KR101429295B1 - Lighting apparatus - Google Patents

Abstract

In the light source device which reads the lamp information and observes the usage state and the use history of the discharge lamp, the display portion and the display reading portion are protected from light, heat or high voltage of the lamp.

A metal shell shield 50 for forcibly cooling the mouthpiece holder 40 for protecting the mouthpiece 20 of the discharge lamp by a temperature control medium to shield light or electromagnetic waves or heat from the discharge lamp. A display reading unit (60) for reading the individual information of the discharge lamp displayed on the display unit (30) is provided in the shielding body (50). The display portion 30 at the tip of the mouthpiece 20 is inserted into the shielding body 50 while the mouthpiece 20 is inserted into the mouthpiece holder 40 to protect the lamp. Since the display reading portion 60 is electrically insulated from the mouthpiece 20, it is not affected by a strong high-voltage start pulse at the start of discharge lamp lighting. The display reading unit 60 reads the information displayed on the display unit 30. [ Since the display portion 30 and the display reading portion 60 are shielded from the light, heat, or high voltage at the time of lighting the discharge lamp in the shielding body 50, the lamp information can reliably be read throughout the use period.

Light source device

Description

LIGHTING APPARATUS

The present invention relates to a light source device, particularly, a light source device that protects a separate information reading unit that reads individual information of a discharge lamp.

Conventionally, a mask pattern such as for LSI manufacturing is exposed on a substrate in a light source apparatus using a discharge lamp as a light source. It is necessary to set the positional relationship between the mask and the substrate before exposure. For this reason, in the method disclosed in Patent Document 1, as shown in Fig. 9 (A), alignment marks of a mask and a substrate are photographed by an image pickup device. The relative positions of the mask and the substrate are matched so that the marks of both are matched. After the position registration is completed, the imaging device is retracted.

Furthermore, the substrate can not be exposed with high precision unless the discharge lamp satisfies the specified specifications such as the wavelength or the light amount. Therefore, when a new discharge lamp is attached, it is necessary that the discharge lamp satisfies the specified specification. In addition, there is a characteristic deterioration due to the long-term use of the discharge lamp, so it is necessary to replace the discharge lamp if the specification is not satisfied. When replacing the discharge lamp, it is necessary to confirm that the new discharge lamp satisfies the specified specification.

Thus, the present applicant has proposed a light source device which can confirm whether a discharge lamp is suitable in Patent Document 2. This light source device reads and confirms the discharge lamp data displayed on the mouthpiece as shown in Fig. 9 (B). Install a reading device that reads the discharge lamp data on the cap holder. It is automatically determined whether or not the mounted discharge lamp is a suitable discharge lamp. If the discharge lamp is a proper discharge lamp, it drives the discharge lamp and manages the usage state and usage history of the discharge lamp.

Furthermore, the present applicant has proposed an IC tag authentication method in Patent Document 3. This mounts the IC tag through the insulating cap on the end of the conductive cap on the central axis of the arc tube of the discharge lamp in which the high-pressure gas is sealed as shown in Fig. 9 (C). The IC tag is covered with the shield portion so as to prevent damage or noise to the IC tag at the time of lighting and to enable reading and writing of information on the IC tag. Record the transport information such as the history of discharge lamps when they were strangely shocked when transporting them, the history of storage at abnormal temperatures, or the history of unpacking the IC tags. The transportation information written in the IC tag is referred to by the light source device, and it is judged whether the light is on or not. Individual information of the discharge lamp can be managed throughout the entire process from manufacture to use, including during storage and transportation, and can be safely switched on at all times.

The consumable item replacement timing management system disclosed in Patent Document 4 manages the use start time and the elapsed use time of the consumables, and automatically notifies the user when the replacement time comes. As shown in Fig. 9 (d), a consumable chip is removably attached to a fluorescent lamp or the like. Remove the seal attached to the consumable chip and attach the fluorescent lamp. The reader / writer communicates with the IC tag in a non-contact manner, detects the mounting state, and reads and writes the mounting state information. And judges the use start of the fluorescent lamp based on the read mounting state information. When a certain lifetime has elapsed from the use start time, the user is notified to exchange the fluorescent lamp.

In addition, the present applicant has proposed a method of withdrawing a reading device in Patent Document 5. This displays the discharge lamp data on the mouth of the discharge lamp as shown in Fig. 9 (e). A reading means for reading the discharge lamp data is installed in the cap holder which protects the cap. The reading means is moved to a position where the discharge lamp is protected by the key holder and is not lighted and the discharge lamp data is read. Before the lamp is turned on, the reading means is moved to a retreat position where a shielding portion for shielding heat or the like caused by lamp lighting is provided.

[Patent Document 1] JP-A-07-013340

[Patent Document 2] Specification 2006 - 100000 Specification

[Patent Document 3] Specification 2007 - 111889 Description

[Patent Document 4] Specification 2006 - 085344 Specification

[Patent Document 5] Specification 2006-222170 Specification

However, the conventional discharge lamp individual information acquisition method has the following problems.

There is a risk that the constituent members of the reading device may be insulated by a high voltage in a discharge lamp in which a pulse-like high voltage that causes insulation breakdown between the discharge lamp electrodes is applied from the mouthpiece holder to the discharge lamp. Further, when the discharge lamp is lit, the vicinity of the mouthpiece holder becomes a high temperature state of about 200 ° C to 300 ° C, and the constituent members of the reading device are deteriorated by heat. When the reading device is deteriorated, the use state of the discharge lamp, the usage history, and the like can not be accurately managed. In order to avoid this, it is difficult to directly apply the insertion / removal method to the optical path of the image pickup apparatus disclosed in Patent Document 1 to the management of the discharge lamp in the light source apparatus because the condition of the cause of deterioration is remarkably different. In addition, as disclosed in Patent Document 5, if a structure for evacuating the reading device to protect the reading device from heat or high voltage is provided, the structure of the light source device becomes complicated, resulting in high cost.

Furthermore, for example, there is a possibility that the member for displaying the discharge lamp data given to the mouthpiece is discolored by the light from the discharge lamp or the heat of the mouthpiece, so that the reading in the reading device may become difficult. Also, there is a fear that the IC tag may be deteriorated or damaged by the heat transmitted from the mouthpiece. Therefore, in the use of the long-term discharge lamp, it is difficult to reliably read the lamp data.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-described conventional problems, and to provide an apparatus for reading and writing individual information of a discharge lamp protected at the mouthpiece of a discharge lamp and information on the information thereof to a heat lamp or a light or a discharge lamp From the high voltage of the discharge lamp to the entire duration of the discharge lamp.

According to an aspect of the present invention, there is provided an information storage apparatus comprising: a light source unit, which is a light emitting tube having an accessory holding means for holding lamp information; a keyhole holder for protecting the keyhole; And a shield for holding the information reading means in the inner space, wherein the information reading means is a means for guiding the information reading means in such a way that the opening of the mouthpiece holder of the light source device having reading means is such that the mouthpiece holder Is provided at a position opposite to the information holding means.

And means for introducing the temperature control medium for cooling the information reading means and the information holding means into the internal space of the shielding body and discharging the temperature controlling medium. The shield is made of a conductive metal, and a member for electrically insulating the gap between the shield and the mouthpiece is provided, or a member for electrically insulating the information reading means is provided. Alternatively, the shield is composed of an insulator and is covered by an electrical seal. The mouthpiece holder has a plurality of grooves for ejecting the temperature control medium on the surface that contacts the mouthpiece. Or the mouthpiece holder includes a mouthpiece protecting portion for supporting the mouthpiece and a pillar portion for supporting the mouthpiece protecting portion attached to the shielding body.

According to the above configuration, the information holding means and the information reading means can be protected from the high voltage applied to the heat of the discharge lamp, the light or the discharge lamp, and the usage state of the discharge lamp and the usage history can be accurately managed.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the best mode for carrying out the present invention will be described in detail with reference to FIG. 1 to FIG.

[Example 1]

In a first embodiment of the present invention, a display reading unit is provided inside an internally shielded and forcedly cooled mouthpiece holder, and a protrusion of the mouthpiece is inserted into the mouthpiece holder to protect the mouthpiece. And is a light source device that reads the discharge lamp individual information.

1 is a conceptual diagram of a light source device according to a first embodiment of the present invention. And the display reading portion and the discharge lamp display portion face each other. In Fig. 1, the positive electrode 1 is a positive electrode. And the negative electrode 2 is a negative electrode. The inner lead rod 3 is a member that supports the electrode to supply power. The metal foil 4 is a member for electrically connecting the inner lead rod and the outer lead rod. The sealing tube portion 5 is a portion for hermetically sealing the valve. The outer lead rod 7 is a member that feeds the metal from the mouthpiece to the electrode through the metal foil. The light emitting portion 9 is a portion that emits light by discharge between the electrodes. The arc tube (10) is a glass member which seals the electrode to form a discharge space. The mouthpiece 20 is a member for supplying and supplying the discharge lamp mechanically. The cylindrical portion 21 is a large-diameter portion of the mouthpiece. The projection 23 is a small-diameter portion of the mouthpiece. The display unit 30 is a member that protects the individual information of the discharge lamp. The mouthpiece holder 40 is a member for protecting the mouthpiece. The shield 50 is a hollow box-shaped member. The display reading unit 60 is an information reading means for reading and writing the display of the individual information of the discharge lamp.

The discharge lamp includes an arc tube 10 composed of a light emitting portion 9 and two sealing tube portions 5 and an anode 1 and a cathode 2 arranged opposite to each other in the light emitting portion 9, An inner lead rod 3 for supporting the cathode 2 and energizing the outer lead rod 7 and an outer lead rod 7 connecting the inner lead rod 3 and the outer lead rod 7 with the conductive metal foil 4 And a sealing tube portion 5 for hermetically sealing. Further, the seal cap 20 is fixed to the sealing tube portion 5. And the mouthpiece 20 is fixed to the other sealing tube portion 5. The mouthpiece 20 includes a cylindrical portion 21 for protecting the sealing tube, a cylindrical end face 22 provided continuously to the cylindrical portion, a protruding portion 23 and a protruding portion 23 which are formed in the end face of the cylindrical portion, As shown in Fig. The display unit 30 is a part for protecting individual information of the discharge lamp. The mouthpiece holder 40 is fixed to the light source device. The mouthpiece holder (40) is made up of a shielding body (50) in which a display reading unit (60) is disposed.

The shield 50 is made of metal such as aluminum and can block light from the light source. An insulating material is interposed between the mouthpiece 20 and the shielding body 50 or between the marking unit 60 and the shielding body 50. [ Or all or a part of the shield 50 may be made of an electrically insulating material and electrically shielded by covering the outer periphery thereof with a conductive mesh or the like. The shape of the shield 50 may be a proper shape, a polygonal shape such as a cube or a rectangular parallelepiped, or a cylindrical shape or a spherical shape.

2 (A) is a side view of a mouthpiece having a display portion of a discharge lamp. 2B is a bottom view of the mouthpiece having a display portion of the discharge lamp. Fig. 3 (A) is a vertical sectional view showing a state in which the display reading portion of the light source device and the display portion of the mouthpiece face each other. 3 (B) is a display example of the display section. Fig. 3 (C) is a flowchart showing the processing procedure at the time of mounting the discharge lamp. 2 and 3, the mouthpiece holder 40 is a member for protecting the discharge lamp by coming into contact with the cylindrical end face 22 of the mouthpiece. The lid part (51) is an upper lid part of the shielding body. Side portion 52 is the side wall portion of the shield. The bottom portion 53 is the bottom portion of the shield. The hole portion 54 is a through hole provided in the cover portion. The shielding space 55 is an inner space of the shielding body. The supply pipe 56 is a pipe for supplying the temperature control medium to the inside of the shielding body. The outlet 57 is an outlet for discharging the temperature control medium to the outside of the shielding body. The temperature control medium is air adjusted to a temperature suitable for the display portion and the display reading portion by a temperature control means (not shown). The signal line 61 is a conductive line for transmitting an electric signal.

The function and operation of the light source apparatus according to the first embodiment of the present invention constructed as above will be described with reference to Figs. 1 to 3. Fig. Next, an outline of functions of the light source apparatus will be described with reference to Fig. The light source unit is fixed to the mouthpiece 20 of the arc tube 10 in the display reading unit 60 inside the shield 50 while the mouthpiece holder 40 protects the mouthpiece 20. [ And obtains the lamp information by reading the display of the display section 30. [ The temperature control medium is introduced into the inner space of the shielding body 50 to cool the display unit 30 and the display reading unit 60. The shield 50 formed of metal is provided with a member that electrically insulates the mouthpiece 20 from the mouthpiece 20 or a member that electrically isolates the display-and-docking unit 60. In the case of the shield 50 made of an insulator, it is covered with an electrical seal. A direct current power is supplied from a power source (not shown) to the discharge lamp through the mouthpiece 20 to discharge between the cathode 2 and the anode 1.

Next, the display unit and display docking unit will be described with reference to Figs. 2 and 3. Fig. A display section (30) is provided at an end of the projection (23) of the mouthpiece (20) to protect individual information on the discharge lamp. The mouthpiece holder 40 fixed to the light source unit is constituted by a shielding body 50 provided with a display reading unit 60 therein. The shield 50 includes a bottom portion 53 fixed to the light source device, a side portion 52 serving as a side wall of the shield, and a cover portion 51 protected at the bottom portion through the side portion. The shielding space 55 is formed by covering the cover portion 51, the side portion 52 and the bottom portion 53 with each other. The lid portion (51) has a hole portion (54). The protruding portion 23 of the mouthpiece 20 is inserted into the hole 54 and the cylindrical end face 22 of the mouthpiece 20 is brought into contact with the lid portion 51, The device is protected. The mouthpiece 20 may be fixed to the mouthpiece holder 40 with screws or the like.

A display reading unit 60 is fixed to the bottom 53 of the shield 50. [ The display reading unit 60 transmits the discharge lamp individual information or the like to the light source device control unit not shown through the signal line 61. [ The individual information of the discharge lamp is information including either the discharge lamp information, the transportation history information or the lighting history information. The discharge lamp information includes the date of manufacture, manufacturer's name, manufacturing site, manufacturing line, discharge lamp type, product number, load number, identification number, rated discharge lamp current, rated discharge lamp voltage, cooling conditions, , Or a combination thereof. The transportation history information is either factory shipment date and time, warehouse receipt, shipment date and time, dealer arrival date, shipment date and time, shipment date, transportation company name, shipment document number, or person in charge. The lighting history information is any one of a lighting start date and time, an unlit date and time, a date and time of re-lighting, a lighting condition, a blinking frequency, a cumulative lighting time, a device object number, a device setting, a device error information,

Characters, symbols, symbols, figures, shapes, and the like as shown in Fig. 3 (B) are used as means for optically displaying the individual information of the discharge lamp on the display unit 30. Fig. Marks of manufacturers may be displayed. The individual information of the discharge lamp is represented by a difference in reflectance of light or a combination of a regular reflection portion and a diffuse reflection portion. The display of the display section 30 can be formed by cutting, engraving, engraving, etching, irradiation of a laser beam, or the like. It is also possible to form a concave portion in advance on the end face of the cylindrical portion of the mouthpiece 20 and to attach the plate in which the discharge lamp individual information is displayed on the concave portion. It is possible to visually confirm that the discharge lamp is a discharge lamp suitable for the light source device if the user of the discharge lamp displays it in a character or figure that can be seen. In the case of protecting a large amount of information that can not be directly displayed, a method of displaying the identification information by using a bar code or a two-dimensional code and obtaining the substance of the information via the network is appropriate.

As a means for optically reading the display of the display unit 30, the display reading unit 60 is provided with a light source such as an LED and image reading means such as a CCD. The image signal of the read display is subjected to image processing, and pattern recognition and character recognition are performed. Data such as the property of each discharge lamp, the setting specification of the discharge lamp, and the like are taken out as necessary. Based on the discharge lamp based on this data, it is automatically determined whether or not the discharge lamp is a discharge lamp suitable for the light source apparatus. Further, new information may be additionally written in the display section 30 using a laser or the like. As a result of reading the discharge lamp individual information, if the discharge lamp is a correct discharge lamp, power is supplied to the discharge lamp, and the discharge lamp is turned on. Fig. 3 (C) shows an example of procedures from information setting to lighting control.

Next, a cooling method of the shielded space will be described with reference to Fig. 3 (A). The side portion 52 of the shield body 50 is provided with a supply pipe 56 for supplying the temperature control medium S to the shielding space 55 and a discharge port 57 for discharging the temperature control medium S to the outside, And a hole passing through the signal line 61 connected to the mounting portion 60 is provided. The temperature control medium S may be nitrogen gas, air, or a liquid such as liquid nitrogen. The direction in which the temperature control medium S is discharged from the supply pipe 56 is set so that the temperature control medium is blown into both the display portion 30 and the display reading portion 60. [ A plurality of supply pipes 56 may be provided and blown into each of them. The supply pipe 56 and the discharge port 57 may be provided on the bottom 53 or the lid 51 of the shield 50. The temperature control medium S is supplied to the shielding space 55 inside the shielding body 50 so that the display unit 30 and the display reading unit 60 can be used at appropriate temperatures even when the discharge lamp is turned on. A temperature sensor may be provided in the shielding space 55 and the flow rate or temperature of the temperature control medium S may be adjusted. The temperature control medium S may be circulated without being discharged into the light source device. Further, a part or all of the shield 50 is constituted by a heat insulating member and shields the heat of the mouthpiece 20. Or the shield 50 is covered with a heat insulating material or a heat ray reflecting member. Further, the outer surface of the shield 50 is mirror-faced to reflect the heat ray from the discharge lamp. In this way, the shielding space 55 inside the shield 50 can be maintained at a suitable temperature more easily. Since the shielding space 55 is thermally shielded as described above, the display portion 30 and the display reading portion 60 can maintain high reliability over a long period of time.

Next, a method of electromagnetic shielding of the shielded space will be described with reference to Fig. 3 (A). The shield 50 is made of metal such as aluminum. All or a part of the shield body 50 is electrically insulated from the mouthpiece 20 by using an insulating material. Or the shielding body 50 is made of an insulator so that all or a part of the shielding body 50 is covered with a conductive member such as a conductive net. In this manner, the shielding space 55 is electromagnetically shielded and the display unit 30 and the display reading unit 60 are protected against electrical and optical interference from the discharge lamp. That is, the display reading unit 60 is protected from a start pulse of a strong high voltage at the start of the discharge lamp lighting, shields light including strong ultraviolet rays and infrared rays from the discharge lamp, and deteriorates the display reading unit 60, 30) of the display. As a result, the display reading unit 60 can correctly read the display of the display unit 30 over a long period of time.

As described above, according to the first embodiment of the present invention, the light source device is electromagnetically shielded and forcedly cooled, the display reading unit is installed inside the mouthpiece holder, and the projection of the mouthpiece is inserted into the mouthpiece holder to protect the mouthpiece It is possible to read the discharge lamp individual information for a long period of time with high reliability by protecting the display portion and the display reading portion from the heat of the lamp, the light or the high voltage, because the discharge lamp individual information of the display portion in the protruding portion is read.

[Example 2]

In the second embodiment of the present invention, a temperature control medium is discharged from a plurality of grooves and forcedly cooled, a reader / writer is installed inside an electromagnetic shielded holder, and a protrusion of the mouthpiece is inserted into the mouthpiece holder, And writes the discharge lamp individual information of the IC tag in the protruding portion in a protected state.

4 (A) is a side view of a mouthpiece having an IC tag. 4 (B) is a bottom view of the mouthpiece having the IC tag. 5 (A) is a longitudinal sectional view showing a state in which the reader / writer of the light source device and the IC tag of the mouthpiece face each other. Fig. 5B is a cross-sectional view taken along the line A-A in Fig. 5A. 4 and 5, description of the same parts as those of the first embodiment will be omitted. The protrusion 123 is a small neck portion of the mouthpiece. The IC tag 130 is a non-power source IC chip that protects individual information of the discharge lamp. The cap 223 is a conventional cap having a circular bottom surface for protecting the IC tag 130 against the tip of the protrusion 123. The reader / writer 160 is a device for reading information about the discharge lamp protected in the IC tag and information about transportation. The discharge groove 157 is provided in the lid part 151 and connects the outside of the mouthpiece holder 140 to the hole part 54. [

The IC tag 130 is an IC tag having an IC chip and an antenna section. The reader / writer 160 is a device for reading and writing the discharge lamp individual information of the IC tag. The IC chip has a storage device. Individual information of the discharge lamp is stored in the storage device. The reader / writer reads and writes information of the storage device through the antenna section.

The function and operation of the light source device according to the second embodiment of the present invention will be described with reference to FIGS. 4 and 5. FIG. First, a method of reading and writing an IC tag with a reader / writer will be described. A cap 223 is fitted to the end of the protrusion 123. The IC tag 130 is protected by the cap 223. The IC tag 130 reads and writes information about the discharge lamp and information about transportation by the reader / writer 160. Since the IC tag 130 carries out radio wave communication with the reader / writer 160, the cap 223 is made of a material easily permeable to radio waves. Further, when the discharge lamp is turned on, the cap 223 is made of an insulating material, and a fluororesin such as Teflon (registered trademark) is used because the cap 223 is energized. The IC tag 130 can be protected from the high voltage applied to the mouthpiece 120 by using the cap 223 made of an insulating material. In particular, it is necessary to protect against a strong start pulse at the start of lighting. As a result of reading the individual information of the discharge lamp, if the discharge lamp is a correct one, power is supplied to the discharge lamp to turn on the discharge lamp.

Next, a method of cooling the IC tag and the reader / writer will be described. Four discharge grooves 157 are provided in the lid 151. When the mouthpiece portion 154 is attached to the mouthpiece holder 140 and the circular section 22 of the mouthpiece portion 120 is in contact with the lid portion 151 of the mouthpiece holder 140, Is opened to the outside of the mouthpiece holder 140 through the discharge groove 157. The temperature control medium S supplied into the shielding space 55 from the supply pipe 56 cools the reader / writer 160 disposed in the shielded space and supplies the coolant through the gap between the protrusion 123 and the hole 154 And flows between the end surface 22 of the cylindrical portion of the cover 120 and the lid 151. At this time, since the flow of the temperature control medium S is concentrated on the gap between the protrusion 123 and the hole 154, the cap 223 can be concentrated and cooled. Deterioration or breakage of the IC tag 130 due to thermal deformation or heat of the cap 223 can be effectively prevented. The temperature control medium S flowing between the cylindrical end face 22 of the mouthpiece 120 and the lid 151 cools the cylindrical portion 21 and the lid portion 151 of the mouthpiece 120 And is discharged to the outside of the mouthpiece holder 140 from the discharge groove 157.

The temperature control medium S supplied to the inside of the shielding body 150 firstly cools the reader / writer 160 and secondly the IC tag 130, the cap 223, and the protrusion 123, Thirdly, the lid portion 151 and the cylindrical portion 21 of the mouthpiece 120 are cooled and discharged to the outside of the mouthpiece holder 140. Therefore, cooling of the toothpaste holder 140 is efficiently performed. Since a plurality of discharge grooves 157 of the temperature control medium S are provided so as to be even in the circumferential direction of the mouthpiece 120, the cross section of the cylindrical portion 21 of the mouthpiece 120 can be cooled have. Therefore, it is possible to prevent the inside of the lid part 151 and the shielding body 150 from becoming hot. Since the contact area between the cylindrical end face 22 of the mouthpiece 120 and the lid part 151 is narrowed, the heat transfer from the cylindrical end face 22 of the mouthpiece 120 to the lid part 151 of the shielding body 150 Can be reduced. This cooling method can also be applied to the case where the optical display as in the first embodiment is read, and the same effect can be obtained. Further, the IC tag 130 and the reader / writer 160 are electromagnetically shielded as in the first embodiment. The reader / writer 160 can read and write the IC tag accurately over a long period of time because the shielding body 150 is protected from electromagnetic noise and thermally shielded.

As described above, in the second embodiment of the present invention, the light source unit is forcedly cooled by exhausting the temperature control medium from a plurality of grooves, and a reader / writer is installed inside the magnetically shielded keyhole holder, and the protrusion of the keyhole is fixed to the keyhole holder The IC tag and the reader / writer are protected from the heat of the lamp, the light or the high voltage, and the individual information of the discharge lamp is stored for a long period of time And can be read with high reliability throughout.

[Example 3]

In the third embodiment of the present invention, a gap is provided between the mouthpiece and the mouthpiece holder to protect the mouthpiece, a temperature control medium is discharged from the gap, and the mouthpiece is forcedly cooled to install a reader / writer inside the electromagnetic- The light source unit reads and writes the individual information of the discharge lamp of the IC tag in the protrusion with the protrusion of the mouthpiece inserted into the mouthpiece holder to protect the mouthpiece.

6 (A) is a longitudinal sectional view showing a state in which the reader / writer of the light source device is arranged to face the IC tag. 6 (B) is a cross-sectional view taken along line B-B of Fig. 6 (A). In Fig. 6, the mouthpiece protecting portion 241 is a member for protecting the discharge lamp by coming into contact with the cylindrical end face 22 of the mouthpiece. The hole portion 254 is a through hole provided in the mouthpiece protecting portion. The discharge port 257 is a through hole provided in the cover portion of the shielding body. The columnar section 242 is a member for supporting the mouthpiece protecting section 241 with respect to the shielding body 250 and four equally spaced on the lid section 251 in the circumferential direction of the mouthpiece. The mouthpiece holder 240 fixed to the light source device includes a shielding body 250 provided with a reader / writer 160 therein and four equally spaced in the circumferential direction of the mouthpiece 220 on the cover of the shielding body 250 And a protector 241 supported by the post 242 and the post 242. The mouthpiece protecting portion 241 has a hole portion 254.

The function and operation of the light source device in the third embodiment of the present invention constructed as above will be described with reference to Fig. When the discharge lamp is attached to the light source device, the protrusion 123 of the mouthpiece 220 provided at the end of the IC tag 130 protecting the individual information about the discharge lamp is inserted into the hole of the mouthpiece protective portion 241 254). Further, the cylindrical end face 22 of the mouthpiece 220 is in contact with the mouthpiece protecting portion 241 to protect the discharge lamp in the light source device. The mouthpiece 220 may be fixed to the mouthpiece protecting portion 241 with screws or the like. The gap between the cap 223 and the discharge port 257 of the lid unit 251 may be large because the discharge lamp is attached by the hole 254 of the mouthpiece protection unit 241 with good positional reproducibility.

However, if the cap 223 is made of Teflon (registered trademark), the portion of the cap 253 contacting the cylindrical inner surface of the hole 254 of the mouthpiece protecting portion 241 may be deformed into heat during use . Therefore, in order to improve position reproducibility, the portion of the mouthpiece 220 contacting the cylindrical upper surface of the hole 254 of the mouthpiece protecting portion 241 is formed of a hard metal protrusion 123 integrally formed with the mouthpiece cylinder portion do. If the portion of the shielding body 250 near the cylindrical inner surface of the discharge port 257 of the cover 251 is the metal protrusion 123, the inner surface of the discharge port 257 of the cover 251 and the inner surface of the mouthpiece 220 A discharge may occur between the protruding portions 123 of the discharge cells. Therefore, a portion of the cover member 251 near the cylindrical inner surface of the discharge port 257 of the shielding body 250 is made of a cap 223 of electrical insulation. In this way, it is possible to insulate the mouthpiece 220 from the shielding body 250 without using the insulating member in the lid part 251 of the shielding body 250.

The configuration of insulating the mouthpiece 220 with the shielding body 250 complicates the structure of the shielding body 250. But also weakens against thermal deformation and weakens the strength of supporting the weight of the discharge lamp. The protector 241 and the shield 250 can be made stronger by insulating the protector 250 with the pillar 242 and the like. By configuring the shielding member 250 as a metal, electromagnetic waves radiated from the discharge lamp can be reliably shielded. Moreover, the heat transmitted from the mouthpiece 220 to the shielding body 250 can be reduced by connecting the mouthpiece protecting portion 241 and the shielding body 250 with only the column portion 242 having a good thermal conductivity.

The temperature control medium S supplied from the supply pipe 56 cools the reader / writer 160 installed in the shielding space 55 and the clearance between the cap 223 and the discharge port 257 of the lid unit 251 And flows between the mouthpiece protecting portion 241 and the lid portion 251 through the opening. At this time, since the flow of the temperature control medium S is concentrated on the gap between the cap 223 and the discharge port 257, the cap 223 can be concentrated and cooled. Therefore, thermal deformation of the cap 223 and thermal deterioration or breakage of the IC tag 130 are effectively prevented. The temperature control medium S flowing from between the mouthpiece protector 241 and the cover 251 cools the cover 251 and the mouthpiece protector 241 of the shielding body 250, And is discharged to the outside of the mouthpiece holder 240 through the gap with the mouthpiece holder 240.

The temperature control medium S supplied to the inside of the shielding body 250 firstly cools the reader / writer 160 and secondly the IC tag 130 and the cap 223 and the protrusion 123, Thirdly, the upper surface of the lid part 251 and the lower surface of the protector 241 are cooled, and the fourth part is cooled to cool the pillar part 242 and is discharged to the outside of the mouthpiece holder 240. Therefore, the mouthpiece holder 240 can be efficiently cooled. This cooling method can be applied to the case where the optical display is read. The method of shielding the IC tag 130 and the reader / writer 160 from the light of the lamp is the same as in the first and second embodiments.

As described above, according to the third embodiment of the present invention, the light source device is protected by providing a gap between the mouthpiece and the mouthpiece holder, while the temperature control medium is exhausted for forced cooling, and is housed in the space inside the electromagnetically shielded mouthpiece holder By inserting the IC tag and reading and writing the individual information of the discharge lamp, it is possible to protect the IC tag and the reader / writer from the heat of the lamp, the light and the high voltage, and to read and write the individual information of the discharge lamp with high reliability for a long time.

[Example 4]

In the fourth embodiment of the present invention, a display reading unit is provided inside an internally shielded and forcedly cooled mouthpiece holder, a protrusion of the mouthpiece and a positioning bar are inserted into the mouthpiece holder to protect the mouthpiece. And the discharge lamp individual information of the display portion at the tip end of the positioning convex portion of the light source unit.

7 (A) is a side view of a mouthpiece having a display portion on a convex portion. 7 (B) is a bottom view of a mouthpiece having a display portion on a convex portion. As shown in the side view (A) and the bottom view (B) of FIG. 7, the positioning convex portion 324 is formed in the cylindrical end face 22 of the mouthpiece 320. And the display portion 330 is provided on the distal end face of the positioning convex portion 324. [ 8 (A) is a longitudinal sectional view showing a state in which the display reading portion of the light source device is arranged to face the display portion. 8 (B) is a cross-sectional view taken along line C-C of Fig. 8 (A). 8, the lid portion 351 of the shielding body 350 is provided with a positioning hole portion 354 for inserting the positioning recessed portion 324 in addition to the hole portion 354 for inserting the projected portion 323 of the mouthpiece 320, (358). Even if the cylindrical end face 22 of the mouthpiece 320 is in contact with the lid portion 351 of the mouthpiece holder 340, the positioning hole portion 354 is not blocked, As shown in Fig. With this configuration, it is possible to determine the position when the discharge lamp is attached to the light source apparatus.

The function and operation of the light source device in the fourth embodiment of the present invention constructed as above will be described with reference to Figs. 7 and 8. Fig. First, a method of reading lamp information will be described. Basically, it is the same as the case of the first embodiment. The display portion 330 is located on the distal end face of the positioning convex portion 324. The protrusion 323 of the mouthpiece 320 is inserted into the hole 354 of the mouthpiece holder 340. The positioning convex portion 324 is inserted into the positioning hole portion 358 for positioning the lamp. When the mouthpiece 320 is fixed to the mouthpiece holder 340, the display portion 330 comes to a position opposite to the display docking portion 60. In this state, the display reading unit 60 reads the display of the display unit 330 and acquires the lamp information.

Next, the shielding and cooling methods are described. A member for electrically insulating the positioning convex portion 324 from the shield 350 formed of metal is provided. In the case of the shield 350 made of an insulator, the shield 350 is covered with an electrical seal. The other basic parts of the shielding method are the same as those of the first embodiment. The temperature control medium S flows into the inner space of the shielding body 350 and the display unit 330 and the display reading unit 60 are cooled. The temperature control medium S supplied into the shielding space 55 from the supply pipe 56 is cooled by cooling the display reading unit 60 disposed in the shielded space and the positioning recessed portion 324 and the positioning hole And flows into the space between the cylindrical end surface 22 of the mouthpiece 320 and the lid portion 351 through the gap between the lid portion 351 and the portion 358. The flow of the temperature control medium S is concentrated on the gap between the positioning convex portion 324 and the positioning hole portion 358 of the lid portion 324 so that the display portion 330 can be concentrated and cooled. Accordingly, it is possible to effectively prevent deterioration or discoloration of the display portion 330 due to heat. The temperature control medium S flowing between the cylindrical end face 22 of the mouthpiece 320 and the lid portion 351 is released to the outside of the mouthpiece holder 340. Therefore, the display portion 330 and the display reading portion 60 can be efficiently cooled. This cooling method can be applied to the case where the IC tag and the reader / writer are used.

As described above, according to the fourth embodiment of the present invention, the display reading and reading unit is installed in the inside of the mouthpiece holder which is electromagnetically shielded by forcibly cooling the light source unit, the protrusion of the mouthpiece and the positioning iron are inserted into the mouthpiece holder, It is possible to protect the display unit and the display unit from the heat of the lamp, light or high voltage, so that the individual information of the discharge lamp can be read over a long period of time It can be read with high reliability.

[Industrial Availability]

The light source device of the present invention is optimal as a light source device for protecting the individual information reading portion for reading the individual information provided in the discharge lamp.

BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is an external view showing a state in which a display reading portion of a light source device according to Embodiment 1 of the present invention is disposed to face a display portion of a discharge lamp; FIG.

FIG. 2 is an external view of a light source device according to Embodiment 1 of the present invention in a state where a display portion is provided at a mouth portion of a discharge lamp. FIG.

Fig. 3 is a flow chart of a vertical section, a display example, and a reading section showing a state in which the display reading section of the light source device according to the first embodiment of the present invention is disposed to face the display section of the discharge lamp.

Fig. 4 is an external view of a light source device according to a second embodiment of the present invention in which an IC tag is provided at a mouth portion of a discharge lamp; Fig.

5 is a longitudinal sectional view showing a state in which the reader / writer of the light source device according to the second embodiment of the present invention is arranged to face the IC tag.

Fig. 6 is a longitudinal sectional view showing a state in which the reader / writer of the light source device according to the third embodiment of the present invention is arranged to face the IC tag. Fig.

Fig. 7 is an external view of a light source device according to a fourth embodiment of the present invention in a state where a display portion is provided at a mouth portion of a discharge lamp; Fig.

8 is a longitudinal sectional view showing a state in which the display reading portion of the light source device according to Embodiment 4 of the present invention is arranged to face the display portion.

9 is a conceptual diagram of a conventional light source device.

[Description of Drawings]

1: anode 2: cathode

3: inner lead rod 4: metal foil

5: sealing tube part 7: outer lead rod

9: light emitting portion 10: light emitting tube

20, 120, 220, 320: a mouthpiece 21: a cylindrical portion

22: a cylindrical end surface 23, 123, 323:

30, 330: display portion 40, 140, 240, 340: keyhole holder

50, 150, 250, 350: a shielding body 51, 151, 251, 351:

52: side portion 53: bottom portion

54, 154, 254, 354: hole portion 55: shielded space

56: Supply pipes 57, 257, 357: Outlets

157: discharge groove 60: display docking part

61: Signal line 130: IC tag

160: Reader / writer 223: Cap

324: Positioning projection 241:

242: column portion 358: positioning hole portion

S: Temperature control medium

Claims (7)

A light source unit comprising a light emitting tube having a vertically fixed tip for holding an information holding means for holding lamp information; a keyhole holder for holding the keyhole; and an information reading means for reading information of the information holding means In the light source device, Wherein the mouthpiece holder comprises a shield which has a mouthpiece insertion portion into which the mouthpiece is inserted and which houses the information reading means in an inner space, and the information reading means is arranged to move the information reading means in a state where the mouthpiece holder protects the mouthpiece Wherein the light source device is provided at a position opposite to the information holding means. The method according to claim 1, And a means for introducing and discharging the temperature control medium for cooling the information reading means and the information holding means into the internal space of the shielding body. 3. The method according to claim 1 or 2, Wherein the shielding member is made of metal, and a member for electrically insulating between the shielding member and the mouthpiece is provided. 3. The method according to claim 1 or 2, Characterized in that the shielding member is made of metal and a member for electrically insulating the information reading means is provided. 3. The method according to claim 1 or 2, Characterized in that the shield is composed of an insulator and is covered by an electrical seal. 3. The method of claim 2, Wherein the temperature-sensitive medium holder has a plurality of grooves for discharging the temperature-controlling medium on a surface thereof which is in contact with the temperature-sensitive device. 3. The method according to claim 1 or 2, Wherein the mouthpiece holder includes a mouthpiece protector for holding the mouthpiece and a post for supporting the mouthpiece protector.

Images