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KR890005195B1 - A fluorescent lamp - Google Patents

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Publication number
KR890005195B1
KR890005195B1 KR1019860005364A KR860005364A KR890005195B1 KR 890005195 B1 KR890005195 B1 KR 890005195B1 KR 1019860005364 A KR1019860005364 A KR 1019860005364A KR 860005364 A KR860005364 A KR 860005364A KR 890005195 B1 KR890005195 B1 KR 890005195B1
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South Korea
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fluorescent lamp
auxiliary electrode
glass valve
hours
electrode
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KR870001642A (en
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도시하루 야기
마사미 다까기
마사오 가와지리
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가부시끼가이샤 도시바
와다리 스기이찌로오
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00Gas-discharge or vapour-discharge lamps
    • H01J61/02Details
    • H01J61/12Selection of substances for gas fillings; Specified operating pressure or temperature

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  • Discharge Lamp (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Discharge Lamps And Accessories Thereof (AREA)

Abstract

내용 없음.No content.

Description

형광램프Fluorescent lamp

제1도는 형광램프의 보조전극이 있는 방전전극의 한예의 일부를 잘라낸 정면도.1 is a front view of a part of an example of a discharge electrode having an auxiliary electrode of a fluorescent lamp.

제2도는 형광램프에 봉해지는 아르곤 압

Figure kpo00001
을 변화시킨 형광램프의 점등시간과 광속유지율을 나타낸 특성 곡선도.Figure 2 shows the argon pressure sealed in fluorescent lamps
Figure kpo00001
Characteristic curve showing the lighting time and luminous flux maintenance rate of fluorescent lamp

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

1 : 방전전극 3 : 리이드(lead)선1: discharge electrode 3: lead wire

4 : 텅스텐 코일 필라멘트 6 : 막대형상의 보조전극4 tungsten coil filament 6 rod-shaped auxiliary electrode

본 발명은 불규칙하게 발생하는 명멸을 방지하는 보조전극이 있는 형광램프에 있어서 광속유지 특성을 향상시킨 형광램프의 구성을 개량한 것에 관한 것이다.The present invention relates to an improvement in the configuration of a fluorescent lamp having improved luminous flux holding characteristics in a fluorescent lamp having an auxiliary electrode which prevents irregularly occurring flickering.

형광램프를 교류 점등하면 방사광의 변동, 즉 깜박거리는 현상인 명멸을 눈으로 느끼는 일이 있다.When the fluorescent lamps are turned on in alternating light, they may notice fluctuations in radiated light, that is, flicker, a flickering phenomenon.

이 명멸은 규칙적 명멸과 불규칙적 명멸이 있는데, 규칙적 명멸은 교류전원의 주파수에 의존하여 형광램프의 유리밸브 단부에 발생하여 형광램프의 사용자에게 그다지 불쾌감을 주지 않지만, 불규칙적 명멸은 전술한 주파수와 관계없이 발생하는데 이것은 형광램프내에서 양극진동이 불규칙하게 발생 소멸을 반복할때에 발생하고, 형광램프의 점등시간이 1,000시간 정도 이상이 되었을때에 불규칙적 명멸의 발생이 현저해지는 경향이 있는 것이 알려져 있다.This flicker is regular flickering and irregular flickering. The regular flickering occurs at the end of the glass valve of the fluorescent lamp depending on the frequency of the AC power supply, and does not cause much discomfort to the user of the fluorescent lamp. It is known that this occurs when the anode oscillation occurs irregularly and repeatedly in the fluorescent lamp, and it is known that irregular flickering tends to be remarkable when the lighting time of the fluorescent lamp is about 1,000 hours or more.

이 명멸은 형광램프 스탠드 등에 사용되는 유리밸브의 안지름이 30mm정도 이하의 비교적 가느다란 유리밸브로서, 램프전류 0.3 내지 0.4암페어의 형광램프에서 특히 발행하기 쉽다.This flickering is a relatively thin glass valve whose inner diameter of the glass valve used for a fluorescent lamp stand or the like is about 30 mm or less, and is particularly easy to be issued in a fluorescent lamp having a lamp current of 0.3 to 0.4 amperes.

이 대책으로서 예를들어 고출력 형광램프 등에서 사용되고 있는 보조전극이나 막대형상의 보조전극을 텅스텐 코일 필라멘트의 방전전극의 앞면 등에 설치한 봉입가스로서 약 2.2torr의 아르곤이 봉입된 형왕램프가 개발되어 있다.As a countermeasure, for example, a fluorescent lamp in which about 2.2 torr of argon is enclosed has been developed as an encapsulating gas provided with an auxiliary electrode or a rod-shaped auxiliary electrode used in a high output fluorescent lamp or the like on the front surface of a discharge electrode of a tungsten coil filament.

이와 같은 형광램프는 명멸에 대해서는 효과가 있지만 예를 들어 3,000시간 정도 이상의 장시간 점등하면 전극재료의 유리밸브로의 스패터링(spattering)이 현저해져서 광속이 저하되는 결점이 있었다.Such a fluorescent lamp is effective for flickering, but, for example, when lighted for a long time of about 3,000 hours or more, spattering of the electrode material into the glass valve becomes remarkable, and thus there is a disadvantage that the luminous flux is lowered.

이 원인은 보조전극에 전자가 집속하기 때문에 온도가 저하된다.This cause is caused by the concentration of electrons on the auxiliary electrode, which lowers the temperature.

따라서 필라멘트로 음극휘점(輝點)을 생성시키기 위하여 음극 강하가 보조전극이 없을때 보다 큰 값이 필요하게 된다.Therefore, in order to generate a cathode bright point with filament, the cathode drop is required to be larger than when there is no auxiliary electrode.

따라서 단순히 보조전극을 설치하는 것만으로는 음극에로의 이온충격이 커져서 전극재료의 스패터링이 촉진되므로 장시간 점등후의 광속 유지율이 저하되는 것으로 생각된다.Therefore, simply providing the auxiliary electrode increases the ion impact on the cathode and promotes the sputtering of the electrode material. Therefore, it is considered that the luminous flux maintenance rate after long-time lighting decreases.

본 발명은 전술한 문제를 감안한 것으로서 장시간 점등하더라도 불규칙적인 명멸의 발생이 적을뿐만 아니라 광속의 저하가 적은 개량된 형광램프를 제공하는 것을 목적으로 한다.SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems, and an object of the present invention is to provide an improved fluorescent lamp with less occurrence of irregular flickering and less deterioration of luminous flux even if it is turned on for a long time.

본 발명은 보조전극을 구비하는 방전전극이 있고 관형 유리밸브내에 방전성 기체로서 2.4torr 내지 2.8torr의 아르곤이 봉입되어 있는 것을 특징으로 하고 램프전극이 0.3암페어 내지 0.4암페어인 형광램프이다.The present invention is a fluorescent lamp having a discharge electrode having an auxiliary electrode, and containing 2.4 tor to 2.8 tor argon as a discharge gas in a tubular glass valve and having a lamp electrode of 0.3 to 0.4 amp.

본 발명은 상세히 설명하기로 한다.The present invention will be described in detail.

첨부한 제1도는 형광램프의 보조전극이 있는 방전전극의 한 예의 정면도이다.1 is a front view of an example of a discharge electrode having an auxiliary electrode of a fluorescent lamp.

방전전극(1)은 스템(2)에 심어서 세운 두개의 리이드선(3)(3)에 텅스텐 코일 필라멘트(4)가 연결되어 배선되게 하고 전술한 텅스텐 코일 필라멘트(4)의 단부를 남긴 중앙부에는 전자방사물질(5)를 피착시키게 된다.The discharge electrode 1 is connected to two lead wires 3 and 3 planted on the stem 2 so that the tungsten coil filament 4 is connected and wired, and the center part leaving the end of the tungsten coil filament 4 described above. The electron emitting material 5 is deposited.

두개의 리이드선(3) (3)에는 스템(2)과 반대쪽의 방전공간쪽에 돌출하여 두개의 막대형사의 보조전국(6) (6)이 그 단부를 리이드선(3) (3) 스포트 용접하여 설치되어 있고, 선단(7) (7)이 서로 근접하도록 보조전극(6) (6)은 도중에서 부터 접어 구부려져 있게 되어있다.The two lead wires (3) (3) protrude to the discharge space on the opposite side of the stem (2) so that two rod-shaped auxiliary power stations (6) (6) have their ends welded to the lead wires (3) (3). The auxiliary electrodes 6 and 6 are bent from the middle so that the tips 7 and 7 are close to each other.

전술한 보조전극은 리이드선으로부터 텅스텐 필라멘트의 방전 공간쪽으로 일어서서 대략 직각으로 접어 구부려져 전술한 텅스텐 필라멘트와 평행하게 뻗어나 있어도 좋다.The auxiliary electrode described above may be bent from the lead wire toward the discharge space of the tungsten filament and bent at a substantially right angle to extend parallel to the aforementioned tungsten filament.

본 발명자들은 전술한 바와같은 보조전극을 사용한 형광램프의 경우 3,000시간정도 이상 점등했을때에 광속의 저하, 즉 광속 집속율이 저하되는 원인을 확인하기 위하여 전술한 제1도에 나타낸 전극을 사용하여 유리밸브의 안지름 27mm인 것을 사용하고 램프 전류를 0.35암페어(일정)로 하여 아르곤압을 2torr에서 0.2torr걸러 3torr까지 변화시켜서 형광램프를 각 가스압에 대하여 50개씩 제조하여 점화하고, 1,000시간마다의 광속을 측정하였다.The present inventors have used the electrode shown in FIG. 1 to determine the cause of the luminous flux deterioration, that is, the luminous flux focusing rate, when the fluorescent lamp using the auxiliary electrode as described above is turned on for about 3,000 hours or more. Using a glass valve with an inner diameter of 27 mm and changing the lamp current to 0.35 amperes (constant), argon pressure was changed from 2torr to 0.2torr to 3torr, and 50 fluorescent lamps were produced for each gas pressure. Was measured.

그 결과를 제2도에 나타내었다.The results are shown in FIG.

제2도는 가로축에 점등시간(시간)을 취하고, 세로축에 100시간 점등후의 광속을 100으로 한 광속유지율(%)을 1000시간마다 취한 특성곡선도로서 각각의 곡선과 그 아르곤압은 아래의 표와 같다.2 is a characteristic curve diagram in which the lighting time (hours) is taken on the horizontal axis and the luminous flux maintenance ratio (%) is set to 1000 after 100 hours of lighting on the vertical axis every 1000 hours. same.

또한 각각의 점은 각 아르곤압의 램프 50개의 평균값으로서 각각의 아르곤압에 있어서 광속유지율의 편차는 대략 동등하였다.In addition, each point is an average value of 50 lamp | ramp of each argon pressure, and the dispersion | variation in the luminous flux maintenance rate in each argon pressure was substantially equal.

[표 ]Table

Figure kpo00002
Figure kpo00002

제2의 곡선에서 도시한 바와 같이 아르곤압이 2.2torr보다 작은 램프는 점등시간이 2,000시간에서 광속 유지율이 78%를 하회하여 3,500시간 정도 이상이 되면 광속유지율이 70%이하로 되어 실용상 바람직하지 못했지만 아르곤압이 보다 높은 것은 점등시간이 2,000시간에서 광속유지율이 80%를 상회하여 7,000시간을 초과해도 광속유지율이 70% 이상으로서 실용상 바람직한 결과를 나타냈다.As shown in the second curve, a lamp having an argon pressure of less than 2.2torr has a lighting time of less than 78% at a lighting time of 2,000 hours and a light flux maintenance rate of 70% or less when it is about 3,500 hours or more. Although the argon pressure was higher, the light retention was higher than 80% at a lighting time of 2,000 hours, and the light retention was 70% or more even if it exceeded 7,000 hours.

그러나, 아르곤압이 2.8torr보다 높아지면 방전 개시전압이 높아져서 점등관회로의 경우 점등관의 재동작이 발생할 우려가 있으므로 불가하다.However, if the argon pressure is higher than 2.8torr, the discharge start voltage is high, and in the case of the lighting tube circuit, there is a possibility that reactivation of the lighting tube may occur.

이상의 결과는 전술한 바와같이 아르곤압을 높임으로써 음극의 이온 충격이 완화된 것으로 생각되고, 보조전극이 있는 형광램프의 라르곤앞이 2.4 내지 2.8torr이면 점등시간이 7,000시간 이상이 되어도 광속 유지율은 70%를 저하하지 않는 좋은 결과를 나타내는 것이 판명되었다.The above results suggest that the ion bombardment of the cathode was alleviated by increasing the argon pressure as described above, and the luminous flux retention was 70 even if the lighting time was 7,000 hours or more if the lagoon of the fluorescent lamp with the auxiliary electrode was 2.4 to 2.8torr. It turned out that the good result which does not fall% is shown.

본 발명자들은 전술한 실시예 뿐만 아니라, 유리밸브의 안지름이 30mm정도 이하의 비교적 지름이 작은 유리밸브로써 막대형상으로 한정되지 않고, 보조전극이 있는 램프 전류가 0.3내지 0.4암페어 단위길이당의 입력이 0.3 내지 0.4w/cm의 형광램프에 대하여 실험을 한바, 전술한 실시예와 동일한 결과가 얻어지는 것을 확인하였다.In addition to the embodiments described above, the inventors of the present invention are not limited to the rod shape as the inner diameter of the glass valve is about 30 mm or less in diameter, and the lamp current with the auxiliary electrode is 0.3 to 0.4 ampere input per unit length of 0.3. Experiments were carried out with a fluorescent lamp of from 0.4 w / cm to confirm that the same results as in the above-described examples were obtained.

본 발명은 전술한 바와 같이 보조전극을 구비하는 방전전극을 갖추고, 관형 유리밸브 내에 방전성 기체로서 2.4torr 내지 2.8torr의 아르곤이 봉해져 있는 것을 특징으로 하는 램프전류가 0.3암페어 내지 0.4암페어의 형광램프로써 2,000시간 정도 이상의 점등에 있어서도 안정된 양극진등을 발생시킬 수가 있으므로써, 불규칙적인 명멸이 적고, 또한 장시간 점등후의 광속 유지율이 높은 종래에는 구현할 수 없었던 형광램프를 제공할 수 있다는 효과가 있다.According to the present invention, there is provided a discharge electrode having an auxiliary electrode as described above, and a fluorescent lamp having a lamp current of 0.3 Amps to 0.4 Amps, characterized in that 2.4 tor to 2.8 tor argon is sealed in the tubular glass valve as a discharge gas. As a result, a stable anode light can be generated even after lighting for 2,000 hours or more, thereby providing a fluorescent lamp which can not be realized conventionally, which has less irregular flickering and a high luminous flux retention after long time lighting.

Claims (2)

관형 유리밸브의 양단에 전자방사 물질(5)이 피착되어 두개의 리이드선(3) (3)으로 이어지게 배선된 코일 필라멘트(4)와 전술한 리이드선에 부착된 보조전극(6) (6)이 있는 방전전극(1)이 봉입되어 있는 것에 있어서 램프 전류를 0.3 내지 0.4암페어로 규제하고, 또한 관형 유리밸브 내에 2.4torr 내지 2.8torr의 아르곤 가스가 봉해진 것을 특징으로 하는 형광램프.Electromagnetic radiation material 5 is deposited on both ends of the tubular glass valve so that the coil filament 4 is wired to lead to the two lead wires 3 and 3 and the auxiliary electrode 6 attached to the lead wire described above. The fluorescent lamp characterized in that the discharge current (1) is sealed, the lamp current is regulated to 0.3 to 0.4 ampere, and 2.4 tor to 2.8 torr of argon gas is sealed in the tubular glass valve. 제1항에 있어서, 전술한 관형유리 벨브의 안지름이 30mm 이하인 것을 특징으로 하는 형광램프.The fluorescent lamp according to claim 1, wherein the inner diameter of the above-mentioned tubular glass valve is 30 mm or less.
KR1019860005364A 1985-07-02 1986-07-01 A fluorescent lamp Expired KR890005195B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP144060 1985-07-02
JP60-144060 1985-07-02
JP60144060A JPS625551A (en) 1985-07-02 1985-07-02 fluorescent lamp

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KR870001642A KR870001642A (en) 1987-03-17
KR890005195B1 true KR890005195B1 (en) 1989-12-16

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KR870001642A (en) 1987-03-17

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