JPS60227351A - Electron luminous tube device - Google Patents

Abstract

PURPOSE:To enable the optical color of a luminous tube to be freely varied by preparing a phosphor from a blue phosphor and an yellow phosphor with different excitation energies. CONSTITUTION:A thermion-emissive cathode 3 is installed in an inner area corresponding to the rivet of a glass tube 1 which has a fan-like cross section and forms a vacuum space 2. An anode 4 consisting of a transparent conductive film is formed on the inner surface of the spherical section of the glass tube 1. And, a phosphor 5 is applied to the above transparent conductive film. The phosphor 5 consists of a mixture of blue phoshor and an yellow phosphor having different excitation energies. The ratio of the yellow phosphor to the blue phosphor is adjusted so that the optical color of the phosphor 5 becomes white for the rated electric potential applied. By the means mentioned above, the optical color (color temperature) can be freely changed from tones of the cold color system to those of the warm color system.

Description

【発明の詳細な説明】 （技術分野） 本発明は、１本の発光管で光色を変化させることができ
る電子発光管装置に関する。DETAILED DESCRIPTION OF THE INVENTION (Technical Field) The present invention relates to an electronic arc tube device that can change the color of light with a single arc tube.

（背景技術） 従来、照明用あるいはディスプレイ用光源として、白熱
電球、螢光灯、水銀灯など多種の光源が実用化され、そ
れぞれの特徴を生かして各方面で利用されている。(Background Art) Conventionally, various light sources such as incandescent light bulbs, fluorescent lamps, and mercury lamps have been put into practical use as light sources for illumination or displays, and are used in various fields by taking advantage of their respective characteristics.

ところで、一般にこれらの光源は、その発光色が固有の
ものであり、異なった色調を得たいような場合には、光
源を取り替えるか、あるいは複数種類の光源を併設し、
状況に応じて選択的に点灯する必要があり、１本の管球
で色調を自在に制御することができる方式は、未だ、実
現されていない。By the way, these light sources generally emit a unique color, so if you want to obtain a different color tone, you can either replace the light source or install multiple types of light sources together.
It is necessary to turn on the light selectively depending on the situation, and a method that allows the color tone to be freely controlled using a single bulb has not yet been realized.

（発明の目的） 本発明は、上記の点に鑑みてなされたもので、その目的
とするところは、１本の発光管で光色を自在に変化させ
ることができる電子発光管装置を提供するにある。(Object of the Invention) The present invention has been made in view of the above points, and its purpose is to provide an electronic arc tube device that can freely change the color of light with a single arc tube. It is in.

（発明の開示） 以下、本発明を説明する。第１図は本発明の基本構成を
示す概念図で、図中１は真空空間２を形成する断面形状
が略扇形のガラス管で、その要に相当する管内部には熱
電子放出性の陰極３が配設され、球状面部の内面には透
明導電膜より成る陽極４が配設されている。そして、陽
極４を形成する透明導電膜上には後述の螢光体５が塗布
されている。(Disclosure of the Invention) The present invention will be explained below. FIG. 1 is a conceptual diagram showing the basic configuration of the present invention. In the figure, 1 is a glass tube with a substantially fan-shaped cross section that forms a vacuum space 2. Inside the tube, which corresponds to the key point, there is a thermion-emitting cathode. 3 is disposed, and an anode 4 made of a transparent conductive film is disposed on the inner surface of the spherical surface portion. A phosphor 5, which will be described later, is coated on the transparent conductive film forming the anode 4.

上記螢光体５は、第２図（ａ）、　（ｂ）に示す如き励
起分布および発光分布を有する低エネルギー電子線励起
タイプの２種類の螢光体Ｆｌ、Ｆ２を予め混合したもの
であり、螢光体Ｆ１は青色系（例えば、定格印加電圧で
第３図に示す色度図のＢ点の色度（青色））で、螢光体
Ｆ２は黄色系（例えば、定格印加電圧で第３図に示す色
度図のＹ点の色度（黄色））であり、その混合比は定格
印加電圧で、例えば第３図に示す色度図のＡ点に光色（
色温度５０００°にの白色）がくるように調整されてい
る。The above-mentioned phosphor 5 is a mixture of two types of phosphors Fl and F2 of the low-energy electron beam excitation type having excitation distributions and emission distributions as shown in FIGS. 2(a) and 2(b). , the phosphor F1 has a blue color (for example, the chromaticity (blue) at point B in the chromaticity diagram shown in FIG. This is the chromaticity (yellow) at point Y in the chromaticity diagram shown in Figure 3, and the mixing ratio is the chromaticity (yellow) at point A in the chromaticity diagram shown in Figure 3 at the rated applied voltage.
It is adjusted so that the color temperature is 5000° (white).

而して、陰極３と陽極４間の印加電圧を定格印加電圧よ
り上げて行くと、放出された熱電子ｅの加速が強まり、
より高エネルギーで螢光体５に衝突する。すると、より
高エネルギー励起感度の高い螢光体Ｆ１の方が強く励起
、発光することになり、全体として、より色温度が高い
寒色系の色調（例えば青白色）となる。逆に、定格印加
電圧より電圧を下げて行けば、螢光体５に当たる電子エ
ネルギーが低下し、今度は螢光体Ｆ２の方の励起度合が
高まり、全体として色温度の低い暖色系の色調（電球色
）となる、従って、印加電圧を変えるだけの簡単な制御
で、寒色系の色調から暖色系の色調へと自由に光色（色
温度）を変化させることができる。Therefore, when the voltage applied between the cathode 3 and the anode 4 is increased from the rated applied voltage, the acceleration of the emitted thermionic electrons e becomes stronger.
It collides with the phosphor 5 with higher energy. Then, the phosphor F1 having higher high-energy excitation sensitivity will be more strongly excited and emit light, resulting in a cooler color tone (for example, blue-white) with a higher color temperature as a whole. Conversely, if the voltage applied is lower than the rated voltage, the electron energy hitting the phosphor 5 decreases, and the degree of excitation of the phosphor F2 increases, resulting in a warm color tone with a lower overall color temperature ( Therefore, the light color (color temperature) can be freely changed from a cool color tone to a warm color tone by simply changing the applied voltage.

なお、第１図においてＲは抵抗、ＤＣは印加電圧であり
、該印加電圧ＤＣを交流よりの全波整流電圧とすれば、
より簡便な構成と制御ですむ。In addition, in FIG. 1, R is a resistance and DC is an applied voltage. If the applied voltage DC is a full-wave rectified voltage from AC,
Simpler configuration and control are required.

（発明の効果） 本発明は上記のように、真空空間２を形成するガラス管
１内に配設した熱電子放出性の陰極３と、ガラス管１の
発光面部の内面に配設した透明導電膜より成る陽極４と
の間に電圧を印加し、上記陰極３より放出された熱電子
ｅを真空空間２で加速し、上記透明導電膜上に塗布され
た低エネルギー電子線励起タイプの螢光体５に衝突せし
め、該螢光体５を励起、発光せしめて成る電子発光管装
置であって、上記螢光体５を、励起エネルギーの異なる
青色系の螢光体と黄色系の螢光体との混合螢光体で、か
つ、その混合比が定格印加電圧で光色が白色になるよう
に調整された混合螢光体で構成すると共に、陰極３と陽
極４間の印加電圧を可変せしめたことを特徴とするので
、印加電圧を変えるだけの簡単な制御で、寒色系の色調
から暖色系の色調へと自由に光色（色温度）を変化させ
ることができる電子発光管装置を提供できた。(Effects of the Invention) As described above, the present invention includes a thermionic emitting cathode 3 disposed within the glass tube 1 forming the vacuum space 2, and a transparent conductive cathode disposed on the inner surface of the light emitting surface of the glass tube 1. A voltage is applied between the anode 4 made of a film, the thermionic electrons e emitted from the cathode 3 are accelerated in the vacuum space 2, and low-energy electron beam excitation type fluorescence coated on the transparent conductive film is produced. This is an electron luminous tube device in which the phosphor 5 is made to collide with a body 5 to excite the phosphor 5 and cause it to emit light. and the mixture ratio is adjusted so that the color of the light becomes white at the rated applied voltage, and the voltage applied between the cathode 3 and the anode 4 is variable. Therefore, we provide an electronic luminous tube device that can freely change the light color (color temperature) from a cool color tone to a warm color tone with simple control by simply changing the applied voltage. did it.

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

第１図は本発明の基本構成を示す概念図、第２図は螢光
体の特性図で、同図（ａｌは励起分布、同図（ｂｌは発
光分布を示し、第３図は色度図である。 １・・・ガラス管、２・・・真空空間、３・・・陰極、
４・・・陽極、５・・・螢光体。 特許出願人 松下電工株式会社 代理人　弁理士　竹元敏九 （ほか２名） 第１図 手続？市正書（自発補正） 昭和５９年　７月１２日 昭和５９年　特許願　第０８５３０４号２、発明の名称 電子発光管装置 ３、補正をする者 事件との関係　特許出願人 住　所　大阪府門真市大字門真１０４８番地名　称（５
８３）松下電工株式会社 代表者　小　林　郁 ４、代理人 住　所　大阪府門真市大字門真１０４８番地明細書 ６、補正の内容 （補正の内容） １）明細書の特許請求の範囲の欄を下記のように補正す
る。 （１）真空空間を形成するガラス管内に配設した熱電子
放出性の陰極と、ガラス管の発光面部の内面または内面
近傍に配設した陽極との間に電圧を印加し、上記陰極よ
り放出された熱電子を真空空間で加速し、上記発光面部
に塗布された低エネルギー電子線励起タイプの螢光体に
衝突せしめ、該螢光体を励起、発光せしめて成る電子発
光管装置であって、上記螢光体を、励起エネルギーの異
なる青色系の螢光体と黄色系の螢光体との混合螢光体で
、かつ、その混合比が定格印加電圧で光色が白色になる
ように調整された混合螢光体で構成すると共に、陰極と
陽極間の印加電圧を可変せしめたことを特徴とする電子
発光管装置。 （２）印加電圧が交流よりの全波整流電圧である特許請
求の範囲第１項記載の電子発光管装置。 ２）明細書の第３頁第９行目の「いる。」の後に「なお
、陽極４の構成は、メソシュ状の導電体をガラス管１の
発光面部の内面に沿って配設したものでもよい。」を挿
入する。 ３）明細書の第５頁第１行目〜第４行目の「内面に配設
した・・・・・・・・・透明導電膜上に」を「内面また
は内面近傍に配設した陽極４との間に電圧を印加し、上
記陰極３より放出された熱電子ｅを真空空間２で加速し
、上記発光面部に」と補正する。 以上Fig. 1 is a conceptual diagram showing the basic configuration of the present invention, Fig. 2 is a characteristic diagram of the phosphor. It is a diagram. 1... Glass tube, 2... Vacuum space, 3... Cathode,
4... Anode, 5... Fluorescent material. Patent applicant Matsushita Electric Works Co., Ltd. Agent Patent attorney Toshikuro Takemoto (and 2 others) Diagram 1 Procedure? City official document (voluntary amendment) July 12, 1980 Patent application No. 085304 2, title of invention Electron luminescent tube device 3, relationship to the case of the person making the amendment Patent applicant address Kadoma City, Osaka Prefecture Oaza Kadoma 1048 address name (5
83) Matsushita Electric Works Co., Ltd. Representative: Iku Kobayashi 4, Agent address: 1048 Kadoma, Kadoma City, Osaka Prefecture Specification 6, Contents of amendment (Contents of amendment) 1) The claims column of the specification is as follows: Correct as shown below. (1) A voltage is applied between a thermionic-emitting cathode disposed in a glass tube forming a vacuum space and an anode disposed on or near the inner surface of the light-emitting surface of the glass tube, and the electrons are emitted from the cathode. An electron luminous tube device comprising: accelerating the generated thermoelectrons in a vacuum space and colliding with a low-energy electron beam excitation type phosphor coated on the light emitting surface to excite the phosphor and cause it to emit light. , the above phosphor is a mixed phosphor of a blue phosphor and a yellow phosphor having different excitation energies, and the mixing ratio is such that the light color becomes white at the rated applied voltage. An electron luminous tube device comprising a controlled mixed phosphor and having a variable voltage applied between a cathode and an anode. (2) The electron arc tube device according to claim 1, wherein the applied voltage is a full-wave rectified voltage from alternating current. 2) In the 9th line of page 3 of the specification, after "I'm there." it says, "The structure of the anode 4 may also be one in which a mesoche-like conductor is arranged along the inner surface of the light-emitting surface of the glass tube 1. Insert "Good." 3) On page 5, lines 1 to 4 of the specification, "disposed on the inner surface...on the transparent conductive film" is replaced with "an anode disposed on the inner surface or near the inner surface." 4, the thermionic electrons e emitted from the cathode 3 are accelerated in the vacuum space 2, and are corrected to the light emitting surface section. that's all

Claims (2)

【特許請求の範囲】[Claims] （１）真空空間を形成するガラス管内に配設した熱電子
放出性の陰極と、ガラス管の発光面部の内面に配設した
透明導電膜より成る陽極との間に電圧を印加し、上記陰
極より放出された熱電子を真空空間で加速し、上記透明
導電膜上に塗布された低エネルギー電子線励起タイプの
螢光体に衝突せしめ、該螢光体を励起、発光せしめて成
る電子発光管装置であって、上記螢光体を、励起エネル
ギーの異なる青色系の螢光体と黄色系の螢光体との混合
螢光体で、かつ、その混合比が定格印加電圧で光色が白
色になるように調整された混合螢光体で構成すると共に
、陰極と陽極間の印加電圧を可変せしめたことを特徴と
する電子発光管装置。(1) A voltage is applied between a thermionic-emitting cathode disposed in a glass tube forming a vacuum space and an anode made of a transparent conductive film disposed on the inner surface of the light-emitting surface of the glass tube, and the cathode Thermionic electrons emitted from the phosphor are accelerated in a vacuum space and collided with a low-energy electron beam excitation type phosphor coated on the transparent conductive film to excite the phosphor and cause it to emit light. The apparatus is characterized in that the phosphor is a mixed phosphor of a blue phosphor and a yellow phosphor having different excitation energies, and the mixture ratio is such that the light color is white at a rated applied voltage. What is claimed is: 1. An electron luminous tube device comprising a mixed phosphor that is adjusted to have the following characteristics, and a voltage applied between a cathode and an anode is variable. （２）印加電圧が交流よりの全波整流電圧である特許請
求の範囲第１項記載の電子発光管装置。(2) The electron arc tube device according to claim 1, wherein the applied voltage is a full-wave rectified voltage from alternating current.