JPS6228702A - Optical display device - Google Patents

Optical display device

Info

Publication number
JPS6228702A
JPS6228702A JP16752885A JP16752885A JPS6228702A JP S6228702 A JPS6228702 A JP S6228702A JP 16752885 A JP16752885 A JP 16752885A JP 16752885 A JP16752885 A JP 16752885A JP S6228702 A JPS6228702 A JP S6228702A
Authority
JP
Japan
Prior art keywords
light
optical
optical path
optical fiber
path changing
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
JP16752885A
Other languages
Japanese (ja)
Inventor
Kazuo Chiba
一夫 千葉
Yoshiaki Oishi
大石　義昭
Kenichi Fuse
憲一 布施
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.)
Furukawa Electric Co Ltd
Original Assignee
Furukawa Electric Co 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 Furukawa Electric Co Ltd filed Critical Furukawa Electric Co Ltd
Priority to JP16752885A priority Critical patent/JPS6228702A/en
Publication of JPS6228702A publication Critical patent/JPS6228702A/en
Pending legal-status Critical Current

Links

Landscapes

  • Light Guides In General And Applications Therefor (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

PURPOSE:To make an optical display device thinner in thickness, by providing an optical path changing body at the back of a light intercepting display board in corresponding to the light transmitting hole of the board so that an optical fiber can be installed in parallel with the display board. CONSTITUTION:When light is sent from an LED array 7 to a specific optical fiber 5, the optical path is changed by 90 deg. by means of an optical path changing body 4 at the end of the optical fiber 5 and the light is made incident on a light transmitting piece 3 which becomes bright upon receiving the light and makes display of numerals, etc. Since a diameter expanded section 5A is provided at the end of the optical fiber 5, the light is expanded and, since the surface of the optical path changing body 4 is finished to have a rough surface, the light is further spread and is made incident on the light transmitting piece 3 as indirect light, and thus, the light transmitting piece 3 becomes uniformly bright. When such a constitution is used, the device can be made thinner in thickness.

Description

【発明の詳細な説明】 （産業上の利用分野） 本発明は、数字等の情報を光学的に表示する光表示装置
に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an optical display device that optically displays information such as numbers.

（従来技術） 従来の光表示装置は、遮光表示板に表示ずべぎ形状に合
せて透光孔があ【ノられ、該透光孔には直接、或いは透
光片を介して光ファイバの端面が配置され、光ファイバ
からの光の放出により所要の情報の表示を行う構造であ
った。(Prior Art) In a conventional optical display device, a light-transmitting hole is formed on a light-shielding display plate in accordance with the shape of the display, and the end face of an optical fiber is inserted into the light-transmitting hole directly or through a light-transmitting piece. was arranged, and the required information was displayed by emitting light from the optical fiber.

（発明が解決しようとする問題点） しかしながら、従来のこのような光表示装置にあっては
、光ファイバが遮光表示板に対して直交づる向きで取付
けられていたので、奥行き方向の寸法が大きくなり、薄
形化が図れない問題点があった。(Problem to be Solved by the Invention) However, in such conventional optical display devices, the optical fibers are installed perpendicularly to the light-shielding display panel, so the depth dimension is large. Therefore, there was a problem that it was not possible to make the device thinner.

本発明の目的は、薄形化を容易に図ることができる光表
示装置を提供することにある。An object of the present invention is to provide an optical display device that can be easily made thinner.

（問題点を解決するための手段） 上記の目的を達成するための本発明の構成を、実施例に
対応する第１図乃至第７図を用いて説明すると、本発明
は遮光表示板１に透光孔２があけられ、光ファイバ５か
ら伝送された光が前記透光孔２から放出されて発光表示
を行う光表示装置において、前記透光孔２に対応して前
記遮光表示板１の裏側に光路変更体４が配設され、前記
光路変更体４の入射端には前記遮光表示板１に対して平
行する向きになっている前記光ファイバ５の先端部が配
設されていることを特徴とするものである。(Means for Solving the Problems) The structure of the present invention for achieving the above object will be explained using FIGS. 1 to 7 corresponding to the embodiments. In an optical display device in which a light-transmitting hole 2 is opened and light transmitted from an optical fiber 5 is emitted from the light-transmitting hole 2 to perform a light-emitting display, a portion of the light-shielding display plate 1 corresponding to the light-transmitting hole 2 is provided. An optical path changing body 4 is disposed on the back side, and the tip end of the optical fiber 5, which is oriented parallel to the light shielding display plate 1, is disposed at the input end of the optical path changing body 4. It is characterized by:

（作用） このような構造にすると、光ファイバ５の先端側は遮光
表示板１に対して平行する向きになり、装置の薄形化が
図れる。このように光ファイバ５の先端側が遮光表示板
１に対しで平行にイＩ−）Ｃも、その先端には光路変更
体４が配設されていて光路の変更を行うので、透光孔２
から支障なく光の放出を行える。(Function) With such a structure, the tip side of the optical fiber 5 is oriented parallel to the light-shielding display plate 1, and the device can be made thinner. In this way, even when the tip side of the optical fiber 5 is parallel to the light-shielding display plate 1, the optical path changing body 4 is disposed at the tip and changes the optical path, so that the light transmitting hole 2
Light can be emitted without any hindrance.

（実施例） 以下本発明の実施例を図面を参照して詳細に説明する。(Example) Embodiments of the present invention will be described in detail below with reference to the drawings.

第１図乃至第６図は本発明の第１実施例を示したもので
ある。この光表示装置は、遮光表示板１に表示すべき数
字等の形状に合せて複数の透光孔２が設けられ、各透光
孔２には透明プラスチック等よりなる透光片３がそれぞ
れ嵌着されている。、遮光表示板１の裏側には光路をほ
ぼ直角に変更するスプーン状反射体よりなる光路変更体
４がそれぞれ配設されている。これら光路変更体４の入
射側には遮光表示板１に対して平行する向きの各光ファ
イバ５の先端拡径部５Ａがそれぞれ対向配設されている
。各光路変更体４はその取付は部４Ａが各光ファイバ５
にそれぞれ圧着され、各光ファイバ５の先端部は接着剤
６で遮光表示板１の裏面にそれぞれ固定されている。各
光ファイバ５の他端は発光ダイオードアレイ７に接続さ
れ、光が特定の光ファイバ５に送り込まれるようになっ
ている。光路変更体４は、例えば、アルミ板を第４図に
示すように打ら扱き、その丸形の該光路変更体４をスプ
ーン状に窪まぜ、その四角形の取付は部４Ａを筒状に丸
めることにより形成されている。光路変更体４の凹形反
射面は粗面化されている。光ファイバ５の先端拡径部５
Ａは、例えば、光ファイバ５の先端を加熱軟化させて平
板に押しつけることにより先端が変形して形成される。1 to 6 show a first embodiment of the present invention. In this optical display device, a plurality of light-transmitting holes 2 are provided on a light-shielding display plate 1 according to the shapes of numbers, etc. to be displayed, and a light-transmitting piece 3 made of transparent plastic or the like is fitted into each light-transmitting hole 2. It is worn. On the back side of the light-shielding display plate 1, an optical path changing body 4 made of a spoon-shaped reflector that changes the optical path to a substantially right angle is provided. On the incident side of these optical path changing bodies 4, enlarged diameter end portions 5A of each optical fiber 5 are disposed to face each other and are oriented parallel to the light shielding display plate 1. Each optical path changing body 4 is attached to a portion 4A of each optical fiber 5.
The tips of the optical fibers 5 are respectively fixed to the back surface of the light-shielding display plate 1 with an adhesive 6. The other end of each optical fiber 5 is connected to a light emitting diode array 7 so that light is directed into a particular optical fiber 5. For the optical path changing body 4, for example, an aluminum plate is beaten as shown in FIG. It is formed by The concave reflective surface of the optical path changing body 4 is roughened. Expanded diameter portion 5 at the tip of optical fiber 5
A is formed by, for example, deforming the tip of the optical fiber 5 by heating and softening the tip and pressing it against a flat plate.

このような光表示装置は、発光ダイオードアレイ７から
特定の光ファイバ５に光が送られると、その光ファイバ
５の先端の光路変更体４で光路が９０”変更されて透孔
片３に入射され、該透孔片３が輝いて数字等の表示を行
う。光ファイバ５の先端拡径部５Ａを設けられているの
で光が拡がり、また光路変更体４の表面が粗面化されて
いるので更に光が拡散されて間接光として透孔片３に入
射され、透孔片３が一様に輝や＜、にうになる。In such an optical display device, when light is sent from a light emitting diode array 7 to a specific optical fiber 5, the optical path is changed by 90'' by an optical path changer 4 at the tip of the optical fiber 5, and the light enters the transparent hole piece 3. The through-hole piece 3 shines to display numbers, etc.The expanded diameter portion 5A at the tip of the optical fiber 5 spreads the light, and the surface of the optical path changing body 4 is roughened. Therefore, the light is further diffused and enters the through-hole piece 3 as indirect light, and the through-hole piece 3 becomes uniformly bright and dark.

第７図は本発明に係る光表示装置の他の例を示したもの
である。この例では、光路変更体４として４５°の反射
面／ｌＢをもつプリズムを用い、この光路変更体４の先
端を遮光表示板１の透光孔２に嵌着した例を示したもの
である。この場合、光ファイバ５の先端拡径部５Ａは該
プリズムよりなる光路変更体４０入射面に当接されてい
る。FIG. 7 shows another example of the optical display device according to the present invention. In this example, a prism having a reflection surface/lB of 45° is used as the optical path changing body 4, and the tip of the optical path changing body 4 is fitted into the transparent hole 2 of the light shielding display plate 1. . In this case, the enlarged diameter end portion 5A of the optical fiber 5 is in contact with the entrance surface of the optical path changing body 40 made of the prism.

このような光表示装置は、別個の透孔片３が不安になっ
て構造が簡略化され、また光路変更体４の反射面４Ｂが
くもる等の問題もなくなる。Such an optical display device has a simplified structure due to the insecurity of the separate through-hole piece 3, and also eliminates problems such as clouding of the reflective surface 4B of the optical path changing body 4.

上記実施例では、複数の透光孔２で１つの情報を表示す
るようにしたが、例えば電源のオン、オフ表示の場合に
は１つの透光孔２で１つの情報を表示することができ、
このような場合にも本発明は適用°Ｃきるものである。In the above embodiment, one piece of information is displayed using a plurality of transparent holes 2, but for example, in the case of power on/off display, one piece of information can be displayed using one transparent hole 2. ,
The present invention can also be applied to such cases.

（発明の効果） 以上説明したように本発明に係る光表示装置は、遮光表
示板の透光孔に対応して該遮光表示板の裏側に光路変更
体を設けたので、光ファイバを遮光表示板に対して平行
に配置することができ、光表示装置の薄形化を図ること
ができる。(Effects of the Invention) As explained above, the optical display device according to the present invention has an optical path changer provided on the back side of the light-shielding display plate corresponding to the light-transmitting hole of the light-shielding display plate, so that the optical fiber can be used as a light-shielding display. It can be arranged parallel to the plate, and the optical display device can be made thinner.

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

第１図は本発明に係る光表示装置の第１実施例の要部縦
断面図、第２図は第１実施例の光表示装置の斜視図、第
３図は第１実施例の場合の光ファイバと光路変更体の取
付は関係を示す斜視図、第４図は第１実施例の光路変更
体の展開図、第５図は第１実施例の光表示装置の分解斜
視図、第６図は第１実施例の場合の光路変更体の配置例
を示ず平面図、第７図は本発明の第２実施例の要部縦断
面図である。 １・・・遮光゛表示板、２・・・透光孔、３・・・透光
片、４・・・光路変更体、４Ｂ・・・反射面、５・・・
光ファイバ、５Ａ・・・先端拡径部。FIG. 1 is a vertical cross-sectional view of a main part of a first embodiment of the optical display device according to the present invention, FIG. 2 is a perspective view of the optical display device of the first embodiment, and FIG. 3 is a diagram of the optical display device of the first embodiment. FIG. 4 is a perspective view showing the relationship between the optical fiber and the optical path changing body; FIG. 4 is a developed view of the optical path changing body of the first embodiment; FIG. 5 is an exploded perspective view of the optical display device of the first embodiment; The figure is a plan view without showing an example of the arrangement of the optical path changing body in the case of the first embodiment, and FIG. 7 is a longitudinal cross-sectional view of a main part of the second embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Light-shielding display board, 2... Light-transmitting hole, 3... Light-transmitting piece, 4... Optical path changing body, 4B... Reflective surface, 5...
Optical fiber, 5A... tip enlarged diameter part.

Claims (1)

【特許請求の範囲】[Claims] 遮光表示板に透光孔があけられ、光ファイバから伝送さ
れた光が前記透光孔から放出されて発光表示を行う光表
示装置において、前記透光孔に対応して前記遮光表示板
の裏側に光路変更体が配設され、前記光路変更体の入射
端には前記遮光表示板に対して平行する向きになつてい
る前記光ファイバの端部が対向配設されていることを特
徴とする光表示装置。In an optical display device in which a light-transmitting hole is formed in a light-shielding display board, and light transmitted from an optical fiber is emitted from the light-transmitting hole to perform a light-emitting display, a back side of the light-shielding display board corresponding to the light-transmitting hole is provided. An optical path changing body is disposed at the optical path changing body, and an end portion of the optical fiber, which is oriented parallel to the light shielding display plate, is disposed opposite to an incident end of the optical path changing body. Optical display device.
JP16752885A 1985-07-31 1985-07-31 Optical display device Pending JPS6228702A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16752885A JPS6228702A (en) 1985-07-31 1985-07-31 Optical display device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16752885A JPS6228702A (en) 1985-07-31 1985-07-31 Optical display device

Publications (1)

Publication Number Publication Date
JPS6228702A true JPS6228702A (en) 1987-02-06

Family

ID=15851364

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16752885A Pending JPS6228702A (en) 1985-07-31 1985-07-31 Optical display device

Country Status (1)

Country Link
JP (1) JPS6228702A (en)

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