JPH0245896Y2 - - Google Patents
Info
- Publication number
- JPH0245896Y2 JPH0245896Y2 JP1982159945U JP15994582U JPH0245896Y2 JP H0245896 Y2 JPH0245896 Y2 JP H0245896Y2 JP 1982159945 U JP1982159945 U JP 1982159945U JP 15994582 U JP15994582 U JP 15994582U JP H0245896 Y2 JPH0245896 Y2 JP H0245896Y2
- Authority
- JP
- Japan
- Prior art keywords
- display tube
- display
- glass
- reflected light
- segment
- 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
Links
Landscapes
- Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
Description
【考案の詳細な説明】
本考案は蛍光表示管等の発光表示がそのアイポ
イント即ち視読位置により発光部と反射光とが二
重に重なつて見えるのを防止するための防止構造
に関するものである。[Detailed description of the invention] The present invention relates to a prevention structure for preventing the light emitting part and reflected light from appearing doubly overlapped due to the eye point, that is, the visual reading position, of a light emitting display such as a fluorescent display tube. It is.
従来に於いては第１図乃至第２図に示す如く蛍
光表示管１の発光セグメント２と反射光による像
３とが二重に重なつて見えるため視認し難いとい
う欠点があつた。 Conventionally, as shown in FIGS. 1 and 2, the light emitting segment 2 of the fluorescent display tube 1 and the image 3 formed by the reflected light appear to overlap each other, making them difficult to visually recognize.
更に詳しく述べると第２図に示す如く表示管表
ガラス４の内側に自発光型の表示セグメント５を
配設し、表示管表ガラス４の上方に平行にカバー
ガラス６を配設した場合、一次反射光像７及び二
次反射光像８が反射面９及び１０によつて形成さ
れ、アイポイント１１の位置により表示セグメン
ト５部と二次反射光像８とが略同じサイズで二重
にだぶつて見える欠点がある。 More specifically, when a self-luminous display segment 5 is arranged inside the display tube front glass 4 as shown in FIG. A reflected light image 7 and a secondary reflected light image 8 are formed by the reflecting surfaces 9 and 10, and depending on the position of the eye point 11, the display segment 5 and the secondary reflected light image 8 are approximately the same size and are doubled. There are flaws that can be seen.
本考案はこれらの点に鑑みてなされたもので以
下に図示（第３図乃至第５図）の実施例に基きそ
の内容について説明する。 The present invention has been developed in view of these points, and its contents will be explained below based on the embodiments shown in the drawings (FIGS. 3 to 5).
２０は蛍光表示管本体Ｐの一部を構成する処の
表示管表ガラスでその内側に自発光型の表示セグ
メント２１を配置してある。 Reference numeral 20 denotes a display tube surface glass that constitutes a part of the fluorescent display tube main body P, and a self-luminous display segment 21 is arranged inside the display tube surface glass.
２２はカバーガラスで窓孔２２Ｂを有する枠体
２２Ａに取付けて前記した表示管表ガラス２０の
上方に配置してあり、該カバーガラス２２の内側
を凹面２３に形成してある。 A cover glass 22 is attached to a frame 22A having a window hole 22B and placed above the display tube front glass 20, and the inside of the cover glass 22 is formed into a concave surface 23.
要するに、一次反射光像２４の影響を少なく
し、表示セグメント２１部と二次反射光像２５と
のコントラスト比を大きくし視認位置２６より見
た場合に二重像を防止できればよいことである。 In short, it is sufficient to reduce the influence of the primary reflected light image 24, increase the contrast ratio between the display segment 21 and the secondary reflected light image 25, and prevent double images when viewed from the viewing position 26.
２７は前記表示セグメント２１の後背に位置付
けした凹面２３の焦点位置、２８は反射面であ
る。 27 is the focal point of the concave surface 23 located behind the display segment 21, and 28 is a reflective surface.
前記したカバーガラス２２は二重像の防止を第
一の目的とし、第二には防塵を目的とするもので
ある。又、ガラスに代えてプラスチツクを採用し
ても良いことは勿論である。 The first purpose of the cover glass 22 described above is to prevent double images, and the second purpose is to prevent dust. Furthermore, it goes without saying that plastic may be used instead of glass.
本考案の使用例として自動車に於けるダツシユ
ボード１００に取付けるデジタル時計１０１を挙
げることができる（第５図参照）
而して、表示セグメント２１より発した光像は
カバーガラス２２を透過して視認位置２６に到達
すると共に一次反射光像２４は二次反射光像２５
によりその影響は減少され表示セグメント２１部
と二次反射光像２５とのコントラスト比を視認位
置２６より見た場合に大きくなり二重像を防止で
きることとなる。而して、本考案は叙上の如き構
成及び作用を有するもので、特に如何なる視角範
囲に於いても自発光型の発光表示が二重にだぶつ
て見えるのを防止することが出来視認性を向上す
ることが出来ると共に、カバーガラスの凹面形成
によつて表示管表ガラス面外側とカバーガラス面
内側とが接触しないため、装置全体の厚みを極力
小さくすることが出来、防塵にもなる等の効果が
ある。 An example of the use of the present invention is a digital clock 101 attached to a dash board 100 in an automobile (see Fig. 5).The light image emitted from the display segment 21 is transmitted through the cover glass 22 and placed at a visible position. 26, the primary reflected light image 24 becomes the secondary reflected light image 25.
This reduces the influence and increases the contrast ratio between the display segment 21 and the secondary reflected light image 25 when viewed from the viewing position 26, making it possible to prevent double images. Therefore, the present invention has the above-mentioned configuration and function, and is particularly capable of preventing a self-luminous light-emitting display from appearing double in any viewing angle range, thereby improving visibility. In addition, the concave surface of the cover glass prevents contact between the outer surface of the display tube surface glass and the inner surface of the cover glass, making it possible to reduce the overall thickness of the device as much as possible, making it dust-proof, etc. There is an effect.
第１図乃至第２図は従来技術の説明図、第３図
は本考案の要部の拡大図、第４図は本考案装置の
分解斜視図である。第５図は本考案装置の使用例
を示す斜視図である。
２０……表示管表ガラス、２１……表示セグメ
ント、２２……ガバーガラス、２３……凹面、Ｐ
……蛍光表示管本体。
FIGS. 1 and 2 are explanatory diagrams of the prior art, FIG. 3 is an enlarged view of the main parts of the present invention, and FIG. 4 is an exploded perspective view of the apparatus of the present invention. FIG. 5 is a perspective view showing an example of use of the device of the present invention. 20... Display tube front glass, 21... Display segment, 22... Cover glass, 23... Concave surface, P
...The main body of the fluorescent display tube.
Claims (1)
ラス２０の内側に自発光型の表示セグメント２１
を配設すると共に、表示セグメント２１の後背に
焦点位置２７を有する如く内側に凹面２３を形成
したカバーガラス２２を前記表示管表ガラス２０
の上方に離反配置して成る蛍光表示管装置。 A self-luminous display segment 21 is provided inside the display tube front glass 20 that constitutes a part of the fluorescent display tube main body P.
A cover glass 22 having a concave surface 23 formed on the inside so as to have a focal point 27 at the rear of the display segment 21 is attached to the display tube front glass 20.
A fluorescent display tube device which is arranged separately above.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15994582U JPS5963958U (en) | 1982-10-21 | 1982-10-21 | Fluorescent display tube device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15994582U JPS5963958U (en) | 1982-10-21 | 1982-10-21 | Fluorescent display tube device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5963958U JPS5963958U (en) | 1984-04-27 |
| JPH0245896Y2 true JPH0245896Y2 (en) | 1990-12-04 |
Family
ID=30351940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15994582U Granted JPS5963958U (en) | 1982-10-21 | 1982-10-21 | Fluorescent display tube device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5963958U (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5526887U (en) * | 1978-08-08 | 1980-02-21 | ||
| JPS5776587A (en) * | 1980-10-31 | 1982-05-13 | Nissan Motor | Display structure for vehicle unit |
-
1982
- 1982-10-21 JP JP15994582U patent/JPS5963958U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5963958U (en) | 1984-04-27 |
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