WO2006057151A1 - 光源装置及び投影型画像表示装置 - Google Patents
光源装置及び投影型画像表示装置 Download PDFInfo
- Publication number
- WO2006057151A1 WO2006057151A1 PCT/JP2005/020375 JP2005020375W WO2006057151A1 WO 2006057151 A1 WO2006057151 A1 WO 2006057151A1 JP 2005020375 W JP2005020375 W JP 2005020375W WO 2006057151 A1 WO2006057151 A1 WO 2006057151A1
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- WO
- WIPO (PCT)
- Prior art keywords
- reflector
- light source
- source device
- arc tube
- heat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
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Classifications
-
- 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]
- H04N9/3102—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] using two-dimensional electronic spatial light modulators
- H04N9/3111—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] using two-dimensional electronic spatial light modulators for displaying the colours sequentially, e.g. by using sequentially activated light sources
- H04N9/3114—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] using two-dimensional electronic spatial light modulators for displaying the colours sequentially, e.g. by using sequentially activated light sources by using a sequential colour filter producing one colour at a time
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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
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
- F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
- F21V29/75—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with fins or blades having different shapes, thicknesses or spacing
-
- 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
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
- F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
- F21V29/76—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical parallel planar fins or blades, e.g. with comb-like cross-section
-
- 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
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
- F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
- F21V29/77—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical diverging planar fins or blades, e.g. with fan-like or star-like cross-section
- F21V29/773—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical diverging planar fins or blades, e.g. with fan-like or star-like cross-section the planes containing the fins or blades having the direction of the light emitting axis
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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
-
- 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
-
- 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
-
- 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
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/502—Cooling arrangements characterised by the adaptation for cooling of specific components
- F21V29/505—Cooling arrangements characterised by the adaptation for cooling of specific components of reflectors
Definitions
- Light source device and projection-type image display device are Light source devices and projection-type image display device
- the present invention relates to a light source device in which heat dissipation of a luminous tube serving as a light source is improved by providing a heat conducting member, and a projection type image display device to which such a light source device is applied.
- a projector projection-type image display device
- a projector projection-type image display device
- Such a configuration of the projection type image display apparatus is also applied to a rear projection system represented by a rear projection television.
- Projection-type image display devices are required to have high-luminance light sources, and light source devices using lamps (discharge-type arc tubes) such as metal nitride lamps and high-pressure mercury lamps are built in.
- the light source device includes a reflector having a shape that covers the light-emitting tube with a unidirectional side force in order to reflect the radiated light of the light source in a desired direction.
- This reflector functions as a concave mirror by making the inner peripheral surface a mirror surface, and reflects light emitted from the arc tube outward from the opening side of the reflector.
- Lamps such as metal lamps, ride lamps and high-pressure mercury lamps generate a large amount of heat and reach a high temperature in use. If the lamp itself reaches a high temperature, the temperature of the lamp body and the inner surface of the reflector (concave mirror) will rise excessively, leading to various problems such as shortening the life of the lamp itself and degrading the reflective layer of the concave mirror. Give rise to For this reason, in the projection type image display device, it has been essential to provide a cooling mechanism in which a cooling fan is disposed around the light source device and the entire light source device is forcibly cooled by blowing air.
- Patent Document 1 in a light source device in which a glass plate or an optical lens is provided on the opening side of a reflector, an opening is formed in a part of the reflector in order to allow air to be blown to the inner peripheral surface of the lamp and the reflector. It has been proposed that cooling air be sent into the reflector through the opening.
- a xenon lamp of a type different from the lamp of the light source device described above has a configuration in which a support member for supporting one of the opposing electrodes is connected to a reflector.
- Patent Document 3 is provided with a heat conduction contact member protruding from the hole edge of the arc tube mounting hole of the reflector in order to lower the temperature of the light emitting sphere (part of the chamber) of the arc tube.
- a light source device is disclosed.
- Patent Document 1 Japanese Patent Laid-Open No. 11-39934
- Patent Document 2 US Patent No. 6400067 Specification
- Patent Document 3 Japanese Patent Laid-Open No. 2005-71814
- a lamp as a light source has a structure in which electrodes are arranged to face each other in an internal cavity of a part of a chamber formed in a central part of a glass support that is sealed at both ends. Power with heat resistance of about 1000 ° C The sealed parts at both ends have heat resistance up to about 400 ° C.
- the lamp having such a structure has one end attached to the reflector, and the reflector is radiated from a part of the chamber in the heat generated on the glass support when the lamp is turned on. Heat generated in the range of the end on the mounting side can be mitigated to some extent because it moves to the reflector by heat conduction.
- the range of the sealing portion from the chamber partial force to the end opposite to the mounting side floats in the reflector and protrudes in a state of being raised, so that the generated heat is efficiently generated. Therefore, there is a problem that heat accumulates and the temperature rises compared to the end on the mounting side. Such a trend of temperature rise in the arc tube occurs in both the explosion-proof light source device and the non-explosion-proof light source device.
- recent projection-type image display devices have appeared in a small type that emphasizes portability compared to the stationary type. In such a small projection-type image display device, the degree of mounting inside the device housing has been increased. Therefore, it is difficult to secure good cooling performance for the light source device.
- the configuration according to Patent Document 2 simply relates to a xenon lamp that supports one electrode, and is provided with a sealing portion at both ends and a lamp that includes an electrode in a part of the chamber at the center portion (light emission).
- the structure is completely different from the light source device for attaching the tube) to the reflector.
- the configuration according to Patent Document 2 in which one electrode is supported from the surroundings cannot be applied structurally to a light source device that attaches the lamp to the reflector, and is directly compared to a configuration in which the heat of the lamp is released to the reflector. Can't be diverted! /
- the heat conductive contact body force lamp that protrudes from the edge of the arc tube mounting hole of the reflector is configured to come into contact with the part on the mounting side from the chamber to the reflector. For this reason, the heat generated in the range where the partial force of the chamber protrudes cannot be transferred directly to the reflector.
- the present invention has been made in view of such a problem, and efficiently suppresses heat generation due to lighting of the arc tube regardless of the explosion-proof specification and the explosion-proof specification. It is an object of the present invention to provide a light source device and a projection type image display device that can efficiently dissipate heat to the projecting side.
- the light source device has one end of the arc tube at the front so that the arc tube protrudes from the center of the reflector having a concave inner peripheral surface as a reflection surface to the reflection side.
- the arc tube is attached to the reflector, and the arc tube is formed between the sealing portions on both ends.
- a heat conducting member that connects the sealing portion on the side protruding from a part of the chamber of the arc tube and the reflector is provided.
- the heat generated in the arc tube by lighting can be directly conducted to the reflector through the heat conducting member. It becomes. As a result, the temperature rise of the arc tube is suppressed, and the light source device as a whole can secure good temperature characteristics even when it is turned on, and the service life of the arc tube and the reflector can be extended.
- a material used for the heat conducting member it is preferable to apply a metal such as copper or aluminum having a good thermal conductivity, ceramics having an aluminum nitride force, or the like.
- the sealing portion force on the protruding side has a heat path for releasing heat to the reflector through the heat conducting member.
- the sealing part on the protruding end side where the temperature tends to rise due to the lighting of the arc tube, can be reliably cooled, and the end part temperature on the sealing part side can be maintained at 350 ° C or lower under normal conditions. Therefore, it is possible to extend the life of the arc tube.
- the light source device is characterized in that a base material of the reflector is a metal material.
- the reflector base material is made of a metal material, so that the heat conducted by the heat conducting member is easily transferred to the reflector, and the transmitted light is radiated to the outside.
- the heat dissipating ability is improved.
- the metal material applied to the reflector substrate aluminum, copper, or the like having a thermal conductivity of lOWZm'K or higher is preferable.
- the light source device is characterized in that the heat conducting member has an extending portion that extends radially from the arc tube side to the reflector side.
- the extending portion extending radially from the arc tube side to the reflector side, the light emitted from the arc tube, reflected by the reflector and emitted outward is blocked. Since only the extension part is provided and the extension part has a radial arrangement, it is possible to minimize the extent to which the light radiated outwards is blocked, thereby hindering the function of the light source device as a light source. Disappear. [0019] Further, by extending the extending portion radially, the arc tube and the reflector can be connected at the shortest distance, and the deterioration of the thermal conductivity due to the length of the heat conducting member is suppressed, The arc tube can be cooled efficiently. It should be noted that if there are one or more extension parts, the structure is established, but considering the non-existence of structural stability and the degree of light blocking, it is optimal to provide three extension parts. Of course, it is possible to provide three or more extending portions.
- a curved portion is formed in the extending portion.
- the curved portion is formed in the extending portion. Troubles caused by the temperature rise of the heat conduction member itself can be eliminated.
- the heat conducting member when the heat conducting member is formed of a metal material, the heat conducting member is heated by being irradiated with heat conducted from the arc tube and light reflected by the reflector.
- the members constituting the heat conducting member are thermally expanded, stress is applied to the arc tube arranged at the center of the reflector, and the arc tube is misaligned. It is assumed that the glass support of the light tube is broken.
- the thermal expansion is absorbed and released by the curved portion, so that the stress is not applied to the arc tube, and the occurrence of the above-described problems can be prevented.
- the bending direction of the bent portion can be set as appropriate according to the dimensions, specifications, etc. of the light source device.For example, in the case of a bent portion bent in a direction perpendicular to the radial direction of the extending portion, the thermal expansion component is moved tangentially. I can escape.
- a region where the light beam emitted from the electrode of the arc tube is reflected by the reflector includes a region having a high light beam density and a region having a low light beam density.
- the curved portion is formed in a region where the light flux density is low.
- the curved portion in the region where the light flux density is low, it is possible to minimize the influence of the curved portion blocking the light reflected by the reflector and emitted outward. Therefore, it is possible to prevent the deterioration of the light source characteristics of the light source device.
- the area around the reflector side corresponds to the low light flux density area
- the area around the arc tube also corresponds when the arc tube length is shorter than the size of the reflector.
- the heat conducting member is an outer ring that fits the arc tube. And the extending portion extends from the outer fitting annular portion.
- the outer fitting annular portion for fitting the arc tube since the outer fitting annular portion for fitting the arc tube is provided, a large contact area between the heat conducting member and the arc tube can be secured by the outer fitting annular portion, and the heat generated in the arc tube can be reduced.
- the arc tube can be cooled by increasing the efficiency absorbed by the heat conducting member.
- the length of the externally fitted annular portion can be set to a dimension that can cover the entire range of the sealing portion, or can be set to a dimension that covers a partial range of the sealing portion.
- the shape of the outer ring-shaped portion can be changed from a pipe shape to a ring shape depending on the length.
- the outer fitting annular portion may not necessarily be continuous in the circumferential direction, but may be partially provided with a dividing portion to absorb the expansion due to the thermal expansion.
- the extension part by extending the extension part from the outer ring part, the heat transmitted to the arc tube part can be smoothly conducted to the extension part, and efficient heat transfer can be achieved. Can be achieved.
- the heat conducting member includes a fitting annular portion fitted to the peripheral surface of the reflector, and an extension end of the extension portion is connected to the fitting annular portion. It is characterized by that.
- the fitting annular part fitted to the peripheral surface of the reflector is provided, and the extending part is connected to the fitting annular part, the heat conducting member and the reflector are connected by the fitting annular part.
- a large contact area can be secured, and the heat of the heat conducting member can be smoothly conducted to the reflector.
- the fitting annular portion is not necessarily continuous in the circumferential direction as in the case of the outer fitting annular portion, and a dividing portion may be provided to absorb the thermal expansion.
- the light source device is characterized in that a bent portion is provided at an extending end of the extending portion, and the bent portion is in contact with an inner peripheral surface of the reflector. .
- the heat conducting member can be easily attached to the reflector side. In other words, simply by attaching the heat conducting member from the reflection side opening of the reflector, the bent portion can be brought into contact with the inner peripheral surface of the reflector to fix the heat conducting member. Further, since the bent portion contacts the inner peripheral surface of the reflector, the extension force can also conduct heat to the reflector through the bent portion. In addition, when fixing to the reflector at the bent portion, it is possible to use an adhesive (adhesive) with good thermal conductivity, or to fix it by screwing or brazing. Good.
- a bent portion parallel to the end surface of the reflection-side opening of the reflector is provided at an extension end of the extension portion, and the bent portion is provided on the reflector. It is in contact with the end face of the reflection side opening.
- the heat conducting member is attached to the reflector when the heat conducting member is attached to the reflector.
- a portion that reliably contacts is secured by the bent portion. Therefore, heat can be reliably conducted from the heat conducting member to the reflector through the bent portion.
- a slit is formed at a location of the reflector corresponding to the extending direction of the extending portion of the heat conducting member, and the extending portion extends into the slit. The end is fitted.
- the heat conducting member can be attached to the reflector side simply by fitting the extension end into the slit. . Further, since the extended end fitted into the slit contacts the peripheral edge of the slit, heat can be conducted from the heat conducting member to the reflector through the contact portion. Further, even if the extension portion is thermally expanded due to heat conduction and irradiation of reflected light from the reflector, the extension end is not prevented from thermally expanding in the direction of extending through the slit. It will expand to the exit end side, and it is possible to avoid applying unnecessary stress to the arc tube.
- the light source device is characterized in that a bent portion is provided at an extended end of the extended portion, and the bent portion is in contact with an outer peripheral surface of the reflector.
- the heat conducting member is formed at the extended end of the reflector through the slit.
- the surface can be externally fitted, and the attachment to the reflector is ensured, and the area of contact with the reflector can be expanded to increase the efficiency of heat conduction to the reflector.
- adhesive adheresive
- the cross-sectional shape orthogonal to the extending direction of the extending portion is such that the dimension in the first direction parallel to the longitudinal direction of the arc tube is in the first direction. It is characterized by being larger than the dimensions in the orthogonal second direction.
- the cross-section of the extension is larger in the first direction parallel to the longitudinal direction of the arc tube than in the second direction perpendicular to the first direction.
- it can be accommodated by increasing the dimension in the first direction, ensuring good heat conductivity and minimizing the amount of light reflected by the reflector. It is done.
- the shape of a cross section perpendicular to the extending direction of the extending portion is a wedge shape
- the mounting direction of the arc tube is a wedge-shaped tapered side.
- the cross-sectional shape of the extending portion is wedge-shaped with the side corresponding to the mounting direction of the arc tube tapered, the degree of blocking the reflected light of the reflector can be further suppressed. That is, each light beam forming the light (light flux) reflected by the reflector travels while spreading to some extent because the reflecting surface of the reflector has a predetermined curvature.
- the cross section of the extending portion into a tapered wedge shape on the light emitting tube mounting direction side, only the wedge-shaped tip portion blocks the light beam, and if the light beam travels along the wedge-shaped hypotenuse, The light beam that has passed through the location is not blocked by the extension, and the light intensity can be minimized.
- the light source device is characterized in that the surface of the heat conducting member is covered with an anti-oxidation film.
- the heat conducting member by coating the surface of the heat conducting member with the antioxidant film, it is possible to suppress the heat conducting member from generating heat due to the irradiation of the light reflected by the reflector.
- the heat conducting member since the heat conducting member is irradiated with the reflected light of the reflector, it is heated by the reflected light during lighting, but the surface is not fogged by covering the surface with the anti-oxidation film, and the irradiated light
- the heat conduction member is appropriately reflected on the surface to prevent the heat conduction member from being heated by the irradiation of the reflector Taka, and the heat conduction efficiency can be prevented from being lowered.
- the surface of the heat conducting member is preliminarily polished by a treatment such as polishing or plating, and such a glossy surface is oxidized. It is preferable to coat with a protective film.
- the anti-oxidation film includes silicon dioxide as a component, quartz coating It is preferable to use
- the light source device is characterized in that the reflector has a reflecting surface covered with a heat diffusion film.
- the reflecting surface of the reflector is covered with a heat diffusion film, the temperature of the reflecting surface does not increase excessively, the deterioration of the reflecting surface can be prevented, and the heat dissipation of the reflector itself can be prevented. It can be maintained well.
- the light source device is characterized in that the base material of the reflector is exposed at a location where the heat conducting member of the reflecting surface is connected.
- the location where the heat conducting member is connected on the reflecting surface of the reflector exposes the reflector base material, so that heat is transferred from the heat conducting member to the reflector.
- the diffusion film does not exist. As a result, the heat diffusion film can conduct heat efficiently without becoming a resistance to heat conduction.
- the light source device is characterized in that the reflector includes a heat radiating fin on an outer peripheral surface.
- the reflector is provided with heat radiation fins on the outer peripheral surface, the heat radiation performance of the reflector can be further improved, and the heat conduction from the heat conducting member to the reflector can be smoothly performed while suppressing the temperature rise of the reflector. .
- the light source device includes a projecting heat conducting portion projecting from the inner peripheral surface of the reflector, and the projecting heat conducting portion is sealed from a part of the chamber of the arc tube on the attachment side to the reflector.
- the stopper is connected to the reflector.
- the projecting heat conducting part is provided in the reflector so as to connect the sealing part on the attachment side to the reflector from the part of the chamber of the arc tube and the reflector, through the projecting heat conducting part, Heat generated in the range of the arc tube attached to the reflector including a part of the chamber can be efficiently transferred to the reflector.
- heat is conducted to the reflector by the projecting heat conducting part on one end side which is the side where the arc tube is attached to the reflector, and the heat conduction described above is conducted on the other end side which is the projecting side of the arc tube.
- the light source device includes an attachment-side heat conductive member that connects the reflector on the attachment side to the reflector from a part of the chamber of the arc tube and the reflector.
- the mounting side heat conduction member is provided to connect the reflector on the mounting side to the reflector from the chamber part of the arc tube to the reflector, the reflector including the chamber part of the arc tube is provided. Heat generated in the range of the mounting side can be transferred to the reflector by the mounting side heat conduction member.
- the attachment-side heat conducting member is a separate member from the reflector, it is not difficult to manufacture the reflector.
- the attachment-side heat conducting member extends outward from the reflector through a portion where the arc tube is attached to the reflector, and a fin is provided at the extended portion. It is characterized by providing.
- the fin is provided at the portion of the attachment-side heat conduction member that extends outward from the reflector, a part of the heat that has moved from the arc tube to the attachment-side heat conduction member moves to the reflector. It is possible to radiate heat directly through the fins at the location where the mounting side heat conduction member extends outward. As a result, the heat radiation burden on the reflector can be reduced, and the heat can be efficiently radiated by the mounting side heat conducting member, and the cooling performance for the arc tube can be improved.
- a light source device is characterized by comprising a translucent member attached so as to close a reflection side opening of the reflector.
- the light source device can be made explosion-proof, and the arc tube and the harmful substance are prevented from leaking, and the arc tube is formed by the heat conducting member. Temperature can be prevented, and stable use can be ensured even if the lamp is lit for a long time.
- the explosion-proof light source device of the present invention cools the arc tube with a heat conducting member, so that a stable lighting can be maintained even if the input power to the arc tube is higher than the conventional explosion-proof light source device. Specifically, 180W power exceeding 150W and power up to approximately 200W (up to 200W or more depending on the specifications) can be input, providing even higher brightness.
- a projection-type image display device is emitted from the light source device and the light source device. And a projection lens that projects the modulated light generated by the spatial light modulation element onto the projection object.
- the projection-type image display device includes a light source device that has improved cooling efficiency as compared with the conventional case, it is possible to solve the problems caused by heat generation, simplify the forced cooling mechanism of the light source device, and This makes it possible to omit the forced cooling mechanism itself, and as a result, it is easy to achieve a reduction in size and weight of the apparatus, which can contribute to reduction in apparatus cost.
- the invention's effect is possible to solve the problems caused by heat generation, simplify the forced cooling mechanism of the light source device, and This makes it possible to omit the forced cooling mechanism itself, and as a result, it is easy to achieve a reduction in size and weight of the apparatus, which can contribute to reduction in apparatus cost.
- the present invention by connecting the arc tube and the reflector with the heat conducting member, heat generated in the arc tube can be conducted to the reflector through the heat conducting member, and the temperature rise of the arc tube is suppressed and stabilized.
- the lamp can be turned on and the life of the arc tube can be extended, and the sealing part on the protruding end side of the arc tube and the reflector are connected by a heat conducting member, so the temperature of the arc tube is likely to rise.
- the stop can be maintained below 350 ° C under normal conditions.
- the base material of the reflector is made of a metal material, so that the heat conducted by the heat conducting member can be smoothly conducted to the reflector, and the heat radiation capacity of the entire light source device can be improved. Can be improved.
- the heat conducting member is provided with an extending portion that extends radially from the arc tube side to the reflector side, the degree of blocking the reflected light of the reflector can be minimized, and the cooling performance In addition, the predetermined light source characteristics of the light source device can be maintained.
- the curved portion is formed in the extending portion, it is possible to eliminate a problem caused by the thermal expansion by letting the curved portion escape the thermal expansion.
- the curved portion in the region where the light flux density is low, the influence of the reflected light of the reflector being blocked by the curved portion can be minimized, and the light source characteristics of the light source device are deteriorated. Can be prevented.
- the heat conducting member has an outer ring-like portion for fitting the arc tube, the heat generated in the arc tube is secured by ensuring a large contact area with the arc tube. The efficiency of conduction to the can be improved.
- the heat conducting member has a fitting annular portion that is fitted to the peripheral surface of the reflector, a large contact area with the reflector is ensured, and the heat of the heat conducting member is smoothly provided. Can be conducted to the reflector.
- the heat conducting member can be easily attached to the reflector, and the reflector can be used at the bent portion. It is possible to secure a heat transfer point to and efficiently conduct heat.
- the bent portion that contacts the end face of the reflection-side opening of the reflector is provided at the extending end of the extending portion, a heat transfer location to the reflector can be ensured through the bent portion, and When the heat conducting member is joined and fixed to the reflector, the work for joining can be easily performed at the bent portion of the end face portion of the reflector.
- the heat conducting member can be easily attached to the reflector side simply by fitting the extended end into the slit, and the extended end fitted into the slit comes into contact with the peripheral edge of the slit. Can smoothly conduct heat to the reflector.
- the bent portion that contacts the outer peripheral surface of the reflector is provided at the extended end of the extended portion, the bent portion externally fits the outer peripheral surface of the reflector to strongly force the heat conducting member to the reflector.
- heat conduction efficiency can be improved because heat can be transmitted to the reflector through the bent part.
- the cross-section of the extending portion has a dimension in the first direction parallel to the longitudinal direction of the arc tube, compared to a dimension in the second direction orthogonal to the first direction. Therefore, it is possible to minimize the extent to which the reflected light from the reflector is blocked while ensuring good thermal conductivity.
- the shape of the cross section of the extending portion is a wedge shape in which the side corresponding to the mounting direction of the arc tube is tapered, the degree of blocking the reflected light of the reflector can be further suppressed.
- the present invention by coating the surface of the heat conducting member with the antioxidant film, it is possible to suppress the heat conducting member from being heated by the reflected light of the reflector, and even while the light source device is turned on. Good thermal conductivity of the heat conducting member can be maintained.
- the reflecting surface of the reflector is covered with the heat diffusion film, the reflecting surface can be prevented from being deteriorated and the heat conduction from the heat conducting member to the reflector can be efficiently performed.
- the heat conduction member can directly conduct heat to the reflector, and a heat diffusion film is provided. However, it can conduct heat well.
- the reflector since the reflector includes the heat radiation fins on the outer peripheral surface, the heat radiation property of the reflector itself can be improved, and the heat conduction from the heat conducting member to the reflector can be performed well.
- the projecting heat conducting portion is provided in the reflector, heat generated in the range on the attachment side to the reflector including the chamber portion of the arc tube through the projecting heat conducting portion is also smooth. Therefore, the temperature of the arc tube can be prevented from rising.
- the mounting side heat conducting member since the mounting side heat conducting member is provided, the heat generated in the range on the mounting side to the reflector including a part of the chamber of the arc tube is transferred to the reflector by the mounting side heat conducting member. The temperature rise of the arc tube can be prevented from moving.
- the attachment-side heat conduction member is provided with the fin, the heat transferred from the arc tube to the attachment-side heat conduction member can be directly radiated through the fin, and the heat dissipation can be further improved.
- the translucent member that closes the reflection-side opening of the reflector since the translucent member that closes the reflection-side opening of the reflector is provided, the translucent member can prevent plosive sound and leakage of harmful substances, and the heat conducting member can The temperature rise can be prevented, and the conventional light source device can achieve powerful and compatible matters.
- the projection type image display device includes a light source device with improved cooling efficiency compared to the conventional case, it is possible to eliminate problems caused by heat generation and simplify the forced cooling mechanism of the light source device.
- the forced cooling mechanism itself can be omitted, and a reduction in size and weight can be promoted.
- FIG. 1 is a block diagram showing an internal configuration of a projection type image display apparatus according to a first embodiment of the present invention.
- FIG. 2 is a perspective view showing an exploded state of the light source device of the first embodiment.
- FIG. 3 is a cross-sectional view showing the light source device of the first embodiment.
- FIG. 4 (a) is a schematic diagram of an arc tube, and (b) is an enlarged schematic diagram of an enlarged tungsten electrode of the arc tube.
- FIG. 5 is a front view of a heat conducting member.
- FIG. 6 is a front view of a heat conducting member according to a modification.
- FIG. 7 (a) to (c) are front views of a heat conducting member of another modified example.
- FIG. 8 (a) and (b) are cross-sectional views showing a modified light source device.
- FIG. 9 is a cross-sectional view showing a light source device according to another modification.
- FIG. 10 (a) and (b) are sectional views showing a reflector of a modification.
- FIG. 11 (a) is a cross-sectional view showing a reflector according to another modification, and (b) is an enlarged cross-sectional view of a main part of the reflector with a heat conducting member attached thereto.
- FIG. 12 is a perspective view showing an exploded state of a light source device of a modified example.
- FIG. 13 is a front view of a light source device according to a modification.
- FIG. 14 (a) is a perspective view of a heat conducting member of a modified example
- FIG. 14 (b) is an enlarged view of a main part showing a state in which the heat conducting member of the modified example is attached to the reflector.
- FIG. 15 (a) is an enlarged view of the main part showing a state in which the heat conducting member of another modified example is attached to the reflector, and (b) is a location where the heat conducting member according to still another modified example is attached to the reflector.
- FIG. 16 is a perspective view showing an exploded state of a light source device of another modified example.
- FIG. 17 is an enlarged cross-sectional view of a main part showing a state in which a heat conducting member of a modified example is attached to a reflector.
- FIG. 18 (a) is a schematic diagram showing the cross section of the extension, (b) is a schematic diagram showing the cross section of the modification, and (c) is a comparison of the cross section of (a) and the cross section of (b) FIG.
- FIG. 19 is a perspective view showing an exploded state of the light source device according to the second embodiment of the present invention.
- FIG. 20 is a cross-sectional view showing a light source device according to a second embodiment.
- FIG. 21A is a cross-sectional view showing a light source device according to a modification of the second embodiment
- FIG. 21B is a cross-sectional view showing a light source device according to another modification.
- FIG. 1 is a block diagram showing an internal configuration of a projection type image display apparatus (projector) 1 according to the first embodiment of the present invention.
- the light source device 10 having improved cooling performance and heat dissipation performance compared to the conventional case is provided in the housing la, and the forced cooling mechanism using a cooling fan is omitted. It is a feature.
- the projection type image display device 1 has a color wheel 2 as an optical system portion facing the light source device 10 and downstream of the color wheel 2 in the traveling direction of the light beam emitted from the light source device 10.
- a rod lens 3, a condenser lens 4, a TIR prism 5, a reflection mirror 6, a DMD (Digital Micromirror Device: registered trademark, the same applies hereinafter) 7, and a projection lens 8 are provided in this order.
- each of the optical systems described above is provided at other locations inside the housing la.
- a circuit board 9 for controlling the part is arranged.
- Light rays emitted from the light source device 10 include ultraviolet rays, visible rays, and infrared rays, and are white rays for visual recognition.
- the color wheel 2 arranged near the focal point of the emitted light is divided into three segments that transmit at least red, green, and blue light.
- the rod lens 3 on the downstream side of the color wheel 2 is mainly formed of a glass base material in a columnar shape.
- total reflection is repeatedly propagated efficiently at the interface (side surface) on the inner surface side of the glass substrate, and the illuminance of the light beam emitted from the other end surface (emergence surface) is made uniform.
- the light flux whose illuminance is made uniform by the rod lens 3 passes through the condenser lens 4 and the TIR prism 5, is then sequentially reflected by the reflection mirror 6 and the TIR prism 5, and enters the DMD 7.
- DMD7 corresponds to a spatial light modulator, and is formed by an element that generates an image by controlling a mirror array that can move in the micron order.
- the modulated light is projected from the projection lens 8 onto a screen (projected object) (not shown).
- the projection-type image display device 1 can use a liquid crystal panel as a spatial light modulation element instead of the DMD 7.
- control circuit unit provided on the circuit board 9 controls the phase rotation of the color wheel 2 by the synchronization signal of the DMD 7, and for example, the red color is input to the DMD 7.
- the rotation of the color wheel 2 is controlled so that the light emitted from the light source device 10 passes through the red segment of the color wheel 2 during the time zone in which image data is input.
- the light beam from the light source device 10 passes through the color wheel 2 and becomes red (R), green (G), and blue (B) light in sequence. Since the image for B is formed, the R, G, and B light rays enter and exit the DMD 7 to sequentially generate the R, G, and B light rays. By projecting these light rays (modulated light) of the G and B images from the projection lens 8 onto a screen (not shown), the R, G, and B images are displayed on the screen. The R, G, and B images displayed on the screen are each switched at a speed higher than the human color resolution of 180 Hz or higher, so that they are visually recognized as color images.
- the light source device 10 of the present embodiment is explosion-proof specification and has a disk-shaped explosion-proof glass 29 (corresponding to a translucent member) that closes the opening id of the reflector 11 in which the arc tube 12 is arranged. It is also possible to apply an optical lens in place of the explosion-proof glass 29.
- the optical device 10 also has an impeller-like heat conducting member 20 that connects the arc tube 12 and the reflector 11, and conducts heat generated in the arc tube 12 by lighting to the reflector 11 by the heat conducting member 20. .
- the configuration of each part of the light source device 10 will be described in detail.
- the reflector 11 has a flange portion l ib on the periphery on the opening l id side, which is the reflection side of the concave mirror portion 11a having an inner peripheral surface l lf formed into an elliptical surface or a hyperboloid surface.
- a cylindrical portion 11c for attaching the arc tube 12 is provided at the opposite end, and the top force protrudes.
- the concave mirror part l la, the flange part l lb, and the cylindrical part 11c correspond to the base material of the reflector 11, and a metal material having a thermal conductivity of lOWZm ⁇ ⁇ or more is applied to the base material. Using aluminum with a conductivity of about 200 WZm'K!
- the concave inner peripheral surface llf of the concave mirror portion 11a is a reflective surface, and a metal such as aluminum or silver is deposited on the inner peripheral surface llf in order to obtain high reflectivity.
- the inner peripheral surface l lf is formed by a dielectric multilayer film in which a low refractive material such as S102 and a high refractive material such as Ti02 are alternately deposited, or the inner peripheral surface l lf itself. It is also possible to polish the surface.
- the concave mirror portion 11a has a hole l lh for mounting the arc tube 12 so that the center top l li of the inner peripheral surface l lf communicates with the inside of the cylindrical portion 11c.
- a fitting surface l lg for fitting the heat conducting member 20 is recessed in the periphery of the inner peripheral surface l lf on the flange portion l ib side, which is sufficient for the heat conducting member 20 to be fitted.
- the contact area is secured.
- the flange l ib has a recess l ie for mounting the explosion-proof glass 29 inside, and the concave mirror 11a has a hole l lj for drawing out a lead wire d2 of the arc tube 12 described later. Provided (see Figure 3).
- the arc tube 12 attached to the hole l lh of the reflector 11 is an ultra-high pressure mercury lamp, and is made of quartz glass with sealing portions 13d and 13e provided at both ends as shown in FIG. 4 (a).
- the glass support 13 is mainly composed of a pair of tungsten electrodes 14 and 15.
- the tungsten electrodes 14 and 15 are spherically expanded at the central portion between the sealing portions 13d and 13e on both sides of the glass support 13.
- the chamber part 13c is disposed so as to face the cavity K, and a predetermined amount of mercury and a rare gas are sealed in the cavity part of the chamber part 13.
- the tungsten electrodes 14 and 15 in the chamber part 13 are connected so as to be electrically connected to the molybdenum foils 16 and 17 sealed by the end portions 13a and 13b of the glass support 13, respectively.
- Lead wires dl and d2 extend from the molybdenum foils 16 and 17.
- Each lead wire dl, d2 is connected to a lighting electric circuit (not shown) so that power can be supplied to the tungsten electrodes 14, 15.
- FIG. 4 (b) shows opposing end portions of the tungsten electrodes 14 and 15.
- Each of the tandastain electrodes 14 and 15 is formed with slopes 14a and 15b so that the tips 14a and 15a are apexes, and an angle ⁇ is generated between the slopes 14a and 15b.
- the range of angle ⁇ is high because the light (flux) generated by the discharge of each tungsten electrode 14, 15 can travel directly without interfering with the inclined surfaces 14a, 15b.
- the luminance is relatively low in a region outside the range of the angle ⁇ .
- the range force of the angle ⁇ of each tungsten electrode 14, 15 is the portion where the emitted light beam is reflected by the inner peripheral surface 1 If of the reflector 11 (The hatched area surrounded by the two-dot chain line in the figure) is a region R where the light flux density is high, and portions other than the region R are regions where the light flux density is lower than the region R.
- the inner peripheral surface 1 If is reflected so that the incident angle and the reflection angle are equal to the tangent at the point where the light forming the light beam and the inner peripheral surface 1 If intersect.
- the arc tube 12 is attached to the reflector 11 by inserting one end 13a of the glass support 13 forming the arc tube 12 into the hole l lh of the reflector 11, and The core is aligned with the central axis C passing through the center top 1 li of the reflector 11, and the light emitting point near the center of the chamber part 13c is arranged so as to coincide with the focal point of the reflector 11.
- the fixing agent 18 fix them together.
- the arc tube 12 is supported in a state of protruding inside the reflector 11.
- the heat conducting member 20 (see Fig. 2) connecting the arc tube 12 and the reflector 11 is made of copper, and extends radially from a cylindrical outer fitting annular portion 21 provided in the center. Extending portions 23 to 25, and connecting the extending ends of the extending portions 23 to 25 to the ring-shaped fitting annular portion 22, The surface of each part 21 to 25 is polished to ensure gloss, and then covered with an anti-oxidation film.
- a product called NL110 manufactured by Clariant is used for the anti-oxidation film, but a product made of quartz coating or a material containing silicon dioxide as a component can be applied to the antioxidant film. .
- the outer ring-shaped portion 21 at the center is a sealing portion 13d (end portion from the chamber portion 13c to the end portion 13b) where the arc tube 12 protrudes from the inner space portion 21a.
- Part 13b The size is such that it can be externally fitted in Fig. 4 (a), and the length is slightly shorter than the sealing part 13d.
- the extending portions 23 to 25 are extended from the circumferential surface on one end side in the longitudinal direction of the outer fitting annular portion 21.
- curved portions 23a to 25a are formed at locations on the outer fitting annular portion 22 side, respectively.
- the bending start points 23b to 25b of the curved portions 23a to 25a coincide with the points where the region R and the extending portions 23 to 25 intersect when the heat conducting member 20 is attached as shown in FIG.
- the distance T shown in FIGS. 3 and 5 indicates the range where the extended portion 23 intersects the region R, and the point 23c on the center outer ring portion 21 side indicates the end on the center side of the distance T. Yes.
- the other extending portions 24 and 25 intersect the region R within the range of the distance T.
- the outer fitting annular portion 22 connected to each of the extending portions 23 to 25 has an outer diameter and a width dimension that can be fitted to the fitting surface llg of the reflector 11.
- the width dimension of the fitting annular portion 22 is about one fifth of the length of the central outer fitting annular portion 21, and this width dimension is the same for each of the extending portions 23 to 25. is there.
- the thickness of the outer fitting annular portion 21, the fitting annular portion 22, and the extending portions 23 to 25 forming the heat conducting member 20 is set to a dimension of about 0.5 mm to about 1. Omm.
- the heat conducting member 20 is attached by fitting the outer ring portion 21 at the center to the sealing portion 13d of the arc tube 12 and the outer ring portion 22 to the fitting surface 1lg of the reflector 11. As shown in FIG. 3, it is attached with the end face 13b of the arc tube 12 being aligned with the end face of the annular ring 21. Although not shown in FIG. 3, a fixing agent 18 used to fix the arc tube 12 and the reflector 11 is interposed between the outer annular portion 21 and the sealing portion 13d of the arc tube 12. ing. By attaching the heat conducting member 20 in this way, the glass support 13 and the reflector 11 are connected by the heat conducting member 20.
- the lead wire d2 on the protruding side of the arc tube 12 is drawn out of the reflector 11 from the hole l lj, and then the flange l ib of the reflector 11 is pulled out.
- An explosion-proof glass 29 is bonded to the recess l ie to complete the explosion-proof light source device 10.
- Necessary connections are made to the lead wires dl and d2 of the completed light source device 10, and when power is turned on, the light emitting tube 12 emits light and the light source device 10 is turned on.
- the tungsten electrodes 14 and 15 of the arc tube 12 are discharged to generate light and heat, and the generated light is reflected by the reflector 11 and passes through the explosion-proof glass 29 as shown in FIG. Is released.
- the region R having a high light flux density blocks only the extending portions 23 to 25 extending radially from the arc tube 12 side to the reflector 11 side, the light source device 10 can be attached even if the heat conducting member 20 is attached. There is almost no deterioration in the irradiation characteristics.
- the temperature of the glass support 13 rises due to the heat generated in the arc tube 12.
- heat dissipation in the light source device 10 of the present embodiment convective heat transfer, radiation, and heat conduction.
- heat transfer has the highest efficiency of heat transfer. Is radiation.
- heat transfer in each embodiment will be described.
- the first heat path is from the one end 13a on the attachment side of the arc tube 12 to the reflector 11 through the fixing agent 18 and the reflector 11 Heat is conducted to the heat. It should be noted that the convective heat transfer, heat dissipation and the first heat path mentioned above Concerning heat conduction, this also occurs in conventional explosion-proof light source devices.
- the second heat path of heat conduction is a feature of the light source device 10 of the present invention, and the heat conduction member 20 from the sealing portion 13d on the side protruding from the chamber portion 13c of the arc tube 12 is provided. Heat is conducted to the reflector 11 through this.
- the arc tube 12 has the highest temperature in the chamber part 13c, and the heat of the chamber part 13c is transferred to the sealing part 13d on the protruding side, so that the temperature of the sealing part 13d rises. Then, the heat of the sealing portion 13d is transferred to the reflector 11 through a heat path called the heat conducting member 20, and the temperature rise of the sealing portion 13d is suppressed, and the long life of the arc tube 12 is achieved.
- the externally fitted annular portion 21 on the center side of the heat conducting member 20 also externally fits the sealing portion 13d with the force at the nearest part of the chamber portion 13c.
- the outer ring portion 21 ensures a sufficient contact area and efficiently transfers the heat transferred from the chamber portion 13c to the sealing portion 13d to the outer ring portion 21 (heat conducting member 20). It is done.
- the heat that has moved to the outer ring-shaped portion 21 moves in the three-direction extending portions 23 to 25 in the direction of the extension destination and travels toward the outer fitting annular portion 22.
- the heat transferred to the outer fitting annular portion 22 through the extending portions 23 to 25 then contacts the fitting annular portion 22 and moves to the reflector 11 through the fitting surface 1lg.
- the heat transfer from the sealing portion 13d of the arc tube 12 to the reflector 11 through such a heat conducting member 20 causes the temperature of the sealing portion 13d to be higher than that of the heat conducting member 20 and the reflector 11. Until the temperature of the sealing portion 13d becomes lower than that of the heat conducting member 20 and the reflector 11. Further, as the dimension in the longitudinal direction of the outer fitting annular portion 21 fitted to the sealing portion 13d of the arc tube 12 is set so as to be closer to the chamber portion 13c, the heat radiation performance to the chamber portion 13c is improved. On the other hand, if it is set so as to be away from the chamber part 13c, the heat radiation performance can be enhanced for the sealing part 13d.
- the light source device 10 has a path by the heat conducting member 20 in addition to the conventional path for releasing heat, so that the light tube 12 can be connected even during lighting. While maintaining at the above temperature, high luminance characteristics are ensured by applying power of 200W or more.
- the heat conduction member 20 (particularly the extending portions 23 to 25) is irradiated with the light beam reflected by the reflector 11.
- the surface of the heat conduction member 20 is glossy by polishing. Since it is ensured, the irradiated light flux is reflected on the surface, and the rate at which the heat conducting member 20 (extending portions 23 to 25) absorbs heat is reduced. In addition, since the surface of the heat conducting member 20 is coated with an anti-oxidation film, the surface is prevented from being clouded during lighting and the glossiness is not lowered.
- the heat conducting member 20 Due to the reflection on the surface of the heat conducting member 20 described above, the heat conducting member 20 is a force that suppresses the temperature rise due to the irradiation of the light beam. Long time irradiation and heat conduction from the arc tube 12 to the reflector 11 As a result, the temperature of the copper heat conducting member 20 itself rises and thermal expansion occurs.
- the thermal expansion in the extended portions 23 to 25 of the heat conducting member 20 is in the radial direction (radial direction), but the extended portions 23 to 25 have curved portions 23a to 23a. Since 25a is provided, the expansion in the radial direction is converted into a direction along the curved portions 23a to 25a (in the direction of the black arrow in the figure), and finally, the expansion is exchanged with the outer fitting annular portion 22 It becomes an extension in the tangential direction at the connection point. As a result, it is possible to prevent unnecessary stress due to thermal expansion of the heat conducting member 20 from being applied to the arc tube 12 that is externally fitted at the center externally fitted annular portion 21, and the arc tube 12 is misaligned. The light emission characteristics of the light source device 10 are not changed, and the glass support 13 constituting the arc tube 12 is not broken by the thermal expansion of the heat conducting member 20.
- the projection-type image display device 1 and the light source device 10 are not limited to the above-described embodiments, and various modifications can be applied.
- a cooling fan that forcibly cools the light source device 10 may be applied to the projection-type image display device 1.
- the heat dissipation of the reflector 11 can be improved and turned on. Stable lighting can be secured even if the power value is further increased to increase the brightness.
- the light source device 10 can be made not to correspond to the explosion-proof specification by omitting the explosion-proof glass 29. In this case, since air can be blown into the reflector 11, it is combined with heat conduction by the heat conducting member 20. The cooling characteristics can be further enhanced by the combination.
- the heat conductive member 20 of the light source device 10 other metal materials such as aluminum having good thermal conductivity can be applied as materials other than copper. Ceramics with aluminum power may be applied.
- the number of the extending portions 23 to 25 of the heat conducting member 20 is not limited to three, and the number is not limited as long as it is one or more. In this case, the smaller the number, the smaller the degree of blocking the light beam reflected by the reflector 11, and the larger the number, the higher the thermal conductivity of the heat conducting member 20.
- the fitting annular portion 22 outside the heat conducting member 20 is fitted to the inner peripheral surface side of the reflector 11, and is fitted to the outer peripheral surface side when the light source device 10 is not explosion-proof. Configuration is also possible.
- the reflector 11 omits the flange portion l ib on the opening side, and the fitting annular portion 22 sets the inner diameter to a dimension that can be fitted to the outer peripheral surface side of the opening peripheral edge of the reflector 11, and the fitting annular portion 22 by making the width of 22 longer than the width of each extending portion 23 to 25 and providing a fitting allowance so that each extending portion 23 to 25 is in contact with the opening side end surface of the reflector 11. It is also possible to fit 22 to the outer peripheral surface side of the reflector 11.
- the heat conducting member 20 may have a configuration in which the outer fitting annular portion 22 itself is omitted. By doing so, the configuration of the heat conducting member 20 can be further simplified and the cost can be reduced.
- the fitting annular portion 22 is omitted, the force that fits the extending ends of the extending portions 23 to 25 so as to directly contact the inside of the reflector 11. It is also possible to provide notches such as slits for fitting ⁇ 25 to improve the contact between the extending portions 23 to 25 and the reflector 11.
- FIG. 6 shows a heat conducting member 30 of a modified example.
- the heat conducting member 30 of this modified example is characterized in that curved portions 33d to 35d are also provided on the side of the center portion of the extended portions 33 to 35 on the outer fitting annular portion 31 side.
- the bending start point 33c of the central curved portion 33d intersects the region R where the light flux density is high. Because the point is on one side of the distance T, the density of the light beam reflected by the reflector 11 is high! This is the same for the other music parts 34d and 35d.
- FIGS. 7A to 7C show heat conductive members 40 to 60 of another modification example.
- the heat conducting member 40 in FIG. 7 (a) is obtained by connecting a central outer annular portion 41 and an outer outer annular portion 42 by linear extending portions 43 to 45. 43-45 has no music section. This is suitable when a ceramic material that hardly causes thermal expansion is applied to the material of the heat conducting member 40.
- the heat conducting member 50 in Fig. 7 (b) is formed by connecting arcuate fitting portions 52a to 52c divided into respective extending portions 53 to 55 extending from the central outer fitting annular portion 51. 7 (c), the heat conducting member 60 in FIG. 7 (c) extends each of the extending portions 63 to 65 from each of the arcuate outer fitting portions 61a to 61c divided on the center side, and the fitting annular portion 62 is provided at the extending end. Concatenated. Since each of the heat conducting members 50 and 60 is provided with the arc-shaped fitting portions 52a to 52c or the arc-shaped outer fitting portions 61a to 61c divided on the outer side or the center side, the heat at the fitting point on the outer side or the center side is provided. The effect of expansion can be reduced. It should be noted that the configuration of the heat conductive members 50 and 60 of the modified example can also be applied to the heat conductive members 20 and 30 shown in FIGS.
- FIG. 8 (a) shows a light source device 10 'according to a modified example, and this light source device l (is obtained by providing a heat conducting member 70 according to a modified example on the reflector 11 to which the arc tube 12 described above is attached.
- the heat conduction member 70 according to the modified example is configured such that the extending portion from the outer fitting annular portion 71 at the center of the extending portions 73 and 74 (the third extending portion is not shown) is the chamber of the arc tube 12.
- Each of the extending portions 73 and 74 is provided at a position so that the extending end does not interfere with the region R having a high light flux density.
- the combined annular portion 72 is also shaped according to the inner peripheral curved surface of the reflector 11.
- the heat conducting member 70 of this modified example has a length L2 in the radial direction of each of the extending portions 73 to 74, Since the length dimension LI from the projecting end 71b of the central outer ring 71 to the reflector 11 can be shortened, the heat conduction path length can be shortened and the heat conduction efficiency can be improved.
- the configuration of the heat conducting member 70 of this modification is also suitable for a type in which the length of the arc tube 12 in the axial direction protrudes beyond the reflector 11 in a light source device that is not explosion-proof.
- FIG. 8 (b) shows a light source device 10 of another modified example, and this light source device 10 is provided with a heat conducting member 80 of the modified example on the reflector 11 to which the arc tube 12 is attached.
- the heat conduction member 80 of the modified example has a width dimension W of an extension part 83 84 (a third extension part is not shown) extending from the center outer fitting annular part 81 and an outer fitting annular part 82. Intersect with area R!
- the feature is that it is longer than the heat conducting member 20 shown in FIG. By doing so, the cross-sectional area perpendicular to the extending direction of the extending portion 83 84 can be made larger than each extending portion 23 24 of the heat conducting member 20 shown in FIG. 3, and the heat conduction efficiency can be further improved. .
- FIG. 9 shows a light source device 100 of a modified example that is not explosion-proof specification, and this light source device 100 is provided with a heat conducting member 90 of a modified example on a reflector 11 ′ to which an arc tube 12 is attached.
- the heat conduction member 90 of the modified example is provided with an outer fitting annular portion 91 having a length covering the sealing portion 13d in the vicinity of the protruding end portion 13b that does not cover the entire sealing portion 13 of the arc tube 12.
- An extension portion 93 94 (a third extension portion is not shown) is extended from the outer fitting annular portion 91, and an outer fitting annular portion 92 is provided at the extension end.
- the heat conducting member 90 of this modified example has the same width as the outer fitting annular portion 91, each extending portion 93 94, and the fitting annular portion 92, so that it is easy to manufacture and the arc tube 12 with the least heat resistance is also used. Heat can be intensively transferred from the end portion 13b of the sealing portion 13.
- the heat conductive member 90 of the modified example is formed of an electrically conductive material
- the lead wire is not extended from the molybdenum foil 17 on the protruding side of the arc tube 12
- An L-shaped contact portion 96 that is in conductive contact with the molybdenum foil 17 is provided in the extension portion 94, and is fitted to the lead wire d3 through the hole portion 11 of the reflector 11 ′ provided at the fitting position of the outer fitting annular portion 92.
- the annular portion 92 may be joined.
- FIG. 10 (a) shows a reflector 111 of a modification applied to the light source device of the present invention.
- the reflector 111 according to the modified example is characterized in that the thermal diffusivity of the reflector 111 is improved by covering the inner peripheral surface ll lf of the concave mirror 111a with the thermal diffusion film 115.
- the heat diffusion film 115 has a three-layer structure, and includes an infrared heat conversion layer 112, a gloss buffer layer 113, and a visible light reflection layer 114 from the inner peripheral surface 11 If side.
- the infrared heat conversion layer 112 is formed by anodizing the inner peripheral surface 11 If, and absorbs light in the wavelength region that passes through the visible light reflection layer 114 and the gloss buffer layer 113 and is efficient. The heat is converted into heat.
- the gloss buffer layer 113 is formed on the infrared heat conversion layer 112 by baking S-resin or polyimide resin at a high temperature, and the infrared conversion layer 112 and the visible light reflection layer 114 are not in direct contact with each other. Thus, both are buffered.
- the visible light reflecting layer 114 is formed on the gloss buffer layer 113 and reflects visible light.
- the reflector 111 of the modified example includes the heat diffusion film 115 having the above-described laminated structure, so that even if the light beam emitted from the arc tube 12 is reflected, the heat can be efficiently diffused and the reflecting surface is deteriorated. Protect yourself.
- Fig. 10 (b) shows a reflector 121 of another modification applied to the light source device of the present invention.
- the reflector 121 of this modification is characterized in that a large number of heat radiation fins 130a to 130i are projected from the outer peripheral surface 121k of the concave mirror 121a.
- the infrared heat conversion layer 122, the gloss buffer layer 123, and the visible light reflection layer 124 are provided on the inner peripheral surface 121f of the concave mirror 121a, each layer can be omitted.
- the reflector 121 can greatly expand the contact area with the air existing around it and improve the heat dissipating characteristics.
- the heat dissipating fins 130a to 13li may be provided integrally with the concave mirror 12la or provided separately, and may be displaced.
- the projecting direction is parallel to the projecting direction of the cylinder 121c. It may project radially from the surface 121k.
- FIG. 11 (a) shows a reflector 131 of still another modified example.
- the heat conduction member 20 that does not cover the entire inner peripheral surface 11 If with the thermal diffusion film 115 is attached to the infrared heat conversion layer 132, Without providing the heat diffusing film 135 composed of the gloss buffer layer 133 and the visible light reflecting layer 134, the base of the concave mirror portion 13 la of the reflector 131 is exposed, and the fitting surface of the heat conducting member 20 13 lg It is the feature that formed. [0110] Therefore, when the heat conducting member 20 is attached to the reflector 131 as shown in FIG.
- the fitting annular portion 22 provided at the end of the extending portion 24 is directly connected to the fitting surface 131g. Even when the heat diffusion film 135 is in contact with the heat transfer member, heat can be smoothly transferred from the heat conducting member 20 to the reflector 131.
- the reflector 131 shown in FIGS. 11 (a) and 11 (b) can correspond to the various heat conducting members 20 to 90 described above, and the reflector 121 provided with the radiation fins 130a to 130i shown in FIG. 10 (b). In contrast, a configuration in which the base material related to the reflector 131 is exposed can be applied.
- Fig. 12 shows a light source device 210 of non-explosion-proof specification according to another modified example, and in this light source device 210, a total of three locations on the edge 21 lb of the opening 21 Id of the reflector 211 (concave mirror portion 21 la).
- the slits 211h to 211j are formed, and the heat conducting member 220 is characterized in that the force of the heat conducting member 40 shown in FIG.
- the outer fitting annular portion 221 is fitted on the sealing portion 13d of the arc tube 12 (glass support 13) previously attached to the reflector 211, and each extension is extended.
- Sections 223 to 2 25 Extend ends 223a to 225a !; Slit 2111 of the reflector 211 (four-sided mirror 21 la)! Mate to 21 lj respectively (see Fig. 13).
- the heat conducting member 220 can be easily attached.
- each of the extending portions 223 to 225 expands in the extending direction due to irradiation of the reflected light from the reflector 211. Therefore, even if the curved portions 23a to 25a are not provided as in the heat conducting member 20 in FIG. Slit 2111 provided corresponding to the extension direction of each extension part 223-225!
- the width dimension of up to 21 lj can be set to either a press fit (fitting fit or intermediate fit) to the extended end 223a to 225a, or a loose fit (clear fit). It is.
- the heat conducting member 220 When set to press fit, the heat conducting member 220 can be attached only by fitting the extended ends 223a to 225a, and when set to loose fit, a sticking agent with good heat conductivity is used. It is preferable to fix the heat conducting member 220 by using it.
- Various configurations according to the heat conductive members 60 to 90 shown in FIGS. 7B to 9 can also be applied to the heat conductive member 220.
- FIG. 14 (a) shows a heat conducting member 240 according to another modification.
- This heat conducting member 240 has a structure in which bent portions are provided at the extended ends 223a to 225a of the heat conducting member 220 in FIG. Specifically, the end portions of the extended portions 243 to 245 extending from the outer fitting annular portion 241 are bent into an L shape to form bent portions 243a to 245a, and the bent portions 243a to 245a are Through holes 243b to 245b are formed.
- the reflector 231 to which the heat conducting member 240 is attached is basically the same as the reflector 211 in FIG. 12, and is provided with a slit 231h. Screw holes 231k are formed in the edge 231b.
- the ends of the extended portions 243 to 245 are fitted into the slit 231 h, and the bent portions 243 a to 245 a are the outer periphery of the reflector 231 ((concave mirror portion 23 la)) 14 (b), the screw N is passed through the through holes 243b to 245b and screwed into the screw holes 231k, and the bent portions 243a to 245a are connected to the reflector 231. Secure to.
- the heat conducting member 240 is firmly attached to the reflector 231 by screwing in this way, the heat conducting member 240 is detached even when subjected to vibration accompanying the movement of the projection type image display device.
- the bent portions 243a to 245a reliably contact the reflector 231, heat conduction can be performed appropriately. Note that instead of screwing, it is possible to apply an adhesive with good thermal conductivity, brazing, etc.If the bent parts 243a to 245a can be firmly fixed only by external fitting, screw them down. If the omission of screws is not performed, the through holes 243a to 245a and the screw holes 231k can be omitted.
- Fig. 15 (a) shows an attachment state according to still another modification.
- the reflector 231 / used in this modification has a configuration in which the slit 231h is omitted from the reflector 231 in FIG. 14 (b), and the screw hole 231 is provided.
- the heat conducting member 243 is basically the same as the structure shown in FIG. 14 (a), but the extension dimension of each extension part 243 to 245 is shortened and the bent part 243a to 245a is changed to the reflector 231 /.
- the dimension is set so as to abut against the inner peripheral surface 231.
- the heat conduction member 240 is attached to the reflector 231 / by fitting the bent portions 243a to 245a into the inner peripheral surface 231 of the reflector 231 / and passing the screw N through the through holes 243a to 245a in this state.
- the bent portions 243a to 245a are fixed to the reflector 231 by screwing into the holes 231k. Therefore, the heat conducting member 240 is firmly fixed to the reflector 231 / and can smoothly conduct heat through the bent portions 243a to 245a.
- FIG. 15 (b) is a modification of the configuration shown in FIG. 15 (a), in which the heat conduction member 24 (is provided with a through hole in the bent portion 243 provided at the extending end of the extending portion 24.
- the reflector 231 is not provided with a screw hole in the edge portion 231b.
- the bent portion 243 is pressed into the inner peripheral surface 231f of the reflector 231 ". It is possible to fit in or fix by using brazing or fixing agent with good thermal conductivity, and the screwing work is omitted.
- FIG. 16 shows a light source device 250 according to still another modified example, and in this light source device 250, an explosion-proof glass provided at a position that is one step deeper than the edge 251b of the opening 251d on the reflection side of the reflector 251
- a concave portion 251f 251h in which a screw hole 251i 251k is formed is formed in an end surface 251c of a mounting recess 251e (not shown).
- the heat conducting member 260 is configured such that a bent portion 263b 265b parallel to the end face 251c of the reflector 251 is further provided at the extending end of the heat conducting member 240 shown in FIG.
- the extended end portion of the extended portion 263 265 extending from the outer fitting annular portion 261 is bent once in an L shape so as to be orthogonal to the extending direction to form a bent portion 263a 265a.
- Bend part 263a 265a The end part on the rear end side is bent again in an L shape to provide a bent part 263b 265b having a plane parallel to the end face 251c of the reflector 251, and penetrates through each bent part 263b 265b. 263c 265c is drilled.
- the outer fitting annular portion 261 is fitted on the sealing portion 13d of the arc tube 12 (glass support 13) previously attached to the reflector 251, and
- the bent rod 263b 265b is placed in the four flanges 251f 251h provided on the end surface 251c of the reflector 251, and the screw N is passed through the through hole 263c 265c and screwed into the screw hole 251i 251k (see FIG. 17 (b)). Since this screwing operation can be performed from the end surface 251c side of the reflector 251, the workability is good.
- the light source device 250 is completed by attaching the explosion-proof glass (not shown) to the recess 25 le after attaching the heat conducting member 260 in this way.
- the bent portion 263b 265b of the heat conducting member 260 is in contact with the end surface 251c of the reflector 251, so that the heat conducting member 260 transmits from the heat conducting member 260 to the reflector 251 through the bent portion 263b 265b.
- the bent portions 263b and 265b may be attached using an adhesive having a good brazing or thermal conductivity.
- the light source device 250 shown in FIG. 16 17 can be specified without an explosion-proof glass attached.
- Fig. 18 (a) shows a cross section (cross section perpendicular to the extending direction) of the extending portion 263 of the heat conducting member 260 shown in Fig.
- the Z direction (corresponding to the first direction) is a direction parallel to the longitudinal direction of the arc tube 12 attached to the reflector 251 shown in FIG. Is equivalent to the direction perpendicular to the Z direction in the cross section. Therefore, the cross-section of the extension 263 has a predetermined cross-sectional area required for heat conduction because the dimension w according to the Z direction is increased by increasing the dimension t (width dimension) according to the Y direction! Even if it is secured, since the width in the Y direction is small, the degree to which the reflected light from the reflector 251 is blocked is minimized.
- FIG. 18 (b) shows a cross-sectional shape of a modified example of the extending portion 263 of FIG. 18 (a), and the cross-sectional shape of the extended portion 263 ′ of the modified example is the attachment of the reflector 251 of the arc tube 12.
- the direction corresponding to the side is a wedge shape with a vertex 263cT on the tapered side.
- the extension 263 ′ of the modified example has an end side 263e ′ on the opening side of the dimension t in FIG. 18 so that a cross-sectional area equivalent to that of the extension 263 in FIG. While the same setting is made, the dimension in the Z direction is set longer than the extension 263 in Fig. 18 (a).
- Fig. 18 (c) is an overlay of the cross-sectional shapes shown in Figs. 18 (a) and 18 (b). Specifically, the light beams Ll and L2 that form the light beam reflected by the reflector 251 are shown. In the extended portion 263 having a rectangular cross section indicated by a two-dot broken line in the figure, the end portion 263d interferes and is blocked.
- the extended portion 263 ′ having a wedge-shaped cross section passes through the vertex 263d ′ and passes through the slope 263 If it does not interfere with 263g ', it can pass through the extension 263', so that the amount of light blocked by the extension 263 'can be minimized.
- the cross-sectional forms shown in FIGS. 18 (a) and 18 (b) are of course applicable to the above-described heat conductive members 20 to 90, 220, 240, and 240 ′.
- the arc tube 12 attached to each of the reflectors 11, 11 ', 111, 121, 131, 211, 231, 231, 231, and 251 constituting the various light source devices of the first embodiment includes: In addition to ultra high pressure mercury lamps, metal lamps, ride lamps, halogen lamps, etc. can be applied.
- the configuration of the projection-type image display device 1 according to the present invention and the light source devices 10, 10 ', 10 ", 100, 210, 250 (including those to which the above-described modifications of the heat conducting member and the reflector are applied) Is It can be applied to either the front projection system or the rear projection system.
- FIGS. 19 and 20 show a light source device 300 according to a second embodiment of the present invention.
- the first heat conducting member 320 is attached to the sealing portion 302b side which is the protruding side of the arc tube 301 attached to the reflector 311 and the second sealing portion 302a which is the attachment side is also secondly attached. It is characterized in that the heat conducting member 330 is attached.
- the heat conducting members 320 and 330 are attached to both sides of the arc tube 301, so that the effects from the sealing portions 302a and 302b on both sides of the glass support 302 of the arc tube 301 and the chamber portion 302c in the center are effective. To take heat away.
- the arc tube 301 has the same configuration as that shown in FIG.
- the reflector 311 is basically the same as that of the first embodiment.
- a cylindrical portion 311c is provided on the apex side of the concave mirror portion 311, and the reflector 311 is provided to attach the arc tube 301 inside the cylindrical portion 311c.
- a hole portion 31 lg communicating with the inside of the housing is formed.
- the hole 311g has a larger hole diameter than that of the first embodiment because the hole 311g is inserted through the pipe portion 331 of the second heat conducting member 330.
- the reflector 311 has a screw hole 3111 in the 31 lb end face on the opening 31 Id side! A total of 3 holes of ⁇ 31 lj are drilled.
- the first heat conducting member 320 has the same configuration as that of the heat conducting member 260 according to the modification of the first embodiment shown in FIG. 16, and extends from the outer ring-shaped portion 321. Bending portions 323a to 325a are formed on the extended end side of 323 to 325, bent portions 323b to 325b are provided on the rear end side of the bent portions 323a to 325a, and the bent portions 323b to 325b are penetrated and 323c. Drill ⁇ 325c!
- the second heat conducting member 330 (corresponding to the mounting side heat conducting member) has a pipe portion 331 having a length equivalent to that of the sealing portion 302a on the mounting side of the arc tube 301.
- This pipe portion 331 The fins 332 to 337 for heat radiation are radially projected from the outer peripheral surface on the side of the other end 33 lb opposite to the one end 33 la on the mounting side of the reflector 311.
- the material of the second heat conducting member 330 can be the same as that of the first heat conducting member 320, and aluminum having a thermal conductivity of about 200 W / m′K is also used in the second embodiment.
- the pipe portion 331 has an inner diameter that allows the sealing portion 302a of the arc tube 301 to be fitted outside, and an outer diameter that can fit within the hole portion 31lg of the reflector 311.
- the sealing portion 30 on the mounting side of the arc tube 301 is used. Apply adhesive (not shown) with good thermal conductivity around 2a, and apply the same adhesive 305 to the outer peripheral surface on the one end 331a side of the pipe part 331 of the second heat conduction member 330. To do.
- the sealing portion 302 a of the arc tube 301 is inserted into the hole 31 lg of the reflector 311, and then the pipe portion 331 of the second heat conducting member 330 is fitted over the sealing portion 302 a of the arc tube 301. Then, it fits in the hole 311g of the reflector 311.
- the fixing agent is solidified, so that the light emitting tube 301 is fixed in the hole 311g in a state of protruding in the reflector 311.
- the first heat conducting member 320 is attached as in the first embodiment.
- the completed light source device 300 has a sealing portion because the pipe portion 331 of the second heat conducting member 330 connects the sealing portion 302a on the mounting side of the arc tube 301 and the reflector 311.
- the heat generated in 302a is stored in the sealing portion 302a itself, and heat can be conducted to the reflector 311 also in the pipe portion 331.
- the pipe portion 331 has one end portion 331a protruding from the inner peripheral surface 311 beam dimension XI of the reflector 311 and close to the chamber portion 301c, the heat of the chamber portion 301c having the highest temperature also passes through the reflector portion 311 through the pipe portion 331. It is possible to transfer heat to.
- the pipe portion 331 has the other end portion 331b side extending outward through the hole 311g of the reflector 311, and the extending portion force also projects the fins 332 to 337, so that the pipe portion 33 1 A part of the heat conducted to the heat moves to the outside of the reflector 311 through the pipe portion 331 that does not move to the reflector 311, and is directly radiated from the fins 332 to 337. Therefore, the heat radiation load of the reflector 311 is reduced, and a large amount of heat can be radiated by the reflector 311 and the fins 332 to 337 as a whole.
- the light source device 300 according to the second embodiment is the same as that of the first embodiment except for the configuration described above, and can be applied to both a projection type image display device of a front projection type and a rear projection type. .
- modifications other than the configurations shown in FIGS. 19 and 20 can be applied.
- FIG. 21 (a) shows a modified light source device 300 ′, which is shown in FIG.
- the arc tube 301, the reflector 311 and the first heat conducting member 320 are used, while the second heat conducting member 340 is configured by only the pipe portion 341.
- the nove part 341 externally fits the sealing part 302a on the mounting side of the arc tube 302, and is fitted in the hole part 31lg to connect the sealing part 302a and the reflector 311 through the adhesive 305.
- the heat path by the pipe part 341 leading to the reflector 311 exists on the sealing part 302a side on the mounting side, the heat generated in the chamber part 302c and the sealing part 302a is efficiently conducted to the reflector 311. It can be done.
- Fig. 21 (b) shows a light source device 350 of another modified example, and this light source device 350 has a hole in a hole portion 351g of a cylindrical portion 351c of a reflector 351 instead of the second heat conducting member.
- a feature is that a cylindrical projecting heat conducting portion 351h projects from the periphery.
- the inner diameter of the hole portion 351b is set to a dimension that allows the sealing portion 302a of the arc tube 301 to be inserted, and the protrusion margin from the inner peripheral surface 351f of the protruding heat conducting portion 35 lh is attached to the hole portion 351g.
- the size is close to the chamber portion 302c of the arc tube 301.
- the heat conducting member 320 is attached to the protruding portion 302b of the arc tube 301 in the same manner as described above.
- the projecting heat conducting part 351h leading to the reflector 351 connects the sealing part 302a and the concave mirror part 351a of the reflector 351 on the mounting side sealing part 302a side. Heat generated in the chamber part 302c and the sealing part 302a can be efficiently conducted to the reflector 351 through the heat conducting part 351h.
- Various modifications according to the first embodiment can be applied to the light source devices 300, 300 ′, and 350 described in the second embodiment, and in particular, the protruding side of the arc tube 301 is sealed.
- Various heat conductive members 20 to 90, 220, 240, and 240 ′ described in the first embodiment can be applied to the first heat conductive member 320 (heat conductive member) attached to the stopper 302b.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Geometry (AREA)
- Projection Apparatus (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Abstract
Description
Claims
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004344749 | 2004-11-29 | ||
| JP2004-344749 | 2004-11-29 | ||
| JP2005-188850 | 2005-06-28 | ||
| JP2005188850A JP3856812B2 (ja) | 2004-11-29 | 2005-06-28 | 光源装置及び投影型画像表示装置 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2006057151A1 true WO2006057151A1 (ja) | 2006-06-01 |
Family
ID=36497891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2005/020375 Ceased WO2006057151A1 (ja) | 2004-11-29 | 2005-11-07 | 光源装置及び投影型画像表示装置 |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP3856812B2 (ja) |
| TW (1) | TWI277709B (ja) |
| WO (1) | WO2006057151A1 (ja) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013120316A (ja) * | 2011-12-08 | 2013-06-17 | Seiko Epson Corp | 光源装置、プロジェクター、および光源装置の製造方法 |
| WO2016034452A1 (en) * | 2014-09-02 | 2016-03-10 | Philips Lighting Holding B.V. | Lighting device |
| CN106595481A (zh) * | 2016-12-14 | 2017-04-26 | 海信集团有限公司 | 激光投影系统的光斑测量方法及装置 |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4612638B2 (ja) * | 2007-01-11 | 2011-01-12 | シャープ株式会社 | 光源装置とこれを用いた映像表示装置 |
| EP2017668B1 (en) * | 2007-07-17 | 2011-06-22 | Ushiodenki Kabushiki Kaisha | Light source device having noise reduction properties |
| US8858032B2 (en) * | 2008-10-24 | 2014-10-14 | Cree, Inc. | Lighting device, heat transfer structure and heat transfer element |
| JP2011029432A (ja) * | 2009-07-27 | 2011-02-10 | Sharp Corp | 発光装置およびそれを備えた照明装置 |
| JP2011049513A (ja) * | 2009-07-30 | 2011-03-10 | Ushio Inc | 光源装置 |
| JP2011054759A (ja) * | 2009-09-02 | 2011-03-17 | Sharp Corp | 波長変換部材の保持部材とその製造方法、波長変換部材の放熱構造、発光装置 |
| JP6064279B2 (ja) * | 2012-12-05 | 2017-01-25 | パナソニックIpマネジメント株式会社 | 照明器具 |
| TWI595189B (zh) * | 2014-09-02 | 2017-08-11 | Huan-Chiu Chou | 內反射燈具 |
| CN106886122A (zh) * | 2015-12-15 | 2017-06-23 | 鸿富锦精密工业(武汉)有限公司 | 投影仪及投影仪的散热方法 |
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| JPS4833938B1 (ja) * | 1967-07-14 | 1973-10-17 | ||
| JPH07226103A (ja) * | 1994-02-10 | 1995-08-22 | Eye Lighting Syst Corp | 照明器具用の遮光体 |
| JP2001222976A (ja) * | 1999-12-02 | 2001-08-17 | Matsushita Electric Ind Co Ltd | 放電ランプおよびランプ装置 |
| JP2004170877A (ja) * | 2002-11-22 | 2004-06-17 | Sharp Corp | 反射体及びその製造方法 |
| JP2004253703A (ja) * | 2003-02-21 | 2004-09-09 | Fujitsu Ltd | 半導体装置及びその製造方法 |
| JP2004301945A (ja) * | 2003-03-28 | 2004-10-28 | Seiko Epson Corp | 光源装置及びプロジェクタ |
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2005
- 2005-06-28 JP JP2005188850A patent/JP3856812B2/ja not_active Expired - Fee Related
- 2005-11-07 WO PCT/JP2005/020375 patent/WO2006057151A1/ja not_active Ceased
- 2005-11-15 TW TW094140081A patent/TWI277709B/zh not_active IP Right Cessation
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4833938B1 (ja) * | 1967-07-14 | 1973-10-17 | ||
| JPH07226103A (ja) * | 1994-02-10 | 1995-08-22 | Eye Lighting Syst Corp | 照明器具用の遮光体 |
| JP2001222976A (ja) * | 1999-12-02 | 2001-08-17 | Matsushita Electric Ind Co Ltd | 放電ランプおよびランプ装置 |
| JP2004170877A (ja) * | 2002-11-22 | 2004-06-17 | Sharp Corp | 反射体及びその製造方法 |
| JP2004253703A (ja) * | 2003-02-21 | 2004-09-09 | Fujitsu Ltd | 半導体装置及びその製造方法 |
| JP2004301945A (ja) * | 2003-03-28 | 2004-10-28 | Seiko Epson Corp | 光源装置及びプロジェクタ |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013120316A (ja) * | 2011-12-08 | 2013-06-17 | Seiko Epson Corp | 光源装置、プロジェクター、および光源装置の製造方法 |
| WO2016034452A1 (en) * | 2014-09-02 | 2016-03-10 | Philips Lighting Holding B.V. | Lighting device |
| CN106662302A (zh) * | 2014-09-02 | 2017-05-10 | 飞利浦灯具控股公司 | 照明设备 |
| US10047945B2 (en) | 2014-09-02 | 2018-08-14 | Philips Lighting Holding B.V. | Lighting device |
| CN106662302B (zh) * | 2014-09-02 | 2019-11-19 | 飞利浦灯具控股公司 | 照明设备 |
| CN106595481A (zh) * | 2016-12-14 | 2017-04-26 | 海信集团有限公司 | 激光投影系统的光斑测量方法及装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| TW200632251A (en) | 2006-09-16 |
| TWI277709B (en) | 2007-04-01 |
| JP2006179450A (ja) | 2006-07-06 |
| JP3856812B2 (ja) | 2006-12-13 |
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