WO2018205421A1 - 投影机 - Google Patents

投影机 Download PDF

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Publication number
WO2018205421A1
WO2018205421A1 PCT/CN2017/094803 CN2017094803W WO2018205421A1 WO 2018205421 A1 WO2018205421 A1 WO 2018205421A1 CN 2017094803 W CN2017094803 W CN 2017094803W WO 2018205421 A1 WO2018205421 A1 WO 2018205421A1
Authority
WO
WIPO (PCT)
Prior art keywords
lens
air inlet
air outlet
projector
housing
Prior art date
Application number
PCT/CN2017/094803
Other languages
English (en)
French (fr)
Inventor
田凤莲
梁超
李屹
Original Assignee
深圳市光峰光电技术有限公司
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 深圳市光峰光电技术有限公司 filed Critical 深圳市光峰光电技术有限公司
Priority to JP2019561810A priority Critical patent/JP6986573B2/ja
Priority to US16/611,899 priority patent/US20210191241A1/en
Publication of WO2018205421A1 publication Critical patent/WO2018205421A1/zh

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Classifications

    • 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
    • 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
    • G03B21/145—Housing details, e.g. position adjustments thereof

Definitions

  • the utility model relates to the field of optics, in particular to an engineering projector.
  • the lens is in the middle of the front of the machine, and is also in the middle of the air inlet and outlet of the machine.
  • the lens entrance surface is easily contaminated by dust on the air duct. , causing the lens to often need maintenance.
  • the lens bracket is provided with a connecting line, which is close to the lens.
  • the connecting line on the bracket sometimes blocks or the line is clamped, which hinders the smooth replacement of the lens.
  • the main technical problem to be solved by the present invention is to provide a projector with a lens shield to solve the problem that the lens is easy to be ashed, difficult to maintain, and inconvenient to disassemble in the prior art.
  • a technical solution adopted by the present invention is to provide a projector including a housing having an air inlet surface and an air outlet surface, and a lens module located in the housing.
  • An air inlet is disposed on the air inlet surface
  • an air outlet is disposed on the air outlet surface
  • a air passage for gas circulation is formed between the air inlet and the air outlet
  • the lens module includes a lens and a setting A shield on the periphery of the lens that isolates the lens from the air duct.
  • the air inlet surface is opposite to the air outlet surface, and the lens module is located between the air inlet surface and the air outlet surface.
  • the projector further comprises a main board, a heat sink, a laser and a color wheel assembly disposed between the air inlet surface and the air outlet surface.
  • the heat sink is located between the air inlet and the lens module, and the shield includes a first surface adjacent to the heat sink, a second surface disposed opposite to the first surface, and a connection The first surface and the third surface of the second surface.
  • the first surface is provided with a first fixing portion connected to the housing
  • the second surface is provided with a second fixing portion connected to the housing.
  • a fan disposed corresponding to the air outlet is disposed at the air outlet.
  • the housing comprises a lens mounting surface connecting the air inlet surface and the air outlet surface, and the lens mounting surface is provided with a lens mounting hole.
  • the lens module further includes a lens holder connected to the housing for fixing the lens and the shield, and the lens bracket is disposed corresponding to the lens mounting hole.
  • a side of the third surface adjacent to the lens holder is provided with a card slot, and the card slot is snap-fitted to the lens holder.
  • the third surface is provided with a fixing hole, and the fixing hole is disposed at two sides of the card slot, and the shield and the lens holder are fixed by the fixing hole.
  • a side of the third surface adjacent to the housing is provided with a seating portion of the lens, and the protective cover abuts the edge of the lens through the retaining portion.
  • the projector includes a lens cable, and the lens cable is electrically connected to the lens through a lens holder, and the housing forms a receiving space of the lens between the housing and the housing.
  • the lens connection is located outside the receiving space.
  • the utility model has the beneficial effects that the utility model provides a projector, which is provided with a protective cover on the lens, which can prevent the lens from entering the ash and can be spaced apart from the internal space of the projector for the lens. Disassembly and maintenance with a good user experience.
  • FIG. 1 is a schematic view showing a partially assembled structure of a projector in which the projector of the present invention is not mounted;
  • FIG. 2 is a partial assembled structural view of the projector omitting part of the housing of the present invention
  • FIG. 3 is a schematic structural view of a protective cover of the projector of the present invention.
  • FIG. 4 is a schematic view of the internal assembly of the projector of the present invention.
  • the projector of the present invention includes a housing 1 having a receiving space, a main board 2 housed in the housing 1, a lens module, a heat sink 7, a laser, and a color wheel assembly.
  • the housing 1 includes an air inlet surface 11 and an air outlet surface 12 perpendicular to the main board 2, and a top surface 13 and a bottom surface connecting the air inlet surface 11 and the air outlet surface 12.
  • the lens module, the heat sink 7 and the color wheel assembly are both located between the air inlet surface 11 and the air outlet surface 12.
  • the main board 2 is fixed to the bottom surface of the casing 1.
  • the main board 2 is a separate integrated circuit board fixed on the bottom surface of the casing 1 , and a plurality of sockets having different functions can be disposed thereon.
  • the main board 2 is provided with a plurality of module sockets. , power control socket and DMD jack.
  • the main board 2 may also be integrally formed with the housing 1 and integrated at the bottom of the housing 1.
  • the main board 2 can cover the bottom space of the entire projector, or can occupy only a part of the space inside the casing, and can be implemented as long as it is integrated.
  • the air inlet surface 11 is provided with an air inlet
  • the air outlet surface 12 is provided with an air outlet 121.
  • the air inlet of the air inlet surface 11 is disposed corresponding to the air outlet 121 of the air outlet surface 12 to form an air passage for gas circulation.
  • the corresponding air outlet 121 is provided with a fan 6 for promoting gas flow and enhancing internal heat dissipation of the projector.
  • the lens module includes a lens 3, a lens holder 4 for fixing the lens 3, and a shield 5. Further, the housing 1 further includes a lens mounting surface 14 that connects the air inlet surface 11 and the air outlet surface 12 and is located between the top surface 12 and the bottom surface.
  • the lens mounting surface 14 is provided with a lens mounting hole 141.
  • the lens 3 is inserted into the inside of the casing 1 through the lens mounting hole 141.
  • the incident direction of the lens 3 light is perpendicular to the flow direction of the gas in the air duct. That is, the lens 3 is located on the wind receiving surface of the projector.
  • the lens holder 4 is disposed corresponding to the lens mounting hole 141 to form a mounting position of the lens 3.
  • the lens 3 is electrically connected to the main board 2 through the lens connection of the lens holder 4, and the lens connection lines on the projector are fixedly connected to the lens holder 4.
  • a shield 5 is provided on the outer circumference of the lens 3 for isolating the lens from the air duct.
  • the shield 5 includes a first surface 51 disposed opposite the air inlet surface 11, a second surface 52 disposed opposite the air outlet surface 12, and a third surface connecting the first surface 51 and the second surface 52. 53.
  • a first fixing portion 511 connected to the main board 2 is disposed on a side of the first surface 51 adjacent to the main board 2, and a second fixing portion 521 connected to the main board 2 is disposed on a side of the second surface 52 adjacent to the main board 2.
  • the protective cover 5 and the housing 1 form a space around the lens mounting position, during which the receiving space of the lens 3 is formed, and the lens cable is isolated outside the receiving space.
  • the lens can be easily replaced when the lens is disassembled, and the lens connection is prevented from being blocked or the wire is clamped to affect the reliability of the product. Moreover, the internal space of the projector will not be seen when the lens is removed and replaced, ensuring the aesthetic appearance of the product.
  • the third surface 53 is adjacent to the lens holder 4, and a side away from the lens mounting surface is provided with a card slot 531 which is snap-fitted to the lens holder 4.
  • the lens bracket is provided with a corresponding buckle or step, thereby improving the fixing reliability of the shield 5 and the lens holder 4.
  • the third surface 53 is further provided with a fixing hole 532.
  • two fixing holes 532 are respectively disposed on two sides of the card slot 531 for further mounting of the bracket 4 and the shield. Fixing, through the fixing hole 532, the fixing bracket 4 can be provided with a matching bump or a stud; or the fixing hole 532 can be screwed, and both can be implemented.
  • a side of the third surface 53 close to the lens mounting surface is provided with a lens retaining portion 533 through which the shield 5 abuts against the edge of the lens 3.
  • the lens 3, the shield 5 and the lens holder 4 are formed into an integral structure to provide a dustproof effect as a whole.
  • the color wheel assembly includes a color wheel and a color wheel drive.
  • the laser is used to emit laser light, which generates a large amount of heat during operation. It is the main heat source of the projector of the present invention.
  • the projector can also be provided with a DMD driving device for adjusting imaging and power control on the main board.
  • the power control board that is electrically connected to the board socket also generates heat.
  • the heat sink 7 is thermally disposed on the upper layer of the laser. Specifically, in the embodiment, the laser and the heat sink are located between the air inlet and the lens module.
  • the airflow entering the air inlet passes through the heat sink to dissipate heat from the projector, and then passes through the lens module and then flows out from the air outlet under the driving of the fan 6, thereby realizing the internal heat dissipation of the projector.
  • the utility model provides a projector, which is provided with a protective cover on the lens, which can prevent the lens from entering the ash, and can be spaced apart from the internal space of the projector, so that the lens can be disassembled and maintained, and has good performance. user experience.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Projection Apparatus (AREA)
  • Transforming Electric Information Into Light Information (AREA)
  • Cameras Adapted For Combination With Other Photographic Or Optical Apparatuses (AREA)
  • Lens Barrels (AREA)

Abstract

一种投影机，投影机包括具有进风面(11)和出风面(12)的壳体(1),位于进风面(11)和出风面(12)之间的主板(2)、散热器(7)、色轮组件和镜头模组，进风面(11)上设置有进风口，出风面(12)上设置有出风口(121)，进风口和出风口(121)之间形成用于气体流通的风道，镜头模组包括镜头(3)和设置于镜头(3)外周的防护罩(5)，防护罩(5)将镜头(3)与风道隔离。该投影机可以防止镜头进灰，且能够与投影机内部空间间隔开，便于镜头(3)的拆卸和维护，具有良好的用户体验。

Description

投影机 技术领域
本实用新型涉及光学领域，尤其是涉及一种工程投影机。
 背景技术
对于例如直投式、可更换镜头工程投影机，镜头处于机器前部大致中间位置，也正好处于整机进风口与出风口的中间位置，镜头入光面很容易被带进风道上的灰尘污染，导致镜头经常需要维护。
技术问题
另外，镜头支架上设有连接线，距离镜头很近，拆卸更换镜头时支架上的连接线有时候会挡住或线被夹住，妨碍镜头的顺利更换。
因此，实有必要提供一种新的投影机以解决上述问题。
 技术解决方案
本实用新型主要解决的技术问题是提供一种具有镜头防护罩的投影机，以解决现有技术中镜头容易进灰，难以维护，且拆卸不便的问题。
为解决上述技术问题，本实用新型采用的一个技术方案是：提供一种投影机，所述投影机包括具有进风面和出风面的壳体，位于所述壳体内的镜头模组，所述进风面上设置有进风口，所述出风面上设置有出风口，所述进风口和所述出风口之间形成用于气体流通的风道，所述镜头模组包括镜头和设置于镜头外周的防护罩，所述防护罩将所述镜头与所述风道隔离。
优选的，所述进风面与所述出风面相对设置，所述镜头模组位于所述进风面和所述出风面之间。
优选的，所述投影机还包括设置在所述进风面和所述出风面之间的主板、散热器、激光器和色轮组件。
优选的，所述散热器位于所述进风口与所述镜头模组之间，所述防护罩包括靠近所述散热器的第一表面、与所述第一表面相对设置的第二表面以及连接所述第一表面和所述第二表面的第三表面。
优选的，所述第一表面上设置有与所述壳体相连的第一固定部，所述第二表面上设置有与所述壳体相连的第二固定部。
优选的，所述出风口处设置有与所述出风口对应设置的风扇。
优选的，所述壳体包括连接所述进风面与所述出风面的镜头安装面，所述镜头安装面上设置有镜头安装孔。
优选的，所述镜头模组还包括与壳体相连的用于固定镜头和防护罩的镜头支架，所述镜头支架与镜头安装孔对应设置。
优选的，所述第三表面靠近镜头支架的一侧设置有卡槽，所述卡槽卡接固定在所述镜头支架上。
优选的，所述第三表面上设置有固定孔，所述固定孔设置在所述卡槽两侧，所述防护罩与所述镜头支架通过固定孔固定。
优选的，所述第三表面靠近壳体的一侧设置有镜头的让位部，所述防护罩通过所述让位部抵接在所述镜头的边缘。
优选的，所述投影机包括镜头连线，所述镜头连线通过镜头支架与所述镜头电连接，所述防护罩与所述壳体和所述壳体之间形成所述镜头的收容空间，所述镜头连线位于在该收容空间外。
 有益效果
本实用新型的有益效果是：区别于现有技术的情况，本实用新型提供一种投影机，在镜头上设置防护罩，可以防止镜头进灰，且能够与投影机内部空间间隔开，便于镜头的拆卸和维护，具有良好的用户体验。
 附图说明
图1是本实用新型投影机未安装镜头的部分组装结构示意图；
图2是本实用新型投影机省略部分壳体的部分组装结构示意图；
图3是本实用新型投影机的防护罩的结构示意图；
图4是本实用新型投影机内部组装示意图。
 本发明的最佳实施方式
应当理解，此处所描述的具体实施例仅仅用以解释本实用新型，并不用于限定本实用新型。
如图1和图2所示，本实用新型投影机包括具有收容空间的壳体1、收容在壳体1内的主板2、镜头模组、散热器7、激光器和色轮组件。
其中壳体1包括与主板2垂直的进风面11和出风面12，以及连接进风面11和出风面12的顶面13和底面。镜头模组、散热器7和色轮组件均位于进风面11和出风面12之间。主板2固定在壳体1的底面上。在本实施方式中，主板2为固定在壳体1底面上的独立的集成电路板，其上可设置多种不同功能的插口，具体在本实施方式中，主板2上设置有多个模块插口、电源控制插口和DMD插口。在可选择的其他实施方式中，主板2也可以与壳体1一体成型，集成在壳体1的底部。此外，主板2可以覆盖整个投影机的底部空间，也可以仅占据壳体内的部分空间，只要起到集成作用，即是可以实施的。
进风面11上设置有进风口，出风面12上设置有出风口121，进风面11的进风口与出风面12的出风口121相对应设置，形成用于气体流通的风道。进一步的，对应出风口121设置有风扇6，用于促进气体流动，加强投影机的内部散热。
镜头模组包括镜头3、用于固定镜头3的镜头支架4和防护罩5。进一步的，壳体1还包括连接进风面11和出风面12，及位于顶面12和底面之间的镜头安装面14。其中，镜头安装面14上设置有镜头安装孔141。镜头3通过该镜头安装孔141插入壳体1的内部。镜头3光线的入射方向垂直于风道内气体的流动方向。即镜头3位于投影机的受风面上。
镜头支架4与镜头安装孔141对应设置，形成镜头3的安装位。经过镜头支架4的镜头连线将镜头3与主板2电连接，投影机上的镜头连线均固定连接在镜头支架4上。
防护罩5设置在镜头3的外周，，用于将镜头与风道隔离开。如图3所示，防护罩5包括与进风面11相对设置的第一表面51、与出风面12相对设置的第二表面52以及连接第一表面51和第二表面52的第三表面53。其中，第一表面51靠近主板2的一侧设置有与主板2相连的第一固定部511，第二表面52靠近主板2的一侧设置有与主板2相连的第二固定部521。防护罩5与壳体1形成围绕镜头安装位的间隔，其间形成镜头3的收容空间，镜头连线被隔离在该收容空间外。这样，在拆卸镜头时可以方便镜头的更换，避免镜头连线被挡住或线被夹住从而影响产品的可靠性。而且，镜头拆卸更换时不会看到投影机的内部空间，保证产品的美观性。
第三表面53靠近镜头支架4，远离镜头安装面的一侧设置有卡槽531，该卡槽531卡接固定在镜头支架4上。对应的，镜头支架上设置与之相对应的卡扣或台阶，从而提高防护罩5与镜头支架4的固定可靠性。
进一步的，第三表面53上还设置有固定孔532，具体在本实施方式中，固定孔532共有两个，分别设置在所述卡槽531的两侧，用于支架4与防护罩的进一步固定，通过该固定孔532，固定支架4上可以设置与之相匹配的凸点、凸柱；或者通过该固定孔532，进行螺钉固定，均是可以实施的。
进一步的，第三表面53靠近镜头安装面的一侧设置有镜头的让位部533，防护罩5通过该让位部533抵接在镜头3的边缘。从而使得镜头3、防护罩5和镜头支架4形成一个一体的结构，起到整体上的防尘作用。
参照图4，色轮组件包括色轮和色轮驱动装置。激光器用于发出激光，在工作时会产生很大的热量，是本实用新型投影机的主要发热源，此外，投影机内还可以设置有用于调节成像的DMD驱动装置、与主板上的电源控制板插口电连接的电源控制板，同样会产生热量。对应的，散热器7热传导地设置在激光器的上层，具体在本实施方式中，激光器和散热器位于进风口与镜头模组之间。进风口进入的气流经散热器，对投影机进行散热，随后经过镜头模组后在风扇6的驱动下从出风口流出，实现了投影机的内部散热。
区别于现有技术的情况，本实用新型提供一种投影机，在镜头上设置防护罩，可以防止镜头进灰，且能够与投影机内部空间间隔开，便于镜头的拆卸和维护，具有良好的用户体验。
以上所述仅为本实用新型的实施例，并非因此限制本实用新型的专利范围，凡是利用本实用新型说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本实用新型的专利保护范围内。

Claims (10)

1.一种投影机，其特征在于，所述投影机包括具有进风面和出风面的壳体，位于所述壳体内的镜头模组，所述进风面上设置有进风口，所述出风面上设置有出风口，所述进风口和所述出风口之间形成用于气体流通的风道，所述镜头模组包括镜头和设置于镜头外周的防护罩，所述防护罩将所述镜头与所述风道隔离。
2.根据权利要求1所述的投影机，其特征在于，所述进风面与所述出风面相对设置，所述镜头模组位于所述进风面和所述出风面之间。
3. 根据权利要求2所述的投影机，其特征在于，所述投影机还包括设置在所述进风面和所述出风面之间的主板、散热器、激光器和色轮组件。
4.根据权利要求3所述的投影机，其特征在于，所述散热器位于所述进风口与所述镜头模组之间，所述防护罩包括靠近所述散热器的第一表面、与所述第一表面相对设置的第二表面以及连接所述第一表面和所述第二表面的第三表面，所述第一表面上设置有与所述壳体相连的第一固定部，所述第二表面上设置有与所述壳体相连的第二固定部。
5.根据权利要求1所述的投影机，其特征在于，所述出风口处设置有与所述出风口相对应的风扇。
6.根据权利要求1所述的投影机，其特征在于，所述壳体包括连接所述进风面与所述出风面的镜头安装面，所述镜头安装面上设置有镜头安装孔所述镜头模组还包括与所述壳体相连的用于固定镜头和所述防护罩的镜头支架，所述镜头支架与所述镜头安装孔对应设置。
7.根据权利要求6所述的投影机，其特征在于，所述第三表面靠近所述镜头支架的一侧设置有卡槽，所述卡槽卡接固定在所述镜头支架上。
8.根据权利要求7所述的投影机，其特征在于，所述第三表面上设置有固定孔，所述固定孔设置在所述卡槽的两侧，所述防护罩与所述镜头支架通过所述固定孔固定。
9.根据权利要求6所述的投影机，其特征在于，所述第三表面靠近所述镜头安装面的一侧设置有所述镜头的让位部，所述防护罩通过所述让位部抵接在所述镜头的边缘。
10.根据权利要求6所述的投影机，其特征在于，所述投影机包括镜头连线，所述镜头连线通过镜头支架与所述镜头电连接，所述防护罩与所述壳体之间形成所述镜头的收容空间，所述镜头连线位于在该收容空间外。
PCT/CN2017/094803 2017-05-11 2017-07-28 投影机 WO2018205421A1 (zh)

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Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6990357B2 (ja) * 2019-03-25 2022-01-12 カシオ計算機株式会社 電子装置、投影装置及び冷却制御方法
US11982929B2 (en) 2019-03-25 2024-05-14 Casio Computer Co., Ltd. Electronic unit including a fan, projector including a fan, and cooling control method for the electronic unit including the fan
CN211086888U (zh) * 2019-12-03 2020-07-24 深圳光峰科技股份有限公司 投影设备
CN214540347U (zh) * 2021-05-12 2021-10-29 中强光电股份有限公司 投影装置
USD1009968S1 (en) * 2023-07-03 2024-01-02 Xu SI Projector
USD1009128S1 (en) * 2023-07-03 2023-12-26 Xu SI Projector
USD1009967S1 (en) * 2023-07-03 2024-01-02 Xu SI Projector
USD1013020S1 (en) * 2023-07-03 2024-01-30 Xu SI Projector

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2831188Y (zh) * 2005-10-26 2006-10-25 陈艺通 防尘投影机
CN101008775A (zh) * 2006-01-24 2007-08-01 上海信诚至典网络技术有限公司 防尘单镜头投影机
CN201017162Y (zh) * 2007-02-25 2008-02-06 李洪斌 一种投影机的防尘散热装置
US20090141249A1 (en) * 2007-11-29 2009-06-04 Seiko Epson Corporation Projector
JP2009133988A (ja) * 2007-11-29 2009-06-18 Seiko Epson Corp プロジェクタ
CN101535891A (zh) * 2006-10-31 2009-09-16 三洋电机株式会社 投影仪

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001343708A (ja) * 2000-05-30 2001-12-14 Canon Inc 背面投射型ディスプレイ装置の冷却機構
JP4127047B2 (ja) * 2002-12-24 2008-07-30 セイコーエプソン株式会社 プロジェクタ用筐体及びこの筐体を備えたプロジェクタ
WO2006104302A1 (en) * 2005-03-30 2006-10-05 Lg Electronics Inc. Cooling system of thin projector and method for controlling the same
JP2011164138A (ja) * 2010-02-04 2011-08-25 Canon Inc 光学機器
JP2012189835A (ja) * 2011-03-11 2012-10-04 Canon Inc 投射型画像表示装置
JP2014062974A (ja) * 2012-09-20 2014-04-10 Casio Comput Co Ltd 光源装置、投影装置及び光源制御方法
JP2015184407A (ja) * 2014-03-24 2015-10-22 パナソニック株式会社 照明装置および映像表示装置
JP6350013B2 (ja) * 2014-06-23 2018-07-04 株式会社リコー 照明光源装置及び画像投影装置
JP6590248B2 (ja) * 2015-09-09 2019-10-16 株式会社リコー 画像投写装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2831188Y (zh) * 2005-10-26 2006-10-25 陈艺通 防尘投影机
CN101008775A (zh) * 2006-01-24 2007-08-01 上海信诚至典网络技术有限公司 防尘单镜头投影机
CN101535891A (zh) * 2006-10-31 2009-09-16 三洋电机株式会社 投影仪
CN201017162Y (zh) * 2007-02-25 2008-02-06 李洪斌 一种投影机的防尘散热装置
US20090141249A1 (en) * 2007-11-29 2009-06-04 Seiko Epson Corporation Projector
JP2009133988A (ja) * 2007-11-29 2009-06-18 Seiko Epson Corp プロジェクタ

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