KR940007647B1 - Low-pressure mecury discharge lamp - Google Patents

Low-pressure mecury discharge lamp Download PDF

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Publication number
KR940007647B1
KR940007647B1 KR1019920001214A KR920001214A KR940007647B1 KR 940007647 B1 KR940007647 B1 KR 940007647B1 KR 1019920001214 A KR1019920001214 A KR 1019920001214A KR 920001214 A KR920001214 A KR 920001214A KR 940007647 B1 KR940007647 B1 KR 940007647B1
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South Korea
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electrode
discharge lamp
main electrode
pressure mercury
low pressure
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KR1019920001214A
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Korean (ko)
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KR930017073A (en
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장의영
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삼성전자 주식회사
강진구
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00Gas-discharge or vapour-discharge lamps
    • H01J61/02Details
    • H01J61/04Electrodes; Screens; Shields
    • H01J61/06Main electrodes
    • H01J61/067Main electrodes for low-pressure discharge lamps
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00Gas-discharge or vapour-discharge lamps
    • H01J61/02Details
    • H01J61/04Electrodes; Screens; Shields
    • H01J61/06Main electrodes
    • H01J61/09Hollow cathodes

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  • Discharge Lamp (AREA)

Abstract

The low pressure mercury discharge lamp has a main electrode and an auxiliary electrode having a special shape to emit electrons easily so that the lamp is turned on at low temperature. The low pressure mercury discharge lamp includes a cylindrical glass tube (1), a main and an auxiliary electrodes (2,3) inserted into the tube (1), and an electrode connecting plate (4) for connecting electrodes and AC lines. The front edge of the main electrode has a saw tooth shape to emit electrons easily and the auxiliary electrode has a cylindrical shape to have a large initial electron emitting area.

Description

저압수은 방전램프Low pressure mercury discharge lamp

제 1 도는 종래의 저압수은 방전램프의 평면도.1 is a plan view of a conventional low pressure mercury discharge lamp.

제 2 도는 본 고안 저압수은 방전램프의 일부파생평면도.2 is a partially derived plan view of the low-pressure mercury discharge lamp of the present invention.

제 3 도는 제 2 도의 요부확대 종단면도.3 is an enlarged longitudinal sectional view of FIG.

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

1 : 유리판 2, 2' : 주전극1: glass plate 2, 2 ': main electrode

3, 3' : 보조전극 4, 4' : 전극연결판3, 3 ': auxiliary electrode 4, 4': electrode connecting plate

5 : 밀봉부 6 : 가스주입구5 sealing part 6 gas inlet

R1, R1', R2, R2' : 저항 21 : 톱니부R1, R1 ', R2, R2': resistor 21: tooth part

31 : 원통부31: cylindrical part

본 고안은 저압수은 방전램프에 관한 것으로, 특히 주전극과 보조전극과의 전자방출이 용이하게 하여 방전분위기의 조성을 향상시킴으로써, 저온상태에서도 점등이 용이하게 이루어질 수 있도록 한 저압수은 방전램프에 관한 것이다.The present invention relates to a low pressure mercury discharge lamp, and more particularly, to a low pressure mercury discharge lamp that facilitates electron emission between the main electrode and the auxiliary electrode and improves the composition of the discharge atmosphere so that the lamp can be easily turned on even at low temperature. .

일반적으로 수은방전램프는 수은증기의 방전을 이용한 광원을 말하는 것으로, 수은방전램프에 있어, 특히 저압수은 방전램프인 경우, 수은증기의 압력이 10-2~10-1mmHg정도이고, 방전시 방사되는 빛의 파장은 25-37Å으로 자외선이 많으므로 살균등으로 주로 사용되고 있는바, 이와 같이 사용되는 종래의 저압수은 방전램프는 제 1 도에 도시한 바와 같이, 수은과 가스가 주입되는 소정길이의 원통형 유리관(1) 좌우측 각각에는 원통형 금속관체로 형성된 주전극(2)(2')이 삽입 설치되고, 이 주전극(2)(2')에는 금속선의 보조전극(3)(3')이 삽입 설치되며, 상기 주전극(2)(2')과 보조전극(3)(3') 각각에는 전원공급단자(AC)를 저항(R1)(R1'), 저항(R2)(R2') 각각을 통해서 전극연결판(4)(4')으로 접합한 후, 이 전극연결판(4)(4')을 상기 유리관(1)과 밀봉부(5)(5')로서 고열 봉입형성하여서 된 것이다.In general, a mercury discharge lamp refers to a light source using discharge of mercury vapor. In a mercury discharge lamp, especially in the case of a low pressure mercury discharge lamp, the pressure of mercury vapor is about 10 -2 to 10 -1 mmHg, and is emitted during discharge. The wavelength of the light is 25-37Å, which is mainly used for sterilization lamps because there are many ultraviolet rays. The conventional low pressure mercury discharge lamp used in this way has a predetermined length to which mercury and gas are injected, as shown in FIG. On each of the left and right sides of the cylindrical glass tube 1, a main electrode 2, 2 'formed of a cylindrical metal tube is inserted, and an auxiliary electrode 3, 3' of a metal wire is inserted into the main electrode 2, 2 '. The main electrode (2) (2 ') and the auxiliary electrode (3) (3') are each provided with a power supply terminal (AC) resistors R1 (R1 ') and resistors R2 (R2'), respectively. After joining to the electrode connecting plate (4) (4 ') through the electrode connecting plate (4) (4') is a high heat-sealed type as the glass tube (1) and the sealing portion (5) (5 ') Will the hayeoseo.

도면중 미설명 부호 6은 가스주입구로서 가스주입이 완료되면 고열로 봉입시키게 된다.In the drawing, reference numeral 6 denotes a gas inlet, and the gas is filled at high temperature when gas injection is completed.

상기와 같이 형성된 종래의 저압수은 방전램프는 전원공급단자(AC)로부터 저항(R1)(R2) 각각을 통하여 일측의 주전극(2)과 보조전극(3)에 인가됨과 아울러 타측의 주전극(2'), 보조전극(3')에도 저항(R1')(R2')을 통하여 인가되면 주전극에서 보조전극으로 방전을 위한 전자방출이 이루어지면 방전분위기를 만들어주게 되는데, 이때 양측에서 상대적으로 저항이 작은 주전극(2)(2'), 보조전극(3)(3')사이에서 먼저 점등되면서 방전분위기를 만들어주게 된다.The conventional low pressure mercury discharge lamp formed as described above is applied to the main electrode 2 and the auxiliary electrode 3 on one side through the resistors R1 and R2 from the power supply terminal AC, and the main electrode on the other side ( 2 ') and the auxiliary electrode 3' is also applied through the resistors R1 'and R2' to discharge electrons from the main electrode to the auxiliary electrode to create a discharge atmosphere. The light is turned on first between the main electrode 2 (2 ') and the auxiliary electrode (3) (3') of which the resistance is small, thereby creating a discharge atmosphere.

이와 같이 어느 한쪽에서 방전분위기가 이루어지면 양측의 주전극(2)(2') 사이에서 점등 및 방전을 일으키게 된다.In this way, when the discharge atmosphere is made at either side, the lighting and the discharge are caused between the main electrodes 2 and 2 'on both sides.

그러나, 상기 저압수은 방전램프는 별도의 점등회로가 없어서 점등시 주전극(2)(2')과 보조전극(3)(3')사이의 어느 한쪽에서 먼저 가열한 후 방전분위기를 만들어 주게 되는데, 이때 주위온도가 0℃에 가깝게 되면 램프내에 주입된 수은의 증발이 어려워져서 방전이 쉽게 이루어지지 않아 점등이 되지 않거나, 점등이 된다하여도 그 시간이 매우 늦게 되는 문제점을 가지고 있었다.However, since the low pressure mercury discharge lamp does not have a separate lighting circuit, the low pressure mercury discharge lamp is first heated at either one of the main electrode 2 (2 ') and the auxiliary electrode (3) (3') to make a discharge atmosphere. In this case, when the ambient temperature is close to 0 ° C., the mercury injected into the lamp becomes difficult to discharge, and thus, the discharge is not easily performed.

따라서 본 고안의 목적은 주전극과 보조전극사이에서 방전을 위하 전자방출이 용이하게 이루어지도록 하여 저온상태에서도 점등 및 방전을 용이하게 할 수 있도록 하는 저압수은 방전램프를 제공하고자 하는데 있으며, 상기의 목적을 실현하기 위하여 본 고안은 저압수은 방전램프에 있어서, 방전을 위한 전자방출을 하는 원통형의 주전극의 선단부를 톱니형으로 형성시키고, 상기 주전극내에 삽입설치되는 보조전극 역시 원통형으로 형성시킨 것을 특징으로 한다.Therefore, an object of the present invention is to provide a low-pressure mercury discharge lamp to facilitate the light emission and discharge even in a low temperature state to facilitate the discharge of electrons between the main electrode and the auxiliary electrode. In order to realize the present invention, in the low pressure mercury discharge lamp, the distal end portion of the cylindrical main electrode for discharging electrons for discharging is serrated, and the auxiliary electrode inserted into the main electrode is also formed in a cylindrical shape. It is done.

이하, 첨부된 도면에 의거 본 고안을 상세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

제 2 도는 본 고안 저압수은 방전램프의 일부파생 평면도이고, 제 3 도는 본 고안 저압수은 방전램프의 요부확대 종단면도로서, 수은과 가스가 주입되는 소정길이의 원통형 유리관(1)내에 원통형의 주전극(2)과 보조전극(3)이 삽입 설치되고, 상기 주전극(2)과 보조전극(3)은 전원공급단자(AC)로부터 전극연결관(4)으로 접합후 밀봉부(5)로서 고열 봉입하여서 된 저압수은 방전램프에 있어서, 상기 방전을 위한 전자방출을 하게되는 원통형의 주전극(2)을 저온상태에서 수은의 증발이 어렵더라도 용이하게 전자방출을 하기 위하여 선단부를 전계의 세기가 강하도록 톱니부(21)를 형성시키고, 상기 주전극(2)내에 삽입 설치되는 보조전극(3)은 초기 가열면적을 크게 하고 방전분위기 조성이 향상될 수 있도록 소정의 외경을 갖는 원통부(31)로 구성시켜서 된 것이다.FIG. 2 is a partial plan view of the low pressure mercury discharge lamp of the present invention, and FIG. 3 is an enlarged longitudinal sectional view of the main part of the low pressure mercury discharge lamp of the present invention, and a cylindrical main electrode in a cylindrical glass tube 1 of a predetermined length into which mercury and gas are injected. (2) and the auxiliary electrode (3) is inserted and installed, the main electrode (2) and the auxiliary electrode (3) is joined to the electrode connecting pipe (4) from the power supply terminal (AC), and then heat as a sealing portion (5) In the low-pressure mercury discharge lamp encapsulated, the strength of the electric field is strong at the tip to easily discharge electrons even though it is difficult to evaporate mercury in the low temperature state of the cylindrical main electrode 2 that emits electrons for the discharge. To form the toothed portion 21 so as to be inserted into the main electrode 2, the auxiliary electrode 3 has a cylindrical portion 31 having a predetermined outer diameter so as to increase the initial heating area and improve the discharge atmosphere composition. It was made up of.

상기와 같이 구성하여서 된 본 고안의 작용효과를 설명하면 다음과 같다.Referring to the operation and effect of the subject innovation made up as described above are as follows.

먼저, 전원공급단자(AC)로부터 주전극(2)과 보조전극(3)에 전원이 공급되게 되면, 주전극(2)에서는 방전을 위한 전자방출이 이루어지게 되는데, 이때 주전극(2)에는 선단부에 톱니부(21)가 형성되어 있어, 이 톱니부(21)로부터 전자방출이 되고, 이 주전극(2)으로부터 방출된 전자는 주전극(2)의 내부에 설치된 원통부(31)의 보조전극(3)으로 방전되면서 보조전극(3)을 가열시켜 방전분위기를 만들어 주게 되므로 주전극간에 점등 및 방전을 반복시키게 된다.First, when power is supplied to the main electrode 2 and the auxiliary electrode 3 from the power supply terminal AC, the main electrode 2 emits electrons for discharging. The tooth part 21 is formed in the front-end | tip part, and an electron is emitted from this tooth part 21, and the electron discharged from this main electrode 2 is carried out of the cylindrical part 31 provided in the main electrode 2 inside. Since the auxiliary electrode 3 is discharged to the auxiliary electrode 3, the auxiliary electrode 3 is heated to create a discharge atmosphere, thereby repeatedly lighting and discharging between the main electrodes.

이때, 상기 방전시 수은가스를 전리시킴으로써 빛을 방출시키게 되는 것이다.At this time, the light is emitted by ionizing the mercury gas during the discharge.

이와 같이 점등 및 방전을 하게 되는 저압수은 방전램프는 방전을 위한 전자방출을 하는 주전극(2)의 선단부를 전계의 세기가 강하도록 톱니부(21)를 형성시킴으로써 저온에 의하여 수은증발이 어렵더라도 전자방출이 용이하게 이루어지게 되어 방전을 원활하게 할 수 있고, 상기 주전극(2)으로부터 방출되는 전자를 방전하게 되는 보조전극(3)은 초기가열면적을 크게 하기 위하여 원통부(31)로 형성시킴으로써 방전시 가열면적이 크게 증대되므로 방전분위기의 조성이 크게 향상시킬 수 있게 되어 저온상태에서도 빠른시간내에 용이하게 점등시킬 수 있게 되는 것이다.The low pressure mercury discharge lamp that is turned on and discharged as described above forms a toothed portion 21 so that the electric field strength is strong at the tip of the main electrode 2 for emitting electrons for discharge. The electron is easily discharged to facilitate discharge, and the auxiliary electrode 3 which discharges the electrons emitted from the main electrode 2 is formed of a cylindrical portion 31 to increase the initial heating area. In this way, since the heating area during discharge is greatly increased, the composition of the discharge atmosphere can be greatly improved, so that the lamp can be easily turned on within a short time even at low temperature.

이상에서 설명한 바와 같이 본 고안은 저압수은 방전램프에 있어서, 전자를 방출하는 주전극의 선단부를 전자방출이 용이하도록 톱니부로 형성시키고, 상기 방출되는 전자를 방전시키는 보조전극은 가열면적을 크게 한 원통부로 형성시킴으로써, 용이한 전자방출과 방전분위기 향상으로 인하여 주위온도가 저온인 상태에서도 램프의 점등을 빠른시간내에 용이하게 할 수 있는 이점을 제공하게 되는 것이다.As described above, in the present invention, in the low pressure mercury discharge lamp, the tip of the main electrode emitting electrons is formed as a toothed portion to facilitate electron emission, and the auxiliary electrode for discharging the emitted electrons has a large heating area. By forming a negative, it is possible to easily turn on the lamp even in a state where the ambient temperature is low due to the easy electron emission and discharge atmosphere is provided to provide an advantage.

Claims (1)

수은과 가스가 주입되는 원통형 유리관(1) 양측에 원통형 주전극(2)과 보조전극(3)이 삽입 설치되고, 상기 주전극(2)과 보조전극(3)은 전원공급단자(AC)로부터 전극연결판(4)으로 접합후 밀봉부(5)로서 봉입하여서 된 저압수은 방전램프에 있어서, 상기 원통형 주전극(2)의 선단부를 전자방출이 용이하도록 톱니부(21)로 형성하고, 상기 주전극(2)내에 삽입 설치되는 보조전극(3)은 초기가열면적을 크게하여 방전분위기 조성이 향상되도록 원통부(31)로 형성하여서 된 것을 특징으로 하는 저압수은 방전램프.The cylindrical main electrode 2 and the auxiliary electrode 3 are inserted into both sides of the cylindrical glass tube 1 into which mercury and gas are injected, and the main electrode 2 and the auxiliary electrode 3 are connected from a power supply terminal AC. In the low pressure mercury discharge lamp bonded to the electrode connecting plate 4 and encapsulated as the sealing portion 5, the distal end portion of the cylindrical main electrode 2 is formed as a tooth portion 21 to facilitate electron emission. A low pressure mercury discharge lamp, characterized in that the auxiliary electrode (3) inserted into the main electrode (2) is formed of a cylindrical portion 31 to increase the initial heating area to improve the discharge atmosphere composition.
KR1019920001214A 1992-01-28 1992-01-28 Low-pressure mecury discharge lamp KR940007647B1 (en)

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