JPH0449695B2 - - Google Patents
Info
- Publication number
- JPH0449695B2 JPH0449695B2 JP59225783A JP22578384A JPH0449695B2 JP H0449695 B2 JPH0449695 B2 JP H0449695B2 JP 59225783 A JP59225783 A JP 59225783A JP 22578384 A JP22578384 A JP 22578384A JP H0449695 B2 JPH0449695 B2 JP H0449695B2
- Authority
- JP
- Japan
- Prior art keywords
- screen
- board
- nonwoven fabric
- video screen
- video
- 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.)
- Expired - Lifetime
Links
- 239000004745 nonwoven fabric Substances 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 14
- 239000002657 fibrous material Substances 0.000 claims description 6
- 239000011491 glass wool Substances 0.000 description 8
- 239000002184 metal Substances 0.000 description 7
- 238000010521 absorption reaction Methods 0.000 description 4
- 229910052602 gypsum Inorganic materials 0.000 description 4
- 239000010440 gypsum Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Overhead Projectors And Projection Screens (AREA)
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明はプラネタリユーム等、曲面を有する映
像スクリーンに係るものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a video screen having a curved surface, such as a planetarium.
（従来の技術）
従来のプラネタリユーム用映像スクリーンは殆
んど金属製孔明板より構成されている。(Prior Art) Most conventional video screens for planetariums are constructed from metal perforated plates.
（発明が解決しようとする問題点）
従つて前記従来の映像スクリーンにおいては、
映像関係については、スクリーンに写し出される
星が直径12mm程度の孔より小さな場合、透孔より
抜けてしまい、投映される星の数が限られてしま
う。また投映される光も透孔より抜けてしまうた
めに映像画面が暗くなつてしまう。更に金属製孔
明板は端部に孔がなく、ジヨイント部分は孔のピ
ツチが異なるので画面が一体にみえないという難
点がある。(Problems to be solved by the invention) Therefore, in the conventional video screen,
Regarding images, if the stars projected on the screen are smaller than the 12mm diameter hole, they will pass through the hole, limiting the number of stars that can be projected. Furthermore, the projected light also passes through the through holes, making the image screen dark. Furthermore, the metal perforated plate has no holes at its ends, and the pitch of the holes at the joints is different, making it difficult to see the screen as one piece.
音響関係については、金属製孔明板を使用して
いるために高音域のみが吸音され、残響時間が短
かく、良質な音が望めない。また金属製孔明板の
孔径を大きくすると、投映される星の数が少なく
なるので、孔径を12mm以上にすることができず、
吸音効果もよくない。またスピーカー音を映像ス
クリーン面より出すので、吸音効果を考えると金
属製孔明板を使用する以外に考えられなかつた。 As for acoustics, since metal perforated plates are used, only high-frequency sounds are absorbed, resulting in short reverberation time and poor quality sound. In addition, if the hole diameter of the metal perforated plate is increased, the number of stars projected will decrease, so it is not possible to increase the hole diameter to 12 mm or more.
The sound absorption effect is also not good. Also, since the speaker sound is emitted from the video screen surface, considering the sound absorption effect, the only option was to use a metal perforated plate.
更に施工関係については、使用材料の重量が大
きく、運搬取付が困難で、下地の骨組を剛強にす
る必要があり、施工費が嵩むという欠点があつ
た。 Furthermore, in terms of construction, the materials used are heavy, making transport and installation difficult, and the underlying framework needs to be strong, which increases construction costs.
（問題点を解決するための手段）
本発明はこのような問題点を解決するために提
案されたものであつて、映像スクリーンの骨組を
構成する下地材上に、スクリーン下地ボードを相
隣る同ボード間に間隔を存するように目透し状に
貼着し、同下地ボードの表面に、スクリーン全面
に亘つて、表面に不繊布が層着された繊維状物質
よりなる板を取付けてなることを特徴とする映像
スクリーンに係るものである。(Means for Solving the Problems) The present invention has been proposed in order to solve these problems, and the present invention has been proposed in order to solve the above-mentioned problems. A board made of a fibrous material with a nonwoven fabric layered on the surface is attached to the surface of the base board, covering the entire surface of the screen, and is pasted in a transparent manner so that there is a gap between the boards. This relates to a video screen characterized by the following.
（作用）及び（発明の効果）
本発明に係る映像スクリーンは前記したよう
に、表面に不繊布が層着された繊維状物質よりな
る板がスクリーン全面に亘つて配設されているの
で、映像スクリーン面に透孔がなく、投映される
小さな星もスクリーン面に写し出され、多数の星
を投映することが可能となり、また照射される光
が透孔より吸収されなくなるので、映像面が明る
くなり、画像が鮮明となる。更に映像面の貼合せ
部分が目立たないので映像面が一体にみえ、自然
空間が再現できる。(Function) and (Effects of the Invention) As described above, the video screen according to the present invention has a plate made of a fibrous material with a nonwoven fabric layered on the surface, which is disposed over the entire surface of the screen. There are no holes in the screen surface, so even the small stars being projected are projected onto the screen surface, making it possible to project a large number of stars.In addition, the projected light is no longer absorbed by the holes, making the image surface brighter. , the image becomes clearer. Furthermore, since the bonded part of the image surface is not noticeable, the image surface appears as one piece, and natural space can be reproduced.
また本発明においては前記したようにスクリー
ン全面に亘つて配設される表面に不繊布が層着さ
れた板の素材をグラスウール等、適当な材料より
構成することによつて高音域の残響時間が適当に
長くなり、音質がよくなる。また表面に不繊布が
層着された繊維状物質よりなる板が取付けられる
前記スクリーン下地ボードが、映像スクリーンの
骨組を構成する下地材上に、相隣る下地ボード間
に間隔が存するように目透し状に貼着されている
ので、同下地ボードの取付間隔を調節することに
よつて、球面等の曲面を容易に構成できる。更に
前記スクリーン下地ボードが表面に不繊布を層着
した繊維物質よりなる板より構成されているの
で、前記下地ボードに馴染み易く、凹凸のない曲
面を構成しうるものである。 In addition, in the present invention, as mentioned above, the reverberation time in the high frequency range can be improved by making the board, which is disposed over the entire surface of the screen and whose surface is layered with nonwoven fabric, from a suitable material such as glass wool. It will be longer and the sound quality will be better. In addition, the screen base board to which a plate made of a fibrous material with a nonwoven fabric layered on the surface is attached is arranged so that there is a gap between adjacent base boards on the base material constituting the framework of the video screen. Since it is attached in a transparent manner, a curved surface such as a spherical surface can be easily formed by adjusting the mounting interval of the base board. Further, since the screen base board is composed of a plate made of a fibrous material with a nonwoven fabric layered on the surface, it easily conforms to the base board and can form a curved surface without irregularities.
なお、板の素材がグラスウール等の材料より構
成され、その表面に不繊布が層着された前記板
を、下地材に、スクリーン全面に亘つて配設し、
同板のグラスウール等の材料よりなる素材の厚さ
を調節することにより吸音率を自由に変えること
もできる。更に映像スクリーンの裏側にスピーカ
を取付けても不繊布を後貼りすることによつて、
他の映像スクリーン面と同一に仕上るので、映像
が変化しなくなる。 In addition, the board is made of a material such as glass wool, and a nonwoven fabric is layered on the surface of the board, and the board is disposed on the base material over the entire surface of the screen,
The sound absorption coefficient can also be freely changed by adjusting the thickness of the material of the same plate, such as glass wool. Furthermore, even if a speaker is installed on the back side of the video screen, by pasting the non-woven fabric,
Since the finish is the same as other video screen surfaces, the image will not change.
更に本発明によれば従来のように金属孔明板を
使用することなく、スクリーン下地に目透し状に
配設された軽量のボードの表面に、表面に不繊布
が層着された繊維状物質よりなる軽量の板が取付
けられて映像スクリーンが構成されており、この
ように素材が軽量であるため下地の骨組が軽量化
され、また映像スクリーン材料の運搬、取付等が
容易に行なわれ、材料費とともに施工費が大幅に
節減される。 Furthermore, according to the present invention, instead of using a metal perforated plate as in the past, a fibrous material with a nonwoven fabric layered on the surface of a lightweight board arranged in a mesh pattern on a screen base is used. The video screen is constructed by attaching lightweight boards made of materials such as Along with the cost, construction costs are also significantly reduced.
（実施例） 以下本発明を図示の実施例について説明する。(Example) The present invention will be described below with reference to the illustrated embodiments.
１は軽量鉄骨より構成された下地材で、同下地
材１によつて映像スクリーンの骨組を組立てる。 Reference numeral 1 denotes a base material composed of a lightweight steel frame, and the frame of the video screen is assembled using the base material 1.
次いで前記下地材１上に石膏ボード２または有
孔ボードをビスを介して目透し状に貼着する。図
中３は目透し部である。 Next, a gypsum board 2 or a perforated board is pasted onto the base material 1 via screws in a transparent manner. 3 in the figure is a transparent part.
次いで表面に不繊布４が層着されたグラスウー
ル板５を前記石膏ボード２または有孔ボードの表
面にスクリーン全面に亘つて装着して映像スクリ
ーンを構成する。なお不繊布４貼りグラスウール
板５は突付け貼りとして、突付け部分は目違いの
ないように馴染ませるものである。 Next, a glass wool board 5 having a nonwoven fabric 4 layered on its surface is attached to the surface of the gypsum board 2 or perforated board over the entire surface of the screen to form a video screen. Note that the glass wool board 5 to which the nonwoven fabric 4 is attached is pasted in a butted manner, and the butted portions are blended together so that there is no misalignment.
図示の実施例においては前記したように、石膏
ボード２または有孔ボードの表面に、スクリーン
面全面に亘つて、表面に不繊布４が層着されたグ
ラスウール板５が装着されているので、映像スク
リーン面に透孔がなく、投映される小さな星も写
し出され、また照射される光が透孔より吸収され
ることがなくなり、映像面が明るくなり、画像が
鮮明となる。また映像面の貼合せ部分が目立たな
いので、映像面が一体にみえ、自然空間が再現で
きる。 In the illustrated embodiment, as described above, the glass wool board 5 with the nonwoven fabric 4 layered on its surface is attached to the surface of the gypsum board 2 or the perforated board over the entire screen surface. There are no holes in the screen surface, so the small stars that are projected are also visible, and the irradiated light is not absorbed through the holes, making the screen brighter and the image clearer. In addition, since the bonded part of the image surface is not noticeable, the image surface appears as one, and natural space can be reproduced.
また前記グラスウール板５の素材の特性を活用
することにより高音域が長くなり、音質がよくな
り、更に前記石膏ボード２または有孔ボードの貼
付間隔を調節することにより、吸音率を調整する
ことができ、更にまた映像スクリーンの裏側にス
ピーカを取付けても、不繊布４を後貼りすること
によつて他の映像スクリーンと同一に仕上げるこ
とができ、映像が変化しなくなる。 In addition, by utilizing the characteristics of the material of the glass wool board 5, the high frequency range becomes longer and the sound quality improves, and the sound absorption coefficient can also be adjusted by adjusting the spacing between the plasterboards 2 or the perforated boards. Furthermore, even if a speaker is attached to the back side of the video screen, by pasting the nonwoven fabric 4 on, it can be finished to be the same as other video screens, and the video will not change.
また前記不繊布４は着色が自由にできるので、
映写される用途、例えばプラネタリユーム、一般
映像により着色を選択できる。更に現場での塗装
作業がなくなり、工程の短縮が可能であり、更に
また映像画面が金属板の場合に比して非常に柔か
くみえる。 Moreover, since the nonwoven fabric 4 can be colored freely,
Coloring can be selected depending on the purpose of projection, for example, planetarium or general images. Furthermore, there is no need for on-site painting work, making it possible to shorten the process, and furthermore, the video screen appears to be much softer than when it is made of a metal plate.
また使用素材が軽量であるので、運搬、取付け
が容易になり、下地の骨組が軽量化される。 Furthermore, since the materials used are lightweight, transportation and installation are easy, and the underlying framework is lightweight.
以下本発明を実施例について説明したが、本発
明は勿論このような実施例にだけ局限されるもの
ではなく、本発明の精神を逸脱しない範囲内で
種々の設計の改変を施しうるものである。 The present invention has been described below with reference to embodiments, but the present invention is of course not limited to these embodiments, and can be modified in various ways without departing from the spirit of the invention. .
第１図は本発明に係る映像スクリーンの一実施
例を示す横断平面図、第２図はその縦断側面図、
第３図は正面図である。
１……下地材、２……石膏ボード、３……目透
し部、４……不繊布、５……グラスウール板。
FIG. 1 is a cross-sectional plan view showing an embodiment of the video screen according to the present invention, FIG. 2 is a vertical cross-sectional side view thereof,
FIG. 3 is a front view. 1... Base material, 2... Gypsum board, 3... Opening section, 4... Nonwoven fabric, 5... Glass wool board.
Claims (1)
に、スクリーン下地ボードを相隣る同ボード間に
間隔を存するように目透し状に貼着し、同下地ボ
ードの表面に、スクリーン全面に亘つて、表面に
不繊布が層着された繊維状物質よりなる板を取付
けてなることを特徴とする映像スクリーン。1. A screen base board is pasted on the base material that makes up the frame of the video screen in a mesh pattern so that there is a gap between adjacent boards, and the surface of the base board is covered over the entire surface of the screen. , a video screen comprising a plate made of a fibrous material with a nonwoven fabric layered on its surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59225783A JPS61105530A (en) | 1984-10-29 | 1984-10-29 | Video screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59225783A JPS61105530A (en) | 1984-10-29 | 1984-10-29 | Video screen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61105530A JPS61105530A (en) | 1986-05-23 |
| JPH0449695B2 true JPH0449695B2 (en) | 1992-08-12 |
Family
ID=16834711
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59225783A Granted JPS61105530A (en) | 1984-10-29 | 1984-10-29 | Video screen |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61105530A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105453545B (en) * | 2013-06-06 | 2019-04-09 | 瑞尔D股份有限公司 | System and method for vibrating screen to reduce speckle |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5168229A (en) * | 1974-12-10 | 1976-06-12 | Ryosaku Takada | |
| JPS5349398U (en) * | 1976-09-30 | 1978-04-26 | ||
| JPS5545025A (en) * | 1978-09-27 | 1980-03-29 | Sumitomo Electric Ind Ltd | Projecting screen |
-
1984
- 1984-10-29 JP JP59225783A patent/JPS61105530A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5168229A (en) * | 1974-12-10 | 1976-06-12 | Ryosaku Takada | |
| JPS5349398U (en) * | 1976-09-30 | 1978-04-26 | ||
| JPS5545025A (en) * | 1978-09-27 | 1980-03-29 | Sumitomo Electric Ind Ltd | Projecting screen |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61105530A (en) | 1986-05-23 |
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