WO2012144542A1 - Dispositif de blindage de la lumière et dispositif de source de lumière - Google Patents

Dispositif de blindage de la lumière et dispositif de source de lumière Download PDF

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Publication number
WO2012144542A1
WO2012144542A1 PCT/JP2012/060532 JP2012060532W WO2012144542A1 WO 2012144542 A1 WO2012144542 A1 WO 2012144542A1 JP 2012060532 W JP2012060532 W JP 2012060532W WO 2012144542 A1 WO2012144542 A1 WO 2012144542A1
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WO
WIPO (PCT)
Prior art keywords
light
light source
inclined posture
posture
light shielding
Prior art date
Application number
PCT/JP2012/060532
Other languages
English (en)
Japanese (ja)
Inventor
雅之 角波
Original Assignee
株式会社Ｇｓユアサ
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 株式会社Ｇｓユアサ filed Critical 株式会社Ｇｓユアサ
Priority to CN201280005498XA priority Critical patent/CN103314251A/zh
Priority to JP2013511029A priority patent/JPWO2012144542A1/ja
Priority to KR1020137013142A priority patent/KR20130142140A/ko
Publication of WO2012144542A1 publication Critical patent/WO2012144542A1/fr

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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
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/02—Details
    • H05K5/0213—Venting apertures; Constructional details thereof

Definitions

  • the present invention relates to a light-shielding device provided with a light-shielding body that allows ventilation and blocks the passage of light, and further includes a light source lamp in the device housing, and cooling air for cooling the light source lamp.
  • An exhaust port or an intake port for exhaust or intake is formed on a side surface of the apparatus housing, and the exhaust port or the intake port allows light to pass through the cooling air and block light emitted from the light source lamp.
  • the present invention relates to a light source device provided with a body.
  • a light source lamp mainly using visible light emission includes, for example, a projector, and a light source lamp mainly using ultraviolet light emission (that is, an ultraviolet lamp) is used.
  • a light source lamp mainly using ultraviolet light emission that is, an ultraviolet lamp
  • the ultraviolet irradiation device is used in various applications such as a curing and drying process of applied ink in an inkjet printing apparatus, a process of processing a semiconductor element, and a cleaning process of various members.
  • it is often performed to flow cooling air into a device casing for cooling a light source lamp and other peripheral components, and an exhaust port or an intake port is provided on a side surface of the device case.
  • the inventor of the present application arranges a filter provided for removing punched metal for adjusting the exhaust air volume or ink scattered from the irradiated object at the exhaust port or the intake port to leak out the emitted light.
  • the present invention has been made in view of such circumstances, and an object thereof is to secure airflow and sufficiently suppress leakage of light while suppressing an increase in component cost as much as possible. .
  • a first invention of the present application is a light-shielding device provided with a light-shielding body that allows ventilation and blocks the passage of light, and the light-shielding body includes a plane portion and an inclined posture portion.
  • a plurality of the light shielding bodies are arranged in the thickness direction of the plane portion in a state where the inclination directions of the inclined posture portions are alternately reversed.
  • each light shielding body has an area through which the light beam incident on the light shielding body passes as it is, and the light shielding ability is insufficient. Even if two such light-shielding bodies are simply arranged side by side in the thickness direction of the plane portion, the light-shielding effect is insufficient, and a position difference is provided by adding a phase difference to the two in order to increase the light-shielding effect.
  • the light shielding body is bent and formed in an inclined posture by being partially separated from a planar portion of the plate material. That is, for example, by forming a through groove in the plate material, a part of the plate material is partially cut off, and the cut-off portion is bent into an inclined posture, which shows a preferable configuration of the light shielding body. is there.
  • a plurality of the inclined posture portions are provided in a state of being arranged in the set direction with substantially the same posture. This shows a preferable configuration of the inclined posture portion.
  • the plurality of light shielding bodies have the same shape, and the inclined posture portion in each of the light shielding bodies. Are arranged in the thickness direction of the planar portion in a posture in which the arrangement directions of the plane portions coincide with each other. This shows a preferable configuration of the plurality of light shields.
  • a light source lamp is provided in the apparatus casing, and an exhaust port or an intake port for discharging or sucking cooling air for cooling the light source lamp is provided on a side surface of the apparatus casing.
  • the light source device is provided with a light shielding body that is formed in the cooling air flow path and that allows the cooling air to pass therethrough and blocks light emitted from the light source lamp. Is configured to include a plane portion and an inclined posture portion, and a plurality of the light shields are arranged in the thickness direction of the plane portion in a state where the inclination directions of the inclined posture portions are alternately reversed. Configured.
  • a light shielding body having a flat portion and an inclined posture portion that allows ventilation and is arranged to prevent the light emitted from the light source lamp from leaking out from the exhaust port or the air intake port.
  • Three or more are arranged side by side in the thickness direction of the portions so that the inclination directions of the inclined posture portions of the respective light shielding bodies are alternately reversed.
  • Each light shielding body has an area through which the light beam incident on the light shielding body passes as it is, and the light shielding ability is insufficient. Even if two such light-shielding bodies are arranged side by side in the thickness direction of the plane portion, the light-shielding effect is inadequate.
  • the light shielding body is disposed in the vicinity of the exhaust port or the intake port. That is, light shielding can be efficiently performed by installing the light shielding body in the vicinity of the exhaust port or the intake port, which is the last position where the light emitted from the light source lamp leaks outside the apparatus housing.
  • the shape of the inclined surface of the inclined posture portion is formed in a substantially rectangular shape. That is, by making the shape of the inclined posture portion of the light shielding body a shape that is often used in a general louver, it is possible to ensure a good balance between light shielding and ventilation with a simple shape that is easy to manufacture.
  • the light shielding body is formed to be bent in an inclined posture by being partially separated from a planar portion of the plate material. Yes. That is, for example, by forming a through groove in the plate material, a part of the plate material is partially cut off, and the cut-off portion is bent into an inclined posture, which shows a preferable configuration of the light shielding body. is there.
  • a plurality of the inclined posture portions are provided in a state in which a plurality of the inclined posture portions are arranged in a set direction with substantially the same posture. ing. This shows a preferable configuration of the inclined posture portion.
  • the plurality of light shielding bodies have the same shape, and the inclined posture portion of each light shielding body. Are arranged in the thickness direction of the planar portion in a posture in which the arrangement directions of the plane portions coincide with each other. This shows a preferable configuration of the plurality of light shields.
  • a plurality of (three or more) light shields having a plane portion and an inclined posture portion are manufactured, and ventilation is performed with a simple configuration by arranging them in an appropriate posture. Since it secures and blocks the passage of light rays, it is possible to secure airflow and sufficiently suppress leakage of light rays while suppressing the increase in component costs as much as possible.
  • the second aspect of the present invention there is no need for extra processing such as welding processing or molding processing that only partially separates the light shielding body from the flat surface portion of the plate material and bends it into an inclined posture, and can be created by a simple method. Therefore, the part cost can be suppressed as much as possible.
  • a configuration in which a plurality of inclined posture portions of the light shielding body are arranged in the set direction in substantially the same posture thereby reducing the apparatus cost and ensuring the necessary functions due to the ease of manufacture.
  • a plurality of light shields having the same shape are arranged in the thickness direction of the planar portion of the light shield in a posture in which the alignment directions of the respective inclined posture portions coincide. Therefore, it is possible to achieve a good balance between the reduction of the device cost due to the ease of manufacture and the securing of the necessary functions.
  • a plurality (three or more) of simple shapes of light-shielding bodies formed by bending a plate material having a flat portion and an inclined posture portion are produced in the same shape.
  • the ventilation is ensured and the passage of light is blocked, so that the increase in parts cost is suppressed as much as possible while ensuring sufficient ventilation and leakage of light. It became possible to achieve suppression.
  • the light shielding body is installed in the vicinity of the exhaust port or the intake port, which is the last position where the light emitted from the light source lamp leaks outside the apparatus housing, thereby efficiently shielding the light. It can be performed.
  • the shape of the inclined posture portion of the light shielding body is a shape that is often used in a general louver, so that it is a simple shape that is easy to manufacture, with light shielding and ventilation. Can be secured in a well-balanced manner.
  • there is no need for extra processing such as welding processing or molding processing that only partially separates the light shielding body from the flat surface portion of the plate material and bends it into an inclined posture, and is simple. Since it can be created by the method, the part cost can be suppressed as much as possible.
  • the configuration in which a plurality of inclined posture portions of the light shielding body are arranged in the set direction in substantially the same posture thereby reducing the apparatus cost and ensuring the necessary functions due to the ease of manufacture.
  • a plurality of light shielding bodies having the same shape are arranged in the thickness direction of the planar portion of the light shielding body in a posture in which the alignment directions of the respective inclined posture portions coincide with each other. Therefore, it is possible to achieve a good balance between the reduction of the device cost due to the ease of manufacture and the securing of the necessary functions.
  • FIG. 1 is a front view showing an internal configuration of an ultraviolet irradiation apparatus according to an embodiment of the present invention.
  • FIG. 2 is a side view showing the internal configuration of the ultraviolet irradiation apparatus according to the embodiment of the present invention.
  • FIG. 3 is a diagram showing the ultraviolet irradiation apparatus according to the embodiment of the present invention in a plan view.
  • FIG. 4 is a perspective view seen from the lower side showing the arrangement of the light shields according to the embodiment of the present invention.
  • an ultraviolet irradiation device UR will be described as an example of the light source device.
  • the ultraviolet irradiation device UR of the present embodiment is used by being attached to a print head of a commercial inkjet printing device, and moves with the print head when the print head is scanned to form an image. Then, the UV ink of the formed image is instantaneously cured by irradiating it with ultraviolet rays and dried.
  • the ultraviolet irradiation apparatus UR includes a blower unit 2, a lamp unit 3, a shutter unit 4, and an exhaust unit 5 provided in the apparatus housing 1. It is configured as the main part. These units are connected to each other or are fixed in the apparatus housing 1 by a fixing member (not shown).
  • a part of the part is shown in a state where it is appropriately cut out.
  • the apparatus housing 1 is formed in a rectangular parallelepiped shape, and for convenience of explanation, FIG. 1 is illustrated in a front view, and a pair of upper and lower top plates 21 and a bottom plate 22 and a pair of right and left right plates 23 and a left plate 24 are shown. 1 and a pair of front side plate 25 and back side plate 26 (see FIG. 2) which are parallel to the paper surface.
  • the blower unit 2 is configured by a counter-rotating fan 2a, and the intake side of the fan 2a is formed on a top plate 21 that is one side surface of the apparatus housing 1. It is arranged close to the intake port 21a. The air sucked from the outside of the device housing 1 by the rotation of the fan 2a is blown toward the lower side inside the device housing 1 as cooling air.
  • the exhaust unit 5 configured mainly with a duct 5a for passing cooling air in the vertical direction is an exhaust port 21b arranged adjacent to the intake port 21a on the top plate 21 of the apparatus housing 1 (see FIG. 3). It is located immediately below and is disposed adjacent to the blower unit 2 in the apparatus housing 1.
  • the exhaust port 21b and the intake port 21a are mainly for discharging and sucking cooling air for cooling the light source lamp 6 provided in the lamp unit 3.
  • the lamp unit 3 includes a light source lamp 6 having a substantially rod-like outer shape.
  • the light source lamp 6 of the present embodiment is an ultraviolet lamp that emits light in the ultraviolet region.
  • the lamp unit 3 further includes a pair of reflection mirrors 7a and 7b that condense the emitted ultraviolet light from the light source lamp 6 toward the bottom plate 22 side of the apparatus housing 1, and a pair of support mirrors 7a and 7b.
  • the mirror holders 8a and 8b and a frame 3a having a mouth shape in a plan view are provided so as to surround them.
  • 2A shows a state in which the ultraviolet irradiation device UR with the left side plate 24 removed is viewed from the left side plate 24 side
  • FIG. 2B shows the same direction as FIG.
  • FIG. 2 is a cross-sectional view of the apparatus housing 1 near the center in the width direction.
  • FIG. 2B in order to make the drawing easier to see, the hatched lines indicating the cross sections are appropriately omitted in the details of the front side plate 25, the back side plate 26, and the like.
  • the light source lamp 6 has a cylindrical shape at a portion contributing to ultraviolet light emission, and has a substantially rod-like outer shape as a whole.
  • a pair of electrodes 6a and 6b for applying a high voltage for discharge are arranged at both ends in the longitudinal direction of the light source lamp 6, and the electrodes 6a and 6b are terminals 3c, It is supported by 3d.
  • the vicinity of the electrodes 6 a and 6 b in the light source lamp 6 penetrates the frame 3 a of the lamp unit 3 and protrudes to the outside of the lamp unit 3.
  • the cooling wind shielding member 9 is attached to the frame 3a so as to cover the vicinity of the electrodes 6a and 6b, and the terminal 3c that supports the electrode 6a is attached to the cooling wind shielding member 9.
  • the cooling air shielding member 9 is for shielding the cooling air from the blower unit 2 and preventing the vicinity of the electrode 6a of the light source lamp 6 from being excessively cooled.
  • the apparatus configuration is reduced in size because the ultraviolet irradiation device UR is attached to the print head of the ink jet printing apparatus, and the light source lamp 6 is also a small light emission length of 200 mm or less. Things are used.
  • the shutter unit 4 is a unit for switching whether to emit the ultraviolet rays emitted from the light source lamp 6 from the ultraviolet emission window 10 located immediately adjacent to the shutter unit 4 to the outside of the apparatus housing 1.
  • the shutter unit 4 includes a shutter 4a having a shape in which a rectangular metal plate is bent in three steps at a shallow angle on the same side, and a motor 4b for driving the shutter 4a to open and close.
  • the shutter 4a is arranged with a space in the frame 4c produced in a substantially U shape in plan view as a movable range, and in the standing posture shown by a solid line in FIG. It is located so as to block the open side of the character. In this standing posture, the shutter 4a is in an open state, and the ultraviolet light emitted from the light source lamp 6 passes through the space surrounded by the frame 4c and the shutter 4a in the standing posture.
  • the frame 4c is provided as a light-shielding plate that suppresses the leakage of ultraviolet rays to other parts in the apparatus housing 1, and the side of the frame 4c that faces the space through which the emitted ultraviolet rays of the light source lamp 6 pass.
  • Each surface is mirror-finished to suppress the reflection loss of ultraviolet rays emitted from the light source lamp 6.
  • the surface of the shutter 4a on the side where the ultraviolet light passes is also mirror-finished in the same manner as described above.
  • a motor holding plate 46 is attached to the left side plate 24 side, and a rotating shaft holding plate 44 is attached to the right side plate 23 side.
  • the motor 4b is arranged at a lower position of the blower unit 2 outside the space surrounded by the shutter 4a and the frame 4c while being held by the motor holding plate 46.
  • the motor holding plate 46 extends above the installation position of the motor 4b, and prevents the life of the motor 4b and related parts from being shortened by ultraviolet rays leaking from the vicinity of the electrode 6a of the light source lamp 6 positioned immediately above. It is out.
  • the rotating shaft 41 of the motor 4b that has passed through the speed reducer passes through the frame 4c and is attached to a fixing member 42 that is attached to the end of the shutter 4a. Further, the fixing member 43 attached to the end portion on the opposite side to the existence side of the fixing member 42 is also provided with a rotating shaft 43a.
  • a bearing 45 is attached to the rotating shaft holding plate 44, and the rotating shaft 43a passes through the vertical wall of the frame 4c and is rotatably supported by the bearing 45.
  • the rotating shaft 41 and the rotating shaft 43a are arranged on a common rotating shaft core, and the fixing member 42 and the fixing member 43 are attached near the lower end of the shutter 4a in a standing posture, and the shutter 4a is moved by driving the motor 4b. It is configured to be driven dynamically.
  • the shutter 4a By rotating the motor 4b, the shutter 4a is driven to be switched between a standing posture shown by a solid line and a substantially horizontal posture shown by a two-dot chain line in FIG.
  • the standing posture shown by the solid line is the opening posture of the shutter 4a as described above, and the shutter 4a has the ultraviolet ray emission window 10 in which the emitted ultraviolet rays of the light source lamp 6 are located immediately below the shutter unit 4 in this open posture.
  • a substantially horizontal posture indicated by a two-dot chain line in FIG. 2B is a closed posture of the shutter 4a. In this closed posture, the shutter 4a is convex toward the light source lamp 6 side.
  • the shutter 4 a blocks ultraviolet rays emitted from the light source lamp 6 and prevents the ultraviolet rays from being emitted from the ultraviolet emission window 10 to the outside of the apparatus housing 1.
  • the ultraviolet emission window 10 is formed in the bottom plate 22 as a rectangular opening.
  • a quartz transparent plate 11 that transmits ultraviolet rays is attached to the ultraviolet emission window 10 so as to cover the ultraviolet emission window 10.
  • the cooling air taken into the device casing 1 by the blower unit 2 is blown down to the position where the motor 4b on the lower end side of the device casing 1 is present, and passes through many gaps between the units.
  • the exhaust unit 5 After entering the frame 4c of the shutter unit 4 and then rising and cooling the light source lamp 6, it passes through the exhaust unit 5 and is discharged from the exhaust port 21b.
  • the cooling air rising from the lamp unit 3 is allowed to pass through and exhausted from the exhaust port 21 b, and the emitted ultraviolet light of the light source lamp 6 leaking from the ventilation gap of the lamp unit 3 is emitted from the apparatus housing 1. It is required to suppress leakage as much as possible.
  • a light shielding device SD for allowing the passage of the cooling air and blocking the emitted light (exited ultraviolet rays) of the light source lamp 6 is provided in the middle of the flow path of the cooling air. More specifically, the light shielding device SD is attached at a position close to the exhaust port 21 b in the vicinity of the upper end of the exhaust unit 5.
  • the light shielding device SD includes three light shielding bodies 51 having the same shape. As shown in FIG. 4 showing the light shielding body 51 as a perspective view of the light shielding body 51 as viewed from below, a through-groove is formed in a U-shape on a planar portion 51b of a rectangular metal plate. By doing so, a tilted posture portion 51a is formed in which the portion is bent and formed into a tilted posture.
  • the inclined posture portion 51a having a substantially rectangular (more specifically, strip-shaped) inclined surface is formed by connecting the long side of the inclined surface to the flat portion 51b of the light shielding body 51 and forming the inclined posture portion 51a.
  • the opening 51c is a passage that allows the cooling air to pass therethrough.
  • the inclination angle of the inclined posture portion 51a with respect to the planar portion 51b is about 45 degrees.
  • the inclined posture portion 51a having a substantially rectangular inclined surface is formed in a state where a plurality of inclined posture portions 51a are arranged in substantially the same posture in a direction along the short side of the rectangular opening 51c.
  • a rectangular fixing protrusion 51d is formed on the long side edge of the light shielding body 51. By fitting the fixing protrusion 51d into an attachment hole formed in the duct 5a, the inside of the duct 5a.
  • the light shield 51 is fixed. As shown in FIG. 1, the three light shields 51 are arranged side by side in the thickness direction of the plane portion 51b. The inclination directions of the inclined posture portions 51a are alternated.
  • the alignment directions of the inclined posture portions 51a are the same between the light shielding bodies 51, but the inclined posture portions 51a are arranged in a state where the inclination directions are alternately reversed.
  • the three light shields 51 are illustrated with an interval therebetween for easy viewing of the drawing, but the actual arrangement interval is close as illustrated in FIG. 1.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Light Sources And Details Of Projection-Printing Devices (AREA)
  • Ink Jet (AREA)

Abstract

L'invention porte sur un dispositif de blindage de la lumière, lequel dispositif fonctionne de façon à assurer une ventilation et supprime de façon suffisante une fuite de rayons lumineux tout en supprimant des augmentations dans des coûts de composants autant que possible. Des corps de blindage de la lumière (51) sont disposés pour permettre une ventilation et un blindage du passage de rayons lumineux. Les corps de blindage de la lumière (51) sont constitués par le fait qu'ils comportent une pluralité de parties à attitude en pente (51a) incurvées en présentant une attitude en pente et partiellement séparées d'une partie de surface plate d'un matériau en feuille dans un état d'alignement dans une direction spécifiée en présentant sensiblement les mêmes attitudes. Les corps de blindage de la lumière (51), qui ont la même forme, sont disposés dans une attitude telle que la direction dans laquelle les parties à attitude en pente (51a) sur chacun des corps de blindage de la lumière (51) sont alignées, et qu'au moins trois sont alignées dans la direction de l'épaisseur des parties de surface plate. La constitution est telle que la pluralité de corps de blindage de la lumière (51) sont alignés dans un état dans lequel l'orientation de la pente des parties à attitude en pente (51a) est inversée de façon alternée.
PCT/JP2012/060532 2011-04-20 2012-04-19 Dispositif de blindage de la lumière et dispositif de source de lumière WO2012144542A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN201280005498XA CN103314251A (zh) 2011-04-20 2012-04-19 遮光装置以及光源装置
JP2013511029A JPWO2012144542A1 (ja) 2011-04-20 2012-04-19 遮光装置及び光源装置
KR1020137013142A KR20130142140A (ko) 2011-04-20 2012-04-19 차광 장치 및 광원 장치

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2011093851 2011-04-20
JP2011-093851 2011-04-20

Publications (1)

Publication Number Publication Date
WO2012144542A1 true WO2012144542A1 (fr) 2012-10-26

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PCT/JP2012/060532 WO2012144542A1 (fr) 2011-04-20 2012-04-19 Dispositif de blindage de la lumière et dispositif de source de lumière

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JP (1) JPWO2012144542A1 (fr)
KR (1) KR20130142140A (fr)
CN (1) CN103314251A (fr)
TW (1) TW201248055A (fr)
WO (1) WO2012144542A1 (fr)

Cited By (2)

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Publication number Priority date Publication date Assignee Title
CN112057665A (zh) * 2020-09-18 2020-12-11 深圳思镁科技有限公司 空气消毒机uv光源的防漏光支撑结构
CN115185148A (zh) * 2022-04-29 2022-10-14 赣州轰天炮显示电子科技有限公司 一种风冷降温及自动调节投影仪进风口风量的投影仪

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Publication number Priority date Publication date Assignee Title
US10481477B2 (en) * 2016-01-08 2019-11-19 Maxell, Ltd. Projector apparatus
CN108826225A (zh) * 2018-07-25 2018-11-16 苏州市琳珂照明科技有限公司 测试灯箱的遮光机构

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JPS6273095U (fr) * 1985-10-28 1987-05-11
JP2007298892A (ja) * 2006-05-02 2007-11-15 Sanyo Electric Co Ltd プロジェクタ装置

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CN1237390C (zh) * 2002-01-23 2006-01-18 明基电通股份有限公司 新式遮光导风构造
JP4030325B2 (ja) * 2002-03-11 2008-01-09 三洋電機株式会社 投写型映像表示装置
CN1661465A (zh) * 2004-02-24 2005-08-31 乐金电子（沈阳）有限公司 液晶显示投影仪的抽／排气栅结构
DE602005022377D1 (de) * 2004-03-29 2010-09-02 Canon Kk Bildprojektionsgerät mit einem kompakten Lampen-Kühlsystem
KR100686023B1 (ko) * 2004-05-27 2007-02-23 엘지전자 주식회사 프로젝터의 누광 차단 장치
JP2006162840A (ja) * 2004-12-06 2006-06-22 Plus Vision Corp 排気構造を有する光源ユニットおよびそれを用いたプロジェクタ

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Publication number Priority date Publication date Assignee Title
JPS6273095U (fr) * 1985-10-28 1987-05-11
JP2007298892A (ja) * 2006-05-02 2007-11-15 Sanyo Electric Co Ltd プロジェクタ装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112057665A (zh) * 2020-09-18 2020-12-11 深圳思镁科技有限公司 空气消毒机uv光源的防漏光支撑结构
CN115185148A (zh) * 2022-04-29 2022-10-14 赣州轰天炮显示电子科技有限公司 一种风冷降温及自动调节投影仪进风口风量的投影仪

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KR20130142140A (ko) 2013-12-27
CN103314251A (zh) 2013-09-18
TW201248055A (en) 2012-12-01
JPWO2012144542A1 (ja) 2014-07-28

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