JPS62227101A - Light shielding plate - Google Patents

Light shielding plate

Info

Publication number
JPS62227101A
JPS62227101A JP7047986A JP7047986A JPS62227101A JP S62227101 A JPS62227101 A JP S62227101A JP 7047986 A JP7047986 A JP 7047986A JP 7047986 A JP7047986 A JP 7047986A JP S62227101 A JPS62227101 A JP S62227101A
Authority
JP
Japan
Prior art keywords
shielding plate
light shielding
light
opaque layer
transparent plate
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.)
Granted
Application number
JP7047986A
Other languages
Japanese (ja)
Other versions
JP2538562B2 (en
Inventor
Masayasu Negishi
根岸 政恭
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nissho Giken KK
Original Assignee
Nissho Giken KK
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 Nissho Giken KK filed Critical Nissho Giken KK
Priority to JP61070479A priority Critical patent/JP2538562B2/en
Publication of JPS62227101A publication Critical patent/JPS62227101A/en
Application granted granted Critical
Publication of JP2538562B2 publication Critical patent/JP2538562B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

PURPOSE:To save labor and time for prepg. a light shielding plate and to reduce the cost by constituting the light shielding plate of a transparent plate formed three-dimensionally and an opaque layer formed on extremely small faces of the transparent plate. CONSTITUTION:A transparent plate 1 is formed three-dimensionally of such as acrylic resin, etc., and plural extremely small faces are formed on the surfaces. Opaque layers 2 having non-reflecting face are formed on a part of the plural extremely small faces. The opaque layers 2 are formed easily, for example, by chemically treating the extremely fine faces to be formed or by roughening to so-called satin surface by blowing sand, then coating a black matt paint thereon. If such light shielding plate is attached to the front part of a display device so as to arrange a principal face of the transparent plate 1 is parallel to a display face of the display device, the light emitted from the display device transmits toward an observing point after passing through the extremely small faces 3, but almost all of external light incident from ambient environment is shielded by the opaque layer 2 and does not reach the display face of the display device.

Description

【発明の詳細な説明】 (産業上の利用分野) 本発明は遮光板、特にディスプレイ装置の表示面に取付
【プで、外光が表示面へ入射するのを妨げるために用い
られる遮光板に関する。
DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a light-shielding plate, and particularly to a light-shielding plate that is attached to the display surface of a display device and used to prevent external light from entering the display surface. .

(従来の技術) CRT表示装置、LED表示装置害のディスプレイ装置
は、種々の機器に盛んに採入れられている。これらのデ
ィスプレイ装置上の表示を見やすくするためには、明る
くコントラストの高い画像を形成する必要がある。この
うち、明るい画像を得るためには、CRTあるいはLE
Dの輝度を上げればよい。これは例えばCRTであれば
、蛍光面の■予成率を向上させる試みを行い、LEDで
あれば大電力動作の素子を開発するといった装置自体の
改良を行うことによって達成できる。
(Prior Art) Display devices such as CRT display devices and LED display devices are widely used in various devices. In order to make the display on these display devices easier to see, it is necessary to form bright and high contrast images. Of these, in order to obtain bright images, CRT or LE
All you have to do is increase the brightness of D. This can be achieved, for example, in the case of a CRT by attempting to improve the preforming rate of the phosphor screen, and in the case of an LED by improving the device itself, such as by developing an element that operates with high power.

一方、コントラストの高い画像を得るためには、画像の
白レベルと黒レベルどの比を向上さければよい。この比
が大きければ大きいほど、鮮明で児やすい画像となる。
On the other hand, in order to obtain an image with high contrast, it is sufficient to improve the ratio between the white level and the black level of the image. The larger this ratio is, the clearer and easier the image will be.

ここでまず白レベルを決定する要因は何かを考えると、
この白レベルはディスプレイ装置の輝度で決定されるこ
とになる。即ち表示面の単位面積あたりの最高発光照度
またt:(輝度が白レベルに対応することになる。これ
に対し黒レベルはディスプレイ装置自身の輝度とは無関
係に、装置の置かれた部屋の明るさで決定されるのであ
る。即ち、周囲にいわゆる部屋の明かりが存在していれ
ば、この明かりによる照明を受け、装置の表示面は所定
の照度をもつことになるのである。従って白レベルはデ
ィスプレイ装置の性能ににってほぼ決定されるが、黒レ
ベルは部屋の明るさによって変動することになる。コン
トラストの高い画像を得るためには、この白レベルと黒
レベルとの差を大きくとる、即ち部屋を暗くする必要が
ある。ここが従来のディスプレイ装置の大きな欠点の1
つであり、明るい部屋では画像が全体的に白っぽく不鮮
明となる原因である。
First, consider what factors determine the white level.
This white level will be determined by the brightness of the display device. In other words, the maximum luminance per unit area of the display surface or t: (brightness corresponds to the white level.On the other hand, the black level is the brightness of the room in which the device is placed, regardless of the brightness of the display device itself. In other words, if there is so-called room light in the surrounding area, the display surface of the device will be illuminated by this light and will have a predetermined illuminance.Therefore, the white level will be determined by The black level is largely determined by the performance of the display device, but it also varies depending on the brightness of the room.In order to obtain a high-contrast image, the difference between the white level and black level must be large. , that is, it is necessary to make the room dark.This is one of the major drawbacks of conventional display devices.
This is the cause of the overall image becoming whitish and unclear in a bright room.

明るい部屋でも鮮明な画像を得ることができるようにす
るためには、明るい部屋でも黒レベルをNG  /  
IQ−41−A  +−1ト t−’ニー  し g 
 nlf、  −(1)M3  女 th  1li2
  ’A  へ■ しなる。黒レベルを低く保つ1つの
方法として、部屋の明かりを表示面から遮断する方法が
ある。例えば米国スリーエム社が開発したライトコント
ロールフィルムは、部屋の明かりを表示面から遮断する
性質を有する。第3図にこのライトコントロールフィル
ムの遮光原理図を示す。ライトコントロールフィルム4
は透明体5と黒色フィルム6を交互に配した構造を有し
、いわば窓のブラインドの形状をしている。これをディ
スプレイ装置、例−えばLED索子7の表示面上に配す
れば、LED素子7からの光8はライ1−コントロール
フィルム4を透過して視点9まで到達するが、外光、例
えば部屋の照明10からの光11は、黒色フィルム6に
にって遮光され、LED素子7まで到達しな−いことに
なる。従ってLED素子7の黒レベルは、部屋の照明1
0にかかわらず低く保たれ、コントラス1〜を向上さぜ
ることができる。
In order to be able to obtain a clear image even in a bright room, the black level must be set to NG even in a bright room.
IQ-41-A +-1 t-'knee g
nlf, -(1)M3 female th 1li2
'A ■ bend. One way to keep the black level low is to block the light in the room from the display surface. For example, a light control film developed by 3M Corporation of the United States has the property of blocking room light from the display surface. FIG. 3 shows a diagram of the light shielding principle of this light control film. light control film 4
has a structure in which transparent bodies 5 and black films 6 are arranged alternately, and has the shape of a window blind. If this is placed on the display surface of a display device, for example an LED element 7, the light 8 from the LED element 7 will pass through the light 1-control film 4 and reach the viewpoint 9. Light 11 from the room lighting 10 is blocked by the black film 6 and does not reach the LED element 7. Therefore, the black level of the LED element 7 is the same as that of the room lighting 1.
It is kept low regardless of contrast 0, and can improve contrast 1 and up.

(発明が解決しようとする問題点) しかしながら、ライトコントロールフィルムのような従
来の遮光板は、製造コストが非常に高くなるという問題
点がある。ライトコントロールフィルムを製造するため
には、透明体5と黒色フィルム6とを交互に重ねて接着
して多層体を作り、更にこの多層体を切断研磨するとい
う工程が必要となり、多くの労力と時間を費し、結局製
造コストが非常に高くつくのである。
(Problems to be Solved by the Invention) However, conventional light shielding plates such as light control films have a problem in that manufacturing costs are extremely high. In order to manufacture a light control film, it is necessary to create a multi-layered body by alternately stacking and adhering the transparent body 5 and the black film 6, and then cutting and polishing this multi-layered body, which requires a lot of labor and time. This results in very high manufacturing costs.

そこで本発明は製造工程における労力と時間を削減し、
製造コス1−を低減しうる遮光板を提供することを目的
とする。
Therefore, the present invention reduces labor and time in the manufacturing process,
It is an object of the present invention to provide a light shielding plate that can reduce manufacturing cost.

(問題点を解決するための手段) 本発明は、観測対象と観測点との間に設置され、観測対
象に外光が入射するのを妨げる機能を果たす遮光板を、
表面に多数の微小面が形成された少なくとも1枚の透明
板から構成し、かつ、この微小面のうち観測対象から観
測点へ向かう光路と交わらない微小面上に不透明層を形
成し、上記問題点を解決したものである。
(Means for Solving the Problems) The present invention provides a light shielding plate that is installed between an observation target and an observation point and has the function of preventing external light from entering the observation target.
It is composed of at least one transparent plate having a large number of microscopic surfaces formed on its surface, and an opaque layer is formed on the microscopic surfaces that do not intersect with the optical path from the observation object to the observation point, and the above-mentioned problem is solved. This solves the problem.

(作 用) 上述のような構成にすれば、外部からの光は不透明層に
よって遮蔽され、観測対象、例えばディスプレイ装置の
表示面まで到達しないことになる。
(Function) With the above configuration, light from the outside is blocked by the opaque layer and does not reach the observation target, for example, the display surface of the display device.

即ら、不透明層が形成された透明板はルーバーとしての
動きをし、ディスプレイ装置の表示面からの光のみを透
過させる働きをする。このように外部からの光を遮蔽す
ることは、明るい環境であっても黒レベルを低く保つ効
果を生じ、明るい部屋でもコンl−ラストの高い鮮明な
画像を得ることができるようになる。しかも微小面を有
する透明板は一体成形によって容易に製造することがで
き、不透明層の形成も塗装あるいは感光プロセスによっ
て容易に行うことができ、製造コストを大幅に低減する
ことができる。
That is, the transparent plate on which the opaque layer is formed acts as a louver, and functions to transmit only the light from the display surface of the display device. Shielding external light in this way has the effect of keeping the black level low even in a bright environment, making it possible to obtain a clear image with high contrast even in a bright room. Furthermore, the transparent plate having microscopic surfaces can be easily manufactured by integral molding, and the opaque layer can be easily formed by painting or a photosensitive process, so that manufacturing costs can be significantly reduced.

(実施例) 以下本発明を図示する実施例に基づいて説明する。第1
図(a)〜(f)は本発明に係る遮光板の一実施例を示
す図である。なお図ではこの遮光板の一部分だけが示さ
れている。透明板1は例えばアクリル樹脂等で立体成形
し、表面に複数の微小面を形成するようにする。この複
数の微小面の一部には、無反射表面を有する不透明層2
が形成されている。不透明層2の表面は反射面としても
にいが、無反射面とする方が遮光効果を高める上で好ま
しい。この不透明層2を形成するには、例えば形成すべ
き微小面を化学処理したり、砂を吹きつけたりしていわ
ゆる梨地状に荒らし、この上からつや消しの黒色塗料を
塗布するような方法で容易に実施できる。粗面処理で透
明板1側も表面が荒らされているため、形成された不透
明層゛2は、両面ともに無反射面となる。この不透明層
2は、透明板1の主面(マクロ的に見たとぎの広がりを
もった面)に対して直角となっているが、観測点位置に
応じてこの角度は自由に変えることができる。例えば第
1図(a)〜(f)では、不透明層2は水平方向に伸び
ているが、これを斜めに形成し、凹凸部の断面を台形に
するにうなfB造にしてもよい。第1図(a)、(c)
、(f)は透明板1の一方の側にのみ微小面を形成した
例であり、第1図(b)、(d)、(e)は両側に微小
面を形成した例である。第1図(a)、(b)、(f)
は、不透明層2が形成されていない微小面3が、透明板
1の主面に対して傾斜角をなすように形成された例であ
り、第1図(C)、(d)、(e)は、不透明層2が形
成されていない微小面3が、透明板1の主面に対して平
行になるように形成された例である。両側に微小面が形
成された第1図(b)、(d)、(e)では、両側の対
応する微小面3が平行となっている。
(Example) The present invention will be described below based on an illustrated example. 1st
Figures (a) to (f) are diagrams showing one embodiment of a light shielding plate according to the present invention. Note that only a portion of this light shielding plate is shown in the figure. The transparent plate 1 is three-dimensionally molded from, for example, acrylic resin, and has a plurality of microscopic surfaces formed on its surface. An opaque layer 2 having a non-reflective surface is formed on a part of the plurality of microsurfaces.
is formed. Although the surface of the opaque layer 2 may be used as a reflective surface, it is preferable to use a non-reflective surface in order to enhance the light shielding effect. This opaque layer 2 can be easily formed by, for example, chemically treating the microsurfaces to be formed or by blowing sand to roughen them into a so-called matte finish, and then applying a matte black paint over the surface. Can be implemented. Since the surface of the transparent plate 1 is also roughened by surface roughening, both surfaces of the formed opaque layer 2 become non-reflective surfaces. This opaque layer 2 is perpendicular to the main surface (macroscopically expansive surface) of the transparent plate 1, but this angle can be freely changed depending on the position of the observation point. can. For example, in FIGS. 1(a) to 1(f), the opaque layer 2 extends in the horizontal direction, but it may be formed obliquely to have an fB structure in which the cross section of the uneven portion is trapezoidal. Figure 1 (a), (c)
, (f) are examples in which microscopic surfaces are formed only on one side of the transparent plate 1, and FIGS. 1(b), (d), and (e) are examples in which microscopic surfaces are formed on both sides. Figure 1 (a), (b), (f)
1 is an example in which the microsurface 3 on which the opaque layer 2 is not formed is formed at an angle of inclination with respect to the main surface of the transparent plate 1, and FIGS. ) is an example in which the microsurface 3 on which the opaque layer 2 is not formed is formed parallel to the main surface of the transparent plate 1. In FIGS. 1(b), (d), and (e) in which microsurfaces are formed on both sides, the corresponding microsurfaces 3 on both sides are parallel.

このような遮光板をディスプレイ装置の前面に、透明板
1の主面とディスプレイ装置の表示面とが平行になるよ
うに設置すれば、ディスプレイ装置からの光は微小面3
を通過して観測点へ向かうが、周囲の環境からの外光の
ほとんどは不透明層2によって遮蔽されてしまい、ディ
スプレイ装置の表示面まで到達しない。即ち、透明&1
を通過する光は、はとんどがディスプレイ装置で発光し
た光で占められることになる。従ってディスプレイ装置
の表示面に形成される画像の黒レベルは、明るい環境で
使用した場合であっても低く保たれ、コントラストの高
い鮮明な画像が得られることになる。
If such a light shielding plate is installed in front of the display device so that the main surface of the transparent plate 1 and the display surface of the display device are parallel, light from the display device will be directed to the microscopic surface 3.
However, most of the external light from the surrounding environment is blocked by the opaque layer 2 and does not reach the display surface of the display device. i.e. transparent &1
Most of the light passing through the display device is occupied by light emitted by the display device. Therefore, the black level of the image formed on the display surface of the display device is kept low even when the display device is used in a bright environment, and a clear image with high contrast can be obtained.

また、第1図(a)、(b)、(f)に示す実施例の特
徴は、微小面3が透明&1の主面に対して所定の傾斜角
をなしている点である。前述のように透明板1はアクリ
ル樹脂等を立体成形して形成されるため、表面ではかな
り光の反射が生じる。
Furthermore, the embodiments shown in FIGS. 1(a), (b), and (f) are characterized in that the microsurface 3 forms a predetermined inclination angle with respect to the main surface of the transparent &1. As mentioned above, since the transparent plate 1 is formed by three-dimensionally molding acrylic resin or the like, a considerable amount of light is reflected on the surface.

この反射光が観測位置へ進むと、ディスプレイ装置上の
画(像が非常に見にくくなる。ところが微小面3を傾斜
させておくことにより、この反射光を観測位置以外の方
向に導くことができ、反射光の影響を避けることができ
る。なお、不透明層2は、例えば0.2In!R間隔程
度の微小ピッチで設けられており、肉眼でこの遮光板を
観察した場合は、この不透明層2による縞がディスプレ
イ装置上の画像に悪影響を与えることはない。
When this reflected light travels to the observation position, the image on the display device becomes very difficult to see.However, by tilting the microscopic surface 3, this reflected light can be guided in a direction other than the observation position. The influence of reflected light can be avoided.The opaque layer 2 is provided at a minute pitch of, for example, 0.2 In!R, and when observing this light shielding plate with the naked eye, The stripes do not adversely affect the image on the display device.

第2図は2つの透明板1,1′を組合せて遮光板を形成
した例である。第2図(a)は第1図(C)に示す透明
板を互いに向き合わせて配置したもので、遮光効果を一
層向上させることができる。第2図(b)は第1図(C
)に示す透明板を、微小面どうしが互いに接するように
嵌合固着させた例である。この場合、不透明層2は、ど
ちらか一方の透明板だけに形成させておけば足る。第2
図(C)は不透明層2を更に長くとって遮光効果を向上
させた例である。また、第2図(d)は嵌合固着させた
一方の透明板1が傾斜した微小面3を右する例で、前述
したように表面反射の影響を避けることができる。
FIG. 2 shows an example in which two transparent plates 1 and 1' are combined to form a light shielding plate. In FIG. 2(a), the transparent plates shown in FIG. 1(C) are arranged facing each other, and the light shielding effect can be further improved. Figure 2 (b) is similar to Figure 1 (C
This is an example in which the transparent plate shown in ) is fitted and fixed so that the microscopic surfaces are in contact with each other. In this case, it is sufficient to form the opaque layer 2 on only one of the transparent plates. Second
Figure (C) is an example in which the opaque layer 2 is made longer to improve the light shielding effect. Further, FIG. 2(d) shows an example in which one of the transparent plates 1 which are fitted and fixed is located on the inclined microscopic surface 3, and as described above, the influence of surface reflection can be avoided.

以上いくつかの例は、本発明のほんの一例にすぎず、こ
の他種々の組合せが可能である。また、透明板を二層以
上設ける場合、微小面の形成ピッチをそれぞれ変えても
かまわないし、対向する微小面を互いに平行にする必要
もない。このように複数の透明板1を組合せる場合は、
各透明板を立体成形により製造した後、組合せ固着作業
を行えばよいので、製造工程は非常に単純である。
The above several examples are only examples of the present invention, and various other combinations are possible. Furthermore, when two or more layers of transparent plates are provided, the formation pitch of the microscopic surfaces may be changed, and the opposing microscopic surfaces do not need to be parallel to each other. When combining multiple transparent plates 1 in this way,
The manufacturing process is very simple, since each transparent plate is manufactured by three-dimensional molding and then the assembly and fixing work is performed.

また、本発明に係る遮光板は、ディスプレイ装置に用い
るだけでなく、窓に取付けてブラインドとして利用する
こともできる。このとき、透明板1のかわりに、光を散
乱するような粒子を含んだ半透明板を用いれば、柔らか
い感触をもった採光板として利用することも可能である
。半透明板を用いずに、透明板の表面を梨地状に荒らし
ても同様の効果が得られる。更にこの半透明板あるいは
梨地面にプロジェクタ光を投映すれば、スクリーンどし
ての機能を果たすことも可能である。
Further, the light shielding plate according to the present invention can be used not only for display devices, but also for use as a blind by attaching it to a window. At this time, if a translucent plate containing particles that scatter light is used instead of the transparent plate 1, it can also be used as a light-lighting plate with a soft feel. A similar effect can be obtained by roughening the surface of the transparent plate into a satin-like appearance without using a semi-transparent plate. Furthermore, by projecting projector light onto this translucent plate or pear-shaped surface, it can function as a screen.

(発明の効果) 以上のとおり本発明によれば、遮光板を立体成形した透
明板と、この透明板の微小面上に形成した不透明層とに
よって構成するようにしたため、製造工程における労力
と時開を削減し、製造コストを低減することができる。
(Effects of the Invention) As described above, according to the present invention, the light shielding plate is composed of a three-dimensionally molded transparent plate and an opaque layer formed on the microscopic surface of this transparent plate, which saves labor and time in the manufacturing process. It is possible to reduce openings and reduce manufacturing costs.

【図面の簡単な説明】[Brief explanation of drawings]

第1図は本発明に係る遮光板の実施例を示す部分斜視図
、第2図は本発明に係る遮光板を複数の透明板で構成し
た実施例を示す側面図、第3図は従来の遮光板ににる遮
光機能の原理図である。 1.1′・・・透明板、2.2′・・・不透明板、3・
・・微小面、4・・・ライトコントロールフィルム、5
・・・8・・・LED素子からの光、9・・・視点、1
0・・・部屋の照明、11・・・部屋の照明からの光。 出願人代理人  佐  藤  −雄 (G)            (b)(C)    
        (d)(e)           
 (f)嘉1図 (Q)        (b) 1゜ (C)         (d) 躬2図
FIG. 1 is a partial perspective view showing an embodiment of the light shielding plate according to the present invention, FIG. 2 is a side view showing an embodiment in which the light shielding plate according to the present invention is composed of a plurality of transparent plates, and FIG. 3 is a partial perspective view showing an embodiment of the light shielding plate according to the present invention. It is a principle diagram of the light shielding function of a light shielding plate. 1.1'...transparent plate, 2.2'...opaque plate, 3.
...Microplane, 4...Light control film, 5
...8...Light from the LED element, 9...Viewpoint, 1
0... Lighting in the room, 11... Light from the lighting in the room. Applicant's representative: Yu Sato (G) (b) (C)
(d)(e)
(f) Figure 1 (Q) (b) Figure 1 (C) (d) Figure 2

Claims (1)

【特許請求の範囲】 1、観測対象と観測点との間に設置され、前記観測対象
に外光が入射するのを妨げる機能を果たす遮光板であつ
て、表面に多数の微小面が形成された少なくとも1枚の
透明または半透明板を備え、前記微小面のうち前記観測
対象から前記観測点へ向かう光路と交わらない微小面上
の少なくとも一部に不透明層が形成されていることを特
徴とする遮光板。 2、不透明層が無反射表面を有することを特徴する特許
請求の範囲第1項記載の遮光板。 3、不透明層が形成された微小面が、透明板の主面に対
してほぼ垂直をなす微小面であることを特徴とする特許
請求の範囲1項または第2項記載の遮光板。 4、不透明層が形成された微小面が、透明板の主面に対
して傾斜面をなす微小面であることを特徴する特許請求
の範囲第1項または第2項記載の遮光板。 5、不透明層が形成されていない微小面が、透明板の主
面に対して傾斜角をなす微小面であることを特徴とする
特許請求の範囲第1項乃至第4項のいずれかに記載の遮
光板。 6、不透明層が形成されていない微小面が、透明板の主
面に対して平行であることを特徴とする特許請求の範囲
第1項乃至第4項のいずれかに記載の遮光板。 7、透明板の一方の側にのみ微小面が形成されているこ
とを特徴とする特許請求の範囲第1項乃至第6項のいず
れかに記載の遮光板。 8、透明板の両側に微小面が形成され、両側の不透明層
が形成されていない対応する微小面が互いに平行である
ことを特徴とする特許請求の範囲第1項乃至第6項のい
ずれかに記載の遮光板。 9、微小面どうしが互いに接するように嵌合する2枚の
透明板を備えることを特徴とする特許請求の範囲第1項
乃至第8項のいずれかに記載の遮光板。 10、透明板がアクリル樹脂から成ることを特徴とする
特許請求の範囲第1項乃至第9項のいずれかに記載の遮
光板。 11、半透明板が光を散乱する粒子を含んでいることを
特徴とする特許請求の範囲第1項乃至第9項のいずれか
に記載の遮光板。 12、不透明層がつや消しの黒色塗料から成ることを特
徴とする特許請求の範囲第1項乃至第11項のいずれか
に記載の遮光板。 13、不透明層の表面が梨地状の粗面から成ることを特
徴とする特許請求の範囲第1項乃至第12項のいずれか
に記載の遮光板。 14、不透明層が形成されいない微小面の一部または全
部が梨地状の粗面から成ることを特徴とする特許請求の
範囲第1項乃至第13項のいずれかに記載の遮光板。
[Claims] 1. A light-shielding plate that is installed between an observation target and an observation point and has a function of preventing external light from entering the observation target, and has a large number of microscopic surfaces formed on its surface. and at least one transparent or semi-transparent plate, and an opaque layer is formed on at least a portion of the microsurface that does not intersect with the optical path from the observation object to the observation point. A light shielding plate. 2. The light shielding plate according to claim 1, wherein the opaque layer has a non-reflective surface. 3. The light shielding plate according to claim 1 or 2, wherein the microsurface on which the opaque layer is formed is a microsurface substantially perpendicular to the main surface of the transparent plate. 4. The light shielding plate according to claim 1 or 2, wherein the microsurface on which the opaque layer is formed is a microsurface that forms an inclined surface with respect to the main surface of the transparent plate. 5. The microsurface on which the opaque layer is not formed is a microsurface that forms an inclined angle with respect to the main surface of the transparent plate, according to any one of claims 1 to 4. shading board. 6. The light shielding plate according to any one of claims 1 to 4, wherein the microsurface on which the opaque layer is not formed is parallel to the main surface of the transparent plate. 7. The light shielding plate according to any one of claims 1 to 6, characterized in that a microscopic surface is formed only on one side of the transparent plate. 8. Any one of claims 1 to 6, characterized in that microscopic surfaces are formed on both sides of the transparent plate, and corresponding microscopic surfaces on both sides on which no opaque layer is formed are parallel to each other. The light shielding plate described in . 9. The light-shielding plate according to any one of claims 1 to 8, comprising two transparent plates that fit together so that their microscopic surfaces are in contact with each other. 10. The light shielding plate according to any one of claims 1 to 9, wherein the transparent plate is made of acrylic resin. 11. The light shielding plate according to any one of claims 1 to 9, wherein the semitransparent plate contains particles that scatter light. 12. The light shielding plate according to any one of claims 1 to 11, wherein the opaque layer is made of a matte black paint. 13. The light shielding plate according to any one of claims 1 to 12, wherein the surface of the opaque layer is made of a matte rough surface. 14. The light-shielding plate according to any one of claims 1 to 13, wherein part or all of the microsurfaces on which the opaque layer is not formed are made of satin-like rough surfaces.
JP61070479A 1986-03-28 1986-03-28 Shade plate Expired - Lifetime JP2538562B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP61070479A JP2538562B2 (en) 1986-03-28 1986-03-28 Shade plate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61070479A JP2538562B2 (en) 1986-03-28 1986-03-28 Shade plate

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP15174395A Division JP2624462B2 (en) 1995-06-19 1995-06-19 Shade plate

Publications (2)

Publication Number Publication Date
JPS62227101A true JPS62227101A (en) 1987-10-06
JP2538562B2 JP2538562B2 (en) 1996-09-25

Family

ID=13432697

Family Applications (1)

Application Number Title Priority Date Filing Date
JP61070479A Expired - Lifetime JP2538562B2 (en) 1986-03-28 1986-03-28 Shade plate

Country Status (1)

Country Link
JP (1) JP2538562B2 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0237302A (en) * 1988-07-27 1990-02-07 Dai Ichi Seiko Co Ltd Production of filter for display
JPH02111917A (en) * 1988-10-21 1990-04-24 Hitachi Metals Ltd Optical isolator
JP2007188085A (en) * 2006-01-13 2007-07-26 Barco Nv Light-shielding apparatus for shielding display system, display system for displaying image, and method for manufacturing the display system
JP2009216778A (en) * 2008-03-07 2009-09-24 Fujifilm Corp Method of manufacturing optical path regulating sheet and optical path regulating sheet
JP2010197483A (en) * 2009-02-23 2010-09-09 Fukuvi Chem Ind Co Ltd Blind panel and method of manufacturing the same
WO2019026863A3 (en) * 2017-07-30 2019-05-09 平井正義 Decorative body, decorative body lighting equipment, decorative body manufacturing apparatus, and decorative body manufacturing method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56111803A (en) * 1980-02-09 1981-09-03 Dainippon Printing Co Ltd Direction-selective light-shielding body
JPS57165801A (en) * 1981-04-06 1982-10-13 Masayasu Negishi Removing device for out-of-field surface reflection having less image movement and less color generation
JPS59104602A (en) * 1982-12-08 1984-06-16 Dainippon Printing Co Ltd Light shielding plate
JPS6083901A (en) * 1983-10-14 1985-05-13 Dainippon Printing Co Ltd Light shielding plate

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56111803A (en) * 1980-02-09 1981-09-03 Dainippon Printing Co Ltd Direction-selective light-shielding body
JPS57165801A (en) * 1981-04-06 1982-10-13 Masayasu Negishi Removing device for out-of-field surface reflection having less image movement and less color generation
JPS59104602A (en) * 1982-12-08 1984-06-16 Dainippon Printing Co Ltd Light shielding plate
JPS6083901A (en) * 1983-10-14 1985-05-13 Dainippon Printing Co Ltd Light shielding plate

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0237302A (en) * 1988-07-27 1990-02-07 Dai Ichi Seiko Co Ltd Production of filter for display
JPH02111917A (en) * 1988-10-21 1990-04-24 Hitachi Metals Ltd Optical isolator
JP2007188085A (en) * 2006-01-13 2007-07-26 Barco Nv Light-shielding apparatus for shielding display system, display system for displaying image, and method for manufacturing the display system
JP2009216778A (en) * 2008-03-07 2009-09-24 Fujifilm Corp Method of manufacturing optical path regulating sheet and optical path regulating sheet
JP2010197483A (en) * 2009-02-23 2010-09-09 Fukuvi Chem Ind Co Ltd Blind panel and method of manufacturing the same
WO2019026863A3 (en) * 2017-07-30 2019-05-09 平井正義 Decorative body, decorative body lighting equipment, decorative body manufacturing apparatus, and decorative body manufacturing method

Also Published As

Publication number Publication date
JP2538562B2 (en) 1996-09-25

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