JP2008269975A - Lamp and light source device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To safely light a lamp by strictly controlling individual information of the discharge lamp by an IC tag. <P>SOLUTION: The IC tag 40 is installed on an edge of a conductive base 4 via an insulating cap 41 at a central axis of a light-emitting tube 2 of the lamp 1 where high-pressure gas is filled up. A shield section 47 is put on the IC tag 40 so that information to the IC tag 40 can be read and written by preventing damage and noises to the IC tag 40 at the time of turning-on. The lamp 1 records transportation information such as a history given abnormal shocks at the time of transportation, a history stored at abnormal temperature, and a history for opening a packaged box in the IC tag 40. The appropriateness of turning-on is determined by referring the transportation information written in the IC tag 40 with a light source device. The individual information of the discharge lamp can be controlled in the whole processes from a manufacturing stage to after using including processes of storage and transportation and of turning-on, and the lamp can be always turned on at safety. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a discharge lamp, and more particularly, to a discharge lamp including an IC tag that holds information for safely lighting while preventing erroneous mounting and explosion.

  A short arc type discharge lamp is used as a light source of an exposure apparatus that forms a pattern on a semiconductor, a liquid crystal panel, a printed wiring board, or the like. There is also a short arc type discharge lamp in which a rare gas such as Xe gas, Kr gas, or Ar gas is sealed in an arc tube at 1 atmosphere or more at room temperature. Further, in a metal vapor discharge lamp such as a rare gas type discharge lamp or a mercury discharge lamp used as a light source for a projector or a projector, there is a discharge lamp in which a rare gas having a pressure of 1 atm or more is enclosed in an arc tube. Hereinafter, these high-pressure gas-filled discharge lamps are simply referred to as discharge lamps or discharge lamps.

  When a discharge lamp is transported or attached to a device that lights the discharge lamp, if the discharge lamp is accidentally subjected to a large impact, the discharge lamp may be damaged. If the discharge lamp is damaged, the impact of high-pressure gas discharge is great, which can be fatal. Even if it does not lead to breakage, if a small scratch or crack occurs due to impact, or if a part of the device part peels off and remains on the surface, the discharge lamp may burst during lighting. In order to avoid such a problem, a safety cover is attached with a string to mitigate an impact when the discharge lamp is ruptured during an operation of attaching the discharge lamp to the lighting device. Further, in order to prevent forgetting to remove the protective cover, a resistance circuit and a capacitor circuit are provided on the protective cover so that the lighting device can recognize the presence of the protective cover. The following are some examples of the related art.

  The “safety cover for a discharge lamp” disclosed in Patent Document 1 reduces damage caused when a discharge lamp filled with a high-pressure rare gas bursts. As shown in FIG. 8A, a discharge lamp in which a gas body having a pressure higher than atmospheric pressure is sealed at room temperature is protected. It is a cover formed of a breathable sheet, a breathable cylinder, and a breathable bag. The end of this cover is bound to the stem portion of the discharge lamp or bound outside the base portion.

  The “protective cover for discharge lamp” disclosed in Patent Document 2 can easily attach the protective cover to the discharge lamp, and the protective cover can be removed even after the discharge lamp is attached to the lighting device. This is a protective cover for a discharge lamp that can be easily performed. As shown in FIG. 8B, a self-adhesive sheet is used for the discharge lamp protective cover that covers at least the arc tube portion of the discharge lamp.

  The “discharge lamp protective cover” disclosed in Patent Document 3 prevents forgetting to remove the discharge lamp protective cover that is covered to protect the discharge lamp after the discharge lamp is attached to the discharge lamp lighting device. Is. As shown in FIG. 8C, a resistance circuit or a capacitor circuit connected between both terminals or both caps of the discharge lamp is provided on the discharge lamp protective cover for covering the discharge lamp. As a result, if you forget to remove the discharge lamp protection cover after attaching the discharge lamp to the discharge lamp lighting device, the discharge lamp will not light even if you try to turn on the discharge lamp. Forgetting can be prevented.

  The “ultra-high-pressure mercury lamp” disclosed in Patent Document 4 is free from debris even if the lamp is ruptured when excessive stress exceeding the specified level is applied during lamp replacement work or when the lamp is defective. It is an ultra-high pressure mercury lamp that does not scatter. The ultra-high pressure mercury lamp is used as a light source in a semiconductor exposure apparatus or the like in which a gas at atmospheric pressure or higher is enclosed. As shown in FIG. 8 (d), the protective cover that wraps the bulb and the protective case that is packed during transportation are covered twice until the ultrahigh pressure mercury lamp is fixed to the lighting device. After fixing the ultra-high pressure mercury lamp to the lighting device, it is easy to check the presence of the protective cover. The lamp cannot be lit without removing the protective cover.

  The “inkjet printer” disclosed in Patent Document 5 directly uses a non-contact type or contact type IC tag semiconductor memory in which a password, light source usage history, light source shipment information, and the like are recorded, as a light source for irradiating ultraviolet rays. Or, it is provided in the connector and wiring to prevent the use of different types of light sources, and the lifespan is managed by writing the lighting time and the number of lighting-off times on the IC tag.

  The “consumables replacement time management system” disclosed in Patent Document 6 is provided with an IC tag having information such as ID information, seal opening state information, use start time information, fluorescent lamp wattage, and the like on a consumable chip. Thus, the replacement time of consumables is automatically managed.

The “discharge lamp protective cover” disclosed in Patent Document 7 prevents mistaken mounting of the discharge lamp and forgetting to remove the protective cover. As shown in FIG. 8E, the surface of the discharge lamp is protected by a protective cover so that damage can be reduced even when the discharge lamp filled with the high-pressure gas is ruptured during transportation. An IC chip is provided on the protective cover to hold information on the discharge lamp. When attaching the protective cover to the lighting device, reading the information on the IC chip prevents incorrect installation of the discharge lamp. When the protective cover is removed, the IC chip is destroyed, so that the information on the IC chip cannot be read, the removal of the protective cover is detected, and forgetting to remove can be prevented. By authenticating the discharge lamps individually, the specifications of the discharge lamps are checked as appropriate, and the occurrence of defects after the operation of the apparatus by lighting the discharge lamps with different specifications is prevented.
JP 2002-302180 A Japanese Patent Laid-Open No. 2003-160185 JP 2003-272558 A Japanese Patent Laid-Open No. 2003-309060 JP 2005-138476 A JP 2006-085344 JP Japanese Unexamined Patent Publication No. 2007-091235

  However, conventional discharge lamp protective covers and IC tags have the following problems. By simply providing an IC chip on the arc tube cover that can be removed from the discharge lamp, individual discharge lamp management cannot be performed. Since it is impossible to grasp the storage state and the transportation state of the discharge lamp, it is impossible to know the damage of the discharge lamp. If the IC tag is attached directly to the discharge lamp, the IC tag will be destroyed by the high temperature and high voltage during lighting. Since the lighting state cannot be recorded, the life of the discharge lamp cannot be managed. Even if the IC tag is attached to the discharge lamp through a heat insulating material by a simple method, the shape will be different from the normal one, so it cannot be used unless it is a dedicated lighting device.

  Even if the arc tube cover is attached, the discharge lamp may be ruptured when it is turned on by the light source device due to improper storage or transportation. Inappropriate transport conditions include, for example, abnormal shocks and temperatures. With respect to the impact, if the impact is such that the arc tube breaks, the discharge lamp is not kept airtight and cannot be lit, so it is not used in the light source device. On the other hand, when the arc tube is subjected to such an impact as not to break down, there is a case where it is lit in a cracked state when the damage is inconspicuous. If it lights up with a crack in this way, the crack will start from the crack. For abnormal temperatures, the discharge lamp is stored at an abnormally high temperature, and the arc tube cover sticks to the surface of the arc tube. Even after the arc tube cover is removed, the minute lamps that make up the arc tube cover Fragments remain on the arc tube surface.

  Further, since the discharge lamp is stored at an abnormally low temperature, water vapor in the air condenses or freezes on the surface of the arc tube, so that minute water droplet stains remain in the light emitting portion. If the discharge lamp is turned on with a small piece of arc tube cover or a minute water droplet stain on the surface of the arc tube, the fragment or stain may become hot and the discharge lamp may burst. . Thus, since it is difficult to determine whether or not the discharge lamp is in a ruptured state at first glance, in most cases, the lamp is lit as it is, leading to a rupture.

  In order to start lighting the discharge lamp, a high voltage starter pulse is temporarily applied between the electrodes in the discharge lamp to cause dielectric breakdown. Thereafter, a method of lighting with a normal voltage is taken. Therefore, when the IC tag is directly provided on the discharge lamp, the internal circuit of the IC tag is destroyed. Further, since the discharge lamp is in a high temperature state during lighting, if the IC tag is directly provided on the discharge lamp, the internal circuit of the IC tag is destroyed at a high temperature. Also, in order to protect the discharge lamp in the packaging box, a packaging box that is significantly larger than the discharge lamp is usually used. Therefore, it is difficult for the conventional lamp packaging box to read and write information on the IC tag with the discharge lamp in the packaging box.

  SUMMARY OF THE INVENTION An object of the present invention is to solve the above-described conventional problems, and to strictly control individual information with an IC tag in a discharge lamp so that it can be lit safely.

  In order to solve the above-described problems, in the present invention, an IC tag is provided in a feeding structure of a discharge lamp including a luminous tube, a pair of electrodes opposed in the luminous tube, and a feeding structure that supplies power to the electrodes. It was set as the structure hold | maintained through the insulating member. The insulating member is a bottomed cylindrical cap member, and an IC tag is accommodated on the bottom inside the cap member. The power feeding structure includes a conductive base, and an IC tag is provided at a portion on the central axis of the arc tube at the end of the base. A shield member is provided that covers the IC tag in a shape that shields heat and electrical noise from the IC tag during lighting and does not block radio waves that read and write information to the IC tag. Information on one of lamp information, transportation information, unsealing history information, lighting history information, or a combination thereof is recorded on the IC tag.

  Lamp information includes date of manufacture, manufacturer name, manufacturing location, manufacturing line, lamp model, model number, lot number, identification number, rated lamp current, rated lamp voltage, cooling conditions, installation direction on the device, and usage limit Information of time or a combination of these, and transportation information includes factory shipment date / time, warehouse receipt / shipment date / time, agency arrival / shipment date / time, shipping destination, shipping company name, package slip number, person in charge name , Temperature history, shock history, or a combination of these. Opening history information is either the date / time when the packaging box was opened, the date / time when the arc tube cover was opened, or a combination of these. The lighting history information includes lighting start date / time, extinguishing date / time, relighting date / time, lighting condition, number of blinks, integrated lighting time, device individual number, device setting, device error information, use prohibition information. Either, or is information for these combinations.

  In a light source device using this discharge lamp, an IC tag reader is disposed at a position facing an IC tag provided on the discharge lamp. Means for determining whether the lamp can be lit based on the lamp information in the IC tag read by the IC tag reader, the transport information, the opening history information, and the lighting history information, and a discharge lamp if it is determined that the lamp cannot be lit And means for controlling so that it cannot be used normally. Means for writing lighting history information to the IC tag is provided. When an error occurs in communication between the IC tag and the reading device, there is provided means for controlling so that the discharge lamp can be lit only for a certain period.

  With the configuration described above, the individual information can be strictly managed by the IC tag and can be lit safely. In particular, since the IC tag is provided on the discharge lamp body, it is possible to manage the individual transport history and lamp usage history of the discharge lamp. That is, by recording the discharge lamp transport information on the IC tag, it is possible to prevent the use of a discharge lamp that is highly likely to burst due to improper transport. Since the IC tag is protected from high temperatures and noise signals by the insulating member and the shield member, information can be read and written even while the lamp is lit, and usage information of the discharge lamp can be recorded on the IC tag and managed accurately. Furthermore, since the IC tag is provided at a site where there is no problem even if it is attached to the conventional light source device, the conventional light source device can be turned on.

  Hereinafter, the best mode for carrying out the present invention will be described in detail with reference to FIGS.

  In an embodiment of the present invention, a bottomed cylindrical cap member is provided at the end of a base on the central axis of an arc tube, and an IC tag for holding information on a discharge lamp, information on transportation, and information on lighting on the inside bottom This is a discharge lamp with a shield member attached so as to shield heat and electrical noise during lighting and not shield radio waves.

  FIG. 1 is a conceptual diagram of a discharge lamp in an embodiment of the present invention. In FIG. 1, a lamp 1 is a short arc type discharge lamp. The arc tube 2 is a portion that emits light inside. The sealing tube 3 is a portion that seals the arc tube 2 and connects and holds electrodes. The base 4 is a portion that receives electric power from the outside and holds the discharge lamp in the light source device. The base convex part 5 is a cylindrical part of the base and is a part held by the light source device. The base cylindrical part 6 is a cylindrical part of the base and is a part that holds the sealing part inside. The IC tag 40 is a non-powered IC chip that holds information on the discharge lamp and information on transportation. The cap 41 is a bottomed cylindrical cap that holds the IC tag at the tip of the cap projection 5. The shield part 47 is a conductive bottomed cylindrical member. The reader / writer 60 is a device that reads information on the discharge lamp and information on transportation held in the IC tag. FIG. 2 is a partially enlarged view of the IC tag provided in the discharge lamp in the embodiment of the present invention.

  FIG. 3 is a view showing a packaging state of the discharge lamp. In FIG. 3, a packing box 10 is a box for safely transporting the lamp 1. The exterior part 11 is a part constituting the outer surface of the packaging box 10. The buffer portion 12 is a portion that protects the lamp 1 from an impact caused by an external force by a buffer function. The packaging box recess 13 is a concave portion that enters from the outer surface of the packaging box 10. The arc tube cover 14 is a cover that covers and protects the arc tube after the discharge lamp is taken out of the packaging box. The transport state sensor 30 is a means for grasping the transport state of the discharge lamp contained in the packaging box. For example, there are a temperature sensor and an acceleration sensor. The packaging box sensor 31 is means for detecting that the packaging box 10 has been opened. The cover sensor 32 is means for detecting that the arc tube cover 14 has been removed from the discharge lamp. The sensor control unit 33 is a circuit that collects electrical signals from the transportation state sensor 30 and the packaging box sensor 31. The signal line 34 is a conducting wire that transmits and receives electrical signals between each sensor unit, the sensor control unit 33, and the IC tag 40.

  FIG. 4 is a diagram showing the configuration of the IC tag and the reader / writer. The IC tag 40 includes an IC chip, an antenna part, and a terminal part. The IC chip includes a storage device. In the storage device, lamp information, transportation information, opening history information, and lighting history information are recorded. Reading / writing of information in the storage device is performed by the reader / writer 60 via the antenna unit. The packaging box 10 includes a transport state sensor 30, a packaging box sensor 31, a sensor control unit 33 that is electrically connected to these sensors and controls the sensors, and a cover sensor 32. The sensor control unit 33 and the cover sensor 32 are electrically connected to the terminal portion of the IC tag 40. Since the sensor control unit 33 has a clock and outputs time information indicating the current time, the time information can be added to the transportation environment information and the opening history information.

  FIG. 5 is a diagram showing when information is written to the IC tag and its contents. FIG. 6 is a diagram in which an IC tag is attached to a straight tube type discharge lamp. In FIG. 6, a lamp 101 is a high-pressure mercury lamp. The arc tube 102 is a straight tube made of quartz. The sealing tube 103 is a portion that seals the arc tube and connects and holds the electrode. The base 104 is a part that receives electric power from the outside and holds the discharge lamp in the light source device. FIG. 7 is a diagram in which an IC tag is attached to a U-tube type discharge lamp. In FIG. 7, a lamp 201 is a low-pressure mercury lamp. The arc tube 202 is a quartz U-shaped tube. The base 204 is a part that receives electric power from the outside and holds the discharge lamp in the light source device.

  The function and operation of the discharge lamp in the embodiment of the present invention configured as described above will be described. First, the outline of the function of the discharge lamp will be described with reference to FIG. A cap 41 is fitted into the end of the cap projection 5 of the lamp 1. The cap 41 holds the IC tag 40. The IC tag 40 is read and written by the reader / writer 60 for information on the discharge lamp and information on transportation. Since the IC tag 40 communicates with the reader / writer 60 by radio waves, the cap 41 is preferably made of a material that can easily transmit radio waves. Furthermore, since the cap 4 is energized when the lamp is lit, the cap 41 is preferably made of an insulating material. A fluororesin such as Teflon (registered trademark) is used. By using a cap made of an insulating material, the IC tag can be protected from a high voltage applied to the base. In particular, it is important to protect against a strong starter pulse at the start of lighting. In addition, since the IC tag 40 is provided in a place where there is no problem when the lamp 1 is attached to the conventional light source device, the light source device that does not include the reader / writer 60 of the IC tag 40 can be lit as usual. it can.

  Next, an IC tag provided in the discharge lamp will be described with reference to FIG. By covering the shield portion 47, the IC tag 40 can be protected from the heat and electrical noise of the discharge lamp. Further, since the shield part 47 has a bottomed cylindrical shape and is opened in the direction in which the reader / writer 60 is installed, the radio wave between the IC tag 40 and the reader / writer 60 can be obtained even when the lamp is lit. Can read and write information without problems.

  Next, a packaging box for the discharge lamp will be described with reference to FIG. The lamp 1 is transported while being protected from external force by a packaging box 10 composed of an exterior part 11 and a buffer part 12. In order to prevent external force from being transmitted to the lamp 1, the lamp 1 is held in the packaging box 10 by the buffer portion 12 so that a certain distance is maintained between the lamp 1 and the exterior portion 11. . Here, the buffer portion 12 uses a tray of PET material that is press-molded into a shape having a buffer function. In general, when reading / writing from / to the small IC tag 40, it is necessary to bring the reader / writer 60 close to the IC tag 40 to several millimeters. Therefore, the packaging box recess 13 is provided in the packaging box 10 so that the reader / writer 60 can approach the IC tag 40. Thereby, information can be easily read from and written to (communication with) the IC tag 40 even when the lamp 1 is in the packaging box.

  Next, an operation of reading and writing information between the IC tag and the reader / writer will be described with reference to FIG. During manufacture and transportation of the discharge lamp, the reader / writer 60 writes lamp information and transportation information. At this time, the actual discharge lamp and the information written in the IC tag 40 are collated. In the light source device in which the discharge lamp is used, the system unit reads and writes information in the storage device of the IC tag 40 via the reader / writer 60. In consideration of the result and the information in the storage device of the light source device, it is determined whether or not the discharge lamp can be used. In response to the result, display and necessary operations are performed in the light source device.

  Information written to the IC tag 40 includes lamp information, transportation information, opening history information, and lighting history information. Below, these information is demonstrated. The lamp information includes individual lamp information and device setting information. The individual lamp information includes a manufacturing date, a manufacturer name, a manufacturing place, a manufacturing line, a lamp model, a product number, a lot number, an identification number, and the like. The device setting information includes a rated lamp current, a rated lamp voltage, a cooling condition, an installation direction to the device, a use limit time, and the like. The transportation information includes transportation progress information and transportation state information. The transportation progress information includes factory shipment date / time, warehouse entry / exit date / time, agency arrival / shipment date / time, ship-to party (customer), transport company name, package slip number, person in charge name, and the like.

  The transportation state information includes a temperature history and an impact history. As a method for leaving the temperature history, for example, there is the following method. When the temperature sensor detects that the temperature has been above or below the specified temperature for a certain period of time, information indicating that it has been stored in an abnormal state and the temperature value at that time are sent to the IC tag 40. Record. As a method of leaving an impact history, for example, there is the following method. When it is detected by an acceleration sensor or the like that a certain amount of impact has been received, information indicating that an abnormal impact has been received and the acceleration value at that time are recorded in the IC tag 40. Furthermore, the time may be given and recorded in the IC tag 40 by the time information of the sensor control unit.

  The opening history information is information such as a history of opening the packaging box 10 and a history of opening the arc tube cover. When the packaging box 10 is opened or when the arc tube cover is opened, each opening history information is recorded in the IC tag 40. As a means for detecting opening, for example, a sensor that opens a part of the circuit by peeling off the conductive seal and opening it is used. When the packing box 10 is opened, the packing box sensor and the terminal part of the IC tag 40 are electrically connected via the sensor control unit, and the opening history information that the packing box 10 has been opened is stored in the IC tag 40. Write. Further, the opening time may be recorded in the IC tag 40 by the time information of the sensor control unit. When the arc tube cover is opened and removed from the discharge lamp, the packaging box 10 is separated from the discharge lamp, so that the terminal part of the IC tag 40 and the cover sensor are electrically connected without using the sensor control part. Then, the opening history information that the arc tube cover is removed is written. When the IC tag 40 is not equipped with a power supply, the connection with the cover sensor is later detected by the reader / writer 60 via the terminal portion.

  The lighting history information includes lighting start date / time, light-off date / time, re-lighting date / time, lighting condition, number of blinks, integrated lighting time, device individual number, device setting, device error information, use prohibition information, and the like. These pieces of information can be used not only for managing the usage status of the discharge lamp but also for investigating the cause later when a malfunction occurs in the discharge lamp.

  Next, reading and writing with respect to the IC tag after the discharge lamp is manufactured and after the use is stopped will be described with reference to FIG. Write lamp information to the IC tag using a reader / writer when manufacturing the lamp. When the lamp is transported, the transport progress information is written to the IC tag using a reader / writer. Here, the lamp information written in the IC tag is read, and the discharge lamp and the lamp information are collated. If there is a temperature abnormality or an abnormal shock during transportation, transportation status information is written to the IC tag. By opening the packing box, packing box opening history information is written to the IC tag. By removing the arc tube cover from the discharge lamp, arc tube cover removal information is written to the IC tag.

  When the discharge lamp is attached to the light source device, before the light source device turns on the discharge lamp, the lamp information, transportation information, opening history information, and lighting history information written on the IC tag are read to determine whether or not lighting is possible. , Warning display and lighting stop operation. If the lamp information reveals that the lamp type is incompatible with the light source device, the light source device issues a warning. For transportation information, for example, the following determination is made. If the period from the lamp manufacturing time to the lighting start time is abnormally long, the performance of the discharge lamp cannot be ensured, and the light source device issues a warning. When the period from the time when the packaging box is opened to the lighting start time is abnormally long, the storage condition of the discharge lamp is suspected, and the light source device issues a warning. If there is no record of opening the arc tube cover, the light source device issues a warning because it is suspected that the arc tube cover is forgotten to be removed.

  If there is a record of abnormality in the temperature history or impact history, the light source device issues a warning. It is preferable that the light source device not only gives a warning to the worker but also prevents the discharge lamp from being used forcibly. In the light source device, the following lighting history information is written while the discharge lamp is used. When the discharge lamp starts lighting, the lighting start date and time and lighting conditions are written in the IC tag. Write the lighting time and lighting conditions to the IC tag even after lighting for the specified time. Further, when the lighting time exceeds the life of the discharge lamp, a warning is issued to the worker or the lamp is forcibly turned off.

  When the lamp is turned off, the lighting time and the lighting date and time are written to the IC tag. When the system unit of the light source device determines that the lighting state of the discharge lamp is abnormal, after the lamp is forcibly turned off, the abnormal state and the date and time of occurrence are written to the IC tag as lighting history information. . The recording of the abnormal state may be an error code of the apparatus. In the case of a lamp abnormality that cannot be relighted, lighting history information indicating that use has been prohibited is written to the IC tag. Even when the discharge lamp is turned on again, before the light source device turns on the discharge lamp, the lamp information, transportation information, opening history information, and lighting history information written in the IC tag are read to determine whether the lamp can be lit. . For this reason, even if the discharge lamp is changed during its life, the usage history such as the lighting time remains as a record in the IC tag of the lamp body, so the life of each discharge lamp can be managed.

  In the discharge lamp that has reached the specified life, lighting history information that the use is prohibited because the specified life has been reached is written in the IC tag. In addition, lighting history information indicating that the use is prohibited is written in the IC tag in the discharge lamp determined by the system of the light source device that re-lighting is impossible due to an abnormal discharge lamp. Since the discharge lamp provided with the IC tag in which the use prohibition information is written is rejected to be turned on by determining whether the light source device can be turned on or not, it can be prevented from being turned on by mistake. Furthermore, in the light source device, the lamp information may be read from the IC tag and recorded in the storage device as a discharge lamp whose use has been stopped. When the IC tag is collected from the discontinued discharge lamp, the usage status of the discharge lamp can be grasped from the lighting history information of the IC tag, which can be used for future lamp quality control. In addition, when the lighting is stopped due to a lamp abnormality, it can be used for investigating the cause.

  When a communication error occurs between the IC tag and the reading device during initial lighting, relighting, or lighting, it is preferable to take measures to enable the discharge lamp to be lit only for a certain period. In the case of a communication error at the time of initial lighting or relighting, an operator can turn on the discharge lamp for a certain period by inputting lamp information such as the manufacturing number of the discharge lamp on the touch panel of the light source device. . The lamp information such as the input manufacturing number is recorded in the storage device of the light source device, whereby the lamp lighting time can be managed. In the case of a communication error while the lamp is lit, the lamp can be lit continuously for a certain period. Even in this case, when a problem occurs in the lamp itself, it is preferable to forcibly turn off the light source device. Since it is lit as a temporary measure until maintenance personnel arrive for the repair of the IC tag reader, the certain period is, for example, a period of several days. Particularly in a remote place, it is preferable to set the period longer.

  Next, an example in which an IC tag is attached to a straight tube type discharge lamp will be described with reference to FIG. Examples of the straight tube type discharge lamp include a high-pressure mercury lamp, a metal halide lamp, and a low-pressure mercury lamp, but are not limited to these discharge lamps. A base 104 is fixed to an end portion of the sealing tube 103 provided continuously with the arc tube 102. The lamp 101 is held in the light source device via the base 104. A power supply line 7 extends from the base 104. One end of the feeder line 7 is electrically connected to an electrode (not shown) in the arc tube. A crimp terminal 8 is fixed to the other end. An insulating cap 141 is held at the end of the base 104. In the cap 141, an IC tag 40 covered with a shield part 47 is provided. The IC tag 40 stores lamp information and the like.

  Next, an example of attaching an IC tag to a U-shaped discharge lamp will be described with reference to FIG. Examples of the U-shaped discharge lamp include a low-pressure mercury lamp, a cold cathode lamp, and a flash lamp, but are not limited to these discharge lamps. A base 204 is fixed to both ends of the arc tube 202. The lamp 201 is held in the light source device via the base 204. A power supply line 7 extends from the base 204. One end of the feeder line 7 is electrically connected to an electrode (not shown) in the arc tube. A connector 9 is fixed to the other end. A concave hole is provided in a part of the base 204, and an insulating cap 241 is fitted therein. In the cap 241, the IC tag 40 covered with the shield part 47 is provided. The IC tag 40 stores lamp information and the like.

  These discharge lamps can also protect the IC tag from a high voltage at the start of lighting and a high temperature during lighting. The IC tag is directly attached to the discharge lamp, and individual information on the discharge lamp is managed. Furthermore, when the discharge lamp has a possibility of bursting or the like due to an inappropriate transportation state, the discharge lamp can be prevented from being turned on.

  As described above, in the embodiment of the present invention, the discharge lamp is provided with a bottomed cylindrical cap member at the end of the base on the central axis of the arc tube, and information on the discharge lamp and information on transportation are provided at the bottom inside thereof. And an IC tag that holds information about lighting and a shield member that covers the heat and electrical noise at the time of lighting and shields radio waves, so it is in the manufacturing stage, including during storage and transportation and lighting The individual information of the discharge lamp can be managed throughout the entire process from use to after use, and it can always be lit safely.

  The discharge lamp of the present invention is optimal as a discharge lamp that can be safely operated by strictly managing compatibility and history. In particular, it is indispensable as a discharge lamp for applications in which a discharge lamp that is at risk of bursting due to improper transportation and management cannot be lit.

It is a conceptual diagram of the discharge lamp in the Example of this invention. It is the elements on larger scale of the IC tag provided in the nozzle | cap | die of the discharge lamp in the Example of this invention. It is a figure which shows the packing state of the discharge lamp in the Example of this invention. It is a functional block diagram which shows the structure of the IC tag and reader / writer which were provided in the nozzle | cap | die of the discharge lamp in the Example of this invention. It is a figure which shows the time when information is written in the IC tag provided in the nozzle | cap | die of the discharge lamp in the Example of this invention, and its content. It is the figure which provided the IC tag in the nozzle | cap | die of the straight tube | pipe type discharge lamp in the Example of this invention. It is the figure which provided the IC tag in the nozzle | cap | die of the U-shaped tube type discharge lamp in the Example of this invention. It is a conceptual diagram which shows the cover of the conventional discharge lamp.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,101,201 Lamp 2,102,202 Light-emitting tube 3,103 Sealing tube 4,104,204, Base 5 Base convex part 6 Base cylindrical part 7 Feed line 8 Crimp terminal 9 Connector
10 Packing box
11 Exterior
12 Buffer
13 Packing box recess
14 Arc tube cover
30 Transport status sensor
31 Packing box sensor
32 Cover sensor
33 Sensor control unit
34 Signal line
40 IC tag
41,141,241 cap
47 Shield part
60 Reader / Writer

Claims (10)

In a discharge lamp comprising an arc tube, a pair of electrodes facing each other in the arc tube, and a power feeding structure for supplying power to the electrodes, an IC tag is held on the power feeding structure via an insulating member A discharge lamp characterized by that. The discharge lamp according to claim 1, wherein the insulating member is a bottomed cylindrical cap member, and the IC tag is housed in a bottom inside the cap member. 3. The discharge according to claim 1, wherein the power feeding structure includes a conductive base, and the IC tag is provided at a portion that is an end of the base and is on a central axis of the arc tube. lamp. A shield member that covers the IC tag is provided in a shape that shields heat and electrical noise from the IC tag during lighting and does not block radio waves that read and write information to the IC tag. The discharge lamp according to claim 1. The discharge according to any one of claims 1 to 4, wherein any one of lamp information, transportation information, opening history information, lighting history information, or a combination thereof is recorded on the IC tag. lamp. The lamp information includes the date of manufacture, manufacturer name, manufacturing location, manufacturing line, lamp model, type number, lot number, identification number, rated lamp current, rated lamp voltage, cooling condition, installation direction on the device, and usage. Information on one of the time limits or a combination of these, and the transportation information includes factory shipment date / time, warehouse entry / exit date / time, agency arrival / shipment date / time, shipping destination, name of shipping company, package slip number, charge Name, temperature history, impact history, or a combination of these, the opening history information is either the date and time when the packaging box was opened, the date and time when the arc tube cover was opened, or these The lighting history information includes lighting start date / time, lighting date / time, relighting date / time, lighting condition, number of blinks, integrated lighting time, device individual number, device setting, device error information. , Either disable information, or, the discharge lamp according to claim 5, characterized in that the information of these combinations. A light source device using the discharge lamp according to claim 1, wherein an IC tag reader is arranged at a position facing an IC tag provided on the discharge lamp. apparatus. If the lamp information in the IC tag read by the IC tag reader, transport information, opening history information and lighting history information, means for determining whether the lamp can be turned on, 8. The light source device according to claim 7, further comprising means for controlling the discharge lamp so that it cannot be used normally. 9. The light source device according to claim 7, further comprising means for writing lighting history information to the IC tag. 10. The device according to claim 7, further comprising means for controlling the discharge lamp to be lit only for a certain period when an error occurs in communication between the IC tag and the reading device. The light source device according to any one of the above.

Images