JPH03220542A - Transmission type screen - Google Patents
Transmission type screenInfo
- Publication number
- JPH03220542A JPH03220542A JP2016375A JP1637590A JPH03220542A JP H03220542 A JPH03220542 A JP H03220542A JP 2016375 A JP2016375 A JP 2016375A JP 1637590 A JP1637590 A JP 1637590A JP H03220542 A JPH03220542 A JP H03220542A
- Authority
- JP
- Japan
- Prior art keywords
- screen
- light
- image
- lenticular
- fresnel lens
- 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.)
- Pending
Links
- 230000005540 biological transmission Effects 0.000 title claims description 15
- 150000001875 compounds Chemical class 0.000 claims abstract description 12
- 239000010409 thin film Substances 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 abstract description 12
- 239000004925 Acrylic resin Substances 0.000 abstract description 6
- 229920000178 Acrylic resin Polymers 0.000 abstract description 6
- 239000000843 powder Substances 0.000 abstract description 6
- 239000011521 glass Substances 0.000 abstract description 4
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 239000011347 resin Substances 0.000 description 8
- 229920005989 resin Polymers 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 238000010521 absorption reaction Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 239000010408 film Substances 0.000 description 6
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 6
- 239000004926 polymethyl methacrylate Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000009792 diffusion process Methods 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- 229910052731 fluorine Inorganic materials 0.000 description 2
- 239000011737 fluorine Substances 0.000 description 2
- 150000002222 fluorine compounds Chemical class 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Landscapes
- Overhead Projectors And Projection Screens (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明はビデオプロジェクタやスライドプロジェクタな
どに使用する透過式スクリーンに関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a transmissive screen for use in video projectors, slide projectors, and the like.
第４図はこの種の透過式スクリーンをプロジェクタに組
み込んだ基本配置を示す構成図である。FIG. 4 is a block diagram showing the basic arrangement of this type of transmissive screen incorporated into a projector.
１は例えばビデオプロジェクタなどの投射機、２は透過
式スクリーン、２ａはスクリーン材、３は観測者、４は
スクリーン材２の背面に形成されたフレネルレンズ、５
はスクリーン材２の表面に形成されたレンチキュラー面
である。1 is a projection device such as a video projector, 2 is a transmission screen, 2a is a screen material, 3 is an observer, 4 is a Fresnel lens formed on the back of the screen material 2, 5
is a lenticular surface formed on the surface of the screen material 2.
投射機１からの投射光は透過式スクリーン２に入射し、
フレネルレンズ４でスクリーン材２にほぼ垂直に進むよ
うに屈折され、ガラス粉末などの光拡散物質を混入した
スクリーン材２ａで適度に拡散を受け、レンチキュラー
面５で更に左右（水平）方向に光拡散され、観測者３に
到達する。The projected light from the projector 1 enters the transmission screen 2,
The Fresnel lens 4 refracts the light so that it travels almost perpendicularly to the screen material 2, the screen material 2a mixed with a light diffusing substance such as glass powder receives moderate diffusion, and the lenticular surface 5 further diffuses the light in the left and right (horizontal) direction. and reaches observer 3.
従来の透過式スクリーンのスクリーン材２ａは。The screen material 2a of the conventional transparent screen is as follows.
ビニル樹脂シートやアクリル（ＰＭＭＡ）樹脂板に光拡
散剤を塗布したり混入することにより形成している。ま
た、従来の、例えば、ビデオプロジェクタ用透過式スク
リーンは、背面にフレネルレンズを形成し、表面にレン
チキュラーを形成した１枚構成の、光拡散剤を混入した
ＰＭＭＡ樹脂板製透過式スクリーンと、更に透明のアク
リル樹脂板製のフレネルレンズとその前面側に接して配
置する特殊なレンチキュラー板とを組み合わせて成る２
枚構成の透過式スクリーンが知られている。It is formed by applying or mixing a light diffusing agent to a vinyl resin sheet or an acrylic (PMMA) resin plate. Conventional transmissive screens for video projectors, for example, include a single-sheet transmissive screen made of a PMMA resin plate mixed with a light diffusing agent, in which a Fresnel lens is formed on the back surface and a lenticule is formed on the surface. It consists of a combination of a Fresnel lens made of a transparent acrylic resin plate and a special lenticular plate placed in contact with the front side of the Fresnel lens.
A transmissive screen having a structure of two sheets is known.
上記のように構成された従来の透過式スクリーンには次
のような問題がある。The conventional transmissive screen configured as described above has the following problems.
（１）投射器からの投射光や外来光がスクリーン表面で
反射される。特に複数枚構成の透過式スクリーンでは、
外来光を受けたとき各表面での反射光が合わさり、スク
リーンを白く浮き上がらせたり、投射光により、特にフ
レネルレンズにおいて、多重像が形成されたりし、従っ
てスクリーン画像のコントラストが低下し、解像度も劣
化し、ぼけた感じの画像が生じる。(1) Projection light from a projector and external light are reflected on the screen surface. Especially with multi-screen transmissive screens,
When external light is received, the reflected light from each surface is combined, causing the screen to appear white, and the projected light may form multiple images, especially on Fresnel lenses, thus reducing the contrast and resolution of the screen image. This results in deterioration and a blurry image.
（２）複数枚で構成された透過式スクリーンの場合、商
品輸送時の振動などにより、スクリーンが相互にこすれ
、白色粉を生じたり、傷が生じたりする。(2) In the case of a transparent screen made up of multiple sheets, the screens rub against each other due to vibrations during product transportation, causing white powder or scratches.
（３）ＰＭＭＡ樹脂に代表されるように、湿度が高いと
吸水膨張が生じ、スクリーンにそりなどの変形が生じる
。このようなスクリーンにそりが生じると投射画像がぼ
けたり、歪んだりする。特に、近年急成長している３管
式プロジェクションＴＶの場合は、赤（Ｒ）、緑（Ｇ）
、青（Ｂ）の各画像を異なる位置から投射し、スクリー
ン上で天然色画像を合成するようにしているので、上記
のような変形があると１色ずれが生じたり、画質が大幅
に劣化する。(3) When the humidity is high, as typified by PMMA resin, water absorption and expansion occur, causing deformation such as warping of the screen. When such a screen warps, the projected image becomes blurred or distorted. In particular, in the case of three-tube projection TVs, which have grown rapidly in recent years, red (R) and green (G)
, blue (B) images are projected from different positions and a natural color image is synthesized on the screen, so if the above deformation occurs, one color may shift or the image quality may deteriorate significantly. do.
本発明はこのような問題点を解決するためになされたも
ので、スクリーン材表面にフッ素樹脂化合物の薄膜を形
成することにより、スクリーン表面での光反射を低減さ
せ、輸送時の振動による白色粉の発生を防止し、吸水に
よるスクリーンの寸法変化やそりなどを解消できる透過
式スクリーンを提供することを目的とする。The present invention was made to solve these problems, and by forming a thin film of fluororesin compound on the surface of the screen material, light reflection on the screen surface is reduced, and white powder caused by vibration during transportation is reduced. The purpose of the present invention is to provide a transparent screen that can prevent the occurrence of water absorption and eliminate dimensional changes and warpage of the screen due to water absorption.
（１１１題を解決するための手段〕
本発明の透過式スクリーンは、投射機より投射された投
射光による画像を、投射機の反射側に位置する観測者に
より観測できるように表示する透過式スクリーンにおい
て、投射光の入射側と出射側に配置されたフレネルレン
ズ面とレンチキュラー面の少なくとも一方に、フッ素樹
脂化合物よりなる薄膜を形成したことを特徴とする。(Means for Solving Problem 111) The transmissive screen of the present invention is a transmissive screen that displays an image of projection light projected from a projector so that it can be observed by an observer located on the reflective side of the projector. The method is characterized in that a thin film made of a fluororesin compound is formed on at least one of the Fresnel lens surface and the lenticular surface arranged on the incident side and the output side of the projected light.
上記構成の透過式スクリーンにおいては、表面にフッ素
樹脂化合物の薄膜が形成されているので、反射が防止さ
れる。In the transmission screen having the above structure, a thin film of a fluororesin compound is formed on the surface, so reflection is prevented.
第１図は本発明による透過式スクリーンを背面投射装置
に応用した一実施例を示す構成図であり。FIG. 1 is a configuration diagram showing an embodiment in which a transmission type screen according to the present invention is applied to a rear projection device.
第４図における場合と対応する部位には同一の符号を付
すことにし、その説明は適宜省略する。The same reference numerals are given to the parts corresponding to those in FIG. 4, and the explanation thereof will be omitted as appropriate.
スクリーン材２ａはガラス粉末などの光拡散物質を混入
したアクリル（ＰＭＭＡ）樹脂板で、これによりフレネ
ルレンズ面４での屈折光は適切に拡散される。そして、
前面側に設けたレンチキュラー面５で更に大きく左右（
水平）方向に拡散され、前方（ＩＩＩＩ者３側）に出射
される。図の透過式スクリーン２は水平中心断面を示し
たもので、レンチキュラー面５は上下方向に直線状のカ
マボッ形レンチキュラーを連接したち、のである。The screen material 2a is an acrylic (PMMA) resin plate mixed with a light diffusing substance such as glass powder, so that the refracted light at the Fresnel lens surface 4 is appropriately diffused. and,
The lenticular surface 5 provided on the front side allows for even greater left and right (
The light is diffused in the horizontal) direction and emitted forward (to the third person's side). The transparent screen 2 shown in the figure shows a horizontal center cross section, and the lenticular surface 5 is formed by connecting linear kamabot-shaped lenticules in the vertical direction.
６は本発明の特徴をなす従来の透過式スクリーンの表面
に形成したフッ素樹脂化合物の薄膜である。フッ素樹脂
化合物には、例えば旭硝子株式会社製透明フッ累樹脂ｒ
ｃＹＴＯＰＪ （商！Ｍ）が使用される。このフッ素樹
脂化合物は、キャスト成膜可能であり、特殊なフッ素溶
剤に可溶である。この溶液にアクリル樹脂板などのスク
リーン構成部材を浸漬して引き上げ、乾燥させることに
より、屈折率１．３４の低屈折率の透明薄膜を表面に容
易に形成することができる。6 is a thin film of a fluororesin compound formed on the surface of a conventional transmission screen which is a feature of the present invention. Examples of fluororesin compounds include transparent fluororesin r manufactured by Asahi Glass Co., Ltd.
cYTOPJ (quotient!M) is used. This fluororesin compound can be cast into a film and is soluble in a special fluorine solvent. By immersing a screen component such as an acrylic resin plate in this solution, pulling it up, and drying it, a transparent thin film with a low refractive index of 1.34 can be easily formed on the surface.
このように低屈折率の膜をＰＭＭＡの表面に成膜すると
、境界面での反射率ｒは次式
％式％））
かられかるように、半減し、従ってそれに対応して透過
光量が増え、明るい画像が得られる。When a film with a low refractive index is formed on the surface of PMMA in this way, the reflectance r at the interface is halved, as shown by the following formula (%)), and the amount of transmitted light increases accordingly. , a bright image can be obtained.
また、膜厚を１１００ｎ程度にコントロールすることに
より表面反射率を大幅に低減させることができる。Further, by controlling the film thickness to about 1100 nm, the surface reflectance can be significantly reduced.
このように表面反射率の減少した膜は、第２図に示す複
数枚構成の透過式スクリーンにおいてより効果的に使用
できる。それは、透過式スクリーンを複数枚構成とする
と、外来光を受けたとき。A film with reduced surface reflectance as described above can be used more effectively in a multi-layer transmission screen shown in FIG. If you have multiple transmissive screens, this happens when external light is received.
各表面での反射光が重なり、スクリーンを白く浮き上が
らせたり、投射光の場合に、特にフレネルレンズにおい
て多重像が形成されたりすることにより、スクリーン画
像のコントラストが低下し、解像度も劣化し、画像がぼ
けた感じになるからである。The reflected light from each surface overlaps, causing the screen to appear white, and in the case of projected light, multiple images are formed, especially in Fresnel lenses, which reduces the contrast of the screen image, degrades the resolution, and reduces the image quality. This is because it looks blurry.
第２図は、このような複数枚構成の透過式スクリーンに
本発明による透過式スクリーンを適用した他の実施例を
示す断面図である。図において、２′は複数枚構成の透
過式スクリーン、４′ ａは背面側に設けられたアクリ
ル樹脂などの透明樹脂製のフレネルレンズ、４’ ｂ
は同心円状のフレネルレンズ面である。５’ ａはフ
レネルレンズ４′ａの前方に配置されたレンチキュラー
板、５′ ｂ、５’ ｃはそれぞれレンチキュラー板５
’ ｂの背面および前面に設けられた背面レンチキュ
ラー面および前面レンチキュラー面、５’ ｄはレンチ
キュラー板５’ ａの前方に設けられ、レンチキュラー
板５’ ａによる集光のため、投射光が通過しない範
囲に設けられたブラックストライプである。６′はフレ
ネルレンズ４’ ａ、レンチキュラー板５ａ、透明板
７の各々の背面と前面に成膜された本発明によるフッ素
欄脂化合物のｉ膜である。レンチキュラー板５’ ａの
前方に配設された透明板７の１７面７ａには、上下方向
の光拡散指向特性を広げるための水平方向に直線状のい
わゆるかまぼこ状レンチキュラー８が形成されている。FIG. 2 is a sectional view showing another embodiment in which the transmissive screen according to the present invention is applied to such a multi-screen transmissive screen. In the figure, 2' is a transmissive screen composed of multiple sheets, 4' a is a Fresnel lens made of transparent resin such as acrylic resin, and 4' b is provided on the back side.
are concentric Fresnel lens surfaces. 5'a is a lenticular plate placed in front of the Fresnel lens 4'a, and 5'b and 5'c are lenticular plates 5, respectively.
A rear lenticular surface and a front lenticular surface provided on the back and front surfaces of 'b', 5' d are provided in front of the lenticular plate 5' a, and are areas through which the projected light does not pass because the lenticular plate 5' a condenses light. It has a black stripe. Reference numeral 6' denotes an i-film of a fluorine resin compound according to the present invention, which is formed on the back and front surfaces of the Fresnel lens 4'a, the lenticular plate 5a, and the transparent plate 7, respectively. On the 17th surface 7a of the transparent plate 7 disposed in front of the lenticular plate 5'a, so-called semicylindrical lenticules 8, which are straight in the horizontal direction, are formed in order to widen the light diffusion directional characteristics in the vertical direction.
レンチキュラー板５’ ａのピッチＰおよび背面レンチ
キュラー面５’ ｂと前面レンチキュラー面５’ ｃ
の間の厚さｔがＰ″：ｔの関係を満足するとき、投射光
の良好な指向特性が得られる。従って、スクリーン画像
の解像度を上げるためＰを小さくするとｔも薄くなる。Pitch P of lenticular plate 5'a, back lenticular surface 5'b and front lenticular surface 5'c
When the thickness t between them satisfies the relationship P'':t, good directivity of the projected light can be obtained. Therefore, if P is made smaller in order to increase the resolution of the screen image, t will also become thinner.
一般のテレビ放送（ＮＴＳＣ，ＰＡＬ、ＳＥＣＡＭ方式
など）に透過式スクリーンを使用する場合、対角５０イ
ンチのスクリーンとすると、Ｐ＝１ｍｍでも十分な解像
度が得られるが、例えばハイビジョンに代表されるＨＤ
ＴＶの場合は、およそＰ２Ｏ，５ｍｍが要求される。When using a transmissive screen for general television broadcasting (NTSC, PAL, SECAM, etc.), if the screen is 50 inches diagonally, sufficient resolution can be obtained even with P=1 mm, but for example, for HD
For TV, approximately P2O, 5mm is required.
従って、ｔもほぼｔ≦０．５ｍｍが要求されることにな
り１強度、剛性の点で不満足になる。このため、レンチ
キュラー板５’ ａを、強度、剛性が十分大きいフレ
ネルレンズ４’ ａと透明板７の間に挾持し、二重構
造にする。一般のテレビ放送画像を受信する場合、第２
図に示した構成から透明板７を除いた２枚構成のスクリ
ーンを使用することができるが、これはレンチキュラー
板５’ ａの強度や剛性が実用上はぼ十分確保される
ことによる。Therefore, t is required to be approximately t≦0.5 mm, which results in unsatisfactory strength and rigidity. For this purpose, the lenticular plate 5'a is sandwiched between the Fresnel lens 4'a, which has sufficiently high strength and rigidity, and the transparent plate 7 to form a double structure. When receiving general television broadcast images, the second
A two-piece screen can be used by removing the transparent plate 7 from the structure shown in the figure, but this is because the strength and rigidity of the lenticular plate 5'a are practically sufficient.
なお、かまぼこ状レンチキュラー８は、上下方向の光拡
散と指向特性を改良するために設けられたが、レンチキ
ュラー板５’ ａに混入した光拡散物質により上下方
向の光拡散と指向特性の要求が満たされる場合は、透明
板７の背面にかまぼこ状レンチキュラー８を設ける必要
はない。従って平面でよく、単純なガラス板が利用でき
る。Note that the semicylindrical lenticular 8 was provided to improve vertical light diffusion and directional characteristics, but the requirements for vertical light diffusion and directional characteristics were not satisfied by the light diffusing substance mixed in the lenticular plate 5'a. In this case, it is not necessary to provide the semicylindrical lenticules 8 on the back surface of the transparent plate 7. Therefore, a flat surface is sufficient, and a simple glass plate can be used.
第３図は３原色投射装置のスクリーンに色ずれが生じた
場合の状況を示す概略断面図であり、図において１−Ｒ
，１−Ｇ、１−Ｂは、それぞれ。FIG. 3 is a schematic cross-sectional view showing the situation when color shift occurs on the screen of a three-primary color projection device, and in the figure, 1-R
, 1-G and 1-B are respectively.
赤色（Ｒ）、緑色（Ｇ）、青色（Ｂ）画像を投射する投
射器、２′は正常な透過式スクリーン、２′ｎはたわみ
の生じた透過式スクリーンである。A projector projects red (R), green (G), and blue (B) images, 2' is a normal transmission screen, and 2'n is a bent transmission screen.
透過式スクリーンが２′のように正常な場合、投射器１
−Ｒｌ１−０．１−Ｂからの赤、緑、青色画像は正常ス
クリーン２′上の点Ａに正しく合成され正常な天然色画
像を与える。しかし、スクリーンが２″′のようにたわ
むと、対応する三色の画像点は、それぞれ１図の点ＡＲ
，ＡＧ、 ＡＢに収束され、色ずれが生じる。If the transmission screen is normal like 2', projector 1
The red, green and blue images from -Rl1-0.1-B are correctly combined at point A on the normal screen 2' to give a normal natural color image. However, when the screen is deflected by 2''', the corresponding three color image points are respectively the points AR in Figure 1.
, AG, AB, resulting in color shift.
従来は透過式スクリーンの材料としてＰＭＭＡ樹脂を一
般に使用していたが、このようなアクリル樹脂は吸水率
が０．３％と高く、空気中の湿度も吸収する。このため
スクリーンの前面側が吸水膨張する。もし背面側の吸水
率と差があれば、図示の透過式スクリーン２″′のよう
にそることになり、上記のような色ずれが生じることに
なる。Conventionally, PMMA resin has been generally used as a material for transmission screens, but such acrylic resin has a high water absorption rate of 0.3% and also absorbs humidity in the air. Therefore, the front side of the screen absorbs water and expands. If there is a difference in the water absorption rate from the back side, the screen will warp as shown in the transparent screen 2″', and the color shift as described above will occur.
本発明によるフッ素化合物薄膜を表面に成膜すれば、こ
のフッ素化合物の吸水率は０．０１％と非常に小さく、
水分が透過し難いので、アクリル樹脂を本体に用いても
たわみは殆んど発生しない。If the fluorine compound thin film according to the present invention is formed on the surface, the water absorption rate of this fluorine compound is as small as 0.01%.
Since it is difficult for moisture to pass through, there is almost no bending even if acrylic resin is used for the main body.
以上説明したように、本発明によれば、透過式スクリー
ンの表面にフッ素樹脂化合物の薄膜を形成するようにし
たので、投射光や外来光のスクリーン表面での反射率を
下げることができる。従って投射画像のコントラストを
向上させ、多重像の形成を軽減させ、解像度を高めると
共に、画像の輝度を向上させ、鮮鋭度を大幅に向上させ
得る効果がある。特に膜厚を約１１００ｎにコントロー
ルすることによりこれらの作用を最良にできる効果があ
る。As explained above, according to the present invention, since a thin film of a fluororesin compound is formed on the surface of a transmission screen, the reflectance of projected light and external light on the screen surface can be lowered. Therefore, the contrast of the projected image can be improved, the formation of multiple images can be reduced, the resolution can be increased, the brightness of the image can be improved, and the sharpness can be significantly improved. In particular, controlling the film thickness to about 1100 nm has the effect of optimizing these effects.
また、複数枚を重ねて構成する透過式スクリーンに本発
明によるフッ素樹脂化合物を適用すれば。Moreover, if the fluororesin compound according to the present invention is applied to a transmission type screen constructed by stacking a plurality of sheets.
スクリーン相互間の、輸送などで生じる振動に起因する
こすれやぶつかりによる白色粉の発生や損傷を防止でき
る効果がある。This has the effect of preventing the generation of white powder and damage caused by rubbing and bumping between the screens due to vibrations caused during transportation.
更に、吸水によるスクリーンの寸法変化やそりなどの変
形を防止できる効果がある。Furthermore, it has the effect of preventing dimensional changes and deformations such as warping of the screen due to water absorption.
第１図は本発明による透過式スクリーンを背面投射装置
に応用した一実施例を示す構成図、第２図は複数枚構成
の透過式スクリーンに本発明による透過式スクリーンを
適用した場合の他の実施例の構成を示す断面図、第３図
は３原色投射装置のスクリーンに色ずれが生した場合の
状況を示す概略断面図、第４図は従来の透過式スクリー
ンの基本配置を示す概略構成図である。
２・・・透過式スクリーン、２ａ・・・スクリーン部材
、４・・・フレネルレンズ面、５・・・レンチキュラー
面、６・・・薄膜。Fig. 1 is a block diagram showing an embodiment in which the transmissive screen according to the present invention is applied to a rear projection device, and Fig. 2 shows another example in which the transmissive screen according to the present invention is applied to a multi-screen transmissive screen. 3 is a schematic sectional view showing the situation when color shift occurs on the screen of a three-primary color projection device; FIG. 4 is a schematic structure showing the basic arrangement of a conventional transmission screen. It is a diagram. 2... Transmissive screen, 2a... Screen member, 4... Fresnel lens surface, 5... Lenticular surface, 6... Thin film.
Claims (1)
射側に位置する観測者により観測できるように表示する
透過式スクリーンにおいて、前記投射光の入射側と出射
側に配置されたフレネルレンズ面とレンチキュラー面の
少なくとも一方に、フッ素樹脂化合物よりなる薄膜を形
成したことを特徴とする透過式スクリーン。In a transmissive screen that displays an image of projection light projected from a projector so that it can be observed by an observer located on the reflection side of the projector, a Fresnel lens surface disposed on the incidence side and exit side of the projection light. A transmission screen characterized in that a thin film made of a fluororesin compound is formed on at least one of the lenticular surfaces and the lenticular surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016375A JPH03220542A (en) | 1990-01-26 | 1990-01-26 | Transmission type screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016375A JPH03220542A (en) | 1990-01-26 | 1990-01-26 | Transmission type screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03220542A true JPH03220542A (en) | 1991-09-27 |
Family
ID=11914548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2016375A Pending JPH03220542A (en) | 1990-01-26 | 1990-01-26 | Transmission type screen |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03220542A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05134318A (en) * | 1991-11-15 | 1993-05-28 | Matsushita Electric Ind Co Ltd | Transmission screen and production thereof |
| EP0573843A2 (en) * | 1992-06-08 | 1993-12-15 | Matsushita Electric Industrial Co., Ltd. | Lens holder and method for making a thin film |
| JPH06180474A (en) * | 1992-12-14 | 1994-06-28 | Mitsubishi Electric Corp | Transmission screen and its production |
| KR20020051179A (en) * | 2000-12-22 | 2002-06-28 | (주)빛과함께 | The process of producing unreflection bothside-use beam projector screen |
| WO2004003661A1 (en) * | 2002-06-27 | 2004-01-08 | Dai Nippon Printing Co., Ltd. | Projection screen and projection display device |
| WO2006080518A1 (en) * | 2005-01-31 | 2006-08-03 | Kuraray Co., Ltd. | Transmission screen and application device |
| US7403334B2 (en) | 2003-03-07 | 2008-07-22 | Dai Nippon Printing Co., Ltd. | Optical member and process of producing the same |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54145528A (en) * | 1978-04-25 | 1979-11-13 | Polaroid Corp | Translucent screen |
| JPS6187144A (en) * | 1984-06-25 | 1986-05-02 | Mitsubishi Rayon Co Ltd | Transmission type screen |
| JPS62286030A (en) * | 1986-06-04 | 1987-12-11 | Mitsubishi Rayon Co Ltd | Transmissive screen |
| JPS6380241A (en) * | 1986-09-25 | 1988-04-11 | Mitsubishi Rayon Co Ltd | Transmission type screen |
| JPS63191140A (en) * | 1987-02-03 | 1988-08-08 | Dainippon Printing Co Ltd | Transmission type screen for transmission type projection television |
-
1990
- 1990-01-26 JP JP2016375A patent/JPH03220542A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54145528A (en) * | 1978-04-25 | 1979-11-13 | Polaroid Corp | Translucent screen |
| JPS6187144A (en) * | 1984-06-25 | 1986-05-02 | Mitsubishi Rayon Co Ltd | Transmission type screen |
| JPS62286030A (en) * | 1986-06-04 | 1987-12-11 | Mitsubishi Rayon Co Ltd | Transmissive screen |
| JPS6380241A (en) * | 1986-09-25 | 1988-04-11 | Mitsubishi Rayon Co Ltd | Transmission type screen |
| JPS63191140A (en) * | 1987-02-03 | 1988-08-08 | Dainippon Printing Co Ltd | Transmission type screen for transmission type projection television |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05134318A (en) * | 1991-11-15 | 1993-05-28 | Matsushita Electric Ind Co Ltd | Transmission screen and production thereof |
| EP0573843A2 (en) * | 1992-06-08 | 1993-12-15 | Matsushita Electric Industrial Co., Ltd. | Lens holder and method for making a thin film |
| EP0573843A3 (en) * | 1992-06-08 | 1994-12-14 | Matsushita Electric Ind Co Ltd | Lens holder and method for making a thin film. |
| US5612085A (en) * | 1992-06-08 | 1997-03-18 | Matsushita Electric Industrial Co., Ltd. | Lens holder and method for making a thin film |
| JPH06180474A (en) * | 1992-12-14 | 1994-06-28 | Mitsubishi Electric Corp | Transmission screen and its production |
| US5426531A (en) * | 1992-12-14 | 1995-06-20 | Mitsubishi Denki Kabushiki Kaisha | Transmission screen |
| KR20020051179A (en) * | 2000-12-22 | 2002-06-28 | (주)빛과함께 | The process of producing unreflection bothside-use beam projector screen |
| WO2004003661A1 (en) * | 2002-06-27 | 2004-01-08 | Dai Nippon Printing Co., Ltd. | Projection screen and projection display device |
| US7072109B2 (en) | 2002-06-27 | 2006-07-04 | Dai Nippon Printing Co., Ltd. | Projection screen and projection display |
| KR100708877B1 (en) * | 2002-06-27 | 2007-04-18 | 다이니폰 인사츠 가부시키가이샤 | Projection screen and projection display device |
| US7403334B2 (en) | 2003-03-07 | 2008-07-22 | Dai Nippon Printing Co., Ltd. | Optical member and process of producing the same |
| WO2006080518A1 (en) * | 2005-01-31 | 2006-08-03 | Kuraray Co., Ltd. | Transmission screen and application device |
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