JPH10199481A - Plane type fluorescent lamp - Google Patents
Plane type fluorescent lampInfo
- Publication number
- JPH10199481A JPH10199481A JP9004581A JP458197A JPH10199481A JP H10199481 A JPH10199481 A JP H10199481A JP 9004581 A JP9004581 A JP 9004581A JP 458197 A JP458197 A JP 458197A JP H10199481 A JPH10199481 A JP H10199481A
- Authority
- JP
- Japan
- Prior art keywords
- phosphor
- box
- film
- fluorescent lamp
- liquid
- 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.)
- Granted
Links
Landscapes
- Vessels And Coating Films For Discharge Lamps (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、ビデオカメラの液
晶ビューファインダのバックライト、その他液晶ディス
プレイのバックライトに用いられる平面型蛍光灯に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flat fluorescent lamp used for a backlight of a liquid crystal viewfinder of a video camera and a backlight of a liquid crystal display.
【０００２】[0002]
【従来の技術】出願人は斯種平面型蛍光灯として、図１
及び図８に示すものを提案している(特願平７−３０９
４２６号、この発明は未公開である)。これは、上面を
矩形のフロントガラス(１)にて覆い、内部にアルゴンガ
ス等の不活性ガスを封入して放電室を構成するガラス製
の箱体(２)内に、一対の細長の電極片(４)(５)を互いに
平行に設けている。一方の電極片(４)には負電圧が印加
され、他方の電極片(５)は接地されている。両電極片
(４)(５)は、フリットガラス(20)(20)によって挟持され
て、フロントガラス(１)に接近して取り付けられる。箱
体(２)の内面及びフロントガラス(１）の裏面は、図８
に示すように、蛍光体（７)の膜により覆われている。
蛍光体(７)の膜は、ユーロピウム付活酸化イットリウム
(Ｙ2Ｏ3：Ｅu)等が一般に用いられ、当初粘性を有する
液状で塗布され、その後乾燥して形成される。2. Description of the Related Art Applicants have proposed such a flat fluorescent lamp as shown in FIG.
And Fig. 8 (Japanese Patent Application No. 7-309).
No. 426, the invention has not been disclosed). This is achieved by covering a top surface with a rectangular windshield (1) and enclosing an inert gas such as argon gas therein to form a pair of elongated electrodes in a glass box (2) constituting a discharge chamber. The pieces (4) and (5) are provided in parallel with each other. A negative voltage is applied to one electrode piece (4), and the other electrode piece (5) is grounded. Both electrode pieces
(4) and (5) are sandwiched between frit glasses (20) and (20), and are mounted close to the windshield (1). The inner surface of the box (2) and the back surface of the windshield (1) are shown in FIG.
As shown in (2), it is covered with a phosphor (7) film.
The phosphor (7) film is made of europium-activated yttrium oxide.
(Y 2 O 3 : Eu) or the like is generally used, and is formed by first applying a viscous liquid and then drying it.
【０００３】フロントガラス(１)の上面周縁部には、図
１に示すように、電子流れを許す導電体被膜(９)が形成
され、点灯始動時には、先ず電極片(４)と導電体被膜
(９)との間で放電する。電極片(４)と導電体被膜(９)間
に位置する不活性ガスの電離度が増加するとともに、電
極片(４)からの電子が導電体被膜(９)内を通過し、アー
ス接地された電極片(５)と導電体被膜(９)との間でも、
放電が始まる。このように放電が一旦誘導されると、電
極片(４)からの電子は、放電室内の不活性ガスを徐々に
イオン化させ、両電極片(４)(５)の間の直接放電が定常
状態となる。両電極片(４)(５)間の放電により、蛍光体
(７)が発光し、フロントガラス(１)の上方を照らす。
尚、導電体被膜(９)を箱体(２)の底面に設けることもで
きる。As shown in FIG. 1, a conductive film 9 for allowing an electron flow is formed on the periphery of the upper surface of the windshield 1, and at the start of lighting, first, an electrode piece 4 and a conductive film are formed.
Discharge occurs between (9). As the degree of ionization of the inert gas located between the electrode piece (4) and the conductor coating (9) increases, electrons from the electrode piece (4) pass through the conductor coating (9) and are grounded. Between the electrode piece (5) and the conductor coating (9),
Discharge starts. Once the discharge is thus induced, the electrons from the electrode piece (4) gradually ionize the inert gas in the discharge chamber, and the direct discharge between the electrode pieces (4) and (5) is in a steady state. Becomes Discharge between both electrode pieces (4) and (5) causes phosphor
(7) emits light and illuminates the upper part of the windshield (1).
Note that the conductor coating (9) may be provided on the bottom surface of the box (2).
【０００４】平面型蛍光灯が用いられる液晶機器等の小
型化に伴って、斯種平面型蛍光灯は、薄形化が要求され
ており、かかる要求に対応せんとすると、フロントガラ
ス(１)及び箱体(２)の厚みを薄くする必要がある。しか
し、一般に箱体(２)の内圧は低く、フロントガラス(１)
及び箱体(２)の底面を薄形化すると、大気圧によりフロ
ントガラス(１)及び箱体(２)が破損する虞れがある。従
って、かかる破損の虞れを防ぐために、フロントガラス
(１)及び箱体(２)の内外面に強化処理を施すことが行な
われていた。With the downsizing of liquid crystal devices and the like in which flat fluorescent lamps are used, such flat fluorescent lamps are required to be made thinner. In addition, it is necessary to reduce the thickness of the box (2). However, the internal pressure of the box (2) is generally low and the windshield (1)
If the bottom surface of the box (2) is made thin, the windshield (1) and the box (2) may be damaged by atmospheric pressure. Therefore, to prevent the possibility of such damage,
The inner and outer surfaces of (1) and the box (2) have been subjected to a strengthening treatment.
【０００５】[0005]
【発明が解決しようとする課題】斯種蛍光灯に於いて
は、蛍光体(７)の表面積を大きくし、発光量を増加させ
るものが知られている(特開昭６３−３０１４５８号参
照)。これは、管状の蛍光灯に関するものであるが、図
９に示すように、蛍光灯の内面に複数の突起(85)(85)を
連ねて設け、その上に蛍光体(７)の膜を形成し、蛍光体
(７)の膜の表面積を大きくしている。従来の平面型蛍光
灯は、図６(a)に示すように、箱体(２)の底面にて、電
極片(4)(５)の内側に、突起条(８a)(８a)を設け、電極
片(４)(５)へ蛍光体(７)が流れ込むことを防いでいる。
該突起条(８a)(８a)は、電極片(４)(５)の長手方向に平
行に延び、断面は凸部が上を向いた円弧形に設けられ
る。In this type of fluorescent lamp, there has been known a fluorescent lamp in which the surface area of the phosphor (7) is increased to increase the amount of light emission (see Japanese Patent Application Laid-Open No. 63-301458). . This relates to a tubular fluorescent lamp. As shown in FIG. 9, a plurality of protrusions (85) and (85) are provided in series on the inner surface of the fluorescent lamp, and a film of the phosphor (7) is provided thereon. Formed and phosphor
The surface area of the film (7) is increased. As shown in FIG. 6 (a), a conventional flat fluorescent lamp is provided with protrusions (8a) (8a) on the bottom surface of a box (2) inside electrode pieces (4) and (5). This prevents the phosphor (7) from flowing into the electrode pieces (4) and (5).
The protruding strips (8a) and (8a) extend in parallel with the longitudinal direction of the electrode pieces (4) and (5), and have a cross section provided in an arc shape with the convex portion facing upward.
【０００６】しかし、突起条(８a)(８a)の表面に形成さ
れる蛍光体(７)の膜は、前記の如く、当初液状で塗布さ
れて、その後乾燥して形成される。従って、図６(a)に
示すように、塗布時の表面張力により、突起条(８a)の
近傍に蛍光体(７)が多く集まり、箱体(２)の中央部では
蛍光体(７)の膜が薄くなる。この結果、該中央部分の発
光量が十分でない問題が生じる。本発明は、第１に箱体
の底面に形成される蛍光体膜の厚みを略均一にして、フ
ロントガラス面の中央部分の発光輝度を上昇させるとと
もに、フロントガラスの全面の発光を略均一にすること
を目的とする。第２に箱体の厚みを薄くしても、強化処
理の工程を必要としないコスト削減を目的とする。However, as described above, the film of the phosphor (7) formed on the surfaces of the protrusions (8a) and (8a) is formed by first applying a liquid and then drying. Therefore, as shown in FIG. 6 (a), a large amount of the phosphor (7) gathers near the protrusion (8a) due to the surface tension at the time of application, and the phosphor (7) is located in the center of the box (2). Film becomes thinner. As a result, there arises a problem that the light emission amount of the central portion is not sufficient. According to the present invention, firstly, the thickness of the phosphor film formed on the bottom surface of the box is made substantially uniform to increase the light emission luminance at the center portion of the windshield surface, and the light emission over the entire surface of the windshield is made substantially uniform. The purpose is to do. Second, even if the thickness of the box is reduced, the object is to reduce the cost without requiring a strengthening process.
【０００７】[0007]
【課題を解決する為の手段】平面型蛍光灯は、上面をフ
ロントガラス(１)にて覆った箱体(２)内に、不活性ガス
を封入するとともに、一対の放電用電極片(４)(５)を対
向配備し、フロントガラス(１)の内面及び箱体(２)の内
側底面には、塗布後に乾燥した蛍光体(７)の膜が形成さ
れている。箱体(２)の底面内側は、箱体(２)に一体に設
けられた複数の突起条(８)(８)により液状蛍光体(７)が
溜まる溜まり室(３)(３)に仕切られ、該突起条(８)(８)
間の蛍光体(７)の膜厚を略均一にする。In order to solve the problem, a flat fluorescent lamp has a box body (2) whose upper surface is covered with a windshield (1), in which an inert gas is sealed, and a pair of discharge electrode pieces (4). ) (5) are disposed facing each other, and a film of the phosphor (7) dried after application is formed on the inner surface of the windshield (1) and the inner bottom surface of the box (2). The inside of the bottom surface of the box (2) is partitioned into storage chambers (3) (3) in which the liquid phosphor (7) is stored by a plurality of projections (8) (8) provided integrally with the box (2). And the projections (8) (8)
The thickness of the phosphor (7) between them is made substantially uniform.
【０００８】[0008]
【作用及び効果】蛍光体(７)は当初粘性を有する液状で
あり、該蛍光体(７)は従来と同様に、突起条(８)(８)間
に注入される。しかし、本発明に係わる蛍光灯にあって
は、箱体(２)の底面を複数の突起条(８)(８)にて溜まり
室(３)(３)に仕切っているから、隣り合う突起条(８)
(８)の中間部に位置する蛍光体(７)も、突起条(８)との
間に作用する表面張力の影響を受ける。その結果、図６
(b)に示すように、液面の下がる量を小さくできる。即
ち、突起条(８)を数多く設け、突起条(８)(８)間の間隔
を狭くすれば、突起条(８)(８)の中間部に位置する蛍光
体(７)の膜厚が薄くなることを防ぐことができ、フロン
トガラス(１)の全面の発光を略均一化できる。また、本
発明では、図４のように、箱体(２)の底面内側に複数の
突起条(８)(８)にて形成している為、箱体(２)の底面の
強度を高めることができる。Function and Effect The phosphor (7) is initially a viscous liquid, and the phosphor (7) is injected between the projections (8) and (8) as in the prior art. However, in the fluorescent lamp according to the present invention, since the bottom surface of the box (2) is partitioned into the collecting chambers (3) and (3) by the plurality of protrusions (8) and (8), the adjacent protrusions are formed. Article (8)
The phosphor (7) located in the middle of (8) is also affected by the surface tension acting between the phosphor (7) and the projection (8). As a result, FIG.
As shown in (b), the amount by which the liquid surface drops can be reduced. That is, if a large number of protrusions (8) are provided and the distance between the protrusions (8) and (8) is reduced, the thickness of the phosphor (7) located in the middle of the protrusions (8) and (8) can be reduced. Thinning can be prevented, and light emission over the entire surface of the windshield (1) can be made substantially uniform. Further, in the present invention, as shown in FIG. 4, since the plurality of protrusions (8) and (8) are formed inside the bottom surface of the box (2), the strength of the bottom surface of the box (2) is increased. be able to.
【０００９】[0009]
【発明の実施の形態】以下、本発明の一例を図を用いて
説明する。従来と同一構成については、同一符号を用い
て説明する。蛍光灯の外観構成については、従来と同様
である。即ち、図１に示す如く、上面がフロントガラス
(１)により覆われたガラス製の箱体(２)内には、アルゴ
ンガス等の不活性ガスが封入されるとともに、一対の電
極片(４)(５)(図２参照)が互いに平行に配備されてい
る。図３は図１をＢ−Ｂ線を含む垂直面で破断し、矢視
方向に見た図である。フリットガラス(20)(20)にて、電
極片(４)(５)が箱体(２)に取り付けられ、該フロントガ
ラス(１)の裏面及び箱体(２)の底面内側は、蛍光体(７)
の膜により覆われている。フロントガラス(１)の上面に
は、導電体被膜(９)が形成されている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An example of the present invention will be described below with reference to the drawings. The same components as those of the related art will be described using the same reference numerals. The external configuration of the fluorescent lamp is the same as the conventional one. That is, as shown in FIG.
In a glass box (2) covered with (1), an inert gas such as argon gas is sealed, and a pair of electrode pieces (4) and (5) (see FIG. 2) are parallel to each other. Has been deployed. FIG. 3 is a view in which FIG. 1 is cut along a vertical plane including the line BB and viewed in the direction of the arrow. The electrode pieces (4) and (5) are attached to the box (2) with the frit glass (20) (20), and the back surface of the windshield (1) and the inside of the bottom surface of the box (2) are phosphors. (7)
Is covered by the film. A conductive film (9) is formed on the upper surface of the windshield (1).
【００１０】図４は、箱体(２)の内部底面を示す平面図
である。該底面にて、前記電極片(４)(５)の内側には、
複数の細長い突起条(８)(８)を格子状に配列した成膜部
(６)が設けられ、該突起条(８)(８)により、成膜部(６)
は溜まり室(３)(３)に仕切られる。各溜まり室(３)毎
に、厚さ数μm〜数１０μmの蛍光体(７)の膜が形成され
る。互いに対向して隣り合う突起条(８)(８)の間隔は、
縦横で異なるが、長手方向の長さＬは約１.８mmに設け
られる。各突起条(８)は、電極片(４)(５)の長手方向に
平行又は直交する方向に延び、図３に示すように、断面
円弧形で凸面を上に向けている。各突起条(８)は、箱体
(２)と一体に成形されて、高さは数１０μm〜数１００
μmであり、蛍光体(７)の膜厚よりも高い。溜まり室
(３)(３)間に、蛍光体(７)の膜を形成するには、以下の
２通りの方法がある。FIG. 4 is a plan view showing the inner bottom surface of the box (2). On the bottom surface, inside the electrode pieces (4) and (5),
A film forming section in which a plurality of elongated projections (8) (8) are arranged in a lattice pattern
(6) is provided, and the film forming section (6) is formed by the projections (8) and (8).
Is partitioned into storage chambers (3) and (3). A film of the phosphor (7) having a thickness of several μm to several tens μm is formed for each of the storage chambers (3). The interval between the protruding strips (8) and (8) adjacent to each other is
Although different in length and width, the length L in the longitudinal direction is set to about 1.8 mm. Each protruding strip (8) extends in a direction parallel or perpendicular to the longitudinal direction of the electrode pieces (4) and (5), and has a convex surface facing upward in an arc-shaped cross section as shown in FIG. Each protrusion (8) is a box
Molded integrally with (2), height is several tens μm to several hundreds
μm, which is higher than the film thickness of the phosphor (7). Pool room
(3) There are the following two methods for forming a phosphor (7) film between (3).
【００１１】１つの方法は、図４に示す成膜部(６)の中
央に、液状の蛍光体(７)を適量だけ落とす。次に、該蛍
光体(７)を成膜部(６)全体に一様に拡げ乾燥させる。こ
のとき、図４に点線で示すように、突起条(８)に切欠き
(80)を設けておけば、蛍光体(７)が拡がりやすくなる。
もう１つの方法は、図５に示すように、成膜部(６)の上
方に、各溜まり室(３)対応した孔(82a)を設けた注入器
(82)を配置し、該注入器(82)から液状の蛍光体(７)を各
溜まり室(３)毎に流出させる。この後蛍光体(７)を乾燥
させる。In one method, an appropriate amount of a liquid phosphor (7) is dropped at the center of the film forming section (6) shown in FIG. Next, the phosphor (7) is uniformly spread over the entire film forming section (6) and dried. At this time, as shown by the dotted line in FIG.
If (80) is provided, the phosphor (7) can be easily spread.
As another method, as shown in FIG. 5, an injector having holes (82a) corresponding to the respective chambers (3) provided above the film forming section (6).
A liquid phosphor (7) is discharged from the injector (82) into each of the storage chambers (3). Thereafter, the phosphor (7) is dried.
【００１２】上記何れの方法で蛍光体(７)の膜を形成し
ても、図３に示すように、乾燥前の液状の蛍光体(７)
は、互いに対向して隣り合う突起条(８)(８)間に溜ま
る。蛍光体(７)が、突起条(８)(８)間に注入されると、
突起条(８)と蛍光体(７)間に働く表面張力により突起条
(８)の根元に引き寄せられる。このとき、仮に突起条
(８)(８)の間隔が広ければ、図６(a)に示すように、突
起条(８)(８)間の中間部は、表面張力の影響を受けにく
く、蛍光体(７)の自重により、液面が下がりやすい。然
るに、本例に係わる蛍光灯にあっては、成膜部(６)を複
数の突起条(８)(８)により、溜まり室(３)(３)に区切っ
ているから、突起条(８)(８)の間隔が狭くなっている。
溜まり室(３)(３)の中間部にある蛍光体(７)も表面張力
の影響を受け、図６(b)に拡大して示すように、液面の
下がる量を小さくできる。即ち、突起条(８)を数多く設
け、突起条(８)(８)間の間隔を狭くすれば、突起条(８)
(８)間の中間部に位置する蛍光体(７)の膜厚が薄くなる
ことを防ぎ、該中間部の照度の低下を防止できる。その
結果、フロントガラス(１)の全面の発光が均一となる。When the phosphor (7) film is formed by any of the above methods, as shown in FIG. 3, the liquid phosphor (7) before drying is formed.
Accumulate between the protruding strips (8) and (8) adjacent to each other. When the phosphor (7) is injected between the protrusions (8) and (8),
Due to the surface tension acting between the protrusion (8) and the phosphor (7), the protrusion is formed.
It is drawn to the root of (8). At this time, temporarily
(8) If the distance between (8) and (8) is wide, as shown in FIG. 6 (a), the intermediate portion between the protrusions (8) and (8) is hardly affected by surface tension, and The liquid level easily drops due to its own weight. However, in the fluorescent lamp according to the present embodiment, the film forming section (6) is divided into the storage chambers (3) and (3) by the plurality of protrusions (8) and (8). (8) The interval of (8) is narrow.
The phosphor (7) in the middle part of the storage chambers (3) (3) is also affected by the surface tension, and as shown in an enlarged view in FIG. That is, if a large number of protrusions (8) are provided and the interval between the protrusions (8) and (8) is reduced, the protrusions (8)
It is possible to prevent the thickness of the phosphor (7) located at the intermediate portion between (8) from becoming thin, and to prevent the illuminance from decreasing at the intermediate portion. As a result, light emission over the entire surface of the windshield (1) becomes uniform.
【００１３】出願人は、横長さが１８mmの平面型蛍光灯
に於いて、突起条(８)(８)間の間隔を前記の如く約１.
８mm、高さ約２００μmとして、蛍光体(７)を塗布した
ものを試作し、点灯させた。その結果、突起条(８)(８)
の中間部の照度が落ちる減少は見られなかった。また、
箱体(２)の底面に、突起条(８)(８)を複数設けることに
より、箱体(２）の底面の強度が上がる。出願人は、箱
体（２)の横長さが約１８mm、厚さ約２.５mm及び箱体
(２)の横長さが約５０mm、圧さ約３.０mmの平面型蛍光
灯に於いて、高さ約２００μm程度の突起条(８)(８)を
縦横方向に夫々数本設けることにより、箱体(２)が２.
５kg/cm2の外圧に耐えられることを確認している。The applicant has set that the distance between the protrusions (8) and (8) in the flat fluorescent lamp having a width of 18 mm is about 1.
A prototype having a thickness of 8 mm and a height of about 200 μm and coated with the phosphor (7) was fabricated and lit. As a result, protrusions (8) (8)
There was no decrease in the illuminance of the middle part of the camera. Also,
By providing a plurality of projections (8) and (8) on the bottom surface of the box (2), the strength of the bottom surface of the box (2) is increased. The applicant has stated that the box (2) has a width of about 18 mm, a thickness of about 2.5 mm and a box (2).
In a flat fluorescent lamp having a horizontal length of about 50 mm and a pressure of about 3.0 mm in (2), by providing several protrusions (8) and (8) about 200 μm in height in the vertical and horizontal directions, respectively. Box (2) is 2.
It has been confirmed that it can withstand an external pressure of 5 kg / cm 2 .
【００１４】尚、上記例では、図４に示すように、両電
極片(４)(５)の内側に成膜部(６)を設けるとしたが、電
極片(４)(５)が成膜部(６)の上方に位置してもよい。但
し、電極片(４)(５)の下端が、蛍光体(７)の膜に接して
いると、該接触箇所に於いて、蛍光体(７)の膜が剥がれ
ることがあり、この場合、箱体(２)内に蛍光体(７)の剥
がれ滓が残り、フロントガラス(１)に付着することがあ
る。従って、電極片(４)(５)の下端が、蛍光体(７)の膜
に接しないことが必要である。In the above example, as shown in FIG. 4, the film forming section (6) is provided inside the two electrode pieces (4) and (5), but the electrode pieces (4) and (5) are formed. It may be located above the membrane part (6). However, if the lower ends of the electrode pieces (4) and (5) are in contact with the film of the phosphor (7), the film of the phosphor (7) may be peeled off at the contact portion. Peeling residue of the phosphor (7) may remain in the box (2) and adhere to the windshield (1). Therefore, it is necessary that the lower ends of the electrode pieces (4) and (5) do not contact the film of the phosphor (7).
【００１５】また、上記例では、成膜部(６)は、突起条
(８)を格子状に配列して構成しているとしたが、例えば
図７に示すように、成膜部(６)の対角線と平行に突起条
(８)を設けてもよい。更に、図示はしないが、突起条
(８)の断面形状は円弧形でなくとも、多角形状でもよ
い。上記例では、安価で成形しやすいことに鑑みて、箱
体(２)をガラスで形成しているが、箱体(２)は絶縁体で
あればよく、プラスチックやセラミックにより形成して
もよい。In the above example, the film forming section (6) is provided with
Although (8) is arranged in a grid pattern, for example, as shown in FIG.
(8) may be provided. Further, although not shown, the protrusion
The cross-sectional shape of (8) is not limited to the arc shape but may be a polygonal shape. In the above example, the box body (2) is formed of glass in consideration of being inexpensive and easy to mold, but the box body (2) may be an insulator, and may be formed of plastic or ceramic. .
【００１６】上記実施例の説明は、本発明を説明するた
めのものであって、特許請求の範囲に記載の発明を限定
し、或は範囲を減縮する様に解すべきではない。又、本
発明の各部構成は上記実施例に限らず、特許請求の範囲
に記載の技術的範囲内で種々の変形が可能であることは
勿論である。The description of the above embodiments is for the purpose of illustrating the present invention and should not be construed as limiting the invention described in the appended claims or reducing the scope thereof. Further, the configuration of each part of the present invention is not limited to the above-described embodiment, and it is needless to say that various modifications can be made within the technical scope described in the claims.
【図１】平面型蛍光灯の斜視図である。FIG. 1 is a perspective view of a flat fluorescent lamp.
【図２】電極片の斜視図である。FIG. 2 is a perspective view of an electrode piece.
【図３】図１をＢ−Ｂ線を含む垂直面で破断し、矢視方
向に見た断面図である。FIG. 3 is a cross-sectional view of FIG. 1 cut along a vertical plane including line BB and viewed in the direction of arrows.
【図４】箱体の底面を示す平面図である。FIG. 4 is a plan view showing a bottom surface of the box.
【図５】蛍光体の塗布工程を一部破断して示す正面図で
ある。FIG. 5 is a partially cutaway front view showing a phosphor application step.
【図６】(a)は突起条間が離れた従来の箱体の断面正面
図、(b)は本例に係わる箱体の断面正面図である。FIG. 6A is a cross-sectional front view of a conventional box body in which projections are separated, and FIG. 6B is a cross-sectional front view of the box body according to the present example.
【図７】成膜部の応用例の平面図である。FIG. 7 is a plan view of an application example of a film forming unit.
【図８】従来の平面型蛍光灯の側面断面図である。FIG. 8 is a side sectional view of a conventional flat fluorescent lamp.
【図９】従来の管状蛍光灯の断面図である。FIG. 9 is a sectional view of a conventional tubular fluorescent lamp.
(１) フロントガラス (２) 箱体 (４) 電極片 (５) 電極片 (７) 蛍光体 (８) 突起条 (９) 導電体被膜 (1) Windshield (2) Box (4) Electrode piece (5) Electrode piece (7) Phosphor (8) Protrusion (9) Conductor coating
───────────────────────────────────────────────────── フロントページの続き (72)発明者 平添 洋一 鹿児島県出水郡高尾野町大久保3816番地23 ヤマト電子株式会社内 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Yoichi Hirasoe 3816-23 Okubo, Takaono-cho, Izumi-gun, Kagoshima Prefecture Yamato Electronics Co., Ltd.
Claims (3)
体(２)内に、不活性ガスを封入するとともに、一対の放
電用電極片(４)(５)を対向配備し、フロントガラス(１)
の内面及び箱体(２)の底面内側には、塗布後に乾燥した
蛍光体(７)の膜が形成されている平面型蛍光灯に於い
て、 箱体(２)の底面内側は、箱体(２)に一体に設けられた複
数の突起条(８)(８)により液状の蛍光体(７)が溜まる溜
まり室(３)(３)に仕切られ、該突起条(８)(８)間の蛍光
体(７)の膜厚を略均一にすることを特徴とする平面型蛍
光灯。An inert gas is sealed in a box (2) whose upper surface is covered with a windshield (1), and a pair of discharge electrode pieces (4) and (5) are provided to face each other. Glass (1)
In a flat fluorescent lamp in which a film of the phosphor (7) dried after application is formed on the inner surface of the box (2) and the inside of the bottom of the box (2), the inside of the bottom of the box (2) is a box A plurality of projections (8) (8) provided integrally with (2) are partitioned into a storage chamber (3) (3) in which a liquid phosphor (7) is stored, and the projections (8) (8) A flat type fluorescent lamp characterized in that the thickness of the phosphor (7) between them is made substantially uniform.
の膜は、電極片(４)(５)に接触しない厚みに形成された
請求項１に記載の平面型蛍光灯。2. A phosphor (7) between adjacent projections (8) (8).
2. The flat fluorescent lamp according to claim 1, wherein the film is formed so as not to contact the electrode pieces (4) and (5).
１に記載の平面型蛍光灯。3. The flat fluorescent lamp according to claim 1, wherein a notch (80) is provided in the protrusion (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP00458197A JP3415734B2 (en) | 1997-01-14 | 1997-01-14 | Flat fluorescent lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP00458197A JP3415734B2 (en) | 1997-01-14 | 1997-01-14 | Flat fluorescent lamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH10199481A true JPH10199481A (en) | 1998-07-31 |
| JP3415734B2 JP3415734B2 (en) | 2003-06-09 |
Family
ID=11588014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP00458197A Expired - Fee Related JP3415734B2 (en) | 1997-01-14 | 1997-01-14 | Flat fluorescent lamp |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3415734B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100545149B1 (en) * | 2003-09-01 | 2006-01-24 | 이계승 | Flat type fluorescent lamp |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0724475U (en) * | 1993-10-15 | 1995-05-09 | 三菱プレシジョン株式会社 | Seismic device |
| JPH07134541A (en) * | 1993-11-12 | 1995-05-23 | Kayaba Ind Co Ltd | Vibration generator |
-
1997
- 1997-01-14 JP JP00458197A patent/JP3415734B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0724475U (en) * | 1993-10-15 | 1995-05-09 | 三菱プレシジョン株式会社 | Seismic device |
| JPH07134541A (en) * | 1993-11-12 | 1995-05-23 | Kayaba Ind Co Ltd | Vibration generator |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100545149B1 (en) * | 2003-09-01 | 2006-01-24 | 이계승 | Flat type fluorescent lamp |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3415734B2 (en) | 2003-06-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6531820B1 (en) | Plasma display device including grooves concentrating an electric field | |
| JPH04229530A (en) | Plasma display element and manufacture thereof | |
| US6479934B2 (en) | AC-driven surface discharge plasma display panel having transparent electrodes with minute openings | |
| JPH0475232A (en) | Plasma display panel and method for driving the same | |
| JP3415734B2 (en) | Flat fluorescent lamp | |
| KR100443574B1 (en) | The AC driven plasma device for the flat lamps and the fabrication method | |
| KR100588710B1 (en) | Internally channeled glass envelope with molded edge for affixing attachments | |
| KR100437954B1 (en) | Flat type fluorescent lamp and lamp assembly applying the same | |
| JPH08227695A (en) | Surface light source device | |
| JP3116387B2 (en) | Plasma display panel | |
| JP2981443B2 (en) | Gas discharge display panel | |
| JPH0822804A (en) | Low-pressure discharge lamp and its lighting device | |
| KR100307445B1 (en) | Surface light source device | |
| JP2681445B2 (en) | Gas discharge display tube | |
| JP2962858B2 (en) | Gas discharge display | |
| JPH04274134A (en) | Manufacture of plasma display panel | |
| JP2727157B2 (en) | Gas discharge display panel | |
| JP2783007B2 (en) | Plasma display panel | |
| JPH08273604A (en) | Plane fluorescent lamp | |
| JP2720288B2 (en) | Gas discharge display tube | |
| JP3278390B2 (en) | Flat fluorescent lamp | |
| KR100365351B1 (en) | AC Driven Plasma Display Panel | |
| JP2681438B2 (en) | Gas discharge display panel and method of manufacturing the same | |
| JP2002260592A (en) | Mercury-free fluorescent lamp | |
| JP2981444B2 (en) | Gas discharge display panel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20030225 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| LAPS | Cancellation because of no payment of annual fees |