WO2012124053A1 - 光源装置および投写型表示装置 - Google Patents
光源装置および投写型表示装置 Download PDFInfo
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- WO2012124053A1 WO2012124053A1 PCT/JP2011/056018 JP2011056018W WO2012124053A1 WO 2012124053 A1 WO2012124053 A1 WO 2012124053A1 JP 2011056018 W JP2011056018 W JP 2011056018W WO 2012124053 A1 WO2012124053 A1 WO 2012124053A1
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- WIPO (PCT)
- Prior art keywords
- port
- light source
- source device
- region
- valve
- Prior art date
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/16—Cooling; Preventing overheating
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V7/00—Reflectors for light sources
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/20—Lamp housings
- G03B21/2006—Lamp housings characterised by the light source
- G03B21/2026—Gas discharge type light sources, e.g. arcs
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/52—Cooling arrangements; Heating arrangements; Means for circulating gas or vapour within the discharge space
- H01J61/523—Heating or cooling particular parts of the lamp
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J7/00—Details not provided for in the preceding groups and common to two or more basic types of discharge tubes or lamps
- H01J7/24—Cooling arrangements; Heating arrangements; Means for circulating gas or vapour within the discharge space
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3141—Constructional details thereof
- H04N9/3144—Cooling systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3141—Constructional details thereof
- H04N9/315—Modulator illumination systems
Definitions
- the present invention relates to a light source, and more particularly to a light source cooling mechanism.
- a discharge lamp such as a high-pressure mercury lamp, a metal halide lamp, or a xenon lamp is used as a light source of the projection display device. These discharge lamps emit light by arc discharge generated in the arc tube.
- the arc tube has a substantially spherical light emitting portion (bulb), a pair of rod-shaped sealing portions, and a pair of electrodes facing each other. Further, the rear end of the electrode is held by a sealing portion, and the front end is disposed in the bulb. Furthermore, a foil-like conductive member connected to the rear end of the electrode is enclosed in the sealing portion.
- the arc (electric arc) extends in the direction opposite to the direction of gravity at that time.
- the temperature of the upper part of the valve in the gravity direction is higher than the temperature of the lower part of the valve in the same direction. Therefore, even if the upper and lower parts of the valve are evenly cooled, the temperature of the entire valve cannot be kept uniform.
- the temperature of the bulb becomes lower than the predetermined temperature, the luminance is reduced, flicker occurs, or blackening occurs. Also, the life of the discharge lamp is shortened when blackening occurs. Furthermore, when the temperature of the contact portion between the sealing portion and the conductive member becomes higher than the appropriate temperature, the oxidation of the conductive member is promoted, and the arc tube may be ruptured or a lighting failure may occur.
- the projection display device is installed in various positions in various postures.
- the projection display device may be installed on a floor or a table (first installation state).
- the projection display device may be suspended from the ceiling (second installed state).
- the projection display device is not only placed parallel to the floor etc., but may also be placed perpendicular to the floor etc. or may be placed obliquely. is there.
- the projection display device is not only suspended parallel to the ceiling, but also suspended vertically or tilted with respect to the ceiling. Sometimes it is.
- the attitude of the projection display apparatus changes as described above, the attitude of the light source (discharge lamp) built in the apparatus also changes. And if the attitude
- the position of the high temperature part and the low temperature part on the bulb differ by 180 degrees between when the projection display device is placed parallel to the floor and when it is suspended parallel to the ceiling. Further, the position of the high temperature portion and the low temperature portion on the bulb differs by 90 degrees between when the projection display device is placed parallel to the floor and when it is placed vertically. Therefore, even if only one specific location on the valve is cooled, the temperature of the entire valve cannot be kept uniform.
- the first duct for supplying cooling air to the upper part in the gravity direction of the valve when the projection display device is in the first installation state, and the projection display device are installed in the second configuration.
- a light source device is described that includes a second duct for supplying cooling air to the upper part of the bulb in the gravity direction when in a state.
- a shielding member that reciprocates due to its own weight is provided at the entrance of the first duct and the second duct facing the fan.
- Patent Document 2 describes a light source device in which cooling air is circulated inside a reflector surrounding an arc tube.
- the light source device described in Patent Document 1 does not function when the projection display device is installed in a posture in which the shielding member does not reciprocate due to its own weight. For example, when the projection display device is placed perpendicular to the floor or suspended perpendicular to the ceiling, the shielding member does not move and the duct is not switched. Further, since the light source device described in Patent Document 1 requires two ducts, it is difficult to reduce the size of the device.
- the light source device of the present invention has a lamp unit including an arc tube that emits light by arc discharge and a reflector that surrounds the arc tube. Furthermore, the light source device of the present invention closes the opening of the reflector, holds the lamp unit, a duct member overlaid on the front surface of the holder, a front surface of the holder, and a rear surface of the duct member. And a plurality of port groups provided in the holder, each port group communicating between the inside of the reflector and the flow path. And a plate member that is provided for each port group and that selectively opens and closes the two or more ports included in each port group. The plurality of port groups are arranged around the central axis of the arc tube so as to surround the central axis. The plate member rotates by its own weight according to the change in the posture of the light source device, and opens part of the two or more ports included in the port group and closes the other part.
- the projection display device of the present invention has the light source device of the present invention.
- the temperature of the entire arc tube is kept substantially uniform regardless of the posture of the light source device or the projection display device.
- FIG. 1 is an external perspective view of a projection display device 1 to which the present invention is applied.
- FIG. 2 is a perspective view showing the main internal structure of the projection display apparatus 1.
- the projection display device 1 includes a housing 4 including a lower cover 2 and an upper cover 3, and a projection lens 5 is disposed on the front surface of the housing 4.
- the projection display device 1 includes a lamp box 10, an optical engine 11, and a blower device 12.
- a lamp unit 20 shown in FIGS. 3A and 3B is accommodated in the lamp box 10.
- the light emitted from the lamp unit 20 is emitted via the projection lens 5 after passing through the optical engine 11.
- the optical engine 11 is provided with a plurality of optical elements, and light incident on the optical engine 11 is subjected to various optical processes in the process of passing through the optical elements.
- the lamp unit 20 includes a reflector base 21, an arc tube 22 held by the reflector base 21, and a reflector 23 that extends from the reflector base 21 and surrounds the arc tube 22.
- the arc tube 22 includes a substantially spherical light emitting portion (bulb 24), rod-like sealing portions 25a and 25b extending from the bulb 24 in opposite directions, and a pair of electrodes (not shown) facing each other. The rear ends of the electrodes are respectively held by the sealing portions 25 a and 25 b, and the tips are disposed in the bulb 24. In the sealing portions 25a and 25b, a foil-like conductive member (not shown) connected to the rear end of the electrode is enclosed.
- the arc tube 22 (sealing portion 25b) is fixed to the reflector base 21 with an adhesive mainly composed of an inorganic material.
- the reflection surface 23a of the reflector 23 is an elliptical rotation surface.
- the bulb 24 of the arc tube 22 is disposed at the first focal point on the rotational symmetry axis of the reflecting surface 23a.
- the reflecting surface 23a condenses the light emitted from the arc tube 22 on the second focal point on the rotational symmetry axis.
- the light emission direction from the lamp box 10 shown in FIG. 2 is different from the light emission direction from the projection lens 5 by 90 degrees. That is, the central axis of the arc tube 22 and the rotational symmetry axis of the reflecting surface 23a coincide, and the rotational symmetry axis of the reflecting surface 23a and the optical axis of the projection lens 5 are orthogonal.
- the arc generated in the bulb 24 of the arc tube 22 extends in the direction opposite to the direction of gravity.
- the arc extends upward in FIG. 3A. Therefore, the temperature at the upper part in the gravity direction of the valve 24 is higher than that at the lower part in the same direction.
- the upper part of the valve 24 in the direction of gravity is referred to as “the upper part of the valve”
- the lower part of the valve 24 in the direction of gravity is referred to as “the lower part of valve”.
- valve upper part the upper part in the vertical direction of the valve 24
- the lower part in the vertical direction of the valve 24 is referred to as “valve lower part”.
- the portion of the bulb 24 that corresponds to the upper portion of the bulb and the portion that corresponds to the lower portion of the bulb vary depending on the posture of the lamp unit 20 (projection display device 1). For example, a portion that was at the upper part of the valve in a certain posture becomes a lower portion of the valve in another posture. In addition, the portion that was in the upper part of the valve in a certain posture disappears neither in the upper part of the valve nor in the lower part of the valve in another posture.
- FIG. 4 is a perspective view of the lamp box 10 and the blower 12.
- the air blower 12 in this embodiment is a sirocco fan. But the air blower 12 is not restricted to a sirocco fan, For example, an axial-flow fan may be sufficient.
- the sirocco fan 12 is held by a box-shaped structure 30.
- the cooling air sent from the sirocco fan 12 passes through a flow path (not shown) formed in the structure 30 and a connection flow path 31 that connects the structure 30 and the lamp box 10 to the lamp box 10. Flow into.
- the cooling air flowing into the lamp box 10 mainly cools the arc tube 22 (FIGS. 3A and 3B).
- FIG. 5A and 5B are perspective views of the lamp box 10.
- FIG. FIG. 6 is an exploded perspective view of the lamp box 10.
- the lamp box 10 includes a substantially rectangular parallelepiped main body 40 in which the lamp unit 20 is accommodated, a holder 41 that covers the opening 40 a of the main body 40, and a duct member 42 that covers the holder 41. Note that a second opening 40b and a third opening 40c are provided on opposite side walls of the main body 40, respectively.
- the 2nd ventilation part 13 (FIG. 2) is provided in the 2nd opening part 40b.
- the cooling air sent out from the second blower 13 mainly cools the reflector 23 and flows out from the third opening 40c.
- the flange 26 extending from the reflector 23 is in contact with the back surface of the holder 41.
- the opening 27 of the reflector 23 of the lamp unit 20 is closed by the holder 41.
- a circular window 43 for taking out light emitted from the lamp unit 20 is formed in the center of the holder 41, and an explosion-proof glass 44 is fitted into the window 43.
- substantially ring-shaped ribs 51, 52, 53, 54 are formed on the front surface of the holder 41 so as to surround the window 43.
- the ribs 51 to 54 are arranged at equal intervals (90-degree intervals) on an arc centered on the center of the window 43.
- a circular area surrounded by the ribs 51 is referred to as a first area 61.
- the circular region surrounded by the ribs 52 is the second region 62
- the circular region surrounded by the ribs 53 is the third region 63
- the circular region surrounded by the ribs 54 is the fourth region. 64. It is obvious that the regions 61 to 64 are arranged at equal intervals (90 ° intervals) on an arc centered on the center of the window 43.
- the duct member 42 is placed on (overlapped with) the front surface of the holder 41 having the above structure.
- the duct member 42 includes a donut-shaped flow path forming portion 70 having a circular opening for exposing the window 43 of the holder 41 and a flange portion 71 extending from the flow path forming portion 70.
- the flange portion 71 is formed with through holes that communicate with the through holes provided at the four corners of the holder 41.
- the holder 41 and the duct member 42 are fixed to the edge of the opening 40a of the main body 40 by screws (not shown) inserted into the communicating through holes.
- An annular flow path 75 (FIG. 10) is formed between the holder 41 and the duct member 42 (flow path forming portion 70) stacked as described above.
- an opening 72 that communicates with the annular flow path 75 is provided on one side of the duct member 42. Therefore, as shown in FIG. 5A, when the duct member 42 and the holder 41 are fixed to the main body 40, an inlet 73 communicating with the annular flow path 72 is formed on one side of the opening 40 a of the main body 40.
- notches are formed on three sides of the opening 40a of the main body 40, respectively. Therefore, when the duct member 42 and the holder 41 are fixed to the main body 40, outlets 74 communicating with the internal space of the main body 40 are formed on the three sides of the opening 40a of the main body 40, respectively.
- the regions 61 to 64 on the holder 41 are located in an annular flow path 75 formed between the holder 41 and the duct member 42. In each region, a plurality of ports and these ports are selected. A plate member that opens and closes is provided. Therefore, the cooling air flowing into the annular flow path 75 from the inlet 73 shown in FIG. 5A flows into the main body 41 through the opened port, and cools the arc tube 22. Thereafter, the cooling air flows out of the main body 40 (lamp box 10) through the outlet 74 shown in FIGS. 5A and 5B.
- the connection flow path 31 shown in FIG. 4 is connected to the inlet 74, and the wind sent out from the sirocco fan 12 flows into the annular flow path 75 as cooling air.
- the ports and plate members provided in the regions 61 to 64 of the holder 41 will be described in detail.
- the shape, structure, arrangement, and the like of the port and plate member in each region are common to each other. Therefore, only the ports and plate members provided in the first region 61 shown in FIG. 6 will be described.
- FIG. 7 is an enlarged view showing the first region 61 and its periphery.
- a port group including a first port 81, a second port 82, and a third port 83 communicating with the inside of the reflector 23 of the lamp unit 20 is formed.
- the cooling air flowing in from the first port 81 is guided by a rectifying plate described later and flows mainly toward the sealing portion 25a of the arc tube 22.
- the cooling air flowing in from the second port 82 and the third port 83 is guided by the current plate and flows mainly toward the bulb 24 of the arc tube 22. Therefore, in the following description, the first port 81 is referred to as “sealing port 81”, the second port 82 is referred to as “valve port 82”, and the third port 83 is referred to as “valve port 83”.
- a half-moon shaped plate member 90 capable of covering substantially half of the region 61 is provided.
- the plate member 90 is a rotary shaft 91 provided at the center of the region 61 and is rotatably held by a rotary shaft 91 parallel to the central axis of the arc tube 22.
- the sealing portion port 81 is provided between the rotating shaft 91 and the arc tube 22.
- the sealing portion port 81 is provided inside the rotation shaft 91.
- the valve ports 82 and 83 are provided outside the rotating shaft 91.
- the sealing portion port 81 is disposed on a straight line connecting the center of the rotating shaft 91 and the center of the arc tube 22.
- the valve port 82 and the valve port 83 are arranged in line symmetry with the straight line as the axis of symmetry.
- the plate member 90 is rotated by its own weight according to the posture of the projection display device 1, and a plurality of ports are selectively opened and closed.
- the selective opening / closing of the port will be described in detail later.
- four guide ribs 76 are provided on the back surface of the duct member 42 facing the front surface of the holder 41.
- the positions of the guide ribs 76 correspond to the positions of the regions 61 to 64.
- a part of the end face of the guide rib 76 is in contact with the end face of the rotating shaft 91 to prevent the plate member 90 from coming off.
- another part of the end face of the guide rib 76 is opposed to the front face of the holder 41 at a predetermined interval to guide the rotation of the plate member 90.
- the projection display device 1 is revolved 360 degrees counterclockwise from the state shown in FIG.
- the rotation angle of the projection display apparatus 1 shown in FIG. 11A is 0 degree
- the rotation angle of the projection display apparatus 1 shown in FIG. 11B is 45 degrees.
- the rotation angle of the projection display apparatus 1 shown in FIG. 11C is 90 degrees
- the rotation angle of the projection display apparatus 1 shown in FIG. 11D is 135 degrees
- the projection type is shown in FIG.
- the rotation angle of the display device 1 is 180 degrees
- the rotation angle of the projection display device 1 shown in FIG. 11F is 225 degrees
- the rotation angle of the projection display device 1 shown in (h) is 315 degrees.
- FIG. 12 is a plan view showing the open / closed state of the port when the projection display device 1 is in the state shown in FIG. 11 (a). Note that an arrow G in FIGS. 12 to 23 indicates the direction of gravity.
- the first region 61 and the second region 62 are more in the direction of gravity than the third region 63 and the fourth region 64.
- the sealing portion port 81 and the valve port 83 are closed by the plate member 90, and only the valve port 82 is opened.
- the sealing portion port 81 and the valve port 82 are closed by the plate member 90, and only the valve port 83 is opened.
- the valve ports 82 and 83 are closed by the plate member 90, and only the sealing portion port 81 is opened.
- a rectifying plate 84 is provided on the back side of each of the regions 61 to 64. More specifically, a rectifying plate 84 that is inclined downward toward the valve 22 is provided between the sealing portion port 81 and the valve ports 82 and 83. Therefore, the cooling air flowing in from the valve port 82 in the first region 61 and the valve port 83 (FIG. 12) in the second region 62 is guided to the rectifying plate 84 and supplied mainly on the upper part of the valve.
- FIG. 14 is a plan view showing the open / closed state of the port when the projection display device 1 is in the state shown in FIG. 11 (b).
- the first area 61 is at the highest position in the gravity direction among the four areas.
- the sealing portion port 81 is closed by the plate member, and the valve ports 82 and 83 are opened.
- the sealing portion port 81 and the valve port 82 are closed by the plate member 90, and only the valve port 83 is opened.
- the sealing portion port 81 and the valve port 83 are closed by the plate member 90, and only the valve port 82 is opened.
- the valve ports 82 and 83 are closed by the plate member 90, and only the sealing portion port 81 is opened. Therefore, as shown in FIG. 15, the upper part of the valve is preferentially cooled by the cooling air flowing from the valve ports 82 and 83 (only the valve port 82 is shown in FIG. 15) in the first region 61. Further, as shown in FIG. 16, the vicinity of the upper part of the valve is cooled by the cooling air flowing in from the valve port 83 in the second region 62 and the valve port 82 in the fourth region.
- FIG. 17 is a plan view showing the open / close state of the port when the projection display device 1 is in the state shown in FIG.
- the fourth region 64 and the first region 61 are more in the direction of gravity than the second region 62 and the third region 63.
- the sealing portion port 81 and the valve port 83 are closed by the plate member 90, and only the valve port 82 is opened.
- the sealing portion port 81 and the valve port 82 are closed by the plate member 90, and only the valve port 83 is opened.
- valve ports 82 and 83 are closed by the plate member 90, and only the sealing portion port 81 is opened. Therefore, the upper part of the valve is preferentially cooled by the cooling air flowing in from the valve port 82 in the fourth region 64 and the valve port 83 in the first region 61.
- FIG. 18 is a plan view showing the open / closed state of the port when the projection display apparatus 1 is in the state shown in FIG. 11 (d).
- the fourth area 64 is at the highest position in the gravity direction among the four areas.
- the sealing portion port 81 is closed by the plate member 90, and the valve ports 82 and 83 are opened.
- the sealing portion port 81 and the valve port 82 are closed by the plate member 90, and only the valve port 83 is opened.
- the sealing portion port 81 and the valve port 83 are closed by the plate member 90, and only the valve port 82 is opened.
- the valve ports 82 and 83 are closed by the plate member 90, and only the sealing portion port 81 is opened. Therefore, the upper part of the valve is preferentially cooled by the cooling air flowing from the valve ports 82 and 83 in the fourth region 64. Further, the vicinity of the upper part of the valve is cooled by the cooling air flowing from the valve port 83 in the first region 61 and the valve port 82 in the third region 63.
- FIG. 19 is a plan view showing the open / close state of the port when the projection display device 1 is in the state shown in FIG. 11 (e).
- the third region 63 and the fourth region 64 are more in the direction of gravity than the first region 61 and the second region 62. Located above with respect to.
- the sealing portion port 81 and the valve port 83 are closed by the plate member 90, and only the valve port 82 is opened.
- the fourth region 64 the sealing portion port 81 and the valve port 82 are closed by the plate member 90, and only the valve port 83 is opened.
- the valve ports 82 and 83 are closed by the plate member 90, and only the sealing portion port 81 is opened. Therefore, the upper part of the valve is preferentially cooled by the cooling air flowing in from the valve port 82 in the third region 63 and the valve port 83 in the fourth region 63.
- FIG. 20 is a plan view showing the open / closed state of the port when the projection display device is in the state shown in FIG. 11 (f).
- the third region 63 is at the highest position in the gravity direction among the four regions.
- the sealing portion port 81 is closed by the plate member 90, and the valve ports 82 and 83 are opened.
- the fourth region 64 the sealing portion port 81 and the valve port 82 are closed by the plate member 90, and only the valve port 83 is opened.
- the sealing portion port 81 and the valve port 83 are closed by the plate member 90, and only the valve port 82 is opened.
- the valve ports 82 and 83 are closed by the plate member 90, and only the sealing portion port 81 is opened. Accordingly, the upper part of the valve is preferentially cooled by the cooling air flowing from the valve ports 82 and 83 in the third region 63. Further, the vicinity of the upper portion of the valve is cooled by the cooling air flowing in from the valve port 83 in the fourth region 64 and the valve port 82 in the second region 62.
- FIG. 21 is a plan view showing the open / closed state of the port when the projection display device 1 is in the state shown in FIG. 11 (g).
- the second region 62 and the third region 63 are more in the direction of gravity than the fourth region 64 and the first region 61.
- the sealing portion port 81 and the valve port 83 are closed by the plate member 90, and only the valve port 82 is opened.
- the sealing portion port 81 and the valve port 82 are closed by the plate member 90, and only the valve port 83 is opened.
- the valve ports 82 and 83 are closed by the plate member 90, and only the sealing portion port 81 is opened. Therefore, the upper part of the valve is preferentially cooled by the cooling air flowing in from the valve port 82 in the second region 62 and the valve port 83 in the third region 63.
- FIG. 22 is a plan view showing the open / close state of the port when the projection display apparatus 1 is in the state shown in FIG. 11 (h).
- the second area 62 is at the highest position in the gravity direction among the four areas.
- the sealing portion port 81 is closed by the plate member 90, and the valve ports 82 and 83 are opened.
- the third region 63 the sealing portion port 81 and the valve port 82 are closed by the plate member 90, and the valve port 83 is opened.
- the sealing portion port 81 and the valve port 83 are closed by the plate member 90, and only the valve port 82 is opened.
- the valve ports 82 and 83 are closed by the plate member 90, and only the sealing portion port 81 is opened. Accordingly, the upper part of the valve is preferentially cooled by the cooling air flowing from the valve ports 82 and 83 in the second region 62. Further, the vicinity of the upper part of the valve is cooled by the cooling air flowing in from the valve port 83 in the third region 63 and the valve port 82 in the first region 61.
- the upper part of the valve is intensively cooled, and the temperature of the entire valve is kept uniform.
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Abstract
Description
Claims (9)
- アーク放電によって光を発する発光管と、該発光管を取り囲むリフレタとを備えたランプユニットを有する光源装置であって、
前記リフレクタの開口部を塞ぐとともに、前記ランプユニットを保持するホルダと、
前記ホルダの前面に重ねられたダクト部材と、
前記ホルダの前面と前記ダクト部材の背面との間に形成され、冷却風が供給される流路と、
前記ホルダに設けられた複数のポート群であって、各ポート群が前記リフレクタの内側と前記流路とを連通させる2以上のポートを含むポート群と、
前記ポート群ごとに設けられ、各ポート群に含まれる前記2以上のポートを選択的に開閉する板部材と、を有し、
前記複数のポート群は、前記発光管の中心軸の周囲に、該中心軸を取り囲むように配置され、
前記板部材は、前記光源装置の姿勢変化に応じて自重により回動し、前記ポート群に含まれる前記2以上のポートの一部を開き、他の一部を閉じる、光源装置。 - 前記板部材を支持する回転軸であって、前記発光管の中心軸と平行な回転軸を有し、
前記ポート群に含まれる前記2以上のポートには、前記回転軸の内側であって、該回転軸と前記中心軸との間に配置されたポートと、前記回転軸の外側に配置されたポートとが含まれる、請求項1に記載の光源装置。 - 前記回転軸の内側に位置する第1ポートと、
前記回転軸の外側に位置する第2ポートおよび第3ポートと、を有し、
前記第1ポートは、前記中心軸の中心と前記回転軸の中心とを結ぶ直線の上に配置され、
前記第2ポートおよび前記第3のポートは、前記直線を対称軸として対称に配置されている、請求項2に記載の光源装置。 - 前記ホルダの背面には、前記ポートから流入した冷却風を前記発光管に向けて案内する整流板が設けられている、請求項1乃至請求項3のいずれか一項に記載の光源装置。
- 4つの前記ポート群を有し、それらポート群は、前記発光管の中心軸の周囲に等間隔で配置されている、請求項1乃至請求項4のいずれか一項に記載の光源装置。
- 前記ホルダの前面に設けられたリング状の複数のリブを有し、
各リブの内側に、前記ポート群および前記板部材が配置されている、請求項1乃至請求項5のいずれか一項に記載の光源装置。 - 前記ダクト部材の背面には、前記板部材の回動を案内するガイドリブが設けられている、請求項1乃至請求項6のいずれか一項に記載の光源装置。
- 光源装置と、該光源装置から出射された光を変調する変調手段と、該変調手段によって変調された光を投写する投写レンズとを有する投写型表示装置であって、
前記光源装置は、請求項1乃至請求項7のいずれか一項に記載の光源装置であって、
前記光源装置が備える発光管の中心軸と、前記投写レンズの光軸とが直交している、投写型表示装置。 - 送風装置と、
前記送風装置と前記光源装置の前記流路とを繋ぐ連結流路を有する、請求項8に記載の投写型表示装置。
Priority Applications (4)
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CN201180069304.8A CN103443527B (zh) | 2011-03-15 | 2011-03-15 | 光源设备和投影显示设备 |
US14/002,091 US9285663B2 (en) | 2011-03-15 | 2011-03-15 | Projection display device having light source with plurality of port groups each having opening and closing plate |
PCT/JP2011/056018 WO2012124053A1 (ja) | 2011-03-15 | 2011-03-15 | 光源装置および投写型表示装置 |
JP2013504442A JP5660646B2 (ja) | 2011-03-15 | 2011-03-15 | 光源装置および投写型表示装置 |
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PCT/JP2011/056018 WO2012124053A1 (ja) | 2011-03-15 | 2011-03-15 | 光源装置および投写型表示装置 |
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US (1) | US9285663B2 (ja) |
JP (1) | JP5660646B2 (ja) |
CN (1) | CN103443527B (ja) |
WO (1) | WO2012124053A1 (ja) |
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JP2015096908A (ja) * | 2013-11-15 | 2015-05-21 | Necディスプレイソリューションズ株式会社 | 光源装置及びそれを備えた投写型表示装置と光源装置の冷却方法 |
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JP2016167044A (ja) * | 2015-03-06 | 2016-09-15 | セイコーエプソン株式会社 | 光源装置、およびプロジェクター |
ITMI20150554A1 (it) * | 2015-04-16 | 2016-10-16 | Clay Paky Spa | Gruppo di raffreddamento per raffreddare almeno una sorgente luminosa di un proiettore e proiettore comprendente detto gruppo di raffreddamento |
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Also Published As
Publication number | Publication date |
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US9285663B2 (en) | 2016-03-15 |
JPWO2012124053A1 (ja) | 2014-07-17 |
CN103443527B (zh) | 2015-08-12 |
JP5660646B2 (ja) | 2015-01-28 |
CN103443527A (zh) | 2013-12-11 |
US20130329195A1 (en) | 2013-12-12 |
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