WO2004049388A1 - 蛍光ランプおよび照明器具 - Google Patents
蛍光ランプおよび照明器具 Download PDFInfo
- Publication number
- WO2004049388A1 WO2004049388A1 PCT/JP2003/014947 JP0314947W WO2004049388A1 WO 2004049388 A1 WO2004049388 A1 WO 2004049388A1 JP 0314947 W JP0314947 W JP 0314947W WO 2004049388 A1 WO2004049388 A1 WO 2004049388A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- fluorescent lamp
- bulb
- electrode
- bulbs
- valve
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/30—Vessels; Containers
- H01J61/32—Special longitudinal shape, e.g. for advertising purposes
- H01J61/322—Circular lamps
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J5/00—Details relating to vessels or to leading-in conductors common to two or more basic types of discharge tubes or lamps
- H01J5/50—Means forming part of the tube or lamps for the purpose of providing electrical connection to it
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/30—Vessels; Containers
- H01J61/32—Special longitudinal shape, e.g. for advertising purposes
- H01J61/327—"Compact"-lamps, i.e. lamps having a folded discharge path
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/70—Lamps with low-pressure unconstricted discharge having a cold pressure < 400 Torr
- H01J61/72—Lamps with low-pressure unconstricted discharge having a cold pressure < 400 Torr having a main light-emitting filling of easily vaporisable metal vapour, e.g. mercury
Definitions
- the present invention relates to a fluorescent lamp and a lighting fixture using the fluorescent lamp.
- Conventional double-ring fluorescent lamps include, for example, the double-ring fluorescent lamp shown in FIG.
- the double ring-shaped fluorescent lamp 3 2 1 is placed outside the ring-shaped inner ring-shaped glass bulb 3 2 2, and a ring-shaped outer ring-shaped glass bulb 3 with a larger ring diameter.
- One discharge path is formed by connecting the discharge paths in 3 2 3 with the communication section 3 2 4, and the total light flux and lamp efficiency are improved by extending the discharge path length (for example, see Patent Document 1).
- the total luminous flux and the lamp efficiency are improved by extending the discharge path length as compared with that formed by a single annular bulb.
- Patent Literature 1 Japanese Patent Application Laid-Open No. 9-129180 ([016], [017], Figures 1 and 2)
- the connecting portion 3 24 is formed.
- the forming process of the connecting portion 3 24 is not always easy, and the connecting portion 3 24 is not always easy.
- the strength of 3 2 4 tends to decrease. That is, the inner and outer ring-shaped glass pulp 322, 323 is heated and bent so as to be softened as a whole, and then a flame of a wrench is blown onto a portion where the connecting portion 324 is to be formed. In this case, gas is blown into these glass bulbs 3 2 2 and 3 2 3 and blown out so that the tube wall protrudes outward by the gas pressure to form small holes. By welding these outwardly protruding blow-off tips to each other (blow-out with a wrench), These small holes are communicated with each other to form a connection portion 3 2 4.
- the connecting portion 324 is connected to the inner ring-shaped glass bulb in a narrow gap (for example, 1 mn! To 3 mm) between the inner and outer ring-shaped glass bulbs 32 2, 32 3.
- the blower must be blown so as to locally connect the outer peripheral surface curved in a convex arc shape of 3 2 2 and the inner peripheral surface curved in a DA arc shape of the outer ring-shaped glass bulb 3 2 3 Therefore, there is a problem that the connection work is not easy because the curvatures of the opposing peripheral surfaces are different.
- inner Oyohi outer ring-shaped glass bulb 3 2 2, 3 2 3, a pair of electrodes 3 2 5 because they are formed in each annular , 326 are sealed with the axially outer end surfaces 327a, 328a of the electrode sealing ends 327, 328, respectively, and the connecting portions 324 facing the circumferential direction.
- a space that is expanded in a substantially C-shape is formed so that gaps La and Lb between the outer end surfaces 329a and 330a on the side are La ⁇ Lb.
- the outer-surface-side gaps L a and L b of the U-shape increase, and accordingly, the discharge path length of the entire fluorescent lamp 21 becomes shorter, and the non-light emitting portion becomes larger.
- the base 331 attached so as to straddle the electrode sealing ends 3 27, 3 28 and the connecting portion 3 24 side end is also formed in a fan shape, and is enlarged. There are issues.
- the present invention has been made in view of such circumstances, and an object of the present invention is to provide a fluorescent lamp and a lighting device which have a small bulb distortion and a high intensity and a high lamp efficiency. Disclosure of the invention
- a plurality of straight tube portions having a tube outer diameter of 12 to 2 Oram are connected in the same plane via a bent portion, and are arranged concentrically on the same plane. It has a plurality of annular valves, and one end of each of the outermost and innermost valves of the plurality of annular valves.
- the annular valve is formed in a polygonal shape, for example, a square shape, from a plurality of straight pipe portions and a bent portion connecting the straight pipe portions.
- the bent portion may be formed by locally bending a single straight tubular valve, or may be formed by molding when the ends of a plurality of straight tubular valves are joined together. Any of valves formed in a bent shape such as a letter shape or an L-shape, or those formed by connecting these in combination with a straight tubular valve may be used.
- the outer diameter of the straight pipe section is in the range of 12 to 20 mm, and the optimum range of the outer diameter of the pipe in consideration of lamp characteristics such as lamp efficiency and manufacturing conditions is 14 to 18 mm.
- the pipe outer diameter slightly changes during the forming process of the bent portion and partially falls outside the above range, but in the case of the present invention, most of the straight pipe portion is It only has to be within the range.
- the outer tube diameter of the straight tube portion is set to 2 Omm or less. If the tube outer diameter of the straight tube part is 20 mm or less, it is possible to achieve a lamp efficiency equal to or higher than that of the conventional small-diameter annular fluorescent lamp.
- the outer diameter of the straight pipe section may be 18 mm or less.
- the thickness reduction as a fluorescent lamp can be sufficiently satisfied.
- the outer diameter of the straight pipe portion be 14 mm or more.
- Monocyclic valves, O has at least three straight tube portions each also bent portion connecting the inner portions of the straight tube portion is formed such that one less than the straight tube portion.
- the bent portion is disposed between the plurality of straight pipe portions such that the straight pipe portions are located on substantially the same plane.
- the annular valve is formed in an annular shape so as to surround substantially the center of the polygon, and the plurality of annular valves are formed.
- the concentric valves are connected concentrically to form one discharge path surrounding the center of each annular valve in a multiplex manner. That is, in the annular bulb, the inside of the straight tube portion is connected by the bent portion, and one discharge path is formed by a pair of electrodes sealed at one end of the plurality of annular valves. It is not necessary that all the straight pipe sections have the same length, and only one pipe may have a different length. When four straight pipes of approximately the same length are connected by three bends, the valve forms a substantially square shape with the straight pipes, and the annular valve located outside is Is also formed in a larger square than the annular valve located inside.
- the annular valve locally heats only a portion to be bent of one long straight tubular valve in which a phosphor film or the like is formed on the inner surface in advance, or the end portions of a plurality of straight tubular valves are connected to each other. Is formed by locally heating only the portion that forms the bent portion by joining the two, and the other portions are not heated, so that the deterioration of the phosphor due to the heating of the entire annular bulb is suppressed, and the initial luminous flux is improved.
- the luminous flux maintenance factor can also be improved. Also, since the heating of the bulb is localized, the distortion of the glass is reduced, and the strength can be increased.
- the discharge path length can be increased, and both the total luminous flux and the lamp efficiency can be improved. Can be.
- the annular bulb is formed by bending one straight tubular bulb, and the length of the straight tubular bulb is 800 to 250 mm, before the bent portion is formed. It is desirable that the length of the portion where the bent portion is to be formed be within a range of 15 to 50% of the entire length of the straight tubular valve.
- the length of the portion where the bent portion is to be formed is set to be 50% or less of the entire length of the straight tubular valve. If the length of the portion where the bent portion is to be formed exceeds 50%, the number of phosphor layers that are thermally degraded during bending increases, and the effect of improving the light output decreases. On the other hand, if the length of the portion where the bent portion is to be formed is less than 5%, preferably less than 15%, it becomes difficult to process the bent portion, and it is also difficult to ensure the mechanical strength of the bent portion.
- the length of the portion where the bent portion is to be formed is within the range of 5 to 50% of the total length of the straight tubular bulb, the length of the straight tube portion on which the phosphor layer which is not easily deteriorated by heat is formed. Since it is moderately large, it is easy to manufacture, secures mechanical strength, and can provide a fluorescent lamp with a high light output improving effect.
- the length 1 of the straight pipe part of each bulb is 150 to 500 mm, and the radius of curvature r of the inner surface of the bent part is 0.03 ⁇ r / 1 ⁇ 0.3. It is desirable to satisfy
- the length 1 of the straight tube In this fluorescent lamp, it is necessary to increase the length 1 of the straight tube as much as possible to obtain the illuminance for general lighting, as the main light output is the light emission from the straight tube where the phosphor layer is less thermally degraded.
- the length 1 of the straight pipe section needs to be 150 to 500 mm, preferably 180 to 400 mm.
- the radius of curvature 1- of the inner surface of the bent portion indicates the size of the bent portion. If the radius of curvature r is large, the length of the portion where the bent portion is to be formed becomes large, and the spectral output decreases. Conversely, if the radius of curvature r is small, the degree of deformation of the valve at the time of forming the bent portion becomes large, making it difficult to manufacture and reducing the valve strength. Therefore, the inventor of the present invention examined various balances between the light output and the shaping of the bending portion, and found that the ratio of the radius of curvature r of the inner surface to the length 1 of the straight pipe portion was within a predetermined range. It was found that the best combination was obtained.
- the ratio r / 1 between the radius of curvature r of the inner surface of the bent portion and the length 1 of the straight pipe portion is less than 0.03.
- the degree of deformation of the bent part increases, making it difficult to manufacture.
- the stress concentrates locally on the bent part, and the strength may increase due to the possibility of breakage. It is not possible because it lowers.
- r / 1 exceeds 0.3, the proportion of the bent portion in the annular bulb increases, so that the effect of thermal degradation of the phosphor layer at the bent portion increases, and the lamp efficiency decreases, which is not possible. is there.
- the curvature radius r of the bent portion when the length 1 of the straight pipe portion is set to 150 to 500 mm satisfies the relationship of 0.03 ⁇ rZl ⁇ 0.3.
- the bent portion can be easily formed, and the light output from the straight tube portion can be effectively used while minimizing the influence of the thermal degradation of the phosphor layer in the bent portion.
- the multi-ring bulb is a double-ring bulb composed of an inner bulb and an outer bulb. Opposed to the outer end face at a predetermined distance It is preferable that a cap is provided on the one end and the other end to cover each outer end face.
- outer surfaces facing each other refers to a configuration in which the pipe axes of the straight pipes constituting each valve end are positioned on the same axis, and the outer ends of each valve end face each other.
- the outer end faces do not face each other, but the end faces have an angle such that the angle formed by the intersection of the pipe axes of the straight pipe sections that constitute each valve end is approximately 90 °. May be opposed to each other.
- the outer end face of one end on the electrode sealing side of the inner and outer bulbs respectively enclosing the pair of electrodes and the outer end face of the other end on the communication section side are arranged facing each other at a predetermined interval. Therefore, the distance between the facing electrodes can be reduced to make the discharge path length as long as possible. This makes it possible to reduce the size of the dark portion at the opposing end and to reduce the size and weight of the die attached to the opposing end.
- the outer end faces of the other ends of the inner and outer bulbs connected by the connecting part are melted and sealed, and the shortest length from the outer end face to the connecting part is 15 mm or less. Desirably.
- valve end means heating and melting the middle part of the valve and welding the pipe walls of the valve near the center of the valve axis, using a separate sealing part such as a dummy stem. Instead of just sealing with valve material.
- the shape of the blown sealing end may be a flat surface parallel to a direction perpendicular to the valve axis, or a hemispherical protruding shape.
- the shortest length from the outer end surface of the other end (the other end on the connection side) of the inner and outer valves to this connection is 15 mm or less. And the dark part of the light can be reduced. For this reason, the light emitting region of the bulb can be enlarged and the discharge path length can be increased by the amount corresponding to the reduction of the dark portion.
- the inner and outer bulbs are each formed in a substantially rectangular shape, and both electrode side ends of the inner and outer bulbs are extended to the corners of the rectangular outer bulb.
- the dark portion caused by the shadow of the electrode is located in the base and is concealed by the base, so that the brightness of the fluorescent lamp can be improved.
- both electrodes are located outside the corners of the approximately square fluorescent lamp, the light emitting section will be located at all corners (four corners) of the square. Even if the light is emitted at any angle around the center of the rectangle, it is possible to always emit light at each corner (four corners). Thereby, the luminance uniformity of the entire fluorescent lamp can be improved.
- the bulb is filled with mercury vapor as a discharge medium, and the connecting portion is formed so that a part thereof is substantially flush with the outer end surfaces on the other end side of the inner and outer bulbs, It is desirable that the electrode of the outer bulb is arranged at a position where the distance from the valve end is larger than the electrode position of the inner bulb.
- a discharge path is also formed near the outer end face on the other end side of these inner and outer bulbs, and light is emitted also near the outer end face. For this reason, the light emitting area of the fluorescent lamp can be increased and the discharge path length can be increased.
- the outer bulb electrode is configured to have a greater distance from the valp end than the inner bulb electrode, a coldest part is formed near the electrode sealing end of the outer bulb.
- the mercury vapor pressure can be controlled.
- the electrode side end of at least one of the inner and outer bulbs terminates axially inward from the electrode side end of the inner bulb. It is desirable that the power receiving means is disposed at a position corresponding to a space portion extending on the outer side in the axial direction from the electrode side end of one of the bulbs on the outer surface of the base covering the outer surface.
- a power receiving means such as a base pin on the outer surface of the base on a space extending axially outward from the electrode side end of one of the bulbs. It can be used effectively to make the base smaller.
- the fluorescent lamp of the present invention may be a second electrode sealed at a bulb end corresponding to an intermediate position of the discharge path.
- first electrode Lights between one of a pair of electrodes (hereinafter, referred to as “first electrode”) and the second electrode sealed at the end of the bulb corresponding to both ends of one discharge path formed in the bulb.
- a discharge is generated in a part of the discharge path by applying the starting voltage of the device. Since the discharge path length between the first electrode and the second electrode is shorter than the discharge path length of the entire arc tube, a starting voltage is applied between the pair of first electrodes of the arc tube. Compared to the case, The starting voltage between the first electrode and the second electrode is low. After that, the discharge voltage is also formed on the other first electrode, so that the starting voltage of the entire arc tube can be reduced.
- the fluorescent lamp can be dimmed and lit by generating a main discharge between only one of the pair of electrodes of the bulb and the second electrode and lighting the bulb.
- the bent portions of the inner and outer bulbs are substantially the same as the tube diameter of the straight tube portion where the center of the radius of curvature of the inner surface and the outer surface is substantially the same and the tube diameter is in contact. It is desirable that it is what is.
- the double ring valve is configured by combining an inner annular valve and an outer annular valve having substantially similar shapes with different maximum ring diameters.
- One end of each of the inner and outer annular valves is connected to each other by a connecting portion in a state of being arranged substantially concentrically so that the bent portions face each other.
- each annular valve is formed such that the centers of the radii of curvature of the inner surface and the outer surface are substantially at the same position, and the center of the radius of curvature is also substantially the same at the inner and outer annular valves.
- the center of the radius of curvature of the bent portion is substantially the same position” means that the center points of the respective radii of curvature overlap or are slightly shifted. In the operation of the present invention, if the distance between the center points is within 10% of the radius of curvature, more preferably within 5%, it is within the allowable range.
- the radius of curvature of the bent portion of each of the inner and outer annular valves is set at the center of the radius of curvature of each of the opposed bent portions of each annular valve so that the interval between adjacent valves is substantially the same over the bent portion and the straight portion.
- Each is formed so as to be substantially at the same position. In this case, the distance between the center points is within an allowable range as long as it is within 10% of the radius of curvature, more preferably within 5%.
- the interval between the adjacent bent portions should be approximately the same as the interval between the straight pipe portions.
- the interval between the bent portions and between the straight pipe portions is preferably 3.0 to 1 O mm.
- the tube diameter of the bent portion is formed to be substantially the same as the tube diameter of the adjacent straight tube portion.
- the pipe diameter of the bent portion is defined by the pipe diameter in the valve pipe cross section orthogonal to the direction of parallel radiation from the center point of the virtual annular plane formed by the annular valve. If it is rather flat, it is defined as the average pipe diameter. "Substantially the same” means that the pipe diameter of the bent portion is within ⁇ 10%, preferably ⁇ 5% of the pipe diameter of the straight pipe portion.
- the appearance of the bent portion of the annular valve is visually recognized as being formed by drawing a continuous curve from the straight tube portion, so that the appearance of the arc tube is improved and the lighting is performed.
- a portion having a locally low temperature is not formed, a coldest portion is hardly formed, and blackening or spotting due to agglomerated mercury is less likely to occur in a bent portion.
- the tube length of the straight tubular bulb is almost equal to the discharge path length, it must be in the range of 800 to 250 mm in consideration of obtaining the same light output as the conventional small-diameter annular fluorescent lamp. .
- the annular bulb is formed in a substantially square shape by four straight pipe portions, three bent portions are formed at diagonal positions of the substantially square shape, and a cap is provided in the remaining one portion. Is desirable.
- This provides a light source in which the main light-emitting portion forms each side of a substantially square shape, and also allows the length of the light-emitting portion to be as large as possible because the base is located on a diagonal line of the substantially square shape. Yes, the use of three bends facilitates valve formation.
- the annular bulb is formed in a substantially square shape by five straight pipe portions, and a bent portion is formed at each diagonal position of the substantially square shape, and one side of the substantially square shape is formed. It is desirable that a base is provided substantially at the center.
- This provides a light source in which the main light emitting portion forms each side of a substantially square shape, and the base is located substantially at the center of one side of the substantially square shape, so that both ends of the bulb are arranged on the same line. Therefore, the mounting structure of the base can be simplified.
- the lighting fixture of the present invention may include: a fixture main body; the plurality of fluorescent lamps; and a high-frequency lighting circuit that supplies lamp power to the fluorescent lamp at a high frequency of 10 kHz or more. desirable.
- the fixture body may be a ceiling-mounted type, a ceiling-hanging type, or a wall-mounted type, to which gloves, seeds, reflectors, etc. may be attached, so that the fluorescent lamp is exposed. Or a light guide plate.
- FIG. 1 is a front view of a fluorescent lamp according to a first embodiment of the present invention.
- FIG. 2 is a front view of a fluorescent lamp according to a second embodiment of the present invention.
- FIG. 3 is a front view of a fluorescent lamp according to a third embodiment of the present invention.
- FIG. 4 is a front view of a fluorescent lamp according to a fourth embodiment of the present invention.
- FIG. 5 is a front view of a fluorescent lamp according to a fifth embodiment of the present invention.
- FIG. 6 is a front view of a fluorescent lamp according to a sixth embodiment of the present invention.
- FIG. 7 is a front view of a fluorescent lamp according to a seventh embodiment of the present invention.
- FIG. 8 is a front view of a fluorescent lamp according to an eighth embodiment of the present invention.
- FIG. 9 is a front view of a fluorescent lamp according to a ninth embodiment of the present invention.
- FIG. 10 is a front view of a fluorescent lamp according to a tenth embodiment of the present invention.
- FIG. 11 is an arrow view of XIA and XIB in FIG.
- FIG. 12 is a front view of the fluorescent lamp according to the eleventh embodiment of the present invention.
- FIG. 13 is a schematic front view, partially cut away, of a fluorescent lamp showing a 12th embodiment of the present invention.
- FIG. 14 is a schematic front view of a fluorescent lamp similarly equipped with a base.
- FIG. 15 is a schematic block diagram of the high-frequency lighting device.
- FIG. 16 is a diagram showing the front of a fluorescent lamp according to a fourteenth embodiment of the present invention and a schematic block diagram of a high-frequency lighting device therefor.
- FIG. 17 is a partially cutaway schematic front view of a lighting fixture according to a fifteenth embodiment of the present invention.
- FIG. 18 is a front view of a fluorescent lamp according to a sixteenth embodiment of the present invention.
- FIG. 19 is an enlarged front view showing a part of the fluorescent lamp of FIG.
- FIG. 20 is a front view of a fluorescent lamp according to a seventeenth embodiment of the present invention.
- FIG. 21 is a front view of a conventional double annular fluorescent lamp. '
- FIG. 22 is an enlarged view of the XXI section of FIG. BEST MODE FOR CARRYING OUT THE INVENTION
- FIG. 1 is a front view of a fluorescent lamp 1 according to a first embodiment of the present invention.
- the fluorescent lamp 1 has an outer bulb 3 of a substantially square shape slightly larger than the inner bulb 2 outside the inner bulb 2 whose front shape is formed in a substantially square shape, and a required interval g on the same plane. Are arranged concentrically and are connected by the connecting part 4 to form one double pipe (double valve).
- These inner and outer bulbs 2 and 3 are made up of glass bulbs 5 and 5 which are formed into a substantially square shape with four circular tubular straight sections having a circular cross-sectional shape and the point of intersection of the diagonal line is point O. I have.
- the glass bulbs 5, 5 are made of soft glass such as soda lime glass and lead glass, but may be made of hard glass such as borosilicate glass or quartz glass.
- a discharge medium composed of a rare gas and mercury is sealed in these glass bulbs 5,5.
- the rare gas is argon (Ar) gas, and the filling pressure is about 320 Pa.
- the noble gas sealed in the inner and outer valves 2 and 3 includes argon, neon or krypton.
- At least one of the glass bulbs 5, 5 may be filled with amalgam.
- Amalgam is an alloy of mercury and a substance that forms an alloy with mercury.
- an amalgam such as zinc-mercury may be encapsulated for quantitative mercury encapsulation.
- the amalgam may be in any shape, such as pellets, columns, and plates.
- the amalgam is stored in a small tube arranged on a stem sealed to the end of the glass bulb 5,5.
- the amalgam is fixed or stored in either of these positions by means of melting, mechanical holding or the like. Further, the amalgam may be accommodated movably in the valve. If amalgams for controlling the vapor pressure of mercury such as Bi-Sn-Pb and Bi-In are installed in glass bulbs 5,5, the optimum condition is obtained even when the ambient temperature is relatively high. Turns on the fluorescent lamp 1.
- the inner surfaces of the glass bulb 5 a thickness of about 1 made of alumina (A 1 2 0 3) fine particles as the metal oxide fine particles.
- alumina (A 1 2 0 3) fine particles as the metal oxide fine particles.
- 0 mu m protective film 6 is formed.
- the protective film 6 is preferably those composed of metallic oxide particles, the metal oxide fine particles, alumina (A 1 2 0 3), silica (S i 0 2) may be used those well known such as It is possible.
- a phosphor layer 7 composed of phosphor particles of three-wavelength emission type is formed over substantially the entire length.
- the phosphor layer 7 has a coating amount of 4.0 to 7.5 mg / cm 2 , preferably 6.0 to 7.5 mg, of phosphor fine particles having a correlated color temperature of 500 K in a three-wavelength emission type. It is applied in a range of 5 mg / cm 2 , dried, and fired to form a film with a thickness of about 20 / im.
- This fluorescent lamp 1 does not bend the entire glass bulb as in the conventional ring-shaped fluorescent lamp, but bends a part of the glass bulb, so that the amount of the applied fluorescent material can be increased and the film peeling can be prevented.
- the phosphor layer 7 can be made thicker while minimizing it. Thereby, the initial luminous flux of the fluorescent lamp 1 can be improved.
- the phosphor layer 7 is preferably formed at least in the straight pipe portion 5a before the formation of the bent portion 5b, but is not limited thereto, and the phosphor layer 7 is formed after the formation of the bent portion 5b. You may.
- the phosphor constituting the phosphor layer 7 can be composed of a known phosphor such as a three-wavelength light-emitting phosphor and a halophosphate phosphor, but it is preferable to use a three-wavelength light-emitting phosphor from the viewpoint of luminous efficiency. .
- the wavelength emission type fluorescent material 4 5 0 nm B as blue phosphor having an emission peak wavelength in the vicinity of aMg 2 A l 16 0 27: Green with E u 2 +, the emission peak wavelength around 540 nm as a system phosphors (L a, C e, T b) P0 4, 6 1 0 nm Y 2 0 as a red-based phosphor having an emission peak wavelength in the vicinity of 3: E u 3 + and the like are applicable However, it is not limited to these.
- Each glass bulb 5 has four straight pipe portions 5a and three bent portions 5b, and is coplanar so that the four straight pipe portions 5a form substantially square sides. It is connected and arranged. At this time, the length 1 of one side of the glass bulb 5 is preferably 20 Omm or more, and in the present embodiment, 1 is about 300 mm.
- One end 5c of each glass bulb 5 is disposed substantially parallel and close to each other. At each end 5c, a filament electrode 8 composed of a triple coil coated with an emitter material is sealed. An electrode sealing end 5c is formed.
- the electrodes 8, 8 are supported by lead wires, which are sealed and supported by flared stems, button stems, bead stems, pinch seals, and the like.
- a thin tube for exhausting or storing a mercury alloy may be attached to this stem or the like.
- each straight pipe section 5a is 12 to 20 mm, and the wall thickness is 0.8 to: 1.5 mm. In this embodiment, the inner diameter of the pipe is about 16 mm, and the wall thickness is about 1 mm. 2 mm.
- the inside of each straight pipe section 5a is communicated via each bent section 5b, and each end section 5d on the opposite side in the axial direction from each electrode sealing end section 5c is connected by a connecting section 4. It is connected so that it can communicate freely, and the path from one electrode 8 of the inner valve 2 to the other electrode 8 of the outer bulb 3 via the connecting part 4 to the other electrode 8 of the outer bulb 3 A discharge path is formed.
- the connecting part 4 is the end of the connecting part 4 d on the connecting part 4 side of the inner and outer valves 2 and 3. And the like.
- the inner and outer bulbs 2 and 3 are arranged such that the coldest part is formed at at least one bent part 5b or at the end 5d of the connecting pipe farthest from the electrodes 8 and 8 when the fluorescent lamp 1 is turned on.
- the bent portion 5b may be structured so that the temperature does not easily rise when the lamp is turned on. For example, a structure that forms a space away from the discharge path, or a structure that has a larger surface area than other parts and has an excellent heat dissipation effect.
- the bent portion 5b Since the bent portion 5b has a smaller surface area ratio to the entire bulb 5 and 5 than the straight tube portion 5a, the amount of light emission is small and the shape can be easily processed arbitrarily, so that it is easy to adopt a structure that does not easily rise in temperature. Therefore, the temperature of the coldest part formed in the bent part 5b can be easily controlled to a desired temperature, so that even if the ambient temperature is high, it is possible to secure an optimal mercury vapor pressure, and further improve lamp efficiency. It is possible to do. In addition to the case where the mercury vapor pressure is controlled by the temperature of the coldest part, the mercury vapor pressure may be controlled by amalgam.
- the ends 5 d, 5 d of the inner and outer bulbs 2, 3 on the connection side and the sealing ends 5 c, 5 c of the electrodes are in a direction in which their respective axial centers intersect at an angle of about 90 °.
- the base 9 is attached so as to straddle these end portions 5 d, 5 d, 5 c, 5 c.
- the base 9 is provided with a power receiving unit composed of, for example, four pins electrically connected to the pair of electrodes 8, 8.
- the base 9 has an electric connection means such as a power receiving pin for connecting to a power supply means such as a socket, but this electric connection means may be provided at a position distant from both ends of the valves 5 and 5. Good.
- the base 9 may be configured to exhibit a function as a holding unit by mechanical connection with the power supply unit.
- the bent portions 5b are formed at three corners of a substantially square shape formed by the straight pipe portion 5a of each glass valve 5, and the base 9 is provided at the remaining one corner. It is configured.
- reference numeral 10 denotes an exhaust pipe.
- the fluorescent lamp 1 thus configured is lit by, for example, a high-frequency lighting circuit (not shown).
- the high-frequency lighting circuit may be provided with switching means.
- the switching means may be divided into a mode for illuminating the fluorescent lamp with high efficiency and a mode for illuminating the fluorescent lamp with high output, and may be a means for continuously changing between these modes.
- the lighting of the fluorescent lamp 1 is adjusted by switching the switching means of the lighting circuit. For example, when the switching means is divided into a mode for high-efficiency lighting and a mode for high-output lighting, In this case, the fluorescent lamp 1 can be used by appropriately selecting these modes according to the use conditions.
- the fluorescent lamp 1 is mounted according to the shape of the lighting fixture main body or the optical characteristics of the lighting fixture, and is combined with a plurality of fluorescent lamps of the same shape or different shapes to change the arrangement height of the same planar shape or bulbs. It is attached to the instrument body.
- the fluorescent lamp 1 is lit by high-frequency power input from the base 9, and an arc discharge is generated in a path from the electrode 8 of the inner bulb 2 to the electrode 8 of the outer bulb 3 via the connecting portion 4 and inside the connecting portion 4.
- the coldest portion is formed at least at one bent portion 5b, for example, at the bent portion 5ba farthest from the pair of electrodes 8 and 8, or at the connecting portion side end 5d near the connecting portion 4. Is done.
- the outer surface temperature may be, for example, in the range of about 40 to 65 ° C. If the coldest part is within this temperature range, the fluorescent lamp 1 is set to the optimal mercury vapor pressure. Therefore, it is possible to light with high lamp efficiency.
- the discharge path of the inner bulb 2 is connected to the discharge path of the outer bulb 3 to form a single discharge path. Since the discharge path can be extended to about twice the discharge path as compared with the single tube having only the outer bulbs 2 and 3, the total luminous flux can be almost doubled and the lamp efficiency can be improved.
- the phosphor layer 7 is previously formed on the inner surface of the glass bulb 5 and only the bent portion is locally heated, the thermal degradation of the phosphor layer 7 is suppressed. As a result, the initial luminous flux can be improved, and the luminous flux maintenance rate can be improved.
- the glass bulbs 5 of the inner and outer bulbs 2 and 3 are each formed into a square by locally bending one long straight tubular bulb.
- 5 may be formed by connecting the ends of a plurality of straight tubular valves to form a bent portion 5b, or may be formed in a rectangular shape.
- the ends of a plurality of straight tubular valves are locally heated and melted, a connection is formed by blowing, and the connections are connected to each other, and a bent portion 5b having a desired shape is formed by molding. It is also possible.
- each of the glass bulbs 5 of the inner and outer bulbs 2 and 3 does not substantially contain a lead component, and has a sodium oxide content of 1.0 mass. /. And those having a softening temperature of 720 ° C. or less can be used.
- substantially contains no lead component means that it may be contained as long as it is about an impurity, and preferably 0.1 substance. amount. /. Refers to the following. Needless to say, the most preferable is a glass containing no lead component.
- the content of sodium oxide is 0.1 mass. /.
- the content of sodium oxide is 0.1 mass.
- the reason why the ratio is defined to be / 0 or less is that if the value exceeds the above value, the light output of the fluorescent lamp 1 is affected by the sodium component precipitated on the inner surface of the glass bulb 5.
- the composition is essentially free of lead and contains 1.0 mass of sodium oxide. / 0 follows and, as the following glass softening temperature 7 20 ° C, content and C a 0 of K 2 0 and L i 2 0, Mg O, adjusting the content of B a O and S r O Can be obtained.
- a phosphor is applied to a straight tubular bulb made of glass having a sodium oxide content of 0.1% by mass or less and a softening temperature of 720 ° C or less, for example, 692 ° C, and then forms a bent portion. Then, the amount of sodium precipitated on the inner surface of the valve becomes extremely small, and the decrease in the visible light output due to the reaction of sodium is suppressed.
- the softening temperature is 720 ° C. or less, the heating temperature at the time of forming the bent portion is kept low, the thermal degradation of the peripheral phosphor is reduced, and the light output is improved.
- each glass bulb 5 of the present embodiment is as follows, and the softening temperature is 692 ° C.
- S i O 2 6 5. 0 wt%, A 1 2 0 a: 4. 0 wt. /. , Na 2 ⁇ : 0.05 mass. / 0, ⁇ , ⁇ : 1 1. 0 wt%, L i 2 0 a: 2. 8 wt%, C a ⁇ : 2. 0 wt%, Mg 0: 1. 4 wt. /. , S r O: 5. 0 wt%, B a O: 8. 5 wt%, SO 3: 0. 1 5 mass. /. , B 2 03: 0 wt%, S b 2 O 3: 0 wt%, F e 2 0 3: 0. 0 3 mass%, Other: 0. 1-7 wt%
- FIG. 2 is a front view of a fluorescent lamp 1A according to a second embodiment of the present invention.
- This fluorescent lamp 1A is the same as the fluorescent lamp 1 above, except that five straight tubular bulbs are connected.
- the characteristic feature is that the inner and outer valves 2 and 3 are formed by forming the bent portion 5b at four locations.
- each of the inner and outer bulbs 2 and 3 is formed by forming a substantially square one side of each glass bulb 5 by a straight pipe portion 5 aa, 5 aa having a length of / of the other one.
- a pair of electrodes 8, 8 are respectively sealed to one of the ends of the straight tubes 5aa, 5aa to form an electrode sealing end 5c, while the other ends are connected to the connecting portion. It is formed at each end 5d.
- the base 9 is provided so as to straddle these two electrode sealing ends 5c, 5c and both connecting portion side ends 5d, 5d. According to the present embodiment, the base 9 is located substantially at the center of one side of the substantially rectangular shape of the glass valve 5, so that both end portions 5c, 5d of the inner and outer bulbs 2, 3 face the same line.
- the mounting structure of the base 9 is simplified.
- FIG. 3 is a front view of a fluorescent lamp 1B according to a third embodiment of the present invention.
- the fluorescent lamp 1B is formed in a desired shape such as an elliptical front shape in a gap between each bent portion 5b of the inner bulb 2 and each bent portion 5b of the outer bulb 3 in the fluorescent lamp 1 described above.
- the length Lc of the connecting part side end 5d from the outer end (the right side surface in Fig. 3) to the axial end is set to 11 mm or less.
- the configuration is the same as that of the second embodiment shown in the figure.
- the holding member 11 has thermal conductivity to the extent that it has a heat radiation effect, for example, an adhesive made of silicone resin.
- the outer surface of each bent portion 5 b of the inner glass bulb 2 and each bent portion of the outer glass bulb 3 The inner surface of No. 5 is connected to each other to be held together and integrated, and at the same time, is held in a cushioned manner by its elasticity. For this reason, the strength of the glass inner and outer bulbs 2 and 3 can be increased.
- the inner and outer bulbs 2 and 3 are strongly integrated with each other, the inner and outer bulbs 2 and 3 can be easily handled, and can be easily attached to lighting equipment. Further, since each holding member 11 has a heat radiation property, the coldest portion ca is formed at the bent portion 5ba farthest from the electrode 8 of the outer bulb 3.
- FIG. 4 is a front view of a fluorescent lamp 1C which is a fourth embodiment of the present invention.
- the fluorescent lamp 1C is different from the fluorescent lamp 1B in that an opposing gap L d between the axial outer end face 5co of the electrode sealing end 5c and the axial end face 5do of the connecting portion side end 5d. It is characterized in that it has a smaller size, and has the same configuration as the fluorescent lamp 1B shown in FIG. That is, as described above, in the conventional double annular fluorescent lamp 321, shown in FIG. 21, the electrode sealing ends 327, 328 and the end on the connecting portion 324 side are formed.
- both the inner and outer electrode sealing ends 5c, 5c and both the connecting portion side ends 5d, 5d are straight pipes and are curved. Therefore, the outer end surfaces 5co, 5co of the two electrode sealing ends 5c, 5c can be flush with each other, that is, almost flush with each other.
- the 5 d, 5 d outer end surfaces 5 do, 5 do can also be flush with each other, that is, they can be substantially flush.
- both outer end surfaces 5co, 5co of the inner and outer electrode sealing ends 5c, 5c, and both outer end surfaces 5do, 5d of both connecting portion side sealing ends 5d, 5d are formed.
- the inner and outer facing gaps L d with the do can be formed substantially in parallel, and as a result, both facing gaps L d can be reduced.
- the inner and outer electrode sealing ends 5c, 5c of the non-light emitting portion and the connecting portion side ends 5d, 5d are connected to each other by the reduced width of the inner and outer facing gap Ld. Since the approach can be made closer, the dark part can be reduced by that amount, and the light emitting part can be extended to improve the lamp efficiency.
- FIG. 5 is a front view of a fluorescent lamp 1D according to a fifth embodiment of the present invention.
- This fluorescent lamp 1D is different from the fluorescent lamp 1 according to the first embodiment shown in FIG. 1 in that the inner and outer bulbs 5b, 5b of the inner and outer bulbs 2, 3 facing the base 9 in a diagonal direction. It is characterized in that the holding members 11 are interposed between these members to connect and integrate the inner and outer valves 2 and 3 and to hold them in a buffered manner.
- the fusing sealing portions formed at the connection portion side end portions 5d, 5d are formed in a hemispherical shape. Otherwise, the configuration is the same as that of the first embodiment.
- both electrode sealing ends 5 of the inner and outer bulbs 2 and 3 are provided.
- the strength of the inner and outer bulbs 2 and 3 is enhanced by installing a base 9 on the c and 5c and the connecting section side ends 5 d and 5 d so as to straddle these two ends.
- the inner and outer bent portions 5b, 5b are connected to each other by the holding member 11 so as to be integrated with each other, and are mutually held in a buffered manner.
- the strength of the inner and outer pulp 2,3 can be increased.
- the holding member 11 can be provided at only one place at the bent portions 5b of the inner and outer valves 2 and 3, the material used for the holding member 11 can be reduced, and the cost can be reduced. Mounting work can be reduced.
- the holding member 11 may be attached between the linear portions 5a, 5a.
- FIG. 6 is a front view of a fluorescent lamp 1E according to a sixth embodiment of the present invention.
- This fluorescent lamp 1E is different from the fluorescent lamp 1C of the fourth embodiment shown in FIG. 4 in that a pair of electrode sealing ends 5c, 5c are connected to a pair of electrodes 8, 8 in a base 9.
- the main feature is that extending portions 5e, 5e, which are extended substantially linearly to the sealing ends 5d, 5d on both connecting portion sides, respectively, until they are hidden by being located at the position shown in FIG.
- the outer corner of each bent portion 5b which is the corner of the outer bulb 3, is formed in an arc shape R. Except for these, it has the same configuration as the fluorescent lamp 1C of the fourth embodiment.
- the fluorescent lamp 1E is formed with the lengths of the inner and outer bulbs 2 and 3 so that the following equation (1) is satisfied. 5 e, 5 e are formed, and the pair of electrodes 8, 8 are located in the base 9 and hidden.
- L 1 The outside length of the right side mo in FIG. 6 of one side having the electrode 8 of the outer bulb 3.
- L 2 The outside length of the left side h o in FIG. 6 of one side having the connection portion 4 of the outer bulb 3.
- L 3 The outside length of the right side mi in FIG. 6 of one side having the electrode 8 of the inner bulb 3.
- L 4 The outer length of the left side hi in FIG. 6 of one side having the connecting portion 4 of the inner valve 3.
- the fluorescent lamp 1E since the entire length of the outer bulb 3 is extended only by the extending portion 5e, the discharge path length can be lengthened accordingly. For this reason, the brightness of the fluorescent lamp 1E can be improved.
- the pair of electrodes 8 and 8 are hidden by being located in the base 9, The shadows of these electrodes 8, 8 can be hidden in the base 9. Therefore, the brightness of the fluorescent lamp 1E can be further improved, and the aesthetic appearance can be improved.
- the inner and outer valves 2 and 3 are respectively formed by the lengths L 1 and L 3 of the right sides mo and mi of one side (the bottom side of the square in FIG. 6) having the base 9 and the left sides ho and
- the center 90 of the base 9 in the width direction (the left-right direction in FIG. 6) can be set to the center of the square. It can be placed on the center line Oa passing through O.
- FIG. 7 is a front view of a fluorescent lamp 1F according to a seventh embodiment of the present invention.
- the main feature of this fluorescent lamp 1F is that the fluorescent lamp 1 shown in FIG. 1 is provided with an extended portion 5f, 5 mm, an amalgam 12, and a holding member 11.
- the extension portions 5 f, 5 ⁇ connect the pair of electrode sealing ends 5 c, 5 c of the inner and outer bulbs 2, 3 with the axially outer end surfaces of the connecting portion side sealing end 5 d of the outer bulb 3.
- the outer surface (outer bottom surface in FIG. 7) is formed by linearly extending on or near the extension of a.
- Amalgam 12 is a metal layer such as indium (I n) or gold (A n) adhered to a substrate such as stainless steel, which is easy to adsorb mercury. It is arranged in the toe 5a.
- the amalgam 12 is supported by a support wire 12a, and the other end of the support wire 12a is sealed with a pinch seal to the inner surface of the connection-side sealing end 5d.
- the holding member 11 is an adhesive made of silicone resin similarly to the holding member 11 shown in FIG. 3, and the outer end face of the connection end side sealing end 5 d of the inner bulb 2 and the inner It is interposed in the gap between the electrode 2 and the outer surface of the electrode-side sealing end 5 d of the bulb 2, and connects the two in a free and heat-dissipating manner.
- the inner and outer bulbs 2 and 3 each have an arcuate R outer surface at each bent portion 5b.
- 1 shown in FIG. 7 is the shortest length from the connecting portion 4 to the outer end surfaces of the pair of communicating portion side ends 5d, 5d, and is 8 mm in the present embodiment.
- the length 1 may be 15 mm or less (0 to 15 ⁇ ), and a preferred range is 0 to 1 Omm, but it may be 2 to 1 Oram.
- FIG. 8 is a front view of a fluorescent lamp 1G according to an eighth embodiment of the present invention.
- This fluorescent lamp 1G is different from the fluorescent lamp 1F shown in FIG. 7 in that the amalgam 12 and its supporting wire 12a and the holding member 11 are omitted, while the connecting portion 4 is replaced by the U-shaped connecting portion 4.
- the electrode 8 of the outer bulb 3 is formed as a so-called high-mount electrode 8 a, which is higher than the electrode 8 of the inner bulb 2, and the base 9 a conceals almost all of these electrodes 8, 8 a There is a feature in that is arranged.
- the U-shaped connecting portion 4a is formed by integrally connecting the end portions 5d, 5d of the communicating portions of the inner and outer valves 2, 3 in a U-shape by molding or the like.
- the length 1 (see Fig. 7) from the outer end (right end in Fig. 7) of the connecting portion 4 to the outer end surfaces of the pair of communicating side end portions 5d, 5d is set to zero, and Has formed.
- the temperature is lower than that of the case where the coldest portion is formed at the lower corner in FIG. 8 of the U-shaped connecting portion 4a, for example. Stability can be improved.
- the coolest part of the latter has low temperature stability because it is directly exposed to the outside air.
- a vent hole may be formed in the base 9a to allow the outside air to flow.
- FIG. 9 is a front view of a fluorescent lamp 1H according to a ninth embodiment of the present invention.
- This fluorescent lamp 1H is different from the fluorescent lamp 1G shown in FIG. 9 in that a space S is formed in the base 9a, and the high mount electrode 8a of the outer bulb 3 is connected to the electrode 8 of the inner bulb 2.
- four pins 14, 14, 14, 14, 14, 14, as power receiving means are erected on the outer surface of the space 9 of the base 9 a, which is the same as the electrode 8 which is not a high mount. The feature is that it does.
- the space S in the base 9 a is formed by making the electrode sealing end 5 c of the outer bulb 3 shorter than the electrode sealing end 5 of the inner bulb 2. It is formed axially outward of the sealing end 5c.
- the base 9a is formed, for example, in a rectangular tube shape by a resin mold or the like, and is configured to be at least two divisible into the front side and the back side in the drawing of FIG.
- the four outer lead wires 15 are connected to the inner ends of the four base pins 14 in the space S in the base 9a, and these outer leads are connected. Since a space for routing the wires 15 can be obtained, the easiness of the connection and wiring operations can be improved, and the interference between the outer lead wires 15 can be prevented.
- FIG. 10 is a front view of a fluorescent lamp 1I according to a tenth embodiment of the present invention
- FIG. 11 is an upper stage thereof before connecting the connecting portions 4 of the inner and outer bulbs 2 and 3 to each other. While the partial end view is shown, the lower part shows the partial end view after connecting the connecting parts 4 of the inner and outer valves 2 and 3, and the right half drawing is the XIA in FIG. 10.
- -An arrow view as seen from XIA, and the drawing on the left half side is an arrow view as seen from XIB-XIB in FIG.
- This fluorescent lamp 1I is different from the fluorescent lamp 1A shown in FIG. 2 in that a pair of exhaust pipes 16a and 16b made of a substantially L-shaped glass thin tube (not shown) of the inner and outer bulbs 2 and 3 are connected. It has a major feature in that it is improved.
- one of the inner and outer bulbs 2 and 3 for example, the outer end face of the electrode sealing end 5 c of the inner bulb 2 is inside the outer end face of the electrode sealing end 5 c of the outer bulb 3 (first The length of the inner valve 2 is slightly shortened so as to slightly retreat to the right side in FIG.
- a pair of exhaust pipes 16a and 16b are used to seal both electrode sealing ends 5c of these inner and outer valves 2 and 3. Projection is provided on the outer surface of 5c so as to protrude outward in the axial direction, and communicates with the inner and outer valves 2 and 3, respectively.
- the outer ends of the openings of these exhaust pipes 16a and 16b are shown No air supply / exhaust This is connected to the machine head to exhaust the inside and outside valves 2 and 3, while supplying rare gases such as argon and mercury.
- one of the pair of exhaust pipes 16a and 16b, for example, 16a is axially (horizontally) from the outer end face of the electrode sealing end 5c of the inner bulb 2. It extends slightly coaxially outward, curves in an arc, and rises upward in the direction perpendicular to the axial direction (vertical direction).
- the other exhaust pipe 16b extends slightly coaxially (horizontally) outwardly from the outer end face of the electrode sealing end 5c of the outer bulb 3 and then forms an arc. It is curved and falls down in the direction perpendicular to the axis (vertical direction).
- the pair of inner and outer exhaust pipes 16a and 16b are oriented in directions opposite to each other (up and down) with respect to the direction perpendicular to the axis of the inner and outer valves 2 and 3, respectively. Even if 16a and 16b are close to each other, they do not interfere with or obstruct one (for example, 16b), and the other exhaust pipe, for example, the outer end of the opening of 16a, The supply and exhaust heads can be connected simply, quickly and securely.
- these heads can be connected to a pair of upper and lower exhaust pipes 16a and 16b almost simultaneously to supply and exhaust air. Thereby, the work efficiency of the air supply / exhaust process can be improved.
- a pair of upper and lower supply / discharge heads can be connected to the pair of upper and lower exhaust pipes 16a and 16b so that gas can be blown.
- the formation process of No. 4 can be performed easily, quickly and reliably, and the work efficiency can be improved.
- each bent part of the inner and outer valves 2 and 3 5 b The outer surface is formed in an arc shape R.
- FIG. 12 is a front view of the fluorescent lamp 1J according to the eleventh embodiment of the present invention.
- This fluorescent lamp 1J is different from the fluorescent lamp 1I shown in FIG. 10 in that the length of the outer bulb 2 on the electrode sealing end 5c side is the length of the inner bulb 2 on the electrode sealing end 5c side.
- the pair of upper and lower exhaust pipes 16a and 16b were replaced with a pair of outward and outward exhaust pipes 16a and 16b facing outward from the square center O. It has the main features in the point, and other configurations are almost the same as those of the fluorescent lamp 1I.
- the outer end face of the electrode sealing end 5c of the outer bulb 3 is retracted inward (to the right in FIG. 12) from the outer face of the electrode sealing end 5c of the inner bulb 2.
- the length of the side on the electrode sealing end 5c side of the outer bulb 3 is reduced to form a passage through which the inner exhaust pipe 16c of the inner bulb 2 passes outside the rectangle.
- the pair of outward exhaust pipes 16c and 16d extend slightly outward in the axial direction (horizontal direction) from the axially outward end surfaces of the pair of inner and outer electrode sealing ends 5c and 5c, respectively. It is curved in an arc shape and extends almost parallel to the outside of the fluorescent lamp 1J.
- FIGS. 13 to 15 show a fluorescent lamp 101 according to a 12th embodiment of the present invention, and FIG. 13 is a partially cutaway schematic front view of the fluorescent lamp 101.
- FIG. 14 is a schematic front view of a fluorescent lamp 101 equipped with a base
- FIG. 15 is a schematic block diagram of a high-frequency lighting device 116 similarly.
- a fluorescent lamp 101 is a double-ring glass bulb 102 configured substantially in the same manner as the second embodiment shown in FIG. 2, a pair of first electrodes 103, 103, a second electrode 104 and a phosphor layer 105.
- the glass bulb 102 is provided with the outer bulb 107 outside the inner bulb 106 and concentrically at the required distance g on the same plane, and is connected by the connecting part 108 It is configured as a double ring (double valve) with discharge paths.
- the inner valve 106 has five straight pipe portions 106 A1 to: 106 A5 and four bent portions 106B, and both end portions 106a and 106b are opposed to each other. It is formed as follows.
- the outer valve 107 has five straight pipe portions 107A1 to 107A5 and four bent portions 107B, and both end portions 107a and 107b face each other. It is formed so that. Emitters are applied to the other ends of the inner valve 106 and the outer valve 107 (ends of the valve 102 where the connecting pipe 108 is not formed) 106 b and 107 b, respectively.
- One end of the outer bulb 107 in which the first electrode 103 as a hot-cathode filament electrode is sealed (the end where the connecting pipe 108 of the bulb 102 is formed)
- a second electrode 104 having the same configuration as the first electrode 103 is sealed in 107 a.
- the one end 6a of the inner valve 106 is sealed by being blown out or by sealing a sealing member such as a dummy stem.
- the bulb ends 106 b and 107 b are located at both ends of one discharge path formed in the bulb 102, respectively, and the bulb in which the second electrode 104 is sealed is provided.
- the end 107a is located substantially in the middle of the discharge path.
- the first electrode 103, 103 and the second electrode 104 are filament electrodes composed of a triple coil coated with an emitter material, and a pair of lead wires 109, 109 at both ends. Supported by The lead wires 109 and 109 are respectively sealed to the other end side 106 b of the inner bulb 106 and the both end sides 107 a and 107 b of the outer bulb 107. It is sealed and supported by the flare stem 110, and is led out.
- reference numeral 105 denotes a phosphor layer made of, for example, three-wavelength light-emitting phosphor fine particles formed on a protective film (not shown).
- connection pin 113 is electrically connected to a lead wire 109, 109 of the valve 102 via an electric cord 112.
- the connection pin 113 may be provided so as to be implanted on the outer surface of the base 111 without passing through the electric cord 112 and the connector 114.
- a holding member 115 made of, for example, silicone resin is provided in a gap between the inner valve 106 and the outer valve 107.
- the fluorescent lamp 101 is connected to a high-frequency lighting device 116 as shown in FIG.
- the high-frequency lighting device 1 16 includes output terminals 1 16 a, 1 16 b, 1 1.6 c, 1 16 d, a well-known DC voltage generator 1 17, a main circuit 1 18 and a control circuit 1 It is configured to have 19.
- the DC voltage generation circuit 117 includes, for example, a rectifier and a smoothing capacitor (both are not shown), and rectifies and smoothes the AC voltage of the commercial AC power supply Vs to generate a DC voltage.
- the main circuit 118 has a switching element (not shown) such as a field-effect transistor, and the switching operation of the switching element converts the DC voltage output from the DC voltage generating circuit 117 into a high-frequency voltage.
- Output terminal 1 Output to 16 a, ⁇ , 1 16 d is an example, a field-effect transistor, and the switching operation of the switching element converts the DC voltage output from the DC voltage generating circuit 117 into a high-
- the other end 107b of the outer bulb 107 can be Both ends of the electrode 1 103 are connected to the output terminals 1 16 a and 1 16 a, respectively, and both ends of the first electrode 103 of the other end 106 b of the inner bulb 106 are connected. Are connected to the output terminals 1 16 b and 1 16 b, respectively, and both ends of the second electrode 104 of one end 107 a of the outer bulb 107 are output terminals 1 16 d and 1 16 connected to d respectively. Note that, in FIG. 15, the base 111, the connection pins 113, and the connectors 114 shown in FIG. 14 are omitted.
- the control circuit 119 causes the switching element to perform a switching operation at the preheating frequency, the starting frequency, and the lighting frequency.
- the output terminals 1 16a, 1 16a, the output terminals 1 16b, 1 16b and the output terminals 1 16 d, 1 A preheating voltage is output between both ends of the 16 d, and the starting voltage and the starting voltage between the output terminals 1 16 a and 1 16 d or between the output terminals 1 16 a and 1 16 b at the time of start and lighting.
- the lighting voltage is output.
- the output voltage output from the main circuit 1 18 is supplied to the output terminals 1 16 b and 1 16 b via the switch SW 1, and output to the output terminals 1 16 d and 1 1 via the switch SW 2.
- 6d is configured to be supplied. That is, when the switch SW1 is turned on, the output voltage of the main circuit 118 is output between the pair of first electrodes 103, 103 (main discharge path), and the switch SW2 is turned on. In some cases, the output voltage of the main circuit 118 is configured to be output between the first electrode 103 and the second electrode of the outer bulb 107 (sub discharge path).
- the first electrode 103 of the outer bulb 107 is used as a common electrode to generate an output voltage on the main discharge path and the sub-discharge path, and when the switch SW2 is turned off, the output voltage is output on the sub-discharge path No voltage is generated.
- the control circuit 19 is configured so that the on / off of the switches SW1 and SW2 can be individually controlled.
- the switches SW1 and SW2 are turned on, and a preheating voltage is output from the main circuit 118 to preheat the pair of first electrodes 103, 103 and the second electrodes 104, respectively.
- the main circuit 1 18 of the high-frequency lighting device 1 16 and the second electrode 1 of the outer bulb 7 04 and 1st Between the first electrode 103 of the arc tube 102 and the first electrode 103 of the inner bulb 106 and between the pair of first electrodes 103, 103 of the arc tube 102.
- the specified starting voltage is supplied to the first electrode 103).
- the second electrode 104 of the outer bulb 107 and the first electrode 103 of the inner bulb 106 have the same potential.
- the starting voltage is a voltage sufficiently higher than the lamp voltage when the arc tube 2 is normally lit.
- the starting voltage is applied with the same voltage between the second electrode 104 and the first electrode 103 of the outer bulb 107 and the first electrode 103, 103 of the arc tube 2 Therefore, discharge occurs in the sub-discharge path (between the second electrode 104 and the first electrode 103 of the outer bulb 107) whose discharge path length is shorter than the main discharge path of the arc tube 102. Occurs and the outer bulb 7 lights up. Lighting of the outer bulb 107 may be detected by detection means (not shown). At the same time as the detection by the detection means or after a lapse of a predetermined time from the start of application of the starting voltage, the control circuit 119 turns off only the switch SW2.
- the sub-electrode in the outer valve 107 is turned off.
- the terminal of the discharge occurring in the discharge path extends from the second electrode 104 to the first electrode 103 of the inner bulb 106, and the first electrode 103 of the arc tube 102, The discharge is shifted to the main discharge path between 103 and thereafter, the fluorescent lamp 101 is stably turned on at high frequency.
- the outer bulb 10 7 It is only necessary to generate a voltage equivalent to the starting of the fluorescent lamp as a starting voltage, and the fluorescent lamp 10 is compared with a case where the starting voltage is applied only between the pair of electrodes 103, 103 of the arc tube 102.
- the starting voltage of (1) can be reduced, and the circuit design of the high-frequency lighting device (1 16) becomes easy.
- the switch SW1 is turned off and the switch SW2 is turned on to generate a main discharge continuously between the first electrode 103 and the second electrode 104 of the outer bulb 107 (sub discharge path).
- the switch SW1 is turned off and the switch SW2 is turned on to generate a main discharge continuously between the first electrode 103 and the second electrode 104 of the outer bulb 107 (sub discharge path).
- the outer bulb 7 can be turned on, and the bulb that the fluorescent lamp 101 turns on can be selected.
- FIG. 16 is a partially cutaway schematic front view of a fluorescent lamp 121 according to a fourteenth embodiment of the present invention. The same parts as those in FIG. 13 are denoted by the same reference numerals, and description thereof will be omitted.
- the fluorescent lamp 121 is the same as the fluorescent lamp 101 shown in FIG. 13 except that the second electrode 104 is connected to one end side 106 a of the inner bulb 106. Is sealed.
- the fluorescent lamp 122 is connected to the high-frequency lighting device 122 as shown in FIG. That is, at both ends of the first electrode 103 and the second electrode 104 of the outer bulb 107, the output terminals 1 16a, 1 16a, 1 16d of the high-frequency lighting device 122 are provided at both ends. , 1 16 d, respectively, and output terminals 1 16 b, 1 16 b, 1 at both ends of the first electrode 103 and the second electrode 104 of the inner bulb 106. 16 c and 1 16 c are connected respectively. Switches SW1 to SW4 are provided between the output terminals 116a to 116d and the main circuit 118 of the high-frequency lighting device 122, respectively. Other components of the high-frequency lighting device 122 are the same as those of the high-frequency lighting device 116 shown in FIG.
- switch SW1, switch SW3, and SW4 are turned on to apply a starting voltage to the sub-discharge path to generate discharge, and then switch SW4 is turned off to generate discharge in the main discharge path. Good.
- the second electrode 104 and the first electrode 103 are sealed on both ends 106 a and 106 b of the inner bulb 106, respectively. Since the second electrode 104 and the first electrode 103 are respectively sealed on both end sides 107 a and 107 b of the valve 107, the inner valve 106 or the outer valve 1 07 can be individually turned on as one fluorescent lamp. That is, the switches SW2 and SW3 are turned on, and the switches SW1 and SW4 are turned off to turn on the high-frequency lighting device. By supplying high frequency power from the device 122, the outer bulb 107 is lit by generating a continuous main discharge between the first electrode 103 and the second electrode 104.
- the inner valve 106 is connected to the first electrode 1.
- a continuous main discharge is generated between the third electrode 103 and the second electrode 104 to light the lamp.
- the inner bulb 106 and the outer bulb 107 have the phosphor layers 105 of different emission colors, the color light emitted from the fluorescent lamp 121 is changed.
- the inner bulb 10 is formed.
- daylight-colored emission light is obtained from the fluorescent lamp 121
- the outer bulb 107 is turned on, daylight-colored emission light is obtained from the fluorescent lamp 21 and light emission
- the fluorescent lamp 21 emits light of a neutral color between daylight and neutral white.
- the second electrode 104 performs a main discharge between the first electrode 103 and the inner bulb 106 or the outer bulb 107. It may not be generated, and may be sealed as an auxiliary electrode for generating a discharge for starting.
- the second electrode is used as an auxiliary electrode, it is not necessary to use a filament electrode.
- a simple conductor formed only of wells or a cold cathode such as a nickel sleeve may be used.
- FIG. 17 is a partially cut-away schematic front view of a lighting fixture 123 according to a fifteenth embodiment of the present invention.
- the same parts as those in FIGS. 13 to 15 are denoted by the same reference numerals, and description thereof will be omitted.
- the lighting equipment 1 23 shown in Fig. 17 is a direct-fitting lighting equipment with gloves 124 attached directly to the ceiling surface, etc., and the lighting equipment body 125 is attached to the ceiling surface using screws etc. Installed.
- the lighting fixture body 125 is provided with a plurality of lamp holders 126.
- the lamp holder 126 supports the inner bulb 106 of the arc tube 102 and the straight tube portion 106 A 2, 107 A 2,.
- the lamp 101 is disposed on the lighting fixture body 125.
- an adapter 127 is provided in the lighting fixture body 125.
- a high-frequency lighting device 116 is accommodated in the adapter 127.
- Adapter 127 is connected to an external commercial AC power supply. Also, connect the connector 1 14 to the adapter 1 27 The connection pin 113 is inserted, and the high-frequency lighting device 116 is connected to the first and second electrodes 103, 104 of the fluorescent lamp 101.
- the high-frequency lighting device 1 16 generates a discharge by applying a starting voltage to the sub-discharge path when the fluorescent lamp 101 is started, and then generates a discharge in the main discharge path. 01 is starting with a low starting voltage.
- FIG. 18 is a front view of a fluorescent lamp 201 according to a sixteenth embodiment of the present invention.
- the fluorescent lamp 201 has a double tube-shaped arc tube comprising a substantially annular inner annular bulb 202 a and an outer annular bulb 202 b having substantially the same straight line portion and different maximum ring diameters. Has two.
- the annular glass bulbs 202 a and 202 b are connected by a communication pipe 202 c as a connecting part so as to communicate with each other at a desired position on one end of the NOREV.
- the connecting pipe 202c is formed by welding and connecting tubular bodies projecting from one end of each of the valves 202a and 202b by blowing.
- the communication pipe 202c is formed at a distance of 2 to 15 mm from one end of each of the bulbs 202a and 202b so that a space where no discharge is formed is provided.
- Each of the annular glass bulbs 202 a and 202 b has four straight pipe portions S and three bent portions C, and the four straight pipe portions S form substantially square sides. Are arranged in the same plane.
- the length L a of one side of the inner annular valve 202 a should be at least 20 O mm
- the length L b of one side of the outer annular valve 202 b should be at least 25 O mm.
- & & is about 250 111 1 1 and Lb is about 300 mm.
- the outer diameter of the straight pipe section S is 12 to 20 mm
- the wall thickness is 0.8 to 1.5 mm
- the inner diameter of the pipe is about 14 mm
- the wall thickness is about 1 mm. 2 mm.
- FIG. 19 is an enlarged front view showing a part of the bent portion C. As shown in Fig.
- the inner annular valve of small size 202a has a radius of curvature r1a of the inner surface C1a
- the outer surface has a radius of curvature r2a of C2a
- the outer annular valve of a large size The bent portion C is formed such that the respective center points of the radius of curvature r 1 b of the inner surface C lb and the radius of curvature r 2 b of the outer surface C 2 b of the inner surface C lb of the outer surface C 2 b are located at substantially the same point O
- the annular bulbs 202 a and 202 b are connected to form an arc tube 202.
- the interval Wc between the adjacent bent portions C can be made substantially equal to the interval Ws between the straight pipe portions S.
- the appearance of the fluorescent lamp 201 is improved.
- a cushioning material such as a silicone resin may be attached to the gap between the annular valves 202a and 202b to improve the strength of the annular valves 202a and 202b.
- the dimensions of the gaps W s and Wc at this time should be within the range of 5.0 to 10.0 mm from the viewpoint of the light emission efficiency of the arc tube 202 or the difficulty of manufacturing the communication tube 202 c. Is preferred.
- the bent portion C is formed by bending a straight tubular valve and then molding.
- the inner surfaces C1a and C1b of the bent portion C mean surfaces facing the center of a virtual annular plane formed by the annular valves 202a and 202b, and the outer surface C2a of the bent portion.
- C 2 b is 180 from the inner surface C 1 a, C 1 b at the bent portion C around the pipe axis. It means the surface located on the opposite side (the surface that faces in the direction parallel to and radiates from the center of the annular plane formed by the annular valves 202a and 202b).
- the radius of curvature rla, rib, r2a, r2b is such that the inner surface C1a, C1b and the outer surface C2a, C2b are orthogonal to the virtual annular plane formed by the annular valve 202. It is defined by the curve formed at the position, and in a simplified manner, when the annular valve is observed from the direction orthogonal to the virtual annular plane formed by the annular valves 202a and 202b, the bent portion C is formed. It is possible to define each by the radius of curvature of the contour line.
- the optimal range of the radius of curvature r 1 a is 13 to 20 mm
- the optimal range of the radius of curvature r 2 a is 25 to 45 mm
- the optimal range of the radius of curvature r 2 b is 30 to 55 mm.
- the optimal range of the radius of curvature r2b is 45-70 mm.
- the radius of curvature r 1 a is 15 mm
- the radius of curvature r 2 a is 31.5 mm
- the radius of curvature r 1 b is 4 Omm
- the radius of curvature r 1 b is 56.5 mm. .
- the pipe diameter Dc of the bent portion C is formed to be substantially the same as the pipe diameter Ds of the adjacent straight pipe portion 202b.
- the appearance of the bent portion C of the annular valves 202a and 202b can be visually recognized as being formed as a continuous curve from the straight pipe portion S.
- the appearance of the fluorescent lamp 201 is improved, and a portion having a low temperature is not formed locally when the lamp is lit. Therefore, it is difficult to form the coldest portion, and blackening and spots due to the condensed mercury occur at the bent portion C. It becomes difficult.
- the pipe diameter Dc of the bent portion C and the pipe diameter Ds of the straight pipe portion 202b are both 16.5 mm.
- the length 1 of the straight pipe section S is 237 mm.
- a single tubular valve having a protective film and a phosphor layer formed in advance is prepared, one end is sealed, and the other end is provided with an exhaust pipe, and a flare for introducing a pair of lead wires is provided. Attach the electrodes into the straight valve via the stem (not shown).
- the straight tubular valve has a total length of 1200 to 1500 mm and has three bent portions.
- the length of one portion of this scheduled portion is about 90 mm, and the total length of the three scheduled portions 202 e is 270 mm, which is approximately 18 to 30 mm of the total length of the straight tubular valve 202 a. 23%.
- the portion where the bent portion is to be formed is heated and softened with a gas burner, and the angle between the straight tubes S is about 90 °. After bending to form, three bends are formed in a predetermined shape by molding or the like. Then, a desired position on one end side of the glass bulbs 202 a and 202 b is blown out to form a tubular body in a protruding manner, and are welded and connected to each other to form a connecting pipe 2 c. Then, air is exhausted from the exhaust pipe, and mercury is sealed therein to complete the double-ringed arc tube 202.
- the annular bulbs 202a and 202b are communicated with each other through the communication tube 202c, so that one circumference is substantially square between the pair of electrodes 205 and 205.
- a single discharge path in the form of a double ring is formed.
- the bent portion C is formed by bending, but since there is no need to heat the portion other than the portion where the straight tube bulb is to be formed, the phosphor layer is applied even before the bent portion C is formed. It has the advantage that the light body is hardly thermally degraded and the luminous flux maintenance rate is greatly improved. This effect is particularly remarkable when the total length of the portion where the bent portion is to be formed is 50% or less, preferably 30% or less, and optimally 20% or less with respect to the entire length of the straight tubular valve. Next, the operation of the present embodiment will be described. High-frequency power is input to the fluorescent lamp 201 from the base 206, and the fluorescent lamp 201 is turned on by low-pressure mercury vapor discharge in the glass bulb 202.
- the fluorescent lamp 201 is lit so that the lamp input power is 40 W or more, the lamp current is 200 mA or more, the tube wall load is 0.05 W / cm 2 or more, and the lamp efficiency is 501 m / W or more. Also, lamp current density is straight tube portion 20 2 b cross Me per area lamp current is 7 5 mAZc m 2 or more. In the case of the present embodiment, the lamp input power is 60 W, the lamp current is 380 mA, and the lamp efficiency is 901 mZW.
- the fluorescent lamp 201 When the fluorescent lamp 201 is turned on, the temperature of the bulb 202 rises to about 80 ° C. However, the fluorescent lamp 201 is optimal because the end portion side of the communicating portion 202 c is a non-discharge forming region. Since the coldest part of the temperature is formed, the mercury vapor pressure in the valves 202a and 202b is appropriate. It becomes possible to light with high lamp efficiency.
- the length 1 of the straight tube portion S was set to 150 to 500 mm, and the inner surface of the bending portion C was determined. It has been found that it is desirable that the radii of curvature r 1 (rla and rib) of C 1a and C 1b be in the range of 0.03 ⁇ rl / l ⁇ 0.3. In the case where the length 1 of the straight pipe portion S is 150 to 50 Omm, if the ratio r1 / 1 of the radius of curvature r1 to the length 1 of the straight pipe portion S is less than 0.03, bending is performed.
- the length 1 of the straight pipe portion S of the annular bulbs 2a and 2b is 237 mm in the range of 150 to 500 mm, and the inner annular bulb 2
- the radius of curvature r 1 a of the inner surface C 1 a is 15 mm
- the radius of curvature r 1 b of the inner surface C 1 b is 40 mm, so that r 1 a / 1 is approximately 0. 06, 3: 1 13/1 is approximately 0.16, and both satisfy the relationship of 0.03 r lZl ⁇ 0.3.
- the radii of curvature rla, rlb, r2a, r2b of the inner surface CIa, C1b and the outer surface C2a, C2b of the bent portion C are provided. Since the center O of each is substantially at the same position and the pipe diameter Dc of the bent section C is substantially the same as the pipe diameter Ds of the straight pipe section S, the annular valves 202 a and 202 b The appearance of the bent portion C is visually perceived as being formed by drawing a continuous curve from the straight tube portion S, and the appearance of the arc tube 202 is improved.
- the interval Wc between adjacent bent portions can be made substantially the same as the interval Ws between straight pipe portions, so that a plurality of annular valves are used in the same manner so that the inner surfaces of the bent portions have the same radius of curvature.
- the appearance can be improved and the brightness can be made uniform as compared with the case where the combination is used.
- the radii of curvature r 1 (rla and rib) of the inner surfaces C 1 a and C 1 b of the bent portion C are set.
- r 1 radii of curvature r 1 (rla and rib) of the inner surfaces C 1 a and C 1 b of the bent portion C.
- FIG. 20 is a front view showing a fluorescent lamp 201A according to a seventeenth embodiment of the present invention.
- the base 206 is positioned substantially at the center of one side of the substantially square shape. This embodiment is the same as the sixteenth embodiment shown in FIG.
- Each of the annular glass bulbs 202a and 202b has five straight pipe portions S and four bent portions C, respectively.
- the base 206 is bridged between both ends of each of the annular valves 202 a and 202 b which are opposed to each other so that their pipe axes are located substantially on the same line, and have a substantially square shape. It is located approximately at the center of one side of the bulbs 202a and 202b.
- the inner and outer pulp locally heats only a portion to be bent of one long straight tubular valve in which a phosphor film or the like is previously formed on the inner surface, or the tip of a plurality of straight tubular bulbs is connected.
- a phosphor film or the like is previously formed on the inner surface, or the tip of a plurality of straight tubular bulbs is connected.
- the distortion of the entire inner and outer valves is already low as described above. Can be enhanced.
- the discharge path length is increased by connecting the discharge path lengths inside the inner and outer bulbs by the connection part to form a single discharge path, so that both the total luminous flux and the lamp efficiency are improved. be able to.
- the distance between one of the pair of electrodes and the second electrode is shorter than the distance between the pair of electrodes, the distance between the pair of first electrodes of the arc tube is reduced.
- a discharge is generated between the first and second electrodes of the bulb before a discharge is generated to turn on the fluorescent lamp, and then a discharge is generated between the pair of first electrodes of the arc tube.
- the starting voltage of the arc tube is reduced.
- the fluorescent lamp is dimmed by generating a main discharge only between the first and second electrodes of the bulb and lighting the bulb.
- the bent portion is formed.
- the distance between adjacent bent parts can be made approximately the same as the distance between straight pipe parts as compared to a case where a plurality of fluorescent lamps formed so that the curvature radii are the same are similarly arranged.
- the appearance can be improved and the luminance can be made uniform.
Landscapes
- Vessels And Coating Films For Discharge Lamps (AREA)
- Discharge Lamps And Accessories Thereof (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2003284644A AU2003284644A1 (en) | 2002-11-22 | 2003-11-21 | Fluorescent lamp and luminaire |
US10/535,824 US7443092B2 (en) | 2002-11-22 | 2003-11-21 | Fluorescent lamp including a multi-ringed bulb |
JP2005510286A JPWO2004049388A1 (ja) | 2002-11-22 | 2003-11-21 | 蛍光ランプおよび照明器具 |
EP03774160A EP1580796B1 (en) | 2002-11-22 | 2003-11-21 | Fluorescent lamp and luminaire |
AT03774160T ATE455364T1 (de) | 2002-11-22 | 2003-11-21 | Fluoreszenzlampe und beleuchtungseinrichtung |
DE60331003T DE60331003D1 (de) | 2002-11-22 | 2003-11-21 | Fluoreszenzlampe und beleuchtungseinrichtung |
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002-339912 | 2002-11-22 | ||
JP2002339912 | 2002-11-22 | ||
JP2003168924 | 2003-06-13 | ||
JP2003-168924 | 2003-06-13 | ||
JP2003-273092 | 2003-07-10 | ||
JP2003273092 | 2003-07-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004049388A1 true WO2004049388A1 (ja) | 2004-06-10 |
Family
ID=32397742
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2003/014947 WO2004049388A1 (ja) | 2002-11-22 | 2003-11-21 | 蛍光ランプおよび照明器具 |
Country Status (8)
Country | Link |
---|---|
US (1) | US7443092B2 (ja) |
EP (1) | EP1580796B1 (ja) |
JP (1) | JPWO2004049388A1 (ja) |
KR (1) | KR100718959B1 (ja) |
AT (1) | ATE455364T1 (ja) |
AU (1) | AU2003284644A1 (ja) |
DE (1) | DE60331003D1 (ja) |
WO (1) | WO2004049388A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1635377A2 (en) * | 2004-05-13 | 2006-03-15 | Toshiba Lighting & Technology Corporation | Multi-ringed fluorescent lamps and lighting apparatuses utilizing same |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006049280A (ja) * | 2004-06-29 | 2006-02-16 | Matsushita Electric Ind Co Ltd | 蛍光ランプ |
CN100581313C (zh) * | 2005-05-19 | 2010-01-13 | 光宝科技股份有限公司 | 冷阴极灯管电路驱动方法及装置以及相关的电子装置 |
KR100904763B1 (ko) | 2007-11-30 | 2009-06-29 | 조종완 | 자유곡선형 형광램프 |
IT1399507B1 (it) * | 2010-04-21 | 2013-04-19 | Getters Spa | Lampada a scarica migliorata |
Citations (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58103760A (ja) * | 1981-12-16 | 1983-06-20 | Mitsubishi Electric Corp | けい光ランプ |
JPS58152366A (ja) * | 1982-03-05 | 1983-09-09 | Mitsubishi Electric Corp | 角形けい光ランプ |
JPS5920959A (ja) * | 1982-07-28 | 1984-02-02 | Toshiba Corp | 曲管形「け」光ランプ |
US4458301A (en) * | 1981-01-27 | 1984-07-03 | Thorn Emi Plc | Discharge lamps with curved sections and central connections |
JPS61126733A (ja) * | 1984-11-26 | 1986-06-14 | Hitachi Ltd | 環形螢光ランプの製造方法 |
JPS62133663A (ja) * | 1985-12-04 | 1987-06-16 | Hitachi Ltd | 蛍光ランプ |
JPS63164158U (ja) * | 1987-04-15 | 1988-10-26 | ||
JPH023649U (ja) * | 1988-06-20 | 1990-01-11 | ||
US5034655A (en) | 1988-08-26 | 1991-07-23 | Hitachi, Ltd. | Circular fluorescent lamp |
JPH06187948A (ja) * | 1992-12-15 | 1994-07-08 | Nec Home Electron Ltd | ラピッドスタート形蛍光ランプ |
JPH08273607A (ja) * | 1995-03-31 | 1996-10-18 | Toshiba Lighting & Technol Corp | 環形蛍光ランプおよび照明器具 |
JPH09320525A (ja) * | 1996-06-04 | 1997-12-12 | Hitachi Ltd | 環形蛍光ランプ |
JPH1092383A (ja) * | 1996-09-19 | 1998-04-10 | Hitachi Lighting Ltd | 環状蛍光ランプ |
JP2000348677A (ja) * | 1999-06-02 | 2000-12-15 | Hitachi Lighting Ltd | 蛍光ランプ |
EP1160829A1 (en) | 2000-06-01 | 2001-12-05 | General Electric Company | Fluorescent lamp with discharge tube bent substantially in a plane |
JP2001345065A (ja) * | 2000-03-31 | 2001-12-14 | Toshiba Lighting & Technology Corp | 環形蛍光ランプおよび照明器具 |
JP2002170526A (ja) * | 2000-11-29 | 2002-06-14 | Nec Lighting Ltd | 環形蛍光ランプおよび照明器具 |
JP2002245808A (ja) * | 2001-12-25 | 2002-08-30 | Toshiba Lighting & Technology Corp | 環形蛍光ランプおよび照明器具 |
Family Cites Families (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4337414A (en) * | 1979-11-26 | 1982-06-29 | Westinghouse Electric Corp. | Compact fluorescent lamp having convoluted tubular envelope of tridimensional configuration, method of making such envelope, and lighting unit incorporating such lamp |
JPS63164158A (ja) * | 1986-12-26 | 1988-07-07 | Nippon Carbide Ind Co Ltd | 乾電池用外装ラベル |
JPH023649A (ja) | 1988-06-17 | 1990-01-09 | Hodogaya Chem Co Ltd | 置換イミノベンジル誘導体 |
US5220249A (en) * | 1990-10-08 | 1993-06-15 | Nec Corporation | Flat type fluorescent lamp and method of lighting |
KR930008163B1 (ko) * | 1991-04-02 | 1993-08-26 | 삼성전관 주식회사 | 방전관 |
US5723939A (en) * | 1994-12-28 | 1998-03-03 | Matsushita Electronics Corporation | Circular fluorescent lamp |
JP3135492B2 (ja) * | 1995-11-01 | 2001-02-13 | 松下電子工業株式会社 | 環形蛍光ランプ |
US5731659A (en) * | 1996-05-13 | 1998-03-24 | General Electric Company | Fluorescent lamp with phosphor coating of multiple layers |
JP3642121B2 (ja) * | 1996-08-30 | 2005-04-27 | 東芝ライテック株式会社 | 蛍光ランプおよび照明器具 |
JP3219044B2 (ja) * | 1997-03-31 | 2001-10-15 | 松下電器産業株式会社 | 環形蛍光ランプ |
DE19829270B4 (de) | 1997-07-02 | 2006-03-16 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Lampe |
JPH11203934A (ja) * | 1998-01-13 | 1999-07-30 | Hitachi Ltd | 蛍光ランプ |
JPH11233066A (ja) * | 1998-02-12 | 1999-08-27 | Toshiba Lighting & Technology Corp | 多重管形蛍光ランプおよび照明装置 |
JP2000149876A (ja) * | 1998-11-06 | 2000-05-30 | Matsushita Electronics Industry Corp | 低圧水銀蒸気放電ランプ |
US6118217A (en) * | 1999-03-10 | 2000-09-12 | General Electric Company | Additional electrode for three-level output and improved starting of compact fluorescent lamp systems |
US7285899B2 (en) * | 2002-08-30 | 2007-10-23 | Toshiba Lighting & Technology Corporation | Fluorescent lamp having bent portions and its manufacturing method, and illuminating apparatus including the lamp |
GB2412489B (en) * | 2004-03-26 | 2006-07-05 | Bright Group Pty Ltd | Cold cathode fluorescent lamp |
JP2005353574A (ja) * | 2004-05-13 | 2005-12-22 | Toshiba Lighting & Technology Corp | 多重環形蛍光ランプおよび照明装置 |
US20120180494A1 (en) * | 2011-01-14 | 2012-07-19 | General Electric Company | Turbine fuel nozzle assembly |
KR101397027B1 (ko) * | 2012-09-11 | 2014-06-27 | 삼성에스디아이 주식회사 | 배터리 팩 |
-
2003
- 2003-11-21 KR KR1020057009117A patent/KR100718959B1/ko not_active IP Right Cessation
- 2003-11-21 AT AT03774160T patent/ATE455364T1/de not_active IP Right Cessation
- 2003-11-21 EP EP03774160A patent/EP1580796B1/en not_active Expired - Lifetime
- 2003-11-21 WO PCT/JP2003/014947 patent/WO2004049388A1/ja active Application Filing
- 2003-11-21 AU AU2003284644A patent/AU2003284644A1/en not_active Abandoned
- 2003-11-21 US US10/535,824 patent/US7443092B2/en not_active Expired - Fee Related
- 2003-11-21 DE DE60331003T patent/DE60331003D1/de not_active Expired - Lifetime
- 2003-11-21 JP JP2005510286A patent/JPWO2004049388A1/ja active Pending
Patent Citations (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4458301A (en) * | 1981-01-27 | 1984-07-03 | Thorn Emi Plc | Discharge lamps with curved sections and central connections |
JPS58103760A (ja) * | 1981-12-16 | 1983-06-20 | Mitsubishi Electric Corp | けい光ランプ |
JPS58152366A (ja) * | 1982-03-05 | 1983-09-09 | Mitsubishi Electric Corp | 角形けい光ランプ |
JPS5920959A (ja) * | 1982-07-28 | 1984-02-02 | Toshiba Corp | 曲管形「け」光ランプ |
JPS61126733A (ja) * | 1984-11-26 | 1986-06-14 | Hitachi Ltd | 環形螢光ランプの製造方法 |
JPS62133663A (ja) * | 1985-12-04 | 1987-06-16 | Hitachi Ltd | 蛍光ランプ |
JPS63164158U (ja) * | 1987-04-15 | 1988-10-26 | ||
JPH023649U (ja) * | 1988-06-20 | 1990-01-11 | ||
US5034655A (en) | 1988-08-26 | 1991-07-23 | Hitachi, Ltd. | Circular fluorescent lamp |
JPH06187948A (ja) * | 1992-12-15 | 1994-07-08 | Nec Home Electron Ltd | ラピッドスタート形蛍光ランプ |
JPH08273607A (ja) * | 1995-03-31 | 1996-10-18 | Toshiba Lighting & Technol Corp | 環形蛍光ランプおよび照明器具 |
JPH09320525A (ja) * | 1996-06-04 | 1997-12-12 | Hitachi Ltd | 環形蛍光ランプ |
JPH1092383A (ja) * | 1996-09-19 | 1998-04-10 | Hitachi Lighting Ltd | 環状蛍光ランプ |
JP2000348677A (ja) * | 1999-06-02 | 2000-12-15 | Hitachi Lighting Ltd | 蛍光ランプ |
JP2001345065A (ja) * | 2000-03-31 | 2001-12-14 | Toshiba Lighting & Technology Corp | 環形蛍光ランプおよび照明器具 |
EP1160829A1 (en) | 2000-06-01 | 2001-12-05 | General Electric Company | Fluorescent lamp with discharge tube bent substantially in a plane |
JP2002170526A (ja) * | 2000-11-29 | 2002-06-14 | Nec Lighting Ltd | 環形蛍光ランプおよび照明器具 |
JP2002245808A (ja) * | 2001-12-25 | 2002-08-30 | Toshiba Lighting & Technology Corp | 環形蛍光ランプおよび照明器具 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1635377A2 (en) * | 2004-05-13 | 2006-03-15 | Toshiba Lighting & Technology Corporation | Multi-ringed fluorescent lamps and lighting apparatuses utilizing same |
EP1635377A3 (en) * | 2004-05-13 | 2008-02-13 | Toshiba Lighting & Technology Corporation | Multi-ringed fluorescent lamps and lighting apparatuses utilizing same |
Also Published As
Publication number | Publication date |
---|---|
US20060071601A1 (en) | 2006-04-06 |
KR20050059340A (ko) | 2005-06-17 |
KR100718959B1 (ko) | 2007-05-16 |
ATE455364T1 (de) | 2010-01-15 |
US7443092B2 (en) | 2008-10-28 |
AU2003284644A1 (en) | 2004-06-18 |
JPWO2004049388A1 (ja) | 2006-03-30 |
EP1580796A1 (en) | 2005-09-28 |
EP1580796A4 (en) | 2007-05-09 |
DE60331003D1 (de) | 2010-03-04 |
EP1580796B1 (en) | 2010-01-13 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP4287389B2 (ja) | 蛍光ランプ | |
JPH09320526A (ja) | 環形蛍光ランプおよび照明器具 | |
CA2555925A1 (en) | Gas discharge fluorescent device with lamp support | |
WO2004021396A1 (ja) | 蛍光ランプおよびその製造方法、並びに照明器具 | |
JP2005353574A (ja) | 多重環形蛍光ランプおよび照明装置 | |
WO2004049388A1 (ja) | 蛍光ランプおよび照明器具 | |
JP3478369B2 (ja) | 環形蛍光ランプおよび照明器具 | |
JP4820430B2 (ja) | 放電ランプおよび照明装置 | |
JP2010056031A (ja) | 高圧放電ランプおよび照明装置 | |
JP2791304B2 (ja) | 環形蛍光ランプ | |
JP4304605B2 (ja) | 電球形蛍光ランプおよび照明装置 | |
JPH10302719A (ja) | 蛍光ランプ,蛍光ランプ装置および照明装置 | |
JP2002245808A (ja) | 環形蛍光ランプおよび照明器具 | |
JPH08236074A (ja) | 環形蛍光ランプ | |
JP2004146359A (ja) | 蛍光ランプおよび照明器具 | |
JP2008300241A (ja) | 蛍光灯 | |
JP2004186076A (ja) | 蛍光ランプおよび照明器具 | |
JP2001345065A (ja) | 環形蛍光ランプおよび照明器具 | |
JP2003203607A (ja) | 蛍光ランプおよび電球形蛍光ランプ | |
JP2003217506A (ja) | 蛍光ランプ及び照明装置 | |
JP2004146385A (ja) | 蛍光ランプおよび照明器具 | |
JP3206746B2 (ja) | 環形蛍光ランプおよび照明器具 | |
JP2005243527A (ja) | 蛍光ランプおよび照明器具 | |
JP2006004718A (ja) | 蛍光ランプ、コンパクト蛍光ランプおよび電球形蛍光ランプ | |
JP2000106134A (ja) | 蛍光ランプおよび電球形蛍光ランプ |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): BW GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 2005510286 Country of ref document: JP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2003774160 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1020057009117 Country of ref document: KR |
|
ENP | Entry into the national phase |
Ref document number: 2006071601 Country of ref document: US Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 10535824 Country of ref document: US |
|
WWP | Wipo information: published in national office |
Ref document number: 1020057009117 Country of ref document: KR |
|
WWE | Wipo information: entry into national phase |
Ref document number: 20038A91421 Country of ref document: CN |
|
WWP | Wipo information: published in national office |
Ref document number: 2003774160 Country of ref document: EP |
|
WWP | Wipo information: published in national office |
Ref document number: 10535824 Country of ref document: US |