JPH046023Y2 - - Google Patents
Info
- Publication number
- JPH046023Y2 JPH046023Y2 JP1982054965U JP5496582U JPH046023Y2 JP H046023 Y2 JPH046023 Y2 JP H046023Y2 JP 1982054965 U JP1982054965 U JP 1982054965U JP 5496582 U JP5496582 U JP 5496582U JP H046023 Y2 JPH046023 Y2 JP H046023Y2
- Authority
- JP
- Japan
- Prior art keywords
- light
- lenticular lens
- absorbing layer
- shape
- 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.)
- Expired
Links
- 239000000758 substrate Substances 0.000 claims description 13
- 230000005540 biological transmission Effects 0.000 claims description 9
- 239000010410 layer Substances 0.000 description 22
- 238000007639 printing Methods 0.000 description 6
- 239000000203 mixture Substances 0.000 description 5
- 238000012546 transfer Methods 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- 238000004040 coloring Methods 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000010422 painting Methods 0.000 description 3
- 229920003002 synthetic resin Polymers 0.000 description 3
- 239000000057 synthetic resin Substances 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 238000003490 calendering Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000007645 offset printing Methods 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- -1 black or gray Substances 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000012461 cellulose resin Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000008199 coating composition Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000009760 electrical discharge machining Methods 0.000 description 1
- 238000005323 electroforming Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000007646 gravure printing Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000007644 letterpress printing Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 229920005668 polycarbonate resin Polymers 0.000 description 1
- 239000004431 polycarbonate resin Substances 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 229920005990 polystyrene resin Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000010023 transfer printing Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Landscapes
- Overhead Projectors And Projection Screens (AREA)
Description
【考案の詳細な説明】
本考案は透過型映写用スクリーン板に適したレ
ンチキユラーレンズ板の形状に関するものであ
る。[Detailed Description of the Invention] The present invention relates to the shape of a lenticular lens plate suitable for a transmission type projection screen plate.
テレビジヨンや映画の画像を明室において拡大
投影し観察し得る透過型映写用スクリーン板とし
てはフレネルレンズ板とレンチキユラーレンズ板
とを組み合わせたものが一般に使用されている。
そしてレンチキユラーレンズ板には、明室での使
用時に画像のコントラストを低下させないため、
即ち、外光の不要な反射を防止するために、レン
チキユラーレンズ板のレンチキユラーレンズ形状
を設けていない面に、レンチキユラーレンズの非
集光部相当箇所に光吸収性層（通常「ブラツクス
トライプ」と称せられる。）を設けることは知ら
れている。かかる光吸収性層を設ける態様として
は、(イ)平面の所定位置に設ける態様、(ロ)凸部に設
ける態様、(ハ)凹部に設ける態様があり、(イ)におい
ては印刷ないし転写、(ロ)においては印刷、転写な
いし塗装、(ハ)においてはワイピング塗装により設
けるのが普通であり、光吸収性層とレンチキユラ
ーレンズとの位置合わせの容易さ、光吸収性層を
設ける工程の容易さから(ロ)の態様が便利であると
されている。(ロ)に比較すると(イ)では光吸収性層と
レンチキユラーレンズとの位置合わせが容易では
なく、(ハ)においては確実性に欠ける。しかしなが
ら上記(ロ)の態様においても未だ欠点がある。(ロ)の
態様のレンチキユラーレンズ板の製造においては
印刷、転写若しくは塗装のいずれによつて光吸収
性層を設けても、光吸収性層が凸部の肩や立ち上
がり部に廻り込み、エツジのシヤープな光吸収性
層が得られず、又、光吸収性層の着色濃度は印
刷、塗装のいずれによつても印刷条件、塗装条件
の変化に追随して変化し、転写にあつても転写シ
ート作成時に印刷条件、塗装条件により着色濃度
が変化するため、光吸収性層形成時にその着色濃
度を高濃度としながら一定に制御するのは困難で
ある。 A combination of a Fresnel lens plate and a lenticular lens plate is generally used as a transmission type projection screen plate for enlarging and projecting television or movie images for observation in a bright room.
And the lenticular lens plate has a special feature that prevents the image contrast from decreasing when used in a bright room.
That is, in order to prevent unnecessary reflection of external light, a light absorbing layer (usually It is known to provide a "black stripe"). Examples of ways to provide such a light-absorbing layer include (a) providing it at a predetermined position on a flat surface, (b) providing it on a convex part, and (c) providing it in a recessed part. In (a), printing or transfer, In (B), it is usually provided by printing, transfer or painting, and in (C), it is usually provided by wiping coating, and it is easy to align the light absorbing layer and the lenticular lens, and the process of providing the light absorbing layer The mode (b) is said to be convenient because of its ease of use. Compared to (b), in (a) it is not easy to align the light absorbing layer and the lenticular lens, and in (c) there is a lack of certainty. However, the above embodiment (b) still has drawbacks. In manufacturing the lenticular lens plate according to the embodiment (b), even if the light-absorbing layer is provided by printing, transfer, or painting, the light-absorbing layer wraps around the shoulders and rising portions of the convex portions. It is not possible to obtain a sharp light-absorbing layer with an edge, and the color density of the light-absorbing layer changes depending on changes in printing conditions and coating conditions, both during printing and painting, and during transfer. Also, since the coloring density changes depending on the printing conditions and coating conditions during the production of the transfer sheet, it is difficult to control the coloring density at a constant level while keeping the coloring density high when forming the light-absorbing layer.
本考案者は上記従来の欠点に鑑み検討の結果、
光吸収性層を凸部に設ける際に凸部の頂部を予
め、凹状の曲面形状とすることにより、従来の欠
点を解消しうることを見い出して本考案に到つた
ものである。即ち、本考案の透過型映写用スクリ
ーン板用レンチキユラーレンズ板は、光透過性基
板の一方の面にレンチキユラーレンズ形状を有
し、他方の面の前記レンチキユラーレンズを通過
する光源光が集光しない部分に前記基板より突出
する凸部を設け、該凸部の表面に光吸収性層を有
する透過型映写用スクリーン板用レンチキユラー
レンズ板において、前記凸部の頂部に凹状の曲面
形状部を設け、かつ、該曲面形状部には該曲面形
状に整合する形状の光吸収性層が形成されている
ことを特徴とするものである。 As a result of consideration in view of the above-mentioned conventional drawbacks, the inventor of the present invention found that
The present invention was developed based on the discovery that the drawbacks of the conventional method can be overcome by forming the tops of the convex portions into a concave curved shape in advance when providing the light-absorbing layer on the convex portions. That is, the lenticular lens plate for a transmission type projection screen plate of the present invention has a lenticular lens shape on one surface of a light-transmitting substrate, and a light source that passes through the lenticular lens on the other surface. In a lenticular lens plate for a transmission projection screen plate, a convex portion protruding from the substrate is provided in a portion where light is not focused, and a light absorbing layer is provided on the surface of the convex portion. The present invention is characterized in that a curved surface shape portion is provided, and a light absorbing layer having a shape matching the curved surface shape is formed on the curved surface shape portion.
なお、本考案において、凸部の頂部に設けた凹
状の曲面形状部および該曲面形状に整合する光吸
収性層の形状とは円または楕円の円弧に近似され
るものをいい、角、段差等を有する形状は含まな
いものである。 In addition, in the present invention, the concave curved surface portion provided at the top of the convex portion and the shape of the light-absorbing layer that matches the curved surface shape are those that are approximated to the arc of a circle or an ellipse, and include corners, steps, etc. This does not include shapes that have .
また、凸部の頂部の凹状の曲面形状に整合する
形状の光吸収性層とは、光透過性基板に向かつて
凸状の曲面形状をなしており、中央部で光吸収性
層の厚みが最も大きくなつている形状のものをい
う。 In addition, the light-absorbing layer having a shape that matches the concave curved shape of the top of the convex portion has a convex curved shape toward the light-transmitting substrate, and the thickness of the light-absorbing layer is reduced at the center. Refers to the largest shape.
以下に本考案を図面を用いて詳細に説明する。 The present invention will be explained in detail below using the drawings.
第１図は本考案の一実施態様を示す断面図であ
る。第１図に示す透過型映写用スクリーン板用レ
ンチキユラーレンズ板Ａは、レンチキユラーレン
ズ形状１が片面に設けられ、他方の面の、前記レ
ンチキユラーレンズの非集光部相当箇所に頂部が
凹状の曲面形状である凸部２を有し、凸部２の頂
部には光吸収性組成物からなる光吸収性層３が設
けてある。 FIG. 1 is a sectional view showing one embodiment of the present invention. A lenticular lens plate A for a transmission type projection screen shown in FIG. 1 is provided with a lenticular lens shape 1 on one side, and a lenticular lens shape 1 is provided on the other side at a location corresponding to the non-light condensing part of the lenticular lens. It has a convex portion 2 having a concave curved top, and a light-absorbing layer 3 made of a light-absorbing composition is provided on the top of the convex portion 2 .
第２図は本考案の他の態様を示す断面図であつ
て、凸部２′は基板に近い方が巾が広く、凸部
２′の頂部に向かうほど巾が狭くなつている点が
第１のものと異なつている他は第１図のものと同
じである。この形状のものは凸部の肩の再現が容
易である。 FIG. 2 is a cross-sectional view showing another aspect of the present invention, and the main feature is that the protrusion 2' is wider near the substrate and becomes narrower toward the top of the protrusion 2'. It is the same as the one in Fig. 1 except that it is different from the one in Fig. 1. With this shape, it is easy to reproduce the shoulder of the convex part.
本考案の透過型映写用スクリーン板用レンチキ
ユラーレンズ板の材料及び製造法について次に説
明する。 The material and manufacturing method of the lenticular lens plate for a transmission type projection screen plate of the present invention will be explained below.
（光透過性基板）
光透過性基板としては透明性を有し、屈折率等
の光学的性能のすぐれているものであればいずれ
も使用しうる。工業生産上、各種成型技術の応用
しやすい透明性合成樹脂のシート若しくは板が好
ましい。これらシート若しくは板は、単層でも複
層であつてもよい。透明性合成樹脂としてポリメ
タクリル酸メチル等のアクリル樹脂、ポリ塩化ビ
ニル樹脂、ポリカーボネート樹脂、ポリスチレン
樹脂、セルロース樹脂等を挙げることができる。
又、これらの透明性合成樹脂にはガラスビーズ、
シリカ等の光拡散材を加えてもよく、又、着色剤
や充填剤等、各種の添加剤を加えてもよく、以上
の透明性合成樹脂を主体とする組成物を公知の押
し出し、キヤステイング等によりシート若しくは
板とする。(Light Transparent Substrate) Any substrate can be used as long as it is transparent and has excellent optical performance such as refractive index. In terms of industrial production, transparent synthetic resin sheets or plates are preferred because they can be easily applied to various molding techniques. These sheets or plates may have a single layer or multiple layers. Examples of transparent synthetic resins include acrylic resins such as polymethyl methacrylate, polyvinyl chloride resins, polycarbonate resins, polystyrene resins, and cellulose resins.
In addition, these transparent synthetic resins contain glass beads,
A light diffusing material such as silica may be added, and various additives such as a coloring agent and a filler may also be added. etc. to make a sheet or board.
（成形）
上記光透過性基板の成形には種々の方法があ
る。例えば押し出し若しくはカレンダー法により
一旦作製されたシート若しくは板のロール成形や
プレス成形、異型押し出し成形、或いはキヤステ
イング等である。これらの成形は光透過性基板の
作製時若しくは作製後に適宜に行なわれるが、押
し出し若しくはカレンダー法によりシート若しく
は板を作製しつつ、直ちにロール成形する方式が
工業的に有利である。ロール成形を行なうには所
定のレンズ形状の逆型形状を、金属、プラスチツ
ク、ゴム、木質系、複合材料等の表面に、機械切
剤、電解加工、放電加工、レーザー加工、エツチ
ングないし電鋳等により設けてなるロールを用
い、又、頂部が凹状の曲面形状をなしている凸部
を成形するためのロールも、前記と同様に作製し
たものを用いることができる。(Molding) There are various methods for molding the above-mentioned light-transmitting substrate. Examples include roll forming, press forming, profile extrusion forming, or casting of a sheet or plate once produced by extrusion or calendering. These moldings are carried out as appropriate during or after the production of the light-transmitting substrate, but it is industrially advantageous to immediately roll-form the sheet or plate while producing it by extrusion or calendaring. To perform roll forming, an inverted mold of a predetermined lens shape is formed on the surface of metal, plastic, rubber, wood, composite materials, etc. using mechanical cutting, electrolytic machining, electrical discharge machining, laser machining, etching or electroforming. In addition, a roll prepared in the same manner as described above can be used as a roll for forming a convex portion having a concave curved top.
以上説明した２種のロールはレンチキユラーレ
ンズの非集光部が凸部となるよう位置を合わせて
設置し、必要に応じ光透過性基板及び／又はロー
ルを加熱しつつ加圧することにより光透過性基板
を所定の形状に成形することができる。 The two types of rolls explained above are installed in such a way that the non-concentrating part of the lenticular lens becomes a convex part, and if necessary, the light-transmitting substrate and/or roll can be heated and pressurized to emit light. The transparent substrate can be molded into a predetermined shape.
（光吸収性層）
光吸収性層は光吸収性組成物を用いて前記凸部
の頂部の凹状の曲面形状の部分に充填して形成す
ることができる。光吸収性組成物は光透過性基板
の材質を考慮して選択されたベヒクルを含む公知
の塗料組成物ないしインキ組成物に光吸収性の黒
色ないし灰色等の顔料や艷消剤である、シリカ、
炭酸カルシウム等を添加して調製することができ
る。以上のような光吸収性組成物を前記凸部の頂
部の凹状の曲面形状の部分に充填するにはロール
コート、グラビア印刷、オフセツト印刷、グラビ
アオフセツト印刷、活版印刷、シルクスクリーン
印刷、転写印刷等によつて行なえる。これらの方
法による充填を効果的に行なうため凸部の頂部の
凹状の曲面形状の部分の深さは、凸部の高さより
小さい方が望ましく、凸部の高さの半分以下が好
ましい。(Light-absorbing layer) The light-absorbing layer can be formed by filling the concave curved portion at the top of the convex portion with a light-absorbing composition. The light-absorbing composition is a known coating composition or ink composition containing a vehicle selected in consideration of the material of the light-transmitting substrate, and a light-absorbing pigment such as black or gray, and silica, which is an erasing agent. ,
It can be prepared by adding calcium carbonate or the like. In order to fill the concave curved portion at the top of the convex portion with the light-absorbing composition as described above, roll coating, gravure printing, offset printing, gravure offset printing, letterpress printing, silk screen printing, transfer printing can be used. This can be done by etc. In order to effectively perform filling by these methods, the depth of the concave curved portion at the top of the convex portion is desirably smaller than the height of the convex portion, and preferably less than half the height of the convex portion.
以上の本考案によればエツジのシヤープな光吸
収性層が得やすく、又、光吸収性層の濃度も凹状
の曲面形状の深さによつて決まるので一定で、か
つ、高濃度とすることができる。 According to the present invention described above, it is easy to obtain a light-absorbing layer with sharp edges, and since the concentration of the light-absorbing layer is determined by the depth of the concave curved surface shape, the concentration can be kept constant and high. I can do it.
以上の本考案のレンチキユラーレンズ板はフレ
ネルレンズ等とくみあわせて透過型映写用スクリ
ーン板として使用するのに最適である。 The lenticular lens plate of the present invention described above is ideal for use as a transmission type projection screen plate in combination with a Fresnel lens or the like.
第１図及び第２図は本考案のレンチキユラーレ
ンズの形状を示す断面図である。
符号の説明、１……レンチキユラーレンズ、２
……凸部、３……光吸収性層。
1 and 2 are cross-sectional views showing the shape of the lenticular lens of the present invention. Explanation of symbols, 1... Lenticular lens, 2
...Convex portion, 3...Light-absorbing layer.
Claims (1)
ズ形状を有し、他方の面の前記レンチキユラーレ
ンズを通過する光源光が集光しない部分に前記基
板より突出する凸部を設け、該凸部の表面に光吸
収性層を有する透過型映写用スクリーン板用レン
チキユラーレンズ板において、前記凸部の頂面に
凹状の曲面形状部を設け、かつ、該曲面形状部に
は該曲面形状に整合する形状の光吸収性層が形成
されていることを特徴とする透過型映写用スクリ
ーン板用レンチキユラーレンズ板。 A light-transmissive substrate has a lenticular lens shape on one surface, and a convex portion protruding from the substrate is provided in a portion of the other surface where the light source light passing through the lenticular lens is not focused. In the lenticular lens plate for a transmission projection screen plate having a light-absorbing layer on the surface of the convex part, a concave curved part is provided on the top surface of the convex part, and the curved part has a concave curved part. A lenticular lens plate for a transmission type projection screen plate, characterized in that a light-absorbing layer having a shape matching the above is formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1982054965U JPS58157318U (en) | 1982-04-15 | 1982-04-15 | Lenticular lens plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1982054965U JPS58157318U (en) | 1982-04-15 | 1982-04-15 | Lenticular lens plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58157318U JPS58157318U (en) | 1983-10-20 |
| JPH046023Y2 true JPH046023Y2 (en) | 1992-02-19 |
Family
ID=30065572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1982054965U Granted JPS58157318U (en) | 1982-04-15 | 1982-04-15 | Lenticular lens plate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58157318U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5638035A (en) * | 1980-08-04 | 1981-04-13 | Sony Corp | Transmission type screen |
-
1982
- 1982-04-15 JP JP1982054965U patent/JPS58157318U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5638035A (en) * | 1980-08-04 | 1981-04-13 | Sony Corp | Transmission type screen |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58157318U (en) | 1983-10-20 |
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