JP3644989B2 - control panel - Google Patents

control panel Download PDF

Info

Publication number
JP3644989B2
JP3644989B2 JP28358994A JP28358994A JP3644989B2 JP 3644989 B2 JP3644989 B2 JP 3644989B2 JP 28358994 A JP28358994 A JP 28358994A JP 28358994 A JP28358994 A JP 28358994A JP 3644989 B2 JP3644989 B2 JP 3644989B2
Authority
JP
Japan
Prior art keywords
light
guide member
filament
operation panel
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.)
Expired - Fee Related
Application number
JP28358994A
Other languages
Japanese (ja)
Other versions
JPH08146887A (en
Inventor
和康 中村
陽一 中村
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.)
Xanavi Informatics Corp
Original Assignee
Xanavi Informatics 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 Xanavi Informatics Corp filed Critical Xanavi Informatics Corp
Priority to JP28358994A priority Critical patent/JP3644989B2/en
Publication of JPH08146887A publication Critical patent/JPH08146887A/en
Application granted granted Critical
Publication of JP3644989B2 publication Critical patent/JP3644989B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Landscapes

  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Description

【0001】
【産業上の利用分野】
本発明は、オーディオ機器やビデオデッキ等のいわゆるAV機器等に用いられる操作パネルに関し、操作パネル上の各種スイッチに対応して設けられる透光部の明るさのばらつきを解消するものである。
【0002】
【従来の技術】
操作パネルは一般に、パネルケースと、その内側に配設される回路基板と、パネルケースおよび回路基板の間に介挿される導光部材とから成る。
図3はこの種の従来の操作パネルの正面図、図4はパネルケースの内側に配設される回路基板の外観図、図5は図3のAA線に沿ってパネルケースおよび回路基板を横から見た断面図であり、以下これらの図を用いて従来の車載用の操作パネルについて説明する。
【0003】
図3に示すパネルケース1には、コンパクトディスクを出し入れするための着脱孔2aと、カセットディスクを出し入れするための着脱孔2bと、時刻や放送局名等を表示する表示部3と、各種機能を選択するための複数のスイッチノブ4と、ロータリノブ5等が設けられている。また、各スイッチノブ4やロータリノブ5は一点鎖線で図示された透光部LTを有する。
【0004】
図4に示す回路基板6には、各スイッチノブ4に対応して設けられるスイッチ7と、透光部LTを点灯するための発光体8と、表示部3に対応して設けられ絵文字情報を表示する液晶パネルまたは蛍光表示管9とが設けられている。
【0005】
パネルケース1と回路基板6との間に介挿される導光部材10は図5のような形状をしており、発光体8から放射された光束(図示の矢印)を入射部101から取り込み、この光束を反射部102で反射させて出射部103から透光部LTに向けて放射する。導光部材10は各発光体8ごとに別々に設けられており、発光体8から放射された光束をそれぞれに対応する透光部LTに導く。例えば、図4に示す発光体8aからの光束は導光部材(不図示)を通過して図3に示す透光部LTaに導かれる。一方、図4に示す発光体8bには図3に示す透光部LTb〜LTdにそれぞれ対応する3つの導光部材(不図示)が接続されており、発光体8bからの光束は各導光部材を通過して各透光部材LTb〜LTdに導かれる。
【0006】
操作パネル上の透過部LTはいずれも、車両のライトスイッチをオンにするとそれに連動して点灯し、これにより運転者が夜間等にスイッチ位置を誤らないようにする。例えば、透過部LTeは、ロータリノブ5の設置箇所を示すために、ロータリノブ5の周囲を点灯する。
【0007】
【発明が解決しようとする課題】
発光体8内部のフィラメントFから放射される光量には指向性があり、図6に示すようにフィラメントFの長さ方向に直交する方向の放射光量が最も多い。図6の一点鎖線で図示した部分がフィラメントFの放射光量分布を示す。したがって、フィラメントFの長さ方向に直交する方向に導光部材10の入射面を設けた場合が最も多くの光量を導光部材に入射でき、透光部LTは最も明るくなる。
【0008】
ところが、従来の操作パネルは、フィラメントFの放射光量の指向性を考慮せずに発光体8を回路基板6に取り付けていたため、回路基板6に取り付けられるフィラメントFの向きがばらばらになるおそれがあった。このため、場合によっては、図7(a)に示すようにフィラメントFの長さ方向と導光部材10の入射面とが直角になることがあり、このような場合には導光部材10に入射される光量が少なくなり、透光部LTの明るさが減少してしまう。
【0009】
このように、従来の操作パネルは、回路基板6上のフィラメントFの向きがばらばらになるおそれが大きく、透光部LTの明るさにもばらつきが出ることが多かった。
【0010】
上記の問題を解決するためには、▲1▼明るさを調整可能な発光体を用いる、▲2▼導光部材の形状を変える、▲3▼発光体の配置を工夫する等が考えられるが、コスト高を招いたり開発製造工数が増大したり、あるいは発光体の不適正配置により温度上昇を招くなどの別の問題を引き起こすおそれがある。
【0011】
一方、実公平5-35498号公報に開示された車載用操作パネルは、操作パネルが振動しても発光体内部のフィラメントが断線しないように、操作パネルの振動方向に直交する方向にフィラメントを配置している。ところが、上記公報に開示された操作パネルは、単に操作パネルの振動方向を考慮してフィラメントの配置を定めているだけであり、各透光部の明るさのばらつきを抑えるようにフィラメントの配置を定めているわけではない。したがって、上記公報に開示された操作パネルに導光部材を設ける場合には、やはり上述した明るさのばらつきが出るおそれがある。
【0012】
本発明の目的は、フィラメントからの光束を効率よく透光部に導き、透光部の明るさのばらつきを解消するようにした操作パネルを提供することにある。
【0013】
【課題を解決するための手段】
実施例を示す図1,3,5,8に対応づけて本発明を説明すると、本発明は、フィラメントFを有する発光体8Aと、発光体8Aから放射された光束を所定方向に導光する第1の導光部材10と、第1の導光部材10から放射された光束を外部に放射する第1の透光部LTfと、発光体8Aから放射された光束を所定方向に導光する第2の導光部材10と、第2の導光部材10から放射された光束を外部に放射する第2の透光部LTgとを組合せて成る照明ユニットを含んだ操作パネルに適応され、第1の導光部材10および第2の導光部材10の入射面101はフィラメントFの長さ方向に略平行であり、第1の透光部LTfに対応する第1の導光部材10の入射面101とフィラメントFとの位置関係と、記第2の透光部LTgに対応する第2の導光部材10の入射面101とフィラメントFの位置関係とを共通にすることによって第1の透光部LTfと第2の透光部LTgとの明るさを共通にして上記目的は達成される。
請求項2に記載の発明は、請求項1に記載された操作パネルにおいて、フィラメントFの長さ方向に略平行に形成されたガイド面Gを有する位置決め部材を発光体8Aに備えるものである。
請求項3に記載の発明は、請求項1に記載された操作パネルにおいて、該発光体8Aの回路基板への取り付け方向を示す方向指示部Gを発光体8Aに備えるものである。
請求項4に記載の発明は、請求項3に記載された操作パネルにおいて、フィラメントFからの放射光量が最も多い方向を指示するように方向指示部Gを構成するものである。
【0014】
【作用】
請求項1に記載の発明では、2個の導光部材10と1個の発光体8Aを回路基板に取り付ける際、フィラメントFの長さ方向に略平行な方向に2個の導光部材10の入射面101を設け、そして2個の導光部材10の入射面101と発光体8AのフィラメントFとの位置関係を共通にするので、フィラメントFからの放射光量が最も効率よく導光部材10に入射され、そして、透過部LTf,LTgの明るさのばらつきを解消することができる。
請求項2に記載の発明では、発光体8Aの位置決め部材83に、フィラメントFの長さ方向に略平行なガイド面Gを形成するため、発光体8Aの回路基板への取り付け方向がわかりやすくなる。
請求項3に記載の発明では、発光体8Aの回路基板への取り付け方向を示す方向指示部Gを発光体8Aに備えるため、発光体8Aの回路基板への取り付け方向がわかりやすくなる。
請求項4に記載の発明では、方向指示部GによってフィラメントFからの放射光量が最も多い方向を指示するため、導光部材10に入射される光量を最大にすることができる。
【0015】
なお、本発明の構成を説明する上記課題を解決するための手段と作用の項では、本発明を分かり易くするために実施例の図を用いたが、これにより本発明が実施例に限定されるものではない。
【0016】
【実施例】
本発明による操作パネルは、従来と同様にパネルケース、回路基板および導光部材から成り、パネルケースおよび回路基板の外観図はそれぞれ図3,4と共通するため、以下では相違点を中心に説明する。
図1は本実施例の発光体8Aの斜視図、図2は発光体8Aを横から見た断面図である。図示のように、本実施例の発光体8Aは、一対の電極ステム81の各先端部の間に取り付けられるフィラメントFと、フィラメントFおよび電極ステム81を封止するガラス管82と、ガラス管82の下部に取り付けられフィラメントFの長さ方向に平行に形成されたガイド面Gを有する位置決め部材83とから成り、位置決め部材83の裏側には回路基板6に取り付けるための不図示の接続ピンが設けられている。
【0017】
図7(b)は上記発光体8Aの回路基板6への取り付け方向を示す図であり、液晶パネルの正面方向から見たものである。図7に示す10は発光体8A内部のフィラメントFからの光束を透光部LTに導く導光部材である。なお、発光体8A、導光部材10および透光部LTの位置関係は、図5に示す従来の操作パネルと共通する。
【0018】
図1に示す発光体8Aを回路基板6に取り付ける際は、発光体8Aの位置決め部材83のガイド面Gを導光部材10の入射面101に平行にする。すなわち、フィラメントFの長さ方向と導光部材10の入射面101とを平行にする。このようにする理由は、フィラメントFの放射光量は図6に示すようにその長さ方向に直交する方向に対して最も指向性が強く、その最も指向性が強い方向に導光部材10の入射面101を配置することにより、導光部材10に入射される光量をなるべく多くするためである。これにより、フィラメントFから放射された光束は効率よく導光部材10に入射され、透光部LTが最も明るくなる。したがって、発光量の多い高価な発光体を使用しなくて済み、コストダウンが図れる。
【0019】
また、本実施例では、発光体8Aの下部の位置決め部材83に回路基板6への取り付け方向を示すガイド面Gを設けたため、発光体8A内部のフィラメントFと導光部材10の入射面101との位置関係を各発光体8Aで共通にすることができる。したがって、導光部材10に入射される光量を一定にでき、透光部LTの明るさのばらつきを解消できる。このため、透光部LTの明るさのばらつきを解消するための様々な措置、例えば導光部材10の形状の変更や発光体8Aの配置変更等が不要となり、コストダウンおよび開発工数の低減が図れる。
【0020】
さらに、本実施例の発光体8Aを回路基板6に取り付ける際は、ガイド面Gと導光部材10の入射面101とを平行にするだけで済むため、操作パネルの製造を自動化しやすくなる。
【0021】
上記実施例では、導光部材10の入射面101の真下に発光体8Aを設置する例を説明したが、例えば図3に示すように、横に並んだ2個の透光部LTf、LTgを1個の発光体8cによって点灯する場合は、図4に示すように、各透光部LTf,LTgに対応する2個の導光部材(不図示)の中間位置に発光体8cを設置し、発光体8cのフィラメントFの長さ方向が各導光部材の入射面に平行になるようにすればよい。このようにすれば、1個の発光体に接続される複数の透光部LTの明るさをすべて共通にできる。
【0022】
一方、互いに斜め方向に位置する2個の透光部を1個の発光体によって点灯する場合は、図8に示すように、各透光部LTに対応する2個の導光部材10をそれぞれ斜めに設置し、各導光部材10を結ぶ方向とフィラメントFの長さ方向とが直角になるようにすればよい。
【0023】
図1の発光体8Aの位置決め部材83は、フィラメントFの長さ方向に平行なガイド面Gを有するが、ガイド面Gを形成する代りに、位置決め部材83表面にフィラメントFの長さ方向を示す矢印等を印刷表示してもよい。
【0024】
このように構成した実施例にあっては、ガイド面Gが方向指示部に対応する。
【0025】
【発明の効果】
以上詳細に説明したように、本発明によれば、2個の導光部材の入射面と発光体のフィラメントとの位置関係を共通にするので、1個の発光体に接続される複数の透光部の明るさをすべて共通にできる。また、フィラメントは一般にその長さ方向に最も多くの光量を放射することを考慮に入れ、フィラメントの長さ方向に略平行な方向に導光部材の入射面を設けるようにしたため、導光部材に入射される光量を増やせる。
請求項2に記載の発明によれば、フィラメントの長さ方向に略平行に形成されたガイド面を有する位置決め部材を備えるため、発光体の回路基板への取り付け方向がわかりやすくなる。したがって、フィラメントから導光部材に入射される光量をほぼ一定に維持でき、これにより透光部の明るさのばらつきを抑えることができる。
請求項3に記載の発明によれば、発光体の回路基板への取り付け方向を示す方向指示部を発光体に設けるため、発光体の回路基板への取り付け方向がわかりやすくなる。
請求項4に記載の発明によれば、フィラメントからの放射光量が最も多い方向を方向指示部によって指示するため、導光部材に入射される光量を最大にすることができる。
【図面の簡単な説明】
【図1】本発明による操作パネルに用いられる発光体の斜視図。
【図2】図1の発光体の側面図。
【図3】操作パネルの正面図。
【図4】操作パネルの内側に配設される回路基板の外観図。
【図5】図3のAA線に沿った断面図。
【図6】発光体内部のフィラメントの放射光量分布を示す図。
【図7】発光体と導光部材との位置関係を示す図。
【図8】1個の発光体からの光束を2個の導光部材に入射させる例を示す図。
【符号の説明】
1 パネルケース
2a,2b 着脱孔
3 表示部
4 スイッチノブ
5 ロータリノブ
6 回路基板
7 スイッチ
8 発光体
9 液晶パネル
10 導光部材
[0001]
[Industrial application fields]
The present invention relates to an operation panel used for a so-called AV device such as an audio device or a video deck, and eliminates variations in brightness of a light transmitting portion provided corresponding to various switches on the operation panel.
[0002]
[Prior art]
The operation panel generally includes a panel case, a circuit board disposed inside the panel case, and a light guide member interposed between the panel case and the circuit board.
3 is a front view of a conventional operation panel of this type, FIG. 4 is an external view of a circuit board disposed inside the panel case, and FIG. 5 is a side view of the panel case and the circuit board along the line AA in FIG. A conventional operation panel for vehicle use will be described below with reference to these drawings.
[0003]
The panel case 1 shown in FIG. 3 includes an attaching / detaching hole 2a for inserting / removing a compact disc, an attaching / detaching hole 2b for inserting / removing a cassette disc, a display unit 3 for displaying time and broadcast station name, and various functions. A plurality of switch knobs 4 and a rotary knob 5 are provided. Further, each switch knob 4 and rotary knob 5 have a translucent portion LT illustrated by a one-dot chain line.
[0004]
The circuit board 6 shown in FIG. 4 has a switch 7 provided corresponding to each switch knob 4, a light emitter 8 for lighting the translucent part LT, and pictogram information provided corresponding to the display part 3. A liquid crystal panel or a fluorescent display tube 9 for displaying is provided.
[0005]
The light guide member 10 inserted between the panel case 1 and the circuit board 6 has a shape as shown in FIG. 5, and takes in a light beam (arrow shown) from the light emitter 8 from the incident portion 101. The luminous flux is reflected by the reflecting portion 102 and emitted from the emitting portion 103 toward the light transmitting portion LT. The light guide member 10 is provided separately for each light emitter 8, and guides the light flux emitted from the light emitter 8 to the corresponding translucent part LT. For example, the light beam from the light emitter 8a shown in FIG. 4 passes through a light guide member (not shown) and is guided to the light transmitting portion LTa shown in FIG. On the other hand, the light emitter 8b shown in FIG. 4 is connected to three light guide members (not shown) respectively corresponding to the light transmitting portions LTb to LTd shown in FIG. It passes through the member and is guided to each of the translucent members LTb to LTd.
[0006]
All of the transmission parts LT on the operation panel are lit in conjunction with the light switch of the vehicle being turned on, thereby preventing the driver from mistaking the switch position at night or the like. For example, the transmission part LTe lights up the periphery of the rotary knob 5 in order to indicate the installation location of the rotary knob 5.
[0007]
[Problems to be solved by the invention]
The amount of light emitted from the filament F inside the light emitter 8 has directivity, and the amount of emitted light in the direction perpendicular to the length direction of the filament F is the largest as shown in FIG. A portion indicated by a one-dot chain line in FIG. Therefore, when the incident surface of the light guide member 10 is provided in a direction orthogonal to the length direction of the filament F, the largest amount of light can be incident on the light guide member, and the translucent part LT is brightest.
[0008]
However, since the conventional operation panel attaches the light emitter 8 to the circuit board 6 without considering the directivity of the amount of radiation of the filament F, the orientation of the filament F attached to the circuit board 6 may vary. It was. For this reason, in some cases, as shown in FIG. 7A, the length direction of the filament F and the incident surface of the light guide member 10 may be perpendicular to each other. The amount of incident light is reduced, and the brightness of the light transmitting part LT is reduced.
[0009]
As described above, in the conventional operation panel, the orientation of the filament F on the circuit board 6 is likely to vary, and the brightness of the translucent part LT often varies.
[0010]
In order to solve the above problems, (1) using a light-emitting body capable of adjusting the brightness, (2) changing the shape of the light guide member, (3) devising the arrangement of the light-emitting body, etc. In addition, there is a possibility that another problem such as an increase in cost, an increase in the number of development and manufacturing steps, or an increase in temperature due to inappropriate arrangement of the light emitters may be caused.
[0011]
On the other hand, the in-vehicle operation panel disclosed in Japanese Utility Model Publication No. 5-35498 has a filament arranged in a direction perpendicular to the vibration direction of the operation panel so that the filament inside the light emitter does not break even if the operation panel vibrates. doing. However, the operation panel disclosed in the above publication merely determines the arrangement of the filaments in consideration of the vibration direction of the operation panel, and the arrangement of the filaments is suppressed so as to suppress variations in the brightness of each light transmitting part. It is not defined. Therefore, when the light guide member is provided on the operation panel disclosed in the above publication, the above-described brightness variation may occur.
[0012]
An object of the present invention is to provide an operation panel that efficiently guides a light beam from a filament to a light-transmitting portion and eliminates variations in brightness of the light-transmitting portion.
[0013]
[Means for Solving the Problems]
The present invention will be described with reference to FIGS. 1, 3, 5 and 8 showing embodiments. The present invention guides a light emitter 8A having a filament F and a light beam emitted from the light emitter 8A in a predetermined direction. The first light guide member 10, the first light transmitting part LTf that radiates the light beam emitted from the first light guide member 10, and the light beam emitted from the light emitter 8A are guided in a predetermined direction. The second light guide member 10 is adapted to an operation panel including an illumination unit including a combination of a second light guide member 10 and a second light transmitting part LTg that emits a light beam emitted from the second light guide member 10 to the outside. Incident surfaces 101 of the first light guide member 10 and the second light guide member 10 are substantially parallel to the length direction of the filament F, and the first light guide member 10 corresponding to the first light transmitting portion LTf is incident. Corresponding to the positional relationship between the surface 101 and the filament F and the second translucent part LTg. By making the incident surface 101 of the second light guide member 10 and the positional relationship between the filaments F common, the brightness of the first light-transmitting part LTf and the second light-transmitting part LTg is made common, and the above object is achieved. Achieved.
According to a second aspect of the present invention, in the operation panel according to the first aspect, the light emitter 8A includes a positioning member having a guide surface G formed substantially parallel to the length direction of the filament F.
According to a third aspect of the invention, the operation panel of claim 1, in which comprises a direction indicating section G showing the mounting direction of the circuit board of the light emitting member 8A in the light-emitting body 8A.
According to a fourth aspect of the present invention, in the operation panel according to the third aspect, the direction indicating unit G is configured to indicate the direction in which the amount of radiated light from the filament F is the largest.
[0014]
[Action]
In the invention according to claim 1, when the two light guide members 10 and one light emitter 8 </ b > A are attached to the circuit board, the two light guide members 10 are arranged in a direction substantially parallel to the length direction of the filament F. Since the incident surface 101 is provided and the positional relationship between the incident surfaces 101 of the two light guide members 10 and the filament F of the light emitter 8A is made common, the amount of radiated light from the filament F is most efficiently transmitted to the light guide member 10. It is possible to eliminate variations in brightness of the incident portions LTb and LTg .
According to the second aspect of the present invention, since the guide surface G substantially parallel to the length direction of the filament F is formed on the positioning member 83 of the light emitter 8A, the mounting direction of the light emitter 8A to the circuit board becomes easy to understand. .
In the invention described in claim 3 , since the light-emitting body 8A is provided with the direction indicating portion G indicating the mounting direction of the light-emitting body 8A to the circuit board, the mounting direction of the light-emitting body 8A to the circuit board can be easily understood.
In the fourth aspect of the invention, since the direction indicating unit G indicates the direction in which the amount of light emitted from the filament F is the largest, the amount of light incident on the light guide member 10 can be maximized.
[0015]
In the section of means and action for solving the above-described problems for explaining the configuration of the present invention, the drawings of the embodiments are used for easy understanding of the present invention. However, the present invention is limited to the embodiments. It is not something.
[0016]
【Example】
The operation panel according to the present invention includes a panel case, a circuit board, and a light guide member as in the prior art, and the external view of the panel case and the circuit board is the same as that in FIGS. To do.
FIG. 1 is a perspective view of the light emitter 8A of this embodiment, and FIG. 2 is a cross-sectional view of the light emitter 8A as viewed from the side. As shown in the figure, the light emitter 8A of the present embodiment includes a filament F attached between the tip portions of a pair of electrode stems 81, a glass tube 82 for sealing the filament F and the electrode stem 81, and a glass tube 82. And a positioning member 83 having a guide surface G formed in parallel to the length direction of the filament F. On the back side of the positioning member 83, connection pins (not shown) for mounting on the circuit board 6 are provided. It has been.
[0017]
FIG. 7B is a view showing a direction in which the light emitter 8A is attached to the circuit board 6, as viewed from the front side of the liquid crystal panel. Reference numeral 10 shown in FIG. 7 denotes a light guide member that guides the light beam from the filament F inside the light emitter 8A to the light transmitting part LT. Note that the positional relationship among the light emitter 8A, the light guide member 10, and the light transmitting portion LT is the same as that of the conventional operation panel shown in FIG.
[0018]
When the light emitter 8A shown in FIG. 1 is attached to the circuit board 6, the guide surface G of the positioning member 83 of the light emitter 8A is made parallel to the incident surface 101 of the light guide member 10. That is, the length direction of the filament F and the incident surface 101 of the light guide member 10 are made parallel. The reason for this is that the amount of radiated light of the filament F has the strongest directivity with respect to the direction orthogonal to the length direction as shown in FIG. 6, and the light guide member 10 is incident in the direction with the strongest directivity. This is because by arranging the surface 101, the amount of light incident on the light guide member 10 is increased as much as possible. Thereby, the light beam radiated from the filament F is efficiently incident on the light guide member 10, and the translucent part LT becomes brightest. Therefore, it is not necessary to use an expensive light emitter with a large amount of light emission, and the cost can be reduced.
[0019]
In the present embodiment, the guide member G indicating the direction of attachment to the circuit board 6 is provided on the positioning member 83 below the light emitter 8A, so that the filament F inside the light emitter 8A, the incident surface 101 of the light guide member 10, and Can be made common to the respective light emitters 8A. Therefore, the amount of light incident on the light guide member 10 can be made constant, and variations in the brightness of the light transmitting part LT can be eliminated. For this reason, various measures for eliminating the variation in the brightness of the light transmitting part LT, such as a change in the shape of the light guide member 10 and a change in the arrangement of the light emitter 8A, are not required, thereby reducing costs and reducing development man-hours. I can plan.
[0020]
Furthermore, when attaching the light emitter 8A of the present embodiment to the circuit board 6, it is only necessary to make the guide surface G and the incident surface 101 of the light guide member 10 parallel to each other, which makes it easier to automate the manufacture of the operation panel.
[0021]
In the above embodiment, the example in which the light emitter 8A is installed directly below the incident surface 101 of the light guide member 10 has been described. For example, as shown in FIG. 3, two light-transmitting portions LTf and LTg arranged side by side are arranged. In the case of lighting by one light emitter 8c, as shown in FIG. 4, the light emitter 8c is installed at an intermediate position between two light guide members (not shown) corresponding to the respective light transmitting portions LTf and LTg, What is necessary is just to make it the length direction of the filament F of the light-emitting body 8c become parallel to the incident surface of each light guide member. In this way, the brightness of the plurality of translucent portions LT connected to one light emitter can be made common.
[0022]
On the other hand, when two light-transmitting parts positioned obliquely to each other are turned on by one light emitter, two light guide members 10 corresponding to the respective light-transmitting parts LT are respectively provided as shown in FIG. It may be installed obliquely so that the direction connecting the light guide members 10 and the length direction of the filament F are perpendicular to each other.
[0023]
1 has a guide surface G parallel to the length direction of the filament F, but instead of forming the guide surface G, the length direction of the filament F is shown on the surface of the positioning member 83. An arrow or the like may be printed and displayed.
[0024]
In the embodiment configured as described above, the guide surface G corresponds to the direction instruction section.
[0025]
【The invention's effect】
As described above in detail, according to the present invention, since the positional relationship between the incident surface of the two light guide members and the filament of the light emitter is made common, a plurality of transparent members connected to one light emitter are provided. All the brightness of the light part can be made common. In addition, in consideration of the fact that the filament generally radiates the largest amount of light in the length direction, the incident surface of the light guide member is provided in a direction substantially parallel to the length direction of the filament. Increasing the amount of incident light.
According to the second aspect of the present invention, since the positioning member having the guide surface formed substantially parallel to the length direction of the filament is provided, the mounting direction of the light emitter to the circuit board can be easily understood. Therefore, the amount of light incident on the light guide member from the filament can be maintained substantially constant, thereby suppressing variations in brightness of the light transmitting portion.
According to the third aspect of the present invention, the direction indicating portion indicating the direction in which the light emitter is attached to the circuit board is provided in the light emitter, so that the direction in which the light emitter is attached to the circuit board can be easily understood.
According to the fourth aspect of the invention, the direction indicating unit indicates the direction in which the amount of radiated light from the filament is the largest, so that the amount of light incident on the light guide member can be maximized.
[Brief description of the drawings]
FIG. 1 is a perspective view of a light emitter used in an operation panel according to the present invention.
FIG. 2 is a side view of the light emitter of FIG.
FIG. 3 is a front view of an operation panel.
FIG. 4 is an external view of a circuit board disposed inside an operation panel.
5 is a cross-sectional view taken along line AA in FIG.
FIG. 6 is a diagram showing a radiation amount distribution of a filament inside a light emitter.
FIG. 7 is a diagram illustrating a positional relationship between a light emitter and a light guide member.
FIG. 8 is a diagram illustrating an example in which a light beam from one light emitter is incident on two light guide members.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Panel case 2a, 2b Removable hole 3 Display part 4 Switch knob 5 Rotary knob 6 Circuit board 7 Switch 8 Light emitter 9 Liquid crystal panel 10 Light guide member

Claims (4)

フィラメントを有する発光体と、
前記発光体から放射された光束を所定方向に導光する第1の導光部材と、
前記第1の導光部材から放射された光束を外部に放射する第1の透光部と、
前記発光体から放射された光束を所定方向に導光する第2の導光部材と、
前記第2の導光部材から放射された光束を外部に放射する第2の透光部とを組合せて成る照明ユニットを含んだ操作パネルにおいて、
前記第1の導光部材および前記第2の導光部材の入射面は前記フィラメントの長さ方向に略平行であり、
前記第1の透光部に対応する前記第1の導光部材の入射面と前記フィラメントとの位置関係と、前記第2の透光部に対応する前記第2の導光部材の入射面と前記フィラメントの位置関係とを共通にすることによって前記第1の透光部と前記第2の透光部との明るさを共通にすることを特徴とする操作パネル。
A light emitter having a filament;
A first light guide member for guiding a light beam emitted from the light emitter in a predetermined direction;
A first light transmissive portion for radiating the light flux emitted from the first light guide member to the outside;
A second light guide member for guiding a light beam emitted from the light emitter in a predetermined direction;
In an operation panel including an illumination unit that is combined with a second light transmissive portion that radiates the light beam emitted from the second light guide member to the outside,
The incident surfaces of the first light guide member and the second light guide member are substantially parallel to the length direction of the filament,
A positional relationship between the incident surface of the first light guide member corresponding to the first light transmitting part and the filament, and an incident surface of the second light guide member corresponding to the second light transmitting part; An operation panel characterized in that the brightness of the first light-transmitting part and the second light-transmitting part are made common by making the positional relationship of the filaments common.
請求項1に記載された操作パネルにおいて、
前記発光体は、前記フィラメントの長さ方向に略平行に形成されたガイド面を有する位置決め部材を備えることを特徴とする操作パネル。
In the operation panel according to claim 1,
The operation panel, wherein the light emitter includes a positioning member having a guide surface formed substantially parallel to a length direction of the filament.
請求項1に記載された操作パネルにおいて、
前記発光体は、該発光体の回路基板への取り付け方向を示す方向指示部を有することを特徴とする操作パネル。
In the operation panel according to claim 1 ,
The operation panel according to claim 1, wherein the light emitter has a direction indicating portion indicating a direction in which the light emitter is attached to the circuit board.
請求項3に記載された操作パネルにおいて、
前記方向指示部は、前記フィラメントからの放射光量が最も多い方向を指示することを特徴とする操作パネル。
In the operation panel according to claim 3,
The operation panel according to claim 1, wherein the direction instructing unit instructs a direction in which the amount of light emitted from the filament is the largest.
JP28358994A 1994-11-17 1994-11-17 control panel Expired - Fee Related JP3644989B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP28358994A JP3644989B2 (en) 1994-11-17 1994-11-17 control panel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP28358994A JP3644989B2 (en) 1994-11-17 1994-11-17 control panel

Publications (2)

Publication Number Publication Date
JPH08146887A JPH08146887A (en) 1996-06-07
JP3644989B2 true JP3644989B2 (en) 2005-05-11

Family

ID=17667470

Family Applications (1)

Application Number Title Priority Date Filing Date
JP28358994A Expired - Fee Related JP3644989B2 (en) 1994-11-17 1994-11-17 control panel

Country Status (1)

Country Link
JP (1) JP3644989B2 (en)

Also Published As

Publication number Publication date
JPH08146887A (en) 1996-06-07

Similar Documents

Publication Publication Date Title
JP3644482B2 (en) Indicator light
US6550953B1 (en) Light emitting diode lamp device
US6200010B1 (en) Display arrangement for a motor vehicle
KR100693979B1 (en) Light source support device, lighting device, and liquid crystal display
JP3178304B2 (en) Pointer device
US5531181A (en) Apparatus for illuminating instrument cluster pointers
JP2848772B2 (en) Surface light source device
JPH06349306A (en) Lighting fixture of led light source
JP3644989B2 (en) control panel
JP3674193B2 (en) Pointer device
JP4352528B2 (en) Lighting device for vehicle meter
JP2001071813A (en) Lighting system for vehicular meter
JP3722644B2 (en) Liquid crystal display device
JP4366857B2 (en) Meter unit illumination device
JPH10298935A (en) Self-luminescence type line of sight guide marker
CN220287242U (en) Indicator lamp assembly and automobile charging indicator lamp
JP3216639B2 (en) Pointer device
CN110173660B (en) Dot matrix screen car light and have its vehicle
JP4350828B2 (en) Display device using surface emitting light source device
JP3857643B2 (en) Guidelines
JP3950407B2 (en) Display and light collector
JP2571671Y2 (en) Lighting system for vehicle heat control panel
JPH04297826A (en) Lighting device
JP2001041777A (en) Meter device
JP2001281007A (en) Meter device

Legal Events

Date Code Title Description
A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20040409

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20040427

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20040614

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20040914

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20041108

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20041207

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20041221

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20050118

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20050202

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20080210

Year of fee payment: 3

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20090210

Year of fee payment: 4

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20100210

Year of fee payment: 5

LAPS Cancellation because of no payment of annual fees
S111 Request for change of ownership or part of ownership

Free format text: JAPANESE INTERMEDIATE CODE: R313111

R371 Transfer withdrawn

Free format text: JAPANESE INTERMEDIATE CODE: R371