WO2011050489A1 - 投影幕 - Google Patents
投影幕 Download PDFInfo
- Publication number
- WO2011050489A1 WO2011050489A1 PCT/CN2009/001191 CN2009001191W WO2011050489A1 WO 2011050489 A1 WO2011050489 A1 WO 2011050489A1 CN 2009001191 W CN2009001191 W CN 2009001191W WO 2011050489 A1 WO2011050489 A1 WO 2011050489A1
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- WO
- WIPO (PCT)
- Prior art keywords
- projection screen
- flexible frame
- curtain
- support
- present
- Prior art date
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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
- G03B21/54—Accessories
- G03B21/56—Projection screens
Definitions
- the invention relates to a projection screen, in particular to a foldable projection screen.
- the projection screen is one of the most commonly used products in projector peripherals. If the projection screen is properly matched with the projector, you can get a good projection effect.
- Conventional projection screens are usually fixed to the wall to facilitate projection of the image to be displayed by the projector.
- Conventional projection screens are typically designed to be crimpable so that the projection screen can be curled into a cylindrical shape when not in use.
- the projection screen is curled into a cylindrical shape to a certain extent to reduce the space occupied by the projection screen, the space occupied by the length or width direction does not change, so that a large space is required for carrying or storing. Therefore, the conventional projection screen has the disadvantage of poor portability.
- a projection screen includes a curtain and a flexible frame.
- the flexible frame surrounds the curtain and connects to the edge of the curtain.
- the flexible frame is adapted for folding and the curtain is adapted to fold as the flexible frame is folded.
- the upper projection screen further includes a suspension structure, and the curtain is disposed adjacent to the flexible frame or disposed on the flexible frame.
- the suspension structure described above includes a through hole disposed in the curtain.
- the suspension structure comprises two suction cups disposed on opposite sides of the curtain.
- the projection screen further includes a support structure coupled to the flexible frame and configured to support the flexible frame.
- the support structure includes a base and a fixing member.
- the fixing member is connected to the base, and the flexible frame is fixed to the fixing member.
- the fixing member is a jig.
- the fixing member is pivotally connected to the base.
- the support structure extends from the flexible frame. In an embodiment of the invention, the support structure includes two support legs.
- the support structure includes a support base and a connecting portion, and the connecting portion is coupled to the support base and the flexible frame.
- the support structure includes a support frame extending from opposite sides of the flexible frame.
- the color of the curtain is white.
- the cloth curtain is a flat cloth.
- the cloth curtain has light scattering properties.
- the projection screen of the present invention has significant advantages and advantageous effects over the prior art.
- the projection screen of the present invention has at least the following advantages and advantageous effects:
- the projection screen of the present invention comprises a flexible frame which is foldable, and the curtain can be folded as the flexible frame is folded. Therefore, when carrying and/or storing, the projection screen can be folded to reduce the length of the projection screen in the lateral and/or longitudinal direction, thereby making the projection screen easy to carry and/or store.
- FIG. 1 is a front elevational view of a projection screen according to a first embodiment of the present invention.
- Fig. 2 is a schematic view showing the folding process of the projection screen shown in Fig. 1.
- Figure 3 is a schematic view of the projection screen shown in Figure 1 after folding.
- FIG. 4 is a schematic view of a projection screen according to a second embodiment of the present invention.
- Figure 5 is a schematic view of a projection screen according to a third embodiment of the present invention.
- Figure 6 is a schematic view of a projection screen according to a fourth embodiment of the present invention.
- Figure 7 is a schematic view of a projection screen according to a fifth embodiment of the present invention.
- Figure 8 is a schematic view of a projection screen of a sixth embodiment of the present invention.
- FIG 9 is a schematic view of a projection screen according to a seventh embodiment of the present invention.
- the projection screen 10 of the embodiment includes a curtain 12 and a flexible frame 14 , wherein the flexible frame 14 surrounds the curtain 12 and is connected to the edge of the curtain 12 .
- the color of the curtain 12 can be white.
- the curtain 12 can be composed of a flat cloth and it can have light scattering properties.
- the flexible frame 14 includes, for example, a flexible metal frame 142 and is used for coating and fixing
- the cover member 144 of the flexible metal frame 142, and the curtain 12 is fixed to the cover member 144, for example.
- the material of the covering member 144 is, for example, a cloth, but is not limited thereto. Foot part
- Fig. 2 is a schematic view showing the folding process of the projection screen shown in Fig. 1.
- Figure 3 is a schematic view of the projection screen of Figure 1 after folding.
- the flexible frame 14 described above is foldable, and the curtain 12 is folded as the flexible frame 14 is folded. Therefore, when carrying and/or storing, the projection screen 10 can be folded to reduce the length of the projection screen 10 in the lateral and/or longitudinal direction, so that the projection screen 10 can be easily carried and/or stored.
- the flexible metal frame 142 may be made of a resilient material such as carbon fiber, soft steel wire, etc., so that the folded flexible metal frame 142 can be removed after the external force is removed. Restore to the original shape (as shown in Figure 1). It should be noted that the schematic diagrams of the folding manner illustrated in FIG. 2 and FIG. 3 are for example only, and the present invention does not limit the folding manner of the projection screen 10.
- the projection screen 20 of the present embodiment is similar to the projection screen 10 of the first embodiment, and includes a curtain 22 and a flexible frame 24.
- the projection screen 20 also includes a suspension structure 26 to facilitate hanging the projection screen 20.
- the suspension structure 26 may be a through hole provided at a position near the upper portion of the curtain 22 near the flexible frame 24.
- the position where the suspension structure 26 is disposed in the embodiment of the present invention is not limited to the curtain 22, and the suspension structure 26 may also be disposed on the flexible frame 24.
- the suspension structure 26 is not limited to the through hole.
- the suspension structure 36 of the projection screen 30 may be formed by two suction cups disposed at opposite sides of the curtain 32 adjacent to the flexible frame 34.
- the projection screen 30 can be fixed to other objects (such as a wall, a board, etc.) by a suction cup.
- FIG. 6 is a schematic diagram of a projection screen according to a fourth embodiment of the present invention. Please refer to Figure 6 and Figure 4, this is
- the projection screen 40 of the embodiment is similar to the projection screen 10 of the first embodiment, and includes a curtain 42 and a flexible frame 44. However, the projection screen 40 also includes a support structure 48 that is coupled to the flexible frame 44 for supporting the flexible frame 44 to facilitate use of the projection screen 40.
- the support structure 48 includes, for example, a base 482 and a fixing member 484, wherein the fixing member 484 is coupled to the base 482, and the flexible frame 44 is fixed to the fixing member 484.
- the fixture 484 can be a clamp and the fixture 484 can be pivotally coupled to the base 482.
- the fixture 484 can be pivotally coupled to the base 482 via the pivot 486.
- FIG. 7 is a schematic view of a projection screen according to a fifth embodiment of the present invention.
- the projection screen 50 of the present embodiment is similar to the projection screen 40 of the fourth embodiment, and includes a curtain 52 , a flexible frame 54 and a supporting structure 58 .
- Structure 58 extends from flexible frame 54.
- the support structure 58 includes two support legs 582 that form a specific angle between the support legs 582 to support the curtain 52 and the flexible frame 54.
- the support structure 58 extending from the flexible casing 54 may be overlapped with the edge of the flexible casing 54, and then folded. Thus, it is advantageous to reduce the volume of the projection screen 50 after folding.
- Figure 8 is a schematic view of a projection screen of a sixth embodiment of the present invention.
- the projection screen 60 of the embodiment is similar to the projection screen 50 of the fifth embodiment, and includes a curtain 62, a flexible frame 64 and a supporting structure 68. The difference lies in the support of the projection screen 60.
- Structure 68 includes a support base 682 and a connection portion 684. The connecting portion 684 is connected between the supporting base 682 and the flexible frame 64.
- FIG. 9 is a schematic view of a projection screen according to a seventh embodiment of the present invention.
- the projection screen 70 of the embodiment is similar to the projection screen 50 of the fifth embodiment, and includes a curtain 72, a flexible frame 74 and a supporting structure 78. The difference lies in the support of the projection screen 70.
- Structure 78 is a support frame that extends from opposite side edges 742 of flexible frame 74.
- the projection screen of the present invention includes a flexible frame that is foldable, and the curtain can be folded as the flexible frame is folded. Therefore, when carrying and/or storing, the projection screen can be folded to reduce the length of the projection screen in the lateral and/or longitudinal direction, so that the projection screen can be easily carried and/or stored.
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Overhead Projectors And Projection Screens (AREA)
Description
投影幕 技术领域
本发明涉及一种投影幕,特别是涉及一种可折叠的投影幕。 背景技术
投影幕是投影机周边设备中最常使用的产品之一, 若投影幕与投影机 搭配得当, 则可以得到优质的投影效果。
现有习知的投影幕, 通常是固定在墙壁上, 以利于投影机投射欲显示 的影像。 现有习知的投影幕通常设计成可卷曲的结构, 以便于在不使用时, 可将投影幕卷曲成圓柱状。 然而, 尽管将投影幕卷曲成圓柱状可一定程度 缩小投影幕所占用的空间, 但其在长度或宽度方向所占用的空间并未变化, 因此在携带亦或储藏时仍需要较大的空间, 所以现有习知的投影幕具有可 携带性不佳的缺点。
此外, 由于近来投影机朝向轻薄短小的趋势发展, 使得投影机在携带 上更为容易, 但由于现有习知的投影幕的可携带性不佳, 故有必要提供一 种更方便携带及 /或储藏的投影幕。 发明内容
本发明的目的在于, 克服现有的投影幕存在的缺陷, 而提供一种可折 叠的投影幕, 所要解决的技术问题是使其可方便携带及 /或储藏。
本发明的目的及解决其技术问题是采用以下技术方案来实现的。 依据 本发明提出的一种投影幕, 其包括布幕及可挠性框体。 可挠性框体环绕布 幕, 且连接布幕边缘。 其中可挠性框体适于折叠, 而布幕适于随着可挠性 框体的折叠而折叠。 在本发明的一实施例 ^中, 上 的投影幕还包括悬挂结构, 设置 布幕 的靠近可挠性框体处或设置在可挠性框体。
在本发明的一实施例中, 上述的悬挂结构包括通孔, 其设置在布幕。 在本发明的一实施例中, 上述的悬挂结构包括二吸盘, 其设置在布幕 相对的两侧。
在本发明的一实施例中, 上述的投影幕还包括支撑结构, 其连接可挠 性框体, 且用于支撑可挠性框体。
在本发明的一实施例中, 上述的支撑结构包括底座以及固定件。 固定 件连接底座, 且可挠性框体固定于固定件。
在本发明的一实施例中, 上述的固定件为夹具。
在本发明的一实施例中, 上述的固定件枢接于底座。
在本发明的一实施例中, 上述的支撑结构从可挠性框体延伸而出。 在本发明的一实施例中, 上述的支撑结构包括二支撑脚。
在本发明的一实施例中, 上述的支撑结构包括支撑座以及连接部, 连 接部连接于支撑座与可挠性框体。
在本发明的一实施例中, 上述的支撑结构包括从可挠性框体的相对两 侧边延伸而出的支撑框。
在本发明的一实施例中, 上述的布幕的颜色为白色。
在本发明的一实施例中, 上述的布幕为平光布。
在本发明的一实施例中, 上述的布幕具有光散射性。
本发明与现有技术相比具有明显的优点和有益效果。 借由上述技术方 案, 本发明投影幕至少具有下列优点及有益效果: 本发明的投影幕包括可 挠性框体, 其可折叠, 而布幕可随着可挠性框体的折叠而折叠。 因此, 在 携带及 /或储藏时, 投影幕可被折叠, 以缩小投影幕横向及 /或纵向的长度, 从而使投影幕可方便携带及 /或储藏。
上述说明仅是本发明技术方案的概述, 为了能够更清楚了解本发明的 技术手段, 而可依照说明书的内容予以实施, 并且为了让本发明的上述和 其他目的、 特征和优点能够更明显易懂, 以下特举较佳实施例, 并配合附 图,详细说明如下。 附图的简要说明
图 1为本发明第一实施例的投影幕的前视示意图。
图 2为图 1所示投影幕折叠过程中的示意图。
图 3为图 1所示投影幕折叠后的示意图。
图 4为本发明第二实施例的投影幕的示意图。
图 5为本发明第三实施例的投影幕的示意图。
图 6为本发明第四实施例的投影幕的示意图。
图 7为本发明第五实施例的投影幕的示意图。
图 8为本发明第六实施例的投影幕的示意图。
图 9为本发明第七实施例的投影幕的示意图。
10、 20、 30、 40、 50、 60、 70: 投影幕
12、 22、 32、 42、 52、 62、 72: 布幕
14、 24、 34、 44、 54、 64、 74: 可挠性框体
142: 可挠性金属架 144: 包覆件
26、 36: 悬挂结构 48、 58、 68、 78: 支撑结构
582
684
底枢侧支
座撑轴边
座
实现发明的最佳方式
为更进一步阐述本发明为达成预定发明目的所采取的技术手段及功 效,以下结合附图及较佳实施例, 对依据本发明提出的投影幕其具体实施方 式、 结构、 特征及其功效进行详细说明。
图 1为本发明第一实施例的投影幕的示意图。请参照图 1 , 本实施例的 投影幕 10包括布幕 12及可挠性框体 14 , 其中可挠性框体 14环绕布幕 12 且连接于布幕 12边缘。
布幕 12的颜色可为白色。 布幕 12可由平光布构成, 并且其可具有光 散射性。 此外, 可挠性框体 14例如包括可挠性金属架 142以及用于包覆可 固
挠性金属架 142的包覆件 144 , 而布幕 12例如接撑定是固接于包覆件 144。 包覆 件 144的材料例如为布, 但不以此为限。 脚件部
图 2为图 1所示投影幕折叠过程中的示意图。 图 3为图 1所示投影幕 折叠后的示意图。 请参见图 2与图 3, 上述的可挠性框体 14可折叠, 而布 幕 12可随着可挠性框体 14的折叠而折叠。 因此, 在携带及 /或储藏时, 投 影幕 10可被折叠, 以缩小投影幕 10横向及 /或纵向的长度, 从而使投影幕 1 0可方便携带及 /或储藏。 此外, 在较佳实施例中, 可挠性金属架 142可选 用具有弹性的材料, 如碳纤维、 软性钢线……等, 以使已折叠的可挠性金 属架 142在外力移除后能恢复原状(如图 1所示的形状)。 值得注意的是, 图 2与图 3所绘示的折叠方式的示意图仅为举例之用, 本发明并不限定投 影幕 10的折叠方式。
图 4为本发明第二实施例的投影幕的示意图。请参照图 4与图 1, 本实 施例的投影幕 20与第一实施例的投影幕 1 0相似, 包括布幕 22及可挠性框 体 24。 然而, 投影幕 20还包括悬挂结构 26 , 以方便悬挂投影幕 20。 详细 来说, 悬挂结构 26可为通孔, 其设置在布幕 22的上部靠近可挠性框体 24 的位置。
需要指出的是, 本发明实施例中的悬挂结构 26设置的位置并不限于布 幕 22 , 悬挂结构 26还可设置在可挠性框体 24上。 而且, 悬挂结构 26亦不 限于通孔。 举例来说, 请参照图 5 , 投影幕 30的悬挂结构 36可由二吸盘构 成, 此二吸盘设置在布幕 32相对的两侧靠近可挠性框体 34的位置。 换言 之, 投影幕 30可藉由吸盘而固定于其他物体(如墙壁、 板体等)上。
图 6为本发明第四实施例的投影幕的示意图。请参照图 6与图 4 , 本实
施例的投影幕 40与第一实施例的投影幕 10相似, 包括布幕 42及可挠性框 体 44。 然而, 投影幕 40还包括支撑结构 48 , 其与可挠性框体 44相连接, 用于支撑可挠性框体 44 , 以便于投影幕 40的使用。
上述的支撑结构 48例如包括底座 482及固定件 484 ,其中, 固定件 484 与底座 482相连接, 而可挠性框体 44固定于固定件 484。 更详细地, 固定 件 484可为夹具, 固定件 484可与底座 482相枢接。 具体而言, 固定件 484 可透过枢轴 486而枢接于底座 482。藉由固定件 484与底座 482相枢接,使 得可挠性框体 44及布幕 42的角度可依需求调整, 从而方便配合投影机投 影的角度以及使用者观看影像。
图 7为本发明第五实施例的投影幕的示意图。请参照图 7与图 6 , 本实 施例的投影幕 50与第四实施例的投影幕 40相似, 包括布幕 52、 可挠性框 体 54及支撑结构 58, 差别处在于投影幕 50的支撑结构 58从可挠性框体 54延伸而出。 详细来说, 支撑结构 58包括二支撑脚 582, 支撑脚 582之间 形成特定的角度, 从而将布幕 52与可挠性框体 54支撑起来。 此外, 当欲 折叠收藏投影幕 50时, 可先使从可挠性框体 54延伸而出的支撑结构 58与 可挠性框体 54的边缘重叠, 之后再进行折叠的动作。 如此, 可有利于缩小 投影幕 50折叠后的体积。
图 8为本发明第六实施例的投影幕的示意图。请参照图 8与图 7, 本实 施例的投影幕 60与第五实施例的投影幕 50相似, 包括布幕 62、 可挠性框 体 64及支撑结构 68 , 差别处在于投影幕 60的支撑结构 68包括支撑座 682 与连接部 684。 其中, 连接部 684连接于支撑座 682与可挠性框体 64之间。
图 9为本发明第七实施例的投影幕的示意图。请参照图 9与图 7 , 本实 施例的投影幕 70与第五实施例的投影幕 50相似, 包括布幕 72、 可挠性框 体 74及支撑结构 78 , 差别处在于投影幕 70的支撑结构 78为一支撑框, 其 从可挠性框体 74的相对两侧边 742延伸而出。
综上所述, 在本发明的投影幕包括可挠性框体, 其可折叠, 而布幕可 随着可挠性框体的折叠而折叠。 因此, 在携带及 /或储藏时, 投影幕可被折 叠, 以缩小投影幕横向及 /或纵向的长度, 从而使投影幕可方便携带及 /或 储藏。
以上所述, 仅是本发明的较佳实施例而已, 并非对本发明作任何形式 上的限制, 虽然本发明已以较佳实施例揭露如上, 然而并非用以限定本发 明,任何熟悉本专业的技术人员, 在不脱离本发明技术方案范围内,当可利 用上述揭示的技术内容作出些许更动或修饰为等同变化的等效实施例,但 凡是未脱离本发明技术方案内容, 依据本发明的技术实质对以上实施例所 作的任何简单修改、 等同变化与修饰,均仍属于本发明技术方案的范围内。
Claims
1、 一种投影幕, 其特征在于其包括:
一布幕; 以及
一可挠性框体, 环绕该布幕, 且连接该布幕边缘, 其中该可挠性框体 适于折叠, 而该布幕适于随着该可挠性框体的折叠而折叠。
2、 根据权利要求 1所述的投影幕, 其特征在于其还包括一悬挂结构, 设置在该布幕的靠近该可挠性框体处或设置在该可挠性框体。
3、 根据权利要求 2所述的投影幕, 其特征在于其中所述的悬挂结构包 括一通孔, 设置在该布幕。
4、 根据权利要求 2所述的投影幕, 其特征在于其中所述的悬挂结构包 括二吸盘, 设置在该布幕相对的两侧。
5、 根据权利要求 1所述的投影幕, 其特征在于其还包括一支撑结构, 连接该可挠性框体, 且用于支撑该可挠性框体。
6、 根据权利要求 5所述的投影幕, 其特征在于其中所述的支撑结构包 括:
一底座; 以及
一固定件, 连接该底座, 且该可挠性框体固定于该固定件。
7、 根据权利要求 6所述的投影幕-, 其特征在于其中所述的固定件为一 夹具。
8、 根据权利要求 6所述的投影幕, 其特征在于其中所述的固定件枢接 于该底座。
9、 根据权利要求 5所述的投影幕, 其特征在于其中所述的支撑结构从 该可挠性框体延伸而出。
10、 根据权利要求 9 所述的投影幕, 其特征在于其中所述的支撑结构 包括二支撑脚。
1 1、 根据权利要求 9 所述的投影幕, 其特征在于其中所述的支撑结构 包括:
一支撑座; 以及
一连接部, 连接于该支撑座与该可挠性框体。
12、 根据权利要求 9 所述的投影幕, 其特征在于其中所述的支撑结构 包括从该可挠性框体的相对两侧边延伸而出的一支撑框。
1 3、 根据权利要求 1 所述的投影幕, 其特征在于其中所述的布幕的颜 色为白色。
14、 根据权利要求 1 所述的投影幕, 其特征在于其中所述的布幕为平 光布。 15, 根据权利要求 1 所述的投影幕, 其特征在于其中所述的布幕具有 光散射性。
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PCT/CN2009/001191 WO2011050489A1 (zh) | 2009-10-26 | 2009-10-26 | 投影幕 |
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PCT/CN2009/001191 WO2011050489A1 (zh) | 2009-10-26 | 2009-10-26 | 投影幕 |
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US4323301A (en) * | 1980-05-14 | 1982-04-06 | Donald Spector | Collapsible rear/front projection screen assembly |
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CN2809681Y (zh) * | 2005-03-21 | 2006-08-23 | 梁坚平 | 便携式高亮度投影银幕 |
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US20070153375A1 (en) * | 2005-09-30 | 2007-07-05 | Infocus Corporation | Reconfigurable projection-screen system |
TWM366690U (en) * | 2009-04-01 | 2009-10-11 | Bright Supply Corp | High gain and wrinkle-free screen |
CN201402363Y (zh) * | 2009-04-02 | 2010-02-10 | 宏炬德企业股份有限公司 | 高增益无皱投影幕 |
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Publication number | Priority date | Publication date | Assignee | Title |
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DE2307880A1 (de) * | 1972-11-03 | 1974-05-09 | Gianfranco Passoni | Rahmen fuer einen bildschirm |
US4323301A (en) * | 1980-05-14 | 1982-04-06 | Donald Spector | Collapsible rear/front projection screen assembly |
US5127722A (en) * | 1989-06-16 | 1992-07-07 | Tatsuro Nishitani | Projection screen device |
US20070086088A1 (en) * | 2003-11-29 | 2007-04-19 | Lastolite Limited | Projection screens |
CN2809681Y (zh) * | 2005-03-21 | 2006-08-23 | 梁坚平 | 便携式高亮度投影银幕 |
US20070153375A1 (en) * | 2005-09-30 | 2007-07-05 | Infocus Corporation | Reconfigurable projection-screen system |
TWM366690U (en) * | 2009-04-01 | 2009-10-11 | Bright Supply Corp | High gain and wrinkle-free screen |
CN201402363Y (zh) * | 2009-04-02 | 2010-02-10 | 宏炬德企业股份有限公司 | 高增益无皱投影幕 |
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