JPH0249304A - Manufacture of beam regulating film or sheet - Google Patents
Manufacture of beam regulating film or sheetInfo
- Publication number
- JPH0249304A JPH0249304A JP19927088A JP19927088A JPH0249304A JP H0249304 A JPH0249304 A JP H0249304A JP 19927088 A JP19927088 A JP 19927088A JP 19927088 A JP19927088 A JP 19927088A JP H0249304 A JPH0249304 A JP H0249304A
- Authority
- JP
- Japan
- Prior art keywords
- sheet
- pattern
- liquid resin
- light
- numerous
- 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
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 8
- 230000001105 regulatory effect Effects 0.000 title abstract 2
- 239000011347 resin Substances 0.000 claims abstract description 17
- 229920005989 resin Polymers 0.000 claims abstract description 17
- 239000007788 liquid Substances 0.000 claims abstract description 16
- 238000005192 partition Methods 0.000 claims abstract description 10
- 230000013011 mating Effects 0.000 claims description 22
- 239000010408 film Substances 0.000 description 15
- 238000000034 method Methods 0.000 description 11
- 238000000465 moulding Methods 0.000 description 3
- 229920000515 polycarbonate Polymers 0.000 description 3
- 239000004417 polycarbonate Substances 0.000 description 3
- 238000006116 polymerization reaction Methods 0.000 description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000002648 laminated material Substances 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 229920006217 cellulose acetate butyrate Polymers 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000006082 mold release agent Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Finishing Walls (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、一方向からの特定光線のみを透過し、多方面
からの光線はこれを半透過、遮蔽もしくは視界外に反射
する機能を持った光線調整フィルムもしくはシートの製
造方法に関する。[Detailed Description of the Invention] (Industrial Application Field) The present invention has the function of transmitting only specific light rays from one direction, and semi-transmitting, blocking, or reflecting light rays from many directions out of sight. The present invention relates to a method of manufacturing a light beam control film or sheet.
（従来の技術）
従来、この種の光！ｓ調整フィルムもしくはシートは、
透光層と、この透光層の肉厚方向に埋設された多数の遮
光層（ルーバー）とから構成されている。そして、かか
る光線調整フィルムもしくはシートは、透明層と遮光層
（ルーパー）とを交互に多数積層し、この積層素材を積
層面と直交する方向にフィルム状もしくはシート状に薄
くスライスして製造されている（特開昭５３−７０８３
４号公報、特開昭５８−６６２０３号公報、特開昭６１
−１７９００６号公報参照）。(Conventional technology) Conventionally, this kind of light! s adjustment film or sheet,
It consists of a light-transmitting layer and a large number of light-shielding layers (louvers) embedded in the thickness direction of the light-transmitting layer. Such a light ray adjustment film or sheet is manufactured by alternately laminating a large number of transparent layers and light blocking layers (loopers), and slicing this laminated material into thin films or sheets in a direction perpendicular to the laminated surface. (Unexamined Japanese Patent Publication No. 53-7083
Publication No. 4, JP-A-58-66203, JP-A-61
(Refer to Publication No.-179006).
（発明が解決しようとする課題）
ところが、上記従来の製造方法にあっては、透光層と遮
光層との積層素材を薄くスライスするものであるから、
コスト高となり、またスライスによる成形歪みが大きく
、しかも厚み精度が悪く再現性が劣る。さらに、スライ
サーによる制約のため大面積化が困難である。(Problem to be Solved by the Invention) However, in the conventional manufacturing method described above, since the laminated material of the light-transmitting layer and the light-blocking layer is sliced thinly,
The cost is high, molding distortion due to slicing is large, thickness accuracy is poor, and reproducibility is poor. Furthermore, it is difficult to increase the area due to restrictions imposed by the slicer.
本発明は、上記従来の問題点を解決するものであり、そ
の目的とするところは、大面積化が可能で且つ厚み精度
及び再現性がよく、高品質で廉価な光線調整フィルムも
しくはシートの製造方法を提供することにある。The present invention solves the above-mentioned conventional problems, and its purpose is to manufacture a high-quality, inexpensive light beam control film or sheet that can be made into a large area and has good thickness accuracy and reproducibility. The purpose is to provide a method.
（課題を解決するための手段）
本発明の光線調整フィルムもしいはシートの製造方法は
、平滑面を有する合せ型部分と高さが略同じ多数の仕切
壁を有する合せ型部分とからなる合せ型を用い、この合
せ型内の空間に透明液状樹脂を注入し充填し固化させた
後脱型して、一面が平滑で他面に上記仕切壁によって形
成された多数の凹溝を有する透光層を成形し、この透光
層の凹溝に着色液状樹脂を注入し充填し固化させて、多
数の遮光層を形成させることを特徴とし、そのことによ
り上記の目的が達成される。(Means for Solving the Problems) The method for producing a light ray adjustment film or sheet of the present invention provides a method for producing a light beam control film or sheet, which comprises a mating mold part having a smooth surface and a mating mold part having a large number of partition walls having substantially the same height. Using a mold, a transparent liquid resin is injected and filled into the space within the mating mold, allowed to solidify, and then removed from the mold to form a transparent material having one side smooth and the other side having numerous grooves formed by the partition walls. The method is characterized in that a large number of light-shielding layers are formed by molding a layer and injecting and filling colored liquid resin into the grooves of the light-transmitting layer and solidifying the resin, thereby achieving the above object.
（作用）
本発明方法は、合せ型を用い、液状樹脂の注入、充填、
固化により行なわれるので、従来のスライス法に比べ、
成形が容易で厚み精度が良く、成形歪みも少ない。また
、スライサーによる制約がなく、大面積の成形も容易で
ある。(Function) The method of the present invention uses a mating mold to inject, fill, and fill the liquid resin.
Because it is performed by solidification, compared to the traditional slicing method,
It is easy to mold, has good thickness accuracy, and has little molding distortion. Furthermore, there is no restriction due to a slicer, and it is easy to mold a large area.
（実施例） 以下に、本発明方法の実施例について説明する。(Example) Examples of the method of the present invention will be described below.
本発明方法は、第１図に示す合せ型１０を用いて行なわ
れる。この合せ型１０は、平滑面１１を有する合せ型部
分１２と、高さが略同じ多数の仕切壁１３を有する合せ
型部分１４とからなる。そして、両方の合せ型部分１２
と１４とを合せた際に、空間１５が生じるようになされ
ている。The method of the present invention is carried out using a mating mold 10 shown in FIG. This mating mold 10 consists of a mating mold part 12 having a smooth surface 11 and a mating mold part 14 having a large number of partition walls 13 having substantially the same height. And both mating mold parts 12
When and 14 are combined, a space 15 is created.
上記の合せ型部分Ｉ４は、通常、金属、セラミックス等
からなる薄板に、研磨、切削、蝕刻等の手段により、仕
切壁Ｉ３を等間隔に平行状に形成して作られるが、仕切
壁１３は平滑面に対して垂直である必要はなく、斜めに
形成することもできる。また、仕切壁１３は格子状に形
成することもできる。合せ型部分１２も合せ型部分１４
と同様な材料から作られる。The above-mentioned mating part I4 is usually made by forming parallel partition walls I3 at equal intervals on a thin plate made of metal, ceramics, etc. by means of polishing, cutting, etching, etc. It does not have to be perpendicular to the smooth surface, but can also be formed obliquely. Moreover, the partition wall 13 can also be formed in a lattice shape. The mating mold part 12 and the mating mold part 14
made from similar materials.
合せ型部分１２と１４とを合せ、合せ型１０内の空間１
５に重合性アクリル、液状化されたポリカーボネートな
どの透明液状樹脂を注入し充填する。The mating mold parts 12 and 14 are combined, and the space 1 in the mating mold 10 is
5 is injected with a transparent liquid resin such as polymerizable acrylic or liquefied polycarbonate.
そして加熱重合、冷却等の手段により固化させた後合せ
型１０を開いて脱型する。合せ型１０の内面には、シリ
コン離型剤等により離型処理をしておくのが好ましい。After solidifying by heating polymerization, cooling, or other means, the laminated mold 10 is opened and demolded. The inner surface of the mating mold 10 is preferably subjected to mold release treatment using a silicone mold release agent or the like.
かくして、第２図に示すように、一面が平滑で他面に仕
切壁１３によって形成された多数の凹溝２１を有する透
光層２０が成形される。透光層２０の厚さは２０〜１０
００μｍが好ましり、５０〜８００μｍがより好ましい
。また、凹溝２１の幅は出来るだけ狭い方がよく、５０
μｍ以下が好ましい。In this way, as shown in FIG. 2, a light-transmitting layer 20 is formed which has one smooth surface and a large number of grooves 21 formed by the partition walls 13 on the other surface. The thickness of the transparent layer 20 is 20 to 10
00 μm is preferable, and 50 to 800 μm is more preferable. In addition, it is better that the width of the groove 21 is as narrow as possible;
It is preferably less than μm.
次いで、上記透光層２０の多数の凹溝２１に、着色液状
樹脂を注入し充填する。そして、加熱重合、紫外線照射
重合、冷却等の手段により固化させる。上記の着色液状
樹脂としては、重合性アクリル、液状化されたポリカー
ボネートなどの透明液状樹脂に、カーボンブラックの如
き顔料、ダイレクトブランク１００の如き染料を含有さ
せたものが用いられる。かかる着色液状樹脂の粘度は１
０００ｃｐｓ以下とするのが好ましい。着色液状樹脂の
不透明度は完全に不透明でなくてもよく、必要に応して
適宜設定される。Next, colored liquid resin is injected into the many grooves 21 of the light-transmitting layer 20 to fill them. Then, it is solidified by means such as heating polymerization, ultraviolet irradiation polymerization, and cooling. As the colored liquid resin, a transparent liquid resin such as polymerizable acrylic or liquefied polycarbonate containing a pigment such as carbon black or a dye such as Direct Blank 100 is used. The viscosity of this colored liquid resin is 1
000 cps or less is preferable. The opacity of the colored liquid resin does not need to be completely opaque, and is appropriately set as necessary.
かくして、第３図に示すように、透光層２０と、この透
光層２０の肉厚方向に一定の間隔をおいて埋設された多
数の遮光層（ルーバー）３０とから構成された光線調整
フィルムもしくはシート４０が得られる。Thus, as shown in FIG. 3, the light beam adjustment system is composed of a light-transmitting layer 20 and a large number of light-shielding layers (louvers) 30 embedded at regular intervals in the thickness direction of the light-transmitting layer 20. A film or sheet 40 is obtained.
なお、第４図に示すように、遮光層３０の露出面、即ち
着色液状樹脂を注入した面に、アクリル系樹脂、ポリカ
ーボネート、セルロースアセテートブチレートなどの合
成樹脂フィルムもしくはシート、薄肉のガラス板などの
透明フィルムもしくはシートを接着剤や熱溶着により接
着されるのが好ましい。このような透明フィルムもしく
はシートを接着することにより、遮光層３０の露出面が
保護されるとともに、その表面が平滑化される。As shown in FIG. 4, the exposed surface of the light shielding layer 30, that is, the surface injected with the colored liquid resin, is covered with a synthetic resin film or sheet such as acrylic resin, polycarbonate, cellulose acetate butyrate, a thin glass plate, etc. It is preferable that a transparent film or sheet is bonded by adhesive or heat welding. By adhering such a transparent film or sheet, the exposed surface of the light shielding layer 30 is protected and the surface is smoothed.
（発明の効果）
上述の通り、本発明方法は、合せ型を用い、液状樹脂の
注入、充填、固化により行なわれるので、従来のスライ
ス法に比べ、大面積化が可能で且つ厚み精度及び再現性
のよい高品質の光線調整フィルムもしくはシートを低コ
ストで容易に製造することができる。(Effects of the Invention) As mentioned above, the method of the present invention uses a mating mold and is performed by injecting, filling, and solidifying liquid resin, so compared to the conventional slicing method, it is possible to increase the area and improve thickness accuracy and reproducibility. A high quality light control film or sheet with good properties can be easily produced at low cost.
本発明方法により得られる光線調整フィルムもしくはシ
ートは、自動車の計器盤、各種ライトの視野角調整など
に好適に用いられる。The light beam adjustment film or sheet obtained by the method of the present invention is suitably used for adjusting the viewing angle of automobile instrument panels, various lights, and the like.
第１図は本発明方法に用いる合せ型の断面図、第２図は
合せ型より脱型した透光層の断面図、第３図及び第４図
は本発明方法により得られた光線調整フィルムもしくは
シートの断面図である。
１〇−合せ型、１１−平滑面、１２−合せ型部分、１３
−仕切壁、１４−合せ型部分、１５−空間、２０−・・
透光層、２１−凹溝、３０−遮光層、４〇−光線調整フ
ィルムもしくはシート、５〇−透明フィルムもしくはシ
ート。
特許出願人 積水化学工業株式会社
代表者 廣１）馨Figure 1 is a cross-sectional view of a mating mold used in the method of the present invention, Figure 2 is a cross-sectional view of a transparent layer removed from the mold, and Figures 3 and 4 are light adjustment films obtained by the method of the present invention. Alternatively, it is a sectional view of the sheet. 10-Mating type, 11-Smooth surface, 12-Mating type part, 13
- partition wall, 14 - mating part, 15 - space, 20 -...
Transparent layer, 21 - groove, 30 - light shielding layer, 40 - light adjustment film or sheet, 50 - transparent film or sheet. Patent applicant: Sekisui Chemical Co., Ltd. Representative Hiroshi1) Kaoru
Claims (1)
切壁を有する合せ型部分とからなる合せ型を用い、この
合せ型内の空間に透明液状樹脂を注入し充填し固化させ
た後脱型して、一面が平滑で他面に上記仕切壁によって
形成された多数の凹溝を有する透光層を成形し、この透
光層の凹溝に着色液状樹脂を注入し充填し固化させて、
多数の遮光層を形成させることを特徴とする光線調整フ
ィルムもしくはシートの製造方法。1. Using a mating mold consisting of a mating mold part with a smooth surface and a mating mold part having a large number of partition walls of approximately the same height, a transparent liquid resin was injected into the space inside this mating mold, filled, and solidified. After demolding, a transparent layer is formed that has one smooth surface and a large number of grooves formed by the partition walls on the other side, and colored liquid resin is injected into the grooves of this transparent layer, filled, and solidified. Let me,
A method for producing a light adjusting film or sheet, which comprises forming a large number of light shielding layers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19927088A JPH0249304A (en) | 1988-08-09 | 1988-08-09 | Manufacture of beam regulating film or sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19927088A JPH0249304A (en) | 1988-08-09 | 1988-08-09 | Manufacture of beam regulating film or sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0249304A true JPH0249304A (en) | 1990-02-19 |
Family
ID=16404995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19927088A Pending JPH0249304A (en) | 1988-08-09 | 1988-08-09 | Manufacture of beam regulating film or sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0249304A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006140126A (en) * | 2004-05-24 | 2006-06-01 | Nec Corp | Planar light source, display device, mobile terminal device, and light direction changing element |
| US7499123B2 (en) | 2004-05-24 | 2009-03-03 | Nec Corporation | Planar light source, display device, portable terminal device, and ray direction switching element |
-
1988
- 1988-08-09 JP JP19927088A patent/JPH0249304A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006140126A (en) * | 2004-05-24 | 2006-06-01 | Nec Corp | Planar light source, display device, mobile terminal device, and light direction changing element |
| US7499123B2 (en) | 2004-05-24 | 2009-03-03 | Nec Corporation | Planar light source, display device, portable terminal device, and ray direction switching element |
| US7630026B2 (en) | 2004-05-24 | 2009-12-08 | Nec Corporation | Planar light source, display device, portable terminal device, and ray direction switching element |
| US7728925B2 (en) | 2004-05-24 | 2010-06-01 | Nec Corporation | Light source, display device, portable terminal device, and ray direction switching element |
| US7929077B2 (en) | 2004-05-24 | 2011-04-19 | Nec Corporation | Light source, display device, portable terminal device, and ray direction switching element |
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