Denso Ten Ltd
Original Assignee
Denso Ten Ltd
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 Denso Ten Ltd filed Critical Denso Ten Ltd
Priority to JP08105471A priority Critical patent/JP3140367B2/en
Publication of JPH09293423A publication Critical patent/JPH09293423A/en
Application granted granted Critical
Publication of JP3140367B2 publication Critical patent/JP3140367B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Switch Cases, Indication, And Locking (AREA)
  • Push-Button Switches (AREA)

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、電子機器等の前面
に構成された釦の裏面方向から照明するように設けられ
た光源により照明する釦の照明構造に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an illumination structure of a button illuminated by a light source provided to illuminate a button arranged on a front surface of an electronic device or the like from a back side.

【0002】[0002]

【従来の技術】従来の釦の照明構造を図3を用いて説明
する。図3は従来の釦の照明構造を示す図で、(a)は
平面図、(b)はC−C断面図である。70は電子機器
等の前面の操作部等に組込まれる押釦で、押釦70の上
面71には文字表示部75及び76があり機能を表す文
字や記号が表示されている。また、裏面にはスイッチを
押すための押部(図示省略)が形成されている。押釦7
0は表示内容(文字や記号)を見易くするため、又は意
匠の一部として押釦70の裏面より照明し表示内容を浮
き立たせる構造となっている。しかし、設計上の都合等
により照明の光源81の位置が押釦70の文字表示部か
ら偏った位置、例えば文字表示部75の真下に光源81
が設けられた場合には文字表示部75の文字が文字表示
部76の文字より明るくなり、2箇所の文字間に輝度差
が生じるので、文字表示部75の下の肉厚72を厚くし
て光の透過を阻止して輝度を下げ、光源81から離れた
文字表示部76の文字の輝度に合わせるようにしてい
る。
2. Description of the Related Art A conventional button illumination structure will be described with reference to FIG. 3A and 3B show a conventional button illumination structure, wherein FIG. 3A is a plan view and FIG. 3B is a cross-sectional view taken along the line CC. Reference numeral 70 denotes a push button incorporated in an operation unit or the like on the front of an electronic device or the like. On the upper surface 71 of the push button 70, there are character display portions 75 and 76, and characters and symbols representing functions are displayed. Further, a push portion (not shown) for pushing a switch is formed on the back surface. Push button 7
Reference numeral 0 denotes a structure for illuminating the display contents (characters and symbols) from the back surface of the push button 70 so as to make the display contents stand out or as a part of the design to make the display contents stand out. However, the position of the light source 81 for illumination is deviated from the character display portion of the push button 70 due to design reasons or the like, for example, the light source 81 is located immediately below the character display portion 75.
Is provided, the characters on the character display portion 75 are brighter than the characters on the character display portion 76, and a luminance difference occurs between the two characters. Therefore, the thickness 72 below the character display portion 75 is increased. The luminance is reduced by blocking the transmission of light so as to match the luminance of the character in the character display section 76 distant from the light source 81.

【0003】尚、押釦70は光透過性(又は、乳白色等
の光半透過性)の樹脂(例えば、アクリル系樹脂)を成
形し、上面71に文字や記号が印刷されている。押釦7
0は裏面より照明光により照明されると押釦70全体が
明るくなるので、印刷された文字や記号が浮き上がって
見える。80は前面部に組込まれる操作用の基板で、押
釦70の照明用の光源(LED)81、押釦スイッチ
(図示省略)その他電子部品等が実装されている。基板
80は押釦70の下部に構成されている。尚、基板80
は機器の薄型化または小型化に伴いフイルム状のフレキ
シブル基板等が用いられる。
The push button 70 is formed of a light transmissive (or translucent light such as milky white) resin (for example, an acrylic resin), and characters and symbols are printed on an upper surface 71 thereof. Push button 7
When the number 0 is illuminated by the illumination light from the back surface, the entire push button 70 becomes bright, so that the printed characters and symbols appear to rise. Reference numeral 80 denotes an operation board incorporated in the front surface, on which a light source (LED) 81 for illumination of the push button 70, a push button switch (not shown), and other electronic components are mounted. The substrate 80 is formed below the push button 70. The substrate 80
As the device becomes thinner or smaller, a film-like flexible substrate or the like is used.

【0004】90は機器の前面で、押釦70が係合する
孔91をはじめ操作用のつまみ及び表示部等を取付ける
取付部等が形成されている。
[0004] Reference numeral 90 denotes a front surface of the device, which is formed with a hole 91 with which the push button 70 is engaged, an operation knob, a mounting portion for mounting a display portion, and the like.

【0005】[0005]

【発明が解決しようとする課題】しかし、上述の釦の照
明構造では、釦の照明むらを少なくするために輝度の高
い方の文字表示部75の裏の肉厚を厚くして、輝度の低
い方の文字表示部76の輝度に近づけることになるの
で、特に光量の小さいチップタイプのLED等を用いる
場合には文字表示部全体の輝度が低くなるという問題が
残る。
However, in the above-described button illumination structure, the thickness of the back of the character display portion 75 having the higher luminance is increased to reduce the unevenness of the illumination of the button, and the luminance of the lower portion is reduced. In this case, the brightness of the character display unit 76 is close to the brightness of the other character display unit 76. Therefore, when a chip type LED or the like having a small light amount is used, there is a problem that the brightness of the entire character display unit is reduced.

【0006】そこで、本発明は上述の問題を解決するも
ので、光源からの光を効率よく導光し、照明むらの少な
い釦の照明構造を提供することを目的とする。
Accordingly, an object of the present invention is to solve the above-mentioned problems, and to provide a button illumination structure that efficiently guides light from a light source and has less illumination unevenness.

【0007】[0007]

【課題を解決するための手段】本発明は、上述の目的を
達成するもので、複数の文字表示部を有する光透過性の
釦と、該釦の裏面方向から光を照明するように設けられ
た光源とから成る釦の照明構造において、前記文字表示
部はそれぞれ前記光源からの距離が異なっており、前記
釦の裏面には該光源からの光を透過光と反射光とに分散
させ、該文字表示部のそれぞれに均等に光が照射される
ような傾斜部を形成していることを特徴とするものであ
る。
SUMMARY OF THE INVENTION The present invention achieves the above-mentioned object and comprises a light-transmissive button having a plurality of character display portions, and a light-transmitting button provided to illuminate light from the back side of the button. In a lighting structure of a button including a light source, the character display portions are different in distance from the light source, and the light from the light source is dispersed into transmitted light and reflected light on the back surface of the button. The character display unit is characterized in that an inclined portion is formed such that light is evenly applied to each of the character display portions.

【0008】また、前記傾斜部の勾配を、前記文字表示
部のそれぞれに均等に光が照射されるような勾配として
いることを特徴とするものである。また、前記傾斜部の
表面状態を、前記文字表示部のそれぞれに均等に光が照
射されるような表面状態としていることを特徴とするも
のである。
[0008] Further, the present invention is characterized in that the inclination of the inclined portion is set so that light is uniformly applied to each of the character display portions. Further, the surface condition of the inclined portion is such that light is uniformly applied to each of the character display portions.

【0009】[0009]

【実施例】本発明の第1実施例を図1を用いて説明す
る。図1は本発明の第1実施例の釦の照明構造を示す図
で、(a)は平面図、(b)はA−A断面図である。1
0は電子機器等の前面の操作部等に組込まれる押釦で、
押釦10の上面11には文字表示部14及び15があり
機能を表す文字や記号が表示されている。また、裏面に
はスイッチを押すための押部(図示省略)が形成されて
いる。押釦10は表示内容(文字や記号)を見易くする
ため、又は意匠の一部として押釦10の裏面より照明し
表示内容を浮き立たせる構造となっている。しかし、設
計上の都合等により照明の光源21の位置が押釦10の
文字表示部から偏った位置、例えば文字表示部14の真
下に設けられた場合には、文字表示部14の文字が文字
表示部15の文字より明るくなり、2箇所の文字間に輝
度差が生じる。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described with reference to FIG. FIGS. 1A and 1B are views showing a lighting structure of a button according to a first embodiment of the present invention, wherein FIG. 1A is a plan view, and FIG. 1
0 is a push button incorporated in an operation unit or the like on the front of an electronic device or the like,
Character display sections 14 and 15 are provided on the upper surface 11 of the push button 10 to display characters and symbols representing functions. Further, a push portion (not shown) for pushing a switch is formed on the back surface. The push button 10 has a structure for illuminating the display content (characters and symbols) from the back surface of the push button 10 so as to make the display content (characters and symbols) easy to see or as part of the design. However, when the position of the light source 21 of the illumination is deviated from the character display portion of the push button 10 due to design reasons or the like, for example, provided immediately below the character display portion 14, the characters of the character display portion 14 are displayed as characters. It becomes brighter than the characters in the part 15 and a luminance difference occurs between the two characters.

【0010】そこで、文字表示部14の下部に傾斜部1
2を設け光を傾斜部12にて反射させて分散させ、文字
表示部14への光の透過量を調整すると共に、傾斜部1
2の表面で光源21からの光を反射させた光と光源21
から直接届く光とで、光源21から離れた文字表示部1
5の照射光量を増やし文字の輝度を上げ、文字表示部1
4の文字と文字表示部15の文字との輝度差を無くすよ
うになっている。
Therefore, the inclined portion 1 is provided below the character display portion 14.
2, the light is reflected by the inclined portion 12 to be dispersed, and the amount of light transmitted to the character display portion 14 is adjusted.
Light reflected from the light source 21 on the surface of the light source 2 and the light source 21
Character display unit 1 distant from light source 21
5, the illumination light amount is increased to increase the brightness of the character, and the character display unit 1
The luminance difference between the character No. 4 and the character on the character display unit 15 is eliminated.

【0011】尚、文字表示部14及び文字表示部15へ
の光の照射光量を調整するには傾斜部12の傾斜角度θ
の調整により行われる。傾斜部12の上の始点pを起点
にして傾斜角度θを大きくすると文字表示部14への光
の透過量が増え、傾斜部12の表面での反射光が減り文
字表示部15の光の照射光量が減少する。また、傾斜部
12の表面の粗さによっても光の透過量及び反射量が変
わる。従って、傾斜角度θ及び傾斜部12の表面の粗さ
を調整することにより文字表示部14の文字と文字表示
部15の文字との輝度差を調整することができる。
In order to adjust the amount of light emitted to the character display unit 14 and the character display unit 15, the inclination angle θ of the inclination unit 12 is adjusted.
This is done by adjusting. When the inclination angle θ is increased from the start point p on the inclined portion 12 as a starting point, the amount of light transmitted to the character display portion 14 increases, the reflected light on the surface of the inclined portion 12 decreases, and the light irradiation of the character display portion 15 is performed. The amount of light decreases. Further, the amount of transmitted light and the amount of reflected light also change depending on the roughness of the surface of the inclined portion 12. Therefore, by adjusting the inclination angle θ and the roughness of the surface of the inclined portion 12, the luminance difference between the characters on the character display portion 14 and the characters on the character display portion 15 can be adjusted.

【0012】尚、押釦10は光透過性(又は、乳白色等
の光半透過性)の樹脂(例えば、アクリル系樹脂)を成
形し、上面71に文字や記号が印刷されている。押釦1
0は裏面より照明光により照明されると押釦10全体が
明るくなるので、印刷された文字や記号が浮き上がって
見える。押釦10は、その他に光透過性の樹脂を成形し
表面を光が透過しないように例えば黒色塗装を行い、押
釦上面の塗装部をレーザーカット加工等により黒色塗装
部を除去し文字や記号を形成したり、又は光透過性の樹
脂の表面を光が透過しな樹脂で文字や記号部を除く部分
を囲うように成形する2色成形加工等により成形され
る。
The push button 10 is formed of a light-transmissive (or translucent light such as milky white) resin (for example, an acrylic resin), and characters and symbols are printed on the upper surface 71. Push button 1
When the number 0 is illuminated by the illumination light from the back surface, the entire push button 10 becomes bright, so that the printed characters and symbols appear to rise. In addition, the push button 10 is formed of a light-transmitting resin and is coated with, for example, black so that light does not pass through the surface, and the painted portion on the upper surface of the push button is removed by laser cutting or the like to form letters and symbols. Or a two-color molding process or the like in which the surface of the light-transmitting resin is molded with a resin that does not transmit light so as to surround the portion excluding the character and symbol portions.

【0013】20は前面部に組込まれる操作用の基板
で、押釦10の照明用の光源(LED)21、押釦スイ
ッチ及びその他の電子部品(図示省略)等が実装されて
いる。基板20は押釦10の下部に構成されている。
尚、基板20は機器の薄型化または小型化に伴いフイル
ム状のフレキシブル基板等が用いられる。30は機器の
前面で、押釦10が係合する孔31をはじめ操作用のつ
まみ及び表示部等を取付ける取付部等が形成されてい
る。
Reference numeral 20 denotes an operation board incorporated in the front surface, on which a light source (LED) 21 for illuminating the push button 10, a push button switch, and other electronic components (not shown) are mounted. The substrate 20 is formed below the push button 10.
As the substrate 20, a film-shaped flexible substrate or the like is used as the device becomes thinner or smaller. Reference numeral 30 denotes a front surface of the device, in which a hole 31 with which the push button 10 is engaged, an operation knob, a mounting portion for mounting a display portion, and the like are formed.

【0014】以上説明したように、本実施例によれば、
照明用の光源が文字表示部から離れた位置にあっても傾
斜部12の勾配θを調整することにより、光を損失する
ことなく効率よく文字表示部を照明することができる。
従って、光量の小さいチップタイプのLED等の光源を
用いる場合でも光の損失を少なくし、広範囲の表示部を
均一に照射することができる。
As described above, according to this embodiment,
Even if the illumination light source is located at a position distant from the character display unit, the character display unit can be efficiently illuminated without loss of light by adjusting the gradient θ of the inclined unit 12.
Therefore, even when a light source such as a chip-type LED having a small light amount is used, the loss of light can be reduced, and the display portion over a wide area can be uniformly irradiated.

【0015】次に、本発明の第2実施例を図2を用いて
説明する。図2は本発明の第2実施例の釦の照明構造を
示す図で、(a)は平面図、(b)はB−B断面図であ
る。尚、第2実施例は第1実施例の一部を変更したもの
で、その他については第1実施例と略同じであるので、
同じ構成については同じ符号を付し説明を省略する。
Next, a second embodiment of the present invention will be described with reference to FIG. FIGS. 2A and 2B are diagrams showing a lighting structure of a button according to a second embodiment of the present invention, wherein FIG. 2A is a plan view and FIG. In the second embodiment, a part of the first embodiment is changed, and the others are substantially the same as the first embodiment.
The same components are denoted by the same reference numerals and description thereof is omitted.

【0016】押釦10は設計上の都合等により照明の光
源(LED)21の位置が、押釦10の文字表示部から
偏った位置、例えば文字表示部16から最も離れた位置
に設けられた場合には、照明光が文字表示部16へ達し
にくく照明効率が悪くなり文字表示部16の輝度が落ち
ることになる。そこで、光源21の上部に傾斜部13を
設け、傾斜部13の勾配θを、光源21からの光の入射
角αが全反射角度以上となるように設定したり、あるい
は傾斜部13の表面を鏡面に設定することにより、光源
21からの光を傾斜部13にて全反射させて、照明を必
要としない光源21真上への光の透過量を抑えると共
に、傾斜部13の表面で光源21からの光を反射させた
光と、光源21から文字表示部16へ直接届く光とで、
光源21から離れた文字表示部16の照明射光量を増や
し文字の輝度を上げることができる。
When the position of the light source (LED) 21 for illumination is deviated from the character display portion of the push button 10, for example, at the position farthest from the character display portion 16, the push button 10 is provided due to design reasons or the like. In this case, the illumination light hardly reaches the character display unit 16, the illumination efficiency is deteriorated, and the luminance of the character display unit 16 is reduced. Therefore, the inclined portion 13 is provided above the light source 21 and the gradient θ of the inclined portion 13 is set so that the incident angle α of the light from the light source 21 is equal to or larger than the total reflection angle, or the surface of the inclined portion 13 is By setting the mirror surface, the light from the light source 21 is totally reflected by the inclined portion 13, and the amount of light transmitted directly above the light source 21 that does not require illumination is suppressed. And the light that reaches the character display unit 16 directly from the light source 21,
It is possible to increase the illuminating light amount of the character display unit 16 distant from the light source 21 to increase the luminance of the character.

【0017】以上説明したように本実施例においても、
第1実施例と同じように照明用の光源が文字表示部から
離れた位置にあっても傾斜部13の勾配θを、光源21
からの光の入射角αが全反射角度以上となるように設定
し、あるいは傾斜部13の表面を鏡面にすることによ
り、光を損失することなく効率よく導光し光源21から
離れた文字表示部16を照明することができる。従っ
て、光量の小さいチップタイプのLED等の光源を用い
る場合でも光の損失を少なくし、広範囲の文字を均一に
照射することができる。
As described above, also in this embodiment,
As in the first embodiment, even if the light source for illumination is located at a position distant from the character display unit, the inclination θ of the inclined portion
By setting the angle of incidence α of the light from the light source to be equal to or greater than the total reflection angle, or by making the surface of the inclined portion 13 a mirror surface, it is possible to efficiently guide the light without losing the light and to display a character separated from the light source 21 The part 16 can be illuminated. Therefore, even when a light source such as a chip type LED having a small light amount is used, the loss of light can be reduced, and a wide range of characters can be uniformly irradiated.

【0018】[0018]

【発明の効果】以上説明したように本発明によれば、釦
の裏面方向から照明するように設けられた光源の光を効
率よく導光し、釦の複数箇所の表示部を照明むらなく表
示させることができる。
As described above, according to the present invention, light from a light source provided to illuminate from the back side of a button is efficiently guided, and a plurality of display portions of the button are displayed evenly. Can be done.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明の第1実施例の釦の照明構造を示す図
で、(a)は平面図、(b)はA−A断面図である。
FIGS. 1A and 1B are diagrams showing an illumination structure of a button according to a first embodiment of the present invention, wherein FIG. 1A is a plan view and FIG.

【図2】本発明の第2実施例の釦の照明構造を示す図
で、(a)は平面図、(b)はB−B断面図である。
FIGS. 2A and 2B are diagrams showing an illumination structure of a button according to a second embodiment of the present invention, wherein FIG. 2A is a plan view and FIG.

【図3】従来の釦の照明構造を示す図で、(a)は平面
図、(b)はC−C断面図である。
3A and 3B are diagrams showing a conventional button illumination structure, wherein FIG. 3A is a plan view and FIG. 3B is a cross-sectional view taken along line CC.

【符号の説明】[Explanation of symbols]

10・・・・・押釦 11・・・・・上部 12、13・・勾配部 14、15、16・・文字表示部 20・・・・・基板 21・・・・・光源 30・・・・・前面 31・・・・・孔 p・・・・・・始点 θ・・・・・・傾斜角度 α・・・・・・入射角 ... Push button 11... Upper part 12, 13... Slope part 14, 15, 16... Character display part 20... Substrate 21.・ Front 31 ・ ・ ・ ・ ・ Pore p ・ ・ ・ ・ ・ ・ Start point θ ・ ・ ・ ・ ・ ・ Inclination angle α ・ ・ ・ ・ ・ ・ Incident angle

Claims (3)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】 複数の文字表示部を有する光透過性の釦
と、該釦の裏面方向から光を照明するように設けられた
光源とから成る釦の照明構造において、 前記文字表示部はそれぞれ前記光源からの距離が異なっ
ており、 前記釦の裏面には該光源からの光を透過光と反射光とに
分散させ、該文字表示部のそれぞれに均等に光が照射さ
れるような傾斜部を形成していることを特徴とする釦の
照明構造。
An illumination structure of a button including a light-transmitting button having a plurality of character display portions and a light source provided to illuminate light from the back side of the button, wherein each of the character display portions is A distance from the light source is different, and an inclined portion on the back surface of the button is such that light from the light source is dispersed into transmitted light and reflected light, and light is uniformly applied to each of the character display portions. A button illumination structure, characterized in that a button is formed.
【請求項2】 前記傾斜部の勾配を、前記文字表示部の
それぞれに均等に光が照射されるような勾配としている
ことを特徴とする請求項1記載の釦の照明構造。
2. The illumination structure of a button according to claim 1, wherein the inclination of the inclined portion is such that light is uniformly applied to each of the character display portions.
【請求項3】 前記傾斜部の表面状態を、前記文字表示
部のそれぞれに均等に光が照射されるような表面状態と
していることを特徴とする請求項2記載の釦の照明構
造。
3. The illumination structure for a button according to claim 2, wherein the surface state of the inclined portion is such that light is uniformly applied to each of the character display portions.
JP08105471A 1996-04-25 1996-04-25 Button lighting structure Expired - Fee Related JP3140367B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP08105471A JP3140367B2 (en) 1996-04-25 1996-04-25 Button lighting structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP08105471A JP3140367B2 (en) 1996-04-25 1996-04-25 Button lighting structure

Publications (2)

Publication Number Publication Date
JPH09293423A JPH09293423A (en) 1997-11-11
JP3140367B2 true JP3140367B2 (en) 2001-03-05

Family

ID=14408516

Family Applications (1)

Application Number Title Priority Date Filing Date
JP08105471A Expired - Fee Related JP3140367B2 (en) 1996-04-25 1996-04-25 Button lighting structure

Country Status (1)

Country Link
JP (1) JP3140367B2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6886955B2 (en) 2001-10-16 2005-05-03 Alps Electric Co., Ltd. Illumination structure of operation buttons provided on control panel of electronic equipment
JP4518082B2 (en) * 2007-01-19 2010-08-04 船井電機株式会社 Image forming apparatus
KR101710516B1 (en) * 2010-05-17 2017-02-27 한온시스템 주식회사 Controller of air conditioning system for automotive vehicles
JP5963626B2 (en) * 2012-09-24 2016-08-03 アルパイン株式会社 Operating device having an illumination display unit
JP2014167854A (en) * 2013-02-28 2014-09-11 Stanley Electric Co Ltd Switching equipment

Also Published As

Publication number Publication date
JPH09293423A (en) 1997-11-11

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