CN1913072A - Outside electrode type discharging lamp tube and discharging lamp tube device - Google Patents
Outside electrode type discharging lamp tube and discharging lamp tube device Download PDFInfo
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- CN1913072A CN1913072A CN 200610110714 CN200610110714A CN1913072A CN 1913072 A CN1913072 A CN 1913072A CN 200610110714 CN200610110714 CN 200610110714 CN 200610110714 A CN200610110714 A CN 200610110714A CN 1913072 A CN1913072 A CN 1913072A
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Abstract
The invention provides an external electrode discharge lamp with a simple structure, easy to manufacture, and having a high luminous efficiency. The discharge lamp has a structure in which a pair of belt-shape electrodes (2a, 2b) are arranged in parallel in an axial direction on the surface of a glass tube (1) filled with rare gas; one end (1a) of a lamp L is arranged as a power supply portion only for one electrode (2a), and the other end (1b) is arranged as a power supply portion only for the other electrode (2b) opposed to the one electrode (2a). That is, one end (1a) of one electrode (2a) does not have an electrode (2b) to be opposed to it and the other end (1b) of the other electrode 2b does not have an electrode (2a) to be opposed to it.
Description
Technical field
The present invention relates to the external-electrode discharge lamp pipe, and the original copy that particularly relates to scanner or photocopier reads with the employed external electrode type discharging tube for fluorescent lamp of light source, reaches the UV cleaning employed external electrode type excimers of light source (エ キ シ マ) pipe.
Background technology
In recent years, the original copy of scanner or photocopier reads the outer electrode discharge lamp that does not contain metallic vapours such as mercury with the general use of light source, a pair of band electrode is arranged on glass evacuated tube outside.
Original copy read be from the discharge lamp that is arranged on original copy face below to original copy face irradiation radiating light, will receive light by ccd linear sensor (ラ ィ Application セ Application サ) from the reverberation of original copy face.
This kind lamp has pair of electrodes at the outer peripheral face of lamp luminous tube, and electrode exists for example special length direction with luminous tube of opening flat 11-54089 number record relative and extend to the mode at the both ends formation cap shapes (キ ャ ッ プ) of luminous tube that banded mode, Ru Te open 2002-8408 number record.
It is generally acknowledged that the former produces discharge for the whole zone roughly that makes luminous tube, so from the luminous efficiency height of luminous tube.
And the external electrode fluorescent lamp pipe is not because inside charges into mercury, so be nearest environment amity product, expectation is to application backlight such as LCD monitor.
But, when a pair of band electrode is oppositely arranged, have the complicated problem of electric power-feeding structure.Special as described above Fig. 5 that opens flat 11-54089 number when the end of each electrode is connected with pin respectively, makes manufacturing process complicated, and, in use owing to pulling the problem such as disrumpent feelings that goes between that produces back and forth.
On the other hand, shown in Figure 1 as document is provided with the end cap of the end that covers luminous tube, and the power supply structure to each electrode different potentials also can be provided.But, in this structure, exist the power supply in the end cap to construct complicated this problem that becomes.
No. the 3622721st, [patent documentation 1] Japan Patent
Summary of the invention
The problem that the present invention will solve provides a kind of external-electrode discharge lamp pipe simple, simple in structure, that luminous efficiency is high of making.
In order to solve above-mentioned problem, the external-electrode discharge lamp pipe of this invention is on the surface of the glass tube that is charged into rare gas, a pair of band electrode is being oppositely arranged on axis direction abreast, it is characterized in that: an end is arranged to only a side electrode is arranged to the opposing party's that only will be relative with an aforementioned side's electrode electrode as power supply as power supply, an other end
In addition, it is characterized in that the other end of end of an aforementioned side's electrode and the opposing party's electrode is bigger than the area of other band-like portions unit length.
And, it is characterized in that an end of an aforesaid side's electrode and the other end of the opposing party's electrode are formed ring-type on the outer peripheral face of glass tube.
In addition, for by the external electrode fluorescent lamp pipe and with this external electrode fluorescent lamp pipe by the formed lamp tube device of power supply component that keeps by the end, it is characterized in that: said external electrode type fluorescent lamp pipe is oppositely arranged at axis direction abreast in the glass tube surface that charges into rare gas, a pair of band electrode; Aforementioned power supply component, its structure be, be arranged on said external electrode type fluorescent lamp pipe both ends, each is for one pole, in an end of said external electrode type fluorescent lamp pipe, a side electrode is powered; In an other end to the opposing party's electrode power supply.
The effect of invention
According to above formation, relate to external-electrode discharge lamp pipe of the present invention and can make the structure that manufacturing is simple, simple in structure, luminous efficiency is high.
Description of drawings
Fig. 1 represents external-electrode discharge lamp pipe of the present invention.
Fig. 2 represents the jig of powering.
Fig. 3 represents the electrode of external-electrode discharge lamp pipe of the present invention.
Fig. 4 represents external-electrode discharge lamp pipe of the present invention.
Fig. 5 represents other execution mode of the band electrode of external-electrode discharge lamp pipe of the present invention.
Fig. 6 represents external electrode fluorescent lamp pipe of the present invention and power supply jig that the external electrode fluorescent lamp pipe is kept in the end and the lamp tube device that forms.
Embodiment
Figure 1 shows that and relate to external-electrode discharge lamp pipe of the present invention, (a) be the schematic diagram of the discharge lamp L that sees from top, (b) profile of A-A ' of expression (a), (c) the side face appearance figure (with reference to the arrow of b figure) of the electrode 2a of expression (b) that see.
Among Fig. 1, discharge lamp L is made of glass tube 1, is provided with pair of electrodes 2a, 2b in its outside.Glass tube 1 is such as is to be made of lead glass, so its inside is charged into as the xenon of rare gas or be the mist of main component with the xenon.
Apply the fluorescent material of C word shape roughly on the internal face of glass tube 1 and form luminescent coating 3.Read the occasion of using light source at the single type original copy, this fluorescent material is chosen near the material with luminescence peak of wavelength 550nm.On the internal face of glass tube 1, form the peristome 4 that does not have coated fluorescent material.
In addition, owing to form luminescent coating 3, institute is so that this discharge lamp L radiation visible light.At this moment also be referred to as noble gas fluorescent lamp.
Electrode 2a, 2b, global shape is roughly band shape, is arranged at (length direction) elongation axially on the outer wall of glass tube 1.(conductive material such as ペ one ス ト forms by the metallic band (テ one プ) of for example aluminium alloy, copper etc. or silver paste for this electrode 2a, 2b
And, can be at electrode 2a, 2b is provided with narrow slit or opening.This is not only also to radiate from this narrow slit from peristome because make in glass tube 1 inner produce luminous.About the technology of narrow slit is set on electrode, for example, opens on 9-298049 number the spy and to be disclosed.
Discharge lamp L, by applying high-frequency voltage to pair of electrodes 2a, 2b, to be held in the glass tube (glass material) of electrode as dielectric, dielectric barrier discharge (barrier discharge バ リ ァ is put Electricity) takes place, and the ultraviolet ray that is taken place by this discharge makes the fluorescent material 6 that is coated in the glass inner face luminous.
Here, lift a numerical example, the length of establishing glass tube 1 is that 370mm, external diameter are Φ 10mm, and luminous length is about 340mm.The xenon that is charged at glass tube 1 is selected from the scope of 10k～100kPa, is for example charged into 50kPa.The width of electrode 2 is selected from the scope of 3～10mm, for example is 7mm, and noble gas fluorescent lamp is lit a lamp during electrical power 26W specified lighting a lamp.
Here, aforementioned discharge lamp L can make the ultraviolet light radiation when not applying fluorophor.This ultraviolet light can be described as excimers light, radiates the light of single wavelength strongly.The light of this single wavelength is by the gas decision that is charged into glass tube, when it is xenon (Xe), the radiation wavelength be the light of 172nm, when it is argon gas (Ar) and chlorine (CL), the radiation wavelength be the light of 175nm, when it is krypton (Kr) and iodine (I), the radiation wavelength be the light of 191nm, when it is argon (Ar) and fluorine (F), the radiation wavelength is the light of 193nm, when it be krypton (Kr) and bromine (Br), to radiate wavelength be the light of 207nm, when it is krypton (Kr) and chlorine (CL), radiating wavelength is the light of 222nm.So glass tube is because quartz glass is used in the radiation ultraviolet ray.
This excimers light, the UV that can use materials such as quartz glass clean or, other material surface upgrading.
At this, the present invention has following structure: pair of electrodes is roughly band shape and extends along the length direction of glass tube, and an end 1a only with a side electrode 2a as the power pack setting, the opposing party's that other end 1b only will be relative with this side's electrode 2a electrode 2b is as the power pack setting.Just the end side of this side's electrode 2a is not provided with electrode of opposite 2b, and, the distolateral electrode 2a that this side of relative direction is not set yet of another of the opposing party's electrode 2b.
Fig. 2 is that the power supply part that expression relates to maintenance external-electrode discharge lamp pipe L of the present invention is a jig 5.Jig 5 for example is made of phosphor bronze electroconductive components such as (リ ン Qing Copper), owing to each fluorescent tube L is installed on the support portion 50, so if to fluorescent tube L power supply, can realize the support of fluorescent tube L simultaneously.
That is, when discharge lamp L has been installed on the jig 5, though and a side electrode 2a contact, do not contact with the opposing party's electrode 2b.
And jig 5 is constituted as, though also be set at the end (the other end) of the opposition side of discharge lamp L, the jig that this other end is set up contacts with the opposing party's electrode 2b, and does not contact with a side electrode 2a.
Constitute thus, the jig by being arranged on an end, the side's of discharge lamp L electrode 2a is powered, the jig of the opposing party by being arranged on the other end, the opposing party's of discharge lamp L electrode 2b is powered.
In addition, form the discharge lamp block in the jig 5.
Be back to Fig. 1, the side's of a side electrode 2a end 2a1 does not exist the length s in the zone of comparative electrode 2b only to need to be equivalent to the length of the support portion of jig.S gives an example to length, then is about 5～10mm, considers that the words of block (ス ト ッ パ one) become about 15mm.
Fig. 3 is other execution mode that expression relates to external-electrode discharge lamp pipe of the present invention.
The specific area change is big mutually with belt-like zone 2b for the opposing party's of electrode 2b end 2b1.The advantage of this structure is when being installed to jig 5, and it is big that the area that contacts with electrode becomes, and power supplying efficiency increases.In addition, though only represented electrode 2b among the figure, an electrode 2a side end area too becomes big.
Fig. 4 is other execution mode that expression relates to external-electrode discharge lamp pipe of the present invention.
The end 2b1 of electrode 2 is a ring-type, all contacts jig for annulus.The advantage of this structure too, in the time of on being installed to jig 5, it is big that the area that contacts with electrode becomes, and can increase power supplying efficiency.And though figure only shows electrode 2b, electrode 2a also is that similarly the other end forms ring-type.
Fig. 5 represents the embodiment of electrode 2.The meaning of " band " of band electrode is the form that the envelope according to the electrode outer edge is formed, and shown in figure (a)～(e), comprises wire, mesh-shape, zigzag shape etc.And shown in figure f, the width of " band " of band electrode might not be identical.
Fig. 6 represents by the external electrode fluorescent lamp pipe and the end of this external electrode fluorescent lamp being guaranteed the formed lamp tube device of power supply component that is held in the end.The external electrode fluorescent lamp pipe is a structure shown in Figure 3, and the width of the end 2b1 of electrode 2b is wideer than the width of belt-like zone.Power supply component be the maintaining part 50 of jig 5 have elastic force, when the glass tube 1 of fluorescent tube is inserted into maintaining part 50,50 extended maintenances of maintaining part then.Though this moment, electrode 2b contacted with maintaining part 50, electrode 2a does not contact with maintaining part 50.Thus, only supply with and do not supply with to the electric power of 50 confessions of maintaining part to electrode 2a to electrode 2b.As shown in Figure 2, jig 5 is separately positioned on the both ends of fluorescent tube, and the direction of the length direction quadrature of edge and fluorescent tube is extended setting respectively.Each jig is one pole, carry out a side electrode 2a power supply on an end 1a of fluorescent tube and carry out structure to the opposing party's electrode 2b power supply on the 1b of the other end of fluorescent tube.
By above formation, relate to external-electrode discharge lamp pipe manufacturer of the present invention simple, simple in structure, can improve luminous efficiency.
Symbol description
1 glass tube
The 2a electrode
The 2b electrode
3 insulator layers
4 peristomes
5 power supply components
Claims (4)
1. external-electrode discharge lamp pipe, it is on the surface of the glass tube that is charged into rare gas, be oppositely arranged a pair of band electrode abreast along axis direction, it is characterized in that: an end is arranged to only a side electrode is arranged to the opposing party's that only will be relative with an aforementioned side's electrode electrode as power supply as power supply, an other end.
2. external-electrode discharge lamp pipe as claimed in claim 1 is characterized in that: other band-like portions are compared in the other end of end of an aforementioned side's electrode and the opposing party's electrode, and the area of its unit length is big.
3. external-electrode discharge lamp pipe as claimed in claim 1 is characterized in that: an end of an aforesaid side's electrode and the other end of the opposing party's electrode are formed ring-type on the outer peripheral face of glass tube.
4. lamp tube device, it is that the power supply component that keeps in the end by the external electrode fluorescent lamp pipe with this external electrode fluorescent lamp pipe is formed, it is characterized in that:
Said external electrode type fluorescent lamp pipe is oppositely arranged along axis direction abreast in the glass tube surface that charges into rare gas, a pair of band electrode;
Aforementioned power supply component, the structure that has be, is arranged on the both ends of said external electrode type fluorescent lamp pipe, and each is one pole, in an end of said external electrode type fluorescent lamp pipe one side's electrode is powered, in an other end to the opposing party's electrode power supply.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP229804/2005 | 2005-08-08 | ||
| JP2005229804 | 2005-08-08 | ||
| JP155596/2006 | 2006-06-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1913072A true CN1913072A (en) | 2007-02-14 |
Family
ID=37721967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610110714 Pending CN1913072A (en) | 2005-08-08 | 2006-08-08 | Outside electrode type discharging lamp tube and discharging lamp tube device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1913072A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102822941A (en) * | 2010-03-18 | 2012-12-12 | 株式会社杰士汤浅国际 | Dielectric barrier discharge lamp and lamp unit |
| CN102881556A (en) * | 2011-07-13 | 2013-01-16 | 株式会社杰士汤浅国际 | Ultraviolet irradiation device |
-
2006
- 2006-08-08 CN CN 200610110714 patent/CN1913072A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102822941A (en) * | 2010-03-18 | 2012-12-12 | 株式会社杰士汤浅国际 | Dielectric barrier discharge lamp and lamp unit |
| CN102881556A (en) * | 2011-07-13 | 2013-01-16 | 株式会社杰士汤浅国际 | Ultraviolet irradiation device |
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Open date: 20070214 |