WO2003039209A1 - Circuit d'alimentation en puissance d'utilisation pour un tube a decharge flash - Google Patents
Circuit d'alimentation en puissance d'utilisation pour un tube a decharge flash Download PDFInfo
- Publication number
- WO2003039209A1 WO2003039209A1 PCT/JP2002/011300 JP0211300W WO03039209A1 WO 2003039209 A1 WO2003039209 A1 WO 2003039209A1 JP 0211300 W JP0211300 W JP 0211300W WO 03039209 A1 WO03039209 A1 WO 03039209A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- discharge tube
- charge
- flash discharge
- diode
- power supply
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
- H05B41/14—Circuit arrangements
- H05B41/30—Circuit arrangements in which the lamp is fed by pulses, e.g. flash lamp
- H05B41/34—Circuit arrangements in which the lamp is fed by pulses, e.g. flash lamp to provide a sequence of flashes
Definitions
- the present invention relates to a flash discharge tube power supply circuit used to emit a flash discharge tube such as a xenon flash lamp.
- a flash discharge tube represented by a xenon flash lamp has a spectral characteristic of output light similar to that of sunlight, and can stably obtain a flash with a very short duration of emission. It is widely used as a light source for camera flash lamps and high-speed shirt camera lamps.
- Such a flash discharge tube is filled with a rare gas such as xenon, and a high-voltage pulse current is applied to a trigger electrode arranged in the discharge tube to partially cause insulation rupture and flow current.
- a path is formed, and the charge for main discharge flows from the cathode to the anode along this path, causing the ionized noble gas to emit light by arc emission and emit light to the outside.
- the required amount of electricity is usually stored in advance in the main discharge capacitor, and the main discharge capacitor is used during light emission.
- a method of supplying current from a sensor is employed.
- the power supply circuit is equipped with a surge current diode with the anode of the flash discharge tube connected to the anode and the cathode connected to the anode.
- the energy stored in the power supply and residual inductance in the circuit is led as a surge current to a circuit consisting of a surge current diode and a flash discharge tube, and consumes this energy, resulting in excess energy. The accumulation is suppressed.
- Some flash discharge tubes emit light with a large power of, for example, 150 bits. According to this, at the moment of light emission, the discharge condenser discharges the light to the flash discharge tube, for example, from 100 to 150 A large ampere current flows. As a result, the energy stored in the residual inductance also increases, so that the surge current also becomes a large current of, for example, 100 amperes.As a result, the surge current diode generates heat, breaks down, and reduces reliability. And the failure rate increases. Increasing the permissible current of the surge current diode can prevent the surge current diode from generating heat even if the surge current is excessive. However, this leads to a larger diode for surge current and, consequently, a larger power supply circuit.
- a power supply circuit for a flash discharge tube includes: , A surge circuit composed of a first resistor and a diode connected in series is provided between the cathode and anode of the flash discharge tube in parallel with the charge / discharge capacitor. The force side is connected to the anode side of the tube.
- a current value flowing through the diode can be reduced. Effective for protection.
- a transformer is provided between the charging / discharging capacitor and the power supply and boosts the supply voltage to the charging / discharging capacitor.
- a switching element or a second resistor is provided in a circuit formed by the transformer and the charging / discharging capacitor. They may be connected in series. When a switching element is used, it is necessary to control to ON while the charging / discharging capacitor is being charged, and to OFF otherwise.
- the transformer When charging the charge / discharge capacitor via a transformer in this way, When a current occurs, part of the surge current may flow into the transformer, and the inflow of large current may cause heat generation and damage to the transformer.
- the transformer By providing only the switching element as described above and connecting the transformer and the charging / discharging capacitor only during charging of the charging / discharging capacitor, the transformer can be disconnected from the surge circuit when a surge current occurs. Does not flow. Also, when only the second resistor is provided, the surge current flowing through the transformer can be reduced. Furthermore, if both are connected in parallel, quick charging is possible, but the effect of reducing the surge current flowing through the transformer can be obtained.
- FIG. 1 is a circuit diagram showing a configuration of a flash discharge tube device including a flash discharge tube power supply circuit according to a first embodiment of the present invention.
- 2A to 2C are time charts showing time changes of the voltage applied to the flash discharge tube, the discharge current flowing through the flash discharge tube, and the current flowing through the surge current diode in the apparatus of FIG. It is.
- FIG. 3 is a circuit diagram showing a configuration of a comparative example of the flash tube device.
- 4A to 4D show the time of the voltage applied to the flash discharge tube, the discharge current flowing through the flash discharge tube, the current flowing through the surge current diode, and the current flowing through the transformer in the device of FIG. It is a time chart which shows a change.
- FIGS. 5 to 9 are circuit diagrams respectively showing the configuration of a flash discharge tube device including the second to sixth embodiments of the flash discharge tube power supply circuit according to the present invention.
- FIG. 1 is a circuit diagram showing a configuration of a flash discharge tube device 1 including a flash discharge tube power supply circuit according to a first embodiment of the present invention.
- This flash discharge tube device 1 is a flash discharge device according to the present embodiment.
- a power supply for a discharge tube, a circuit 3, a flash discharge tube 5, and a light emission trigger circuit 7 are provided.
- the flash discharge tube 5 is a gas discharge tube filled with a rare gas, and is, for example, a xenon flash lamp.
- the flash discharge tube 5 includes a cylindrical glass container 9 and an anode 11, a cathode 13, and a trigger electrode 15 arranged in the container 9. Xenon gas is sealed in the glass container 9.
- the anode 11 and the cathode 13 of the flash discharge tube 5 are connected to a charge / discharge capacitor 17.
- the power supply circuit 3 for the flash discharge tube is provided with a diode 19 for surge current, and the power source K of the diode 19 for surge current is connected to the anode 11 of the flash tube 5 and the anode of the diode 19 for surge current.
- A is connected to the cathode 13 of the flash discharge tube 5 via the diode protection resistor 21.
- the energy accumulated in the residual inductance due to the light emission of the flash discharge tube 5 flows through a series circuit composed of the flash discharge tube 5, the surge current diode 19 and the diode protection resistor 21 as surge current.
- the consumption prevents the accumulation.
- the surge current flows through the diode 19 for surge current by flowing the surge current through the resistor 21 for diode protection by connecting the diode 19 for surge current and the resistor 21 for diode protection in series. Surge current Is reduced.
- the flash tube 5, charge / discharge capacitor 17, surge current diode 19, and diode protection resistor 21 are interconnected by electric wires or printed circuit board wiring.
- the anode 11 of the flash discharge tube 5, the cathode of the surge current diode 19, and one electrode of the charge / discharge capacitor 17 are connected to the power source of the rectifier diode 35, respectively.
- the anode of the rectifier diode 35 is connected to one end of the secondary coil 27 of the transformer 23 of the flash discharge tube power supply circuit 3.
- the secondary coil 27 is composed of a first coil section 31 and a second coil section 33 connected in series, and one end of the first coil section 31 (that is, one end of the secondary coil 27). End) and the anode of the rectifier diode 35 are connected.
- the other end of the first coil unit 31 is connected to the power source of the rectifier diode 41 via a switching element 37 and a transformer protection resistor 39 connected in parallel with each other. Due to the rectifier diode 41 and the rectifier diode 35 described above, the current generated by the voltage generated in the transformer 23 flows in only one direction.
- the switching element 37 and the transformer protection resistor 39 can reduce the peak value of the surge current, which is the reverse current flowing through the transformer 23, when a surge current is generated.
- the switching element 37 is, for example, a semiconductor switch (a thyristor, a field effect transistor, a bipolar transistor, an IGBT, etc.).
- the metal clad wire resistor for electric power is suitable as the resistor of the present embodiment because of excellent heat dissipation of the heat generated by the resistor.
- the anode of the rectifier diode 41 is connected to one end of the second coil part 33.
- the other end of the second coil part 33 is the cathode 13 of the flash discharge tube 5 Protection resistor 21 and the other electrode of the charging / discharging capacitor 17.
- the secondary coil 27 of the transformer 23 is electromagnetically coupled to the primary coil 25 via the core 29.
- the primary coil 25 is connected to a transformer driving circuit (not shown).
- the flash discharge tube 5 emits light with a large power, for example, 150 bits. In order to shorten the light emission interval, it is necessary to shorten the charging time of the charge / discharge capacitor 17, which requires a large current to be supplied.Therefore, a high voltage is generated by the transformer 23 to charge and discharge. The capacitor 17 is being charged.
- FIGS. 1 and 2A to 2C are time charts for explaining the operation of the device 1.
- Fig. 2A shows the voltage applied to the anode 11 of the flash discharge tube 5
- Fig. 2B shows the discharge current flowing through the flash discharge tube 5
- Fig. 2C shows the current (surge current) flowing through the surge current diode 19. Time changes are shown respectively.
- the rising time in the upper right direction of the waveform shown in FIG. 2A indicates the charge time (CT) of the charge / discharge capacitor 17.
- the switching element 37 is turned on, and charging of the charge / discharge capacitor 17 is started by the voltage generated by the transformer 23, that is, charge accumulation in the charge / discharge capacitor 17 is started. This is the start of the charging time (CT).
- CT charging time
- the current generated by the voltage transformed by the transformer 23 mainly flows through the switching element 37 to the charge / discharge capacitor 17. Therefore, even if the transformer protection resistor 39 is connected to the secondary coil 27, the charge / discharge capacitor 17 can be charged at high speed.
- the switching element 37 After charging the charge / discharge capacitor 17 to the rated voltage (VI), that is, after the end of the charging time (CT), the switching element 37 is turned off. Even if the switching element 37 is turned off, the first coil part 31 and the second coil part 33 of the secondary coil 27 are connected via the transformer protection resistor 39, so that Can be said. If the period from the end of charging of the charge / discharge capacitor 17 to the emission of the flash discharge tube 5 is long, the voltage drop of the charge / discharge capacitor 17 due to the spontaneous discharge of the charge / discharge capacitor 17 will increase. When the flash discharge tube 5 emits light with this reduced voltage, the emission intensity becomes weak and abnormal light emission occurs.
- a transformer protection resistor 3 is connected to a circuit in which the discharge capacitor 5 and the transformer 23 are connected in series. 9 is connected, the voltage generated by the transformer 23 can be applied to the charge / discharge capacitor 17 even when the switching element 37 is off, and thus the charge / discharge capacitor 17 naturally discharges. It is possible to charge to replenish the minute voltage.
- the voltage on both the anode 11 side and the cathode 13 side should be 0 volt, but the energy accumulated in the residual inductance existing in the flash tube device 1 causes the cathode 13 side Is higher than the voltage on the anode 11 side.
- surge current is supplied to the circuit that connects the flash discharge tube 5 and the surge current diode 19 in series via the surge current diode 19 connected in the forward direction during this condition. Shed. The above is one cycle of light emission, and the light emission operation is similarly repeated thereafter.
- the resistance value (for example, 50 ohm) of the diode protection resistor 21 is determined in consideration of these.
- FIG. 3 is a circuit diagram showing a configuration of a flash discharge tube device including a flash discharge tube power supply circuit 4 as a comparative example.
- the power supply circuit 4 for the flash discharge tube shown in FIG. 3 is different from the power supply circuit 3 for the flash discharge tube shown in FIG. That is not.
- 4A to 4D are time charts relating to the operation of the flash discharge device according to the comparative example.
- FIG. 4A corresponds to FIG. 2A and is a time chart of the voltage applied to the anode 11 of the flash discharge tube 5.
- FIG. 4B corresponds to FIG. 2B and is a time chart of the discharge current flowing through the flash discharge tube 5.
- Fig. 4C corresponds to Fig. 2C, and is a time chart of the current flowing through the diode 19 for surge current.
- FIG. 4D is a time chart of the current flowing through the secondary coil 27 of the transformer 23 shown in FIG.
- the peak value of the surge current is A2, and FIG.
- the peak value of the surge current is A3.
- the current value A2 in FIG. 2C and the current value A2 in FIG. 4C are the same value
- the current value A3 in FIG. 2C and the current value A3 in FIG. 4C are the same value.
- the diode protection resistor 21 is connected in series to the surge current diode 19, the peak value of the surge current is smaller than that of the comparative example. .
- FIG. 4D Comparative Example
- a surge current generated after the flash tube 5 emits light flows through the secondary coil 27 of the transformer 23.
- the switching element 37 is turned off and the resistance value of the transformer protection resistor 39 is large enough not to pass the surge current.
- the secondary coil 27 can be prevented. Note that, in the present embodiment, a surge current does not flow through the secondary coil 27, so that a graphical illustration is omitted.
- the surge voltage does not flow through the transformer 23 in the present embodiment, so that the abnormal voltage does not occur. As a result, occurrence of abnormal light emission can be prevented. Also, comparing FIG. 2B (this embodiment) and FIG. 4B (comparative example), the peak value of the discharge current flowing through the flash discharge tube 5 is the same value (A1), and according to this embodiment, The same peak value of the discharge current as in the comparative example can be obtained.
- FIG. 5 is a circuit diagram showing a configuration of a flash discharge tube device including a flash discharge tube power supply circuit according to a second embodiment of the present invention.
- the power supply circuit 3A for the flash discharge tube in Fig. 5 is different from the power supply circuit 3 for the flash discharge tube in Fig. 1 in that the switching element 37 and the transformer protection resistor 3 in which the rectifying diodes 35 are connected in parallel with each other 9 to connect the charge / discharge capacitor 17, the power source of the surge current diode 19 and the anode 11 of the flash discharge tube 5, and rectify the first coil part 31 and the second coil part 33. That is, they are connected in series via the condenser 41. That is, a parallel connection circuit of the switching element 37 and the transformer protection resistor 39 is arranged on the high voltage side of the transformer 23.
- FIG. 6 is a circuit diagram showing a configuration of a flash discharge tube device including a flash discharge tube power supply circuit according to a third embodiment of the present invention.
- the power supply circuit 3B for the flash discharge tube in Fig. 6 is different from the power supply circuit 3 for the flash discharge tube in Fig. 1 in that a switching element 37 and a transformer protection resistor in which the second coil part 33 is connected in parallel with each other are provided.
- the first coil part 31 and the second coil part 33 are connected to the charge / discharge capacitor 17, the diode protection resistor 21 and the cathode 13 of the flash discharge tube 5 via the heater 39. That is, they were connected in series via the rectifying capacitor 41. That is, the parallel connection circuit of the switching element 37 and the resistor 39 is arranged on the low voltage side of the transformer 23.
- the secondary coil 27 is not limited to the two-stage configuration of the first coil unit 31 and the second coil unit 33, and may have a configuration of three or more stages. Then, a parallel connection circuit of the switching element 37 and the transformer protection resistor 39 can be arranged between one adjacent coil section. This is illustrated in FIG.
- the power source of the rectifier diode 45 is connected to the charge / discharge capacitor 17, the cathode of the surge current diode 19 and the anode 11 of the flash discharge tube 5.
- the function of the rectifier diode 45 is the same as that of the rectifier diodes 35 and 41.
- the switching element 37 and the transformer protection resistor 39 are connected in parallel, but a circuit configuration without the transformer protection resistor 39 may be adopted.
- the rectifying diode 41 and the switching element 37 are connected in series, and the first coil unit 31 and the second coil unit 33 are connected via this series connection. Connected. According to this, it is possible to prevent the surge current from flowing through the secondary coil 27 by turning off the switching element 37 when a surge current occurs. As a result, heat generation of the transformer 23 can be prevented.
- a circuit configuration without the switching element 37 can be adopted. That is, as in the sixth embodiment shown in FIG. 9, the rectifier diode 41 and the transformer protection resistor 39 are connected in series, and the first coil unit 3 is connected through this series connection. 1 and the second coil section 33 are connected. According to this, a surge current can be prevented from flowing through the secondary coil 27 by the transformer protection resistor 39, so that heat generation of the transformer 23 can be prevented.
- the i-th coil unit 31 and the second coil unit 33 may be connected in series via the rectifying diode 41.
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- Discharge-Lamp Control Circuits And Pulse- Feed Circuits (AREA)
- Stroboscope Apparatuses (AREA)
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN028217802A CN1579117B (zh) | 2001-10-31 | 2002-10-30 | 闪光放电管用电源电路 |
US10/835,570 US7081718B2 (en) | 2001-10-31 | 2004-04-30 | Power supply circuit for flash discharge tube |
US11/450,322 US7545104B2 (en) | 2001-10-31 | 2006-06-12 | Power supply circuit for flash discharge tube |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2001-335395 | 2001-10-31 | ||
JP2001335395A JP4002090B2 (ja) | 2001-10-31 | 2001-10-31 | 閃光放電管用電源回路 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/835,570 Continuation-In-Part US7081718B2 (en) | 2001-10-31 | 2004-04-30 | Power supply circuit for flash discharge tube |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003039209A1 true WO2003039209A1 (fr) | 2003-05-08 |
Family
ID=19150389
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2002/011300 WO2003039209A1 (fr) | 2001-10-31 | 2002-10-30 | Circuit d'alimentation en puissance d'utilisation pour un tube a decharge flash |
Country Status (5)
Country | Link |
---|---|
US (2) | US7081718B2 (ja) |
JP (1) | JP4002090B2 (ja) |
CN (1) | CN1579117B (ja) |
TW (1) | TW578444B (ja) |
WO (1) | WO2003039209A1 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101730362B (zh) * | 2008-10-27 | 2013-02-20 | 佛山普立华科技有限公司 | 闪光灯控制电路 |
US9087441B2 (en) | 2011-12-02 | 2015-07-21 | Utc Fire & Security Corporation | Notification appliance circuit with energy storing notification devices |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1982003913A1 (en) * | 1981-05-01 | 1982-11-11 | Aken Harold | Pulse light stabilization for color spectrophotometric instrumentation |
JPS59126519A (ja) * | 1983-01-09 | 1984-07-21 | Nec Corp | Scr直列制御式自動調光ストロボフラツシヤ装置 |
JPS59137936A (ja) * | 1983-01-28 | 1984-08-08 | Toshiba Corp | 電子閃光装置の制御回路 |
JPS62194241A (ja) * | 1986-02-20 | 1987-08-26 | Canon Inc | カメラ用閃光発光装置 |
JPH0646197Y2 (ja) * | 1987-12-07 | 1994-11-24 | シャープ株式会社 | 車両用太陽電池モジュール |
JPH07130485A (ja) * | 1993-10-29 | 1995-05-19 | Canon Inc | ストロボ装置 |
JPH07175533A (ja) * | 1993-12-20 | 1995-07-14 | Nippondenso Co Ltd | 突入電流防止回路 |
WO2000056126A1 (fr) * | 1999-03-15 | 2000-09-21 | Hamamatsu Photonics K.K. | Lampe eclair au xenon, et douille et redresseur pour lampe eclair au xenon |
JP2001215581A (ja) * | 2000-02-03 | 2001-08-10 | Fuji Photo Film Co Ltd | ストロボ装置 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5153798Y2 (ja) | 1971-05-20 | 1976-12-22 | ||
JPS56140198A (en) | 1980-04-04 | 1981-11-02 | Daicel Ltd | Paper polishing method |
US4942340A (en) * | 1984-10-23 | 1990-07-17 | Canon Kabushiki Kaisha | Arrangement for displaying operation of booster circuit for flash device camera |
GB8524735D0 (en) * | 1985-10-08 | 1985-11-13 | Lucas Ind Plc | Electric circuit arrangement |
JP2691279B2 (ja) * | 1988-04-18 | 1997-12-17 | 富士写真光機株式会社 | ストロボ装置付カメラ |
JP2902169B2 (ja) | 1991-09-13 | 1999-06-07 | 華隆微電子股▼ふん▲有限公司 | Ccd情報バスの電気回路 |
JPH05216099A (ja) | 1992-01-31 | 1993-08-27 | Canon Inc | カメラ及びストロボ装置 |
US5387849A (en) * | 1992-12-14 | 1995-02-07 | Radionic Technology Incorporated | Lamp ballast system characterized by a power factor correction of greater than or equal to 90% |
AU670485B2 (en) * | 1993-05-20 | 1996-07-18 | Brk Electronics, Inc. | Ambient condition detector with high intensity strobe light |
KR100340942B1 (ko) * | 1995-01-06 | 2002-11-30 | 삼성테크윈 주식회사 | 고속충전이가능한플래시장치 |
US5825139A (en) * | 1995-11-02 | 1998-10-20 | Hubbell Incorporated | Lamp driven voltage transformation and ballasting system |
US6724155B1 (en) * | 1995-11-02 | 2004-04-20 | Hubbell Incorporated | Lamp ignition circuit for lamp driven voltage transformation and ballasting system |
JPH10186469A (ja) * | 1996-12-25 | 1998-07-14 | Canon Inc | 電子閃光装置 |
US6518711B2 (en) * | 2001-01-19 | 2003-02-11 | Wen-Shin Chao | Halogen lamp electronic transformer |
-
2001
- 2001-10-31 JP JP2001335395A patent/JP4002090B2/ja not_active Expired - Fee Related
-
2002
- 2002-10-24 TW TW091124624A patent/TW578444B/zh not_active IP Right Cessation
- 2002-10-30 CN CN028217802A patent/CN1579117B/zh not_active Expired - Lifetime
- 2002-10-30 WO PCT/JP2002/011300 patent/WO2003039209A1/ja active Application Filing
-
2004
- 2004-04-30 US US10/835,570 patent/US7081718B2/en not_active Expired - Lifetime
-
2006
- 2006-06-12 US US11/450,322 patent/US7545104B2/en not_active Expired - Lifetime
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1982003913A1 (en) * | 1981-05-01 | 1982-11-11 | Aken Harold | Pulse light stabilization for color spectrophotometric instrumentation |
JPS59126519A (ja) * | 1983-01-09 | 1984-07-21 | Nec Corp | Scr直列制御式自動調光ストロボフラツシヤ装置 |
JPS59137936A (ja) * | 1983-01-28 | 1984-08-08 | Toshiba Corp | 電子閃光装置の制御回路 |
JPS62194241A (ja) * | 1986-02-20 | 1987-08-26 | Canon Inc | カメラ用閃光発光装置 |
JPH0646197Y2 (ja) * | 1987-12-07 | 1994-11-24 | シャープ株式会社 | 車両用太陽電池モジュール |
JPH07130485A (ja) * | 1993-10-29 | 1995-05-19 | Canon Inc | ストロボ装置 |
JPH07175533A (ja) * | 1993-12-20 | 1995-07-14 | Nippondenso Co Ltd | 突入電流防止回路 |
WO2000056126A1 (fr) * | 1999-03-15 | 2000-09-21 | Hamamatsu Photonics K.K. | Lampe eclair au xenon, et douille et redresseur pour lampe eclair au xenon |
JP2001215581A (ja) * | 2000-02-03 | 2001-08-10 | Fuji Photo Film Co Ltd | ストロボ装置 |
Also Published As
Publication number | Publication date |
---|---|
JP2003142289A (ja) | 2003-05-16 |
TW578444B (en) | 2004-03-01 |
JP4002090B2 (ja) | 2007-10-31 |
CN1579117A (zh) | 2005-02-09 |
US7081718B2 (en) | 2006-07-25 |
US20060226789A1 (en) | 2006-10-12 |
CN1579117B (zh) | 2011-01-12 |
US7545104B2 (en) | 2009-06-09 |
US20040207338A1 (en) | 2004-10-21 |
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