JPS6115808B2 - - Google Patents
Info
- Publication number
- JPS6115808B2 JPS6115808B2 JP55053947A JP5394780A JPS6115808B2 JP S6115808 B2 JPS6115808 B2 JP S6115808B2 JP 55053947 A JP55053947 A JP 55053947A JP 5394780 A JP5394780 A JP 5394780A JP S6115808 B2 JPS6115808 B2 JP S6115808B2
- Authority
- JP
- Japan
- Prior art keywords
- fresnel lens
- mold
- endless metal
- film
- belt
- 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
- 238000000465 moulding Methods 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 6
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 239000006188 syrup Substances 0.000 claims description 4
- 235000020357 syrup Nutrition 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 238000003475 lamination Methods 0.000 claims 1
- 238000000034 method Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 239000004793 Polystyrene Substances 0.000 description 1
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 1
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
- B32B37/15—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state
- B32B37/153—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state at least one layer is extruded and immediately laminated while in semi-molten state
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/44—Compression means for making articles of indefinite length
- B29C43/48—Endless belts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D11/00—Producing optical elements, e.g. lenses or prisms
- B29D11/00009—Production of simple or compound lenses
- B29D11/00269—Fresnel lenses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
- B29C43/021—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles characterised by the shape of the surface
- B29C2043/023—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles characterised by the shape of the surface having a plurality of grooves
- B29C2043/025—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles characterised by the shape of the surface having a plurality of grooves forming a microstructure, i.e. fine patterning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/44—Compression means for making articles of indefinite length
- B29C43/48—Endless belts
- B29C2043/483—Endless belts cooperating with a second endless belt, i.e. double band presses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/22—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of indefinite length
- B29C43/222—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of indefinite length characterised by the shape of the surface
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Ophthalmology & Optometry (AREA)
- Overhead Projectors And Projection Screens (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
- Transforming Electric Information Into Light Information (AREA)
Description
【発明の詳細な説明】
本発明は、リニア或いは球面フレネルレンズを
使用し、表面に光拡散性を有するフイルム或いは
光拡散性、光吸収性、表面保護性を有するフイル
ムをラミネートした透過型テレビ用スクリーンの
製造方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention uses a linear or spherical Fresnel lens and is laminated with a film having light diffusing properties or a film having light diffusing properties, light absorbing properties, and surface protection properties for a transmissive television. The present invention relates to a method for manufacturing a screen.
従来フレネルレンズを使用した透過型テレビ用
スクリーンの製法としては、アクリル板よりなる
スクリーン部材を成形用金型で熱圧成形するとい
う方法が用いられているが、この方法は枚葉にて
成型する為、作業能率が非常に悪く、また熱圧成
形時のエア抜き、金型からの剥離が煩雑である等
の問題があり、工業生産的に不安定な要素が多い
のが実状であつた。 Conventionally, the method used to manufacture transmissive television screens using Fresnel lenses is to heat-press a screen member made of an acrylic plate using a mold, but this method involves molding in single sheets. Therefore, the work efficiency is very poor, and there are problems such as air bleeding during hot-press molding and peeling from the mold are complicated, and the actual situation is that there are many unstable factors in industrial production.
そこで、本発明者等はすでに、表面にフレネル
レンズ成形用の金型が形成されたローラーにスク
リーン部材を供給し、このローラーで押圧成形し
て、フレネルレンズを連続的に量産でき工業生産
的にも安定した製造方法を提案している。 Therefore, the present inventors have already supplied a screen member to a roller with a mold for molding Fresnel lenses formed on its surface, and press-molded it with this roller, thereby making it possible to continuously mass-produce Fresnel lenses. We also propose a stable manufacturing method.
しかしながら、このものは金型がロール状であ
るため、これがアクリル板に接する面積が狭く、
また圧縮寺間も短くて金型再現性が必ずしも良く
ないという憾がある。 However, since the mold is roll-shaped, the area in contact with the acrylic plate is small.
Moreover, the compression temple is short and the reproducibility of the mold is not necessarily good.
本発明は、この点を解決すべくなされたもので
あつて、フレネルレンズ成形用の金型をエンドレ
スのベルト状とすることにより、スクリーン部材
に対し、プレス圧及びその時間を充分に与えて、
金型再現性の向上を図り、また同時にこれに装着
するフイルムの接着性の向上をも図つたものであ
る。 The present invention was made to solve this problem, and by making the mold for molding a Fresnel lens into an endless belt shape, sufficient press pressure and time can be applied to the screen member.
The aim is to improve the reproducibility of the mold, and at the same time to improve the adhesion of the film attached to the mold.
以下図面に基いて本発明の一実施例について説
明する。 An embodiment of the present invention will be described below based on the drawings.
第１図は、本発明の説明図である。 FIG. 1 is an explanatory diagram of the present invention.
１は材質をステンレスとしたエンドレス金属ベ
ルトであつて、表面１ａにフレネルレンズ成形用
金型が形成されている。フレネルレンズ成形用金
型は第２図に示すような球面フレネルレンズ、或
いは第３図及び第４図に示すようなリニアフレネ
ルレンズの形状に応じて、これの逆型となつてい
る。即ちベルト１は所望形状のレンズに応じて
種々形状の金型が形成されたものを任意に採用し
得るものである。 1 is an endless metal belt made of stainless steel, and a mold for molding a Fresnel lens is formed on the surface 1a. The mold for molding a Fresnel lens is an inverse mold depending on the shape of a spherical Fresnel lens as shown in FIG. 2 or a linear Fresnel lens as shown in FIGS. 3 and 4. That is, the belt 1 can be any belt having molds of various shapes formed therein depending on the desired shape of the lens.
ベルト１は、ローラ３，３間を矢印の方向に循
環し、またベルト１に対向して配設されたベルト
２も、ベルト１同様ステンレス製でであつて、ロ
ーラ３，３間を矢印方向に循環するようになつて
いる。 The belt 1 circulates between the rollers 3 and 3 in the direction of the arrow, and the belt 2 disposed opposite to the belt 1 is also made of stainless steel like the belt 1, and circulates between the rollers 3 and 3 in the direction of the arrow. It has become a cycle.
これ等２つのベルト１，２の内側には、スクリ
ーン部材４及びフイルム５をプレスする側に複数
個の圧ローラー６が配設されており、又複数のベ
ルトヒーター７が配設されている。圧ローラー６
及びベルトヒーター７の個数は適宜選定すること
が出来る。 Inside these two belts 1 and 2, a plurality of pressure rollers 6 are arranged on the side where the screen member 4 and the film 5 are pressed, and a plurality of belt heaters 7 are arranged. pressure roller 6
And the number of belt heaters 7 can be selected as appropriate.
本発明方法は、以上のようなベルト１，２間に
スクリーン部材を押出機８から軟化状態にある板
状で、或いは図示しないアクリルシラツプタンク
からシラツプ状態で供給するもので説明の便宜上
図示した、板状で供給されるスクリーン部材４
は、金型が形成されているベルト１側に供給さ
れ、その金型に応じた第２，３，４図に示すよう
なフレネルレンズが成形され、その反対側の面に
は、光拡散性等を有するフイルム５が、ベルト２
側に供給されて、圧着される。 In the method of the present invention, the screen member is supplied between the belts 1 and 2 in the form of a softened plate from the extruder 8 or in the form of syrup from an acrylic syrup tank (not shown). Screen member 4 supplied in plate shape
is supplied to the side of the belt 1 where a mold is formed, and a Fresnel lens as shown in Figures 2, 3, and 4 according to the mold is molded, and a light-diffusing lens is formed on the opposite surface. The film 5 having
It is supplied to the side and crimped.
即ち、本発明方法は、いまだ軟化状態にあるス
クリーン部材４を、ベルト１，２間に供給し、ベ
ルト１をこれがスクリーン部材４のプレス位置Ａ
に循環して行く前でヒーター７により熱してお
き、この熱せられたベルト１でプレスの進行過程
でしだいに冷却して、圧力及びその時間を充分に
与え、金型再現性のよいフレネルレンズを連続的
にスムーズに生産することの出来るもので、又、
同様にベルト２側に供給されるフイルム５も、ヒ
ーター７により熱せられたベルト２により圧力及
びその時間が充分に与えられて、スクリーン部材
のフレネルレンズが形成される面の反対側に確実
にラミネートされるものである。 That is, in the method of the present invention, the screen member 4, which is still in a softened state, is supplied between the belts 1 and 2, and the belt 1 is moved to the press position A of the screen member 4.
It is heated by a heater 7 before being circulated to the press, and is gradually cooled down by the heated belt 1 during the press process to apply sufficient pressure and time to create a Fresnel lens with good mold reproducibility. It can be produced continuously and smoothly, and
Similarly, the film 5 supplied to the belt 2 side is given enough pressure and time by the belt 2 heated by the heater 7 to ensure that it is laminated on the opposite side of the screen member to the side where the Fresnel lens is formed. It is something that will be done.
以上のようにして生産されるスクリーン部材は
第２，３，４図ａ，ｂに示すように、連続した結
合状態で得られるものであつて、最終的には切断
線Ｂに沿つてカツテイングされ個々のスクリーン
となる。 The screen member produced in the above manner is obtained in a continuous bonded state as shown in Figures 2, 3, and 4 a and b, and is finally cut along cutting line B. It becomes an individual screen.
スクリーン部材としては、アクリルの他に
ABS、ポリスチレン、ポリカーボネート、PVC
の何れかを採用するこてが出来、又、フイルム５
は、少なくとも光拡散性を有することが必要なも
のであるが、この他に光吸収性、表面保護性を兼
ね備えているものとすることも出来るものであ
る。 In addition to acrylic, screen materials are also available.
ABS, polystyrene, polycarbonate, PVC
It is possible to make a trowel that adopts either of
Although it is necessary to have at least light diffusing properties, it is also possible to have light absorbing properties and surface protection properties.
以上何れにしても、本発明方法は、二つのベル
ト間にスクリーン部材とフイルタを供給して透過
型テレビ用スクリーンを製造するものであつて、
スクリーン部材への圧力及びその時間を充分に与
えてフレネルレンズを形成し、またフイルムをラ
ミネートするものであるから金型再現性のよい、
フイルムが確実にラミネートされたスクリーンを
連続的に生産することが出来るという特徴を有す
るものである。 In any case, the method of the present invention is for manufacturing a transmission type television screen by supplying a screen member and a filter between two belts,
Since the Fresnel lens is formed by applying sufficient pressure and time to the screen member, and the film is laminated, mold reproducibility is good.
This method is characterized in that it is possible to continuously produce screens in which films are reliably laminated.
第１図は本発明方法の説明図、第２，３ａ，ｂ
図は各々本発明方法により製造される透過型テレ
ビ用スクリーンの平面図と正面図、第４ａ，ｂ図
は同上平面図と側面図である。
１，２……ベルト、３……ローラ、４……スク
リーン部材、５……フイルム、６……圧ローラ
ー、７……ベルトヒーター、８……押出機。
Fig. 1 is an explanatory diagram of the method of the present invention, Fig. 2, 3a, b
The figures are a plan view and a front view of a transmission type television screen manufactured by the method of the present invention, respectively, and Figures 4a and 4b are a plan view and a side view of the same. 1, 2... Belt, 3... Roller, 4... Screen member, 5... Film, 6... Pressure roller, 7... Belt heater, 8... Extruder.
Claims (1)
たエンドレス金属ベルトと、これに対向して配設
されたエンドレス金属ベルトとの間に、スクリー
ン部材を押出機からこれが軟化状態にある板状
で、或はアクリルシラツプタンクからシラツプ状
態でフレネルレンズ金型が形成されたエンドレス
金属ベルト側に供給するとともに、光拡散性を有
するフイルム或いは光拡散性と光吸収性と表面保
護性を有するフイルムをフレネルレンズ成形用金
型が形成されていないエンドレス金属ベルト側に
供給し、之等２つのエンドレス金属ベルトの間を
通過させることによりフレネルレンズの成形とフ
イルムラミネートを同時に行なうことを特徴とす
る透過型テレビ用スクリーンの製造方法。1. Between an endless metal belt with a Fresnel lens forming mold formed on its surface and an endless metal belt disposed opposite thereto, a screen member is placed in a softened plate shape from an extruder; Alternatively, the syrup is supplied from an acrylic syrup tank to the endless metal belt on which the Fresnel lens mold is formed, and a film having light diffusing properties or a film having light diffusing properties, light absorbing properties, and surface protection properties is also supplied. A transmission type characterized in that Fresnel lens molding and film lamination are simultaneously performed by supplying the material to the endless metal belt side on which the Fresnel lens molding mold is not formed and passing it between two endless metal belts. A method of manufacturing a television screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5394780A JPS56148525A (en) | 1980-04-22 | 1980-04-22 | Manufacture of permeation-type television screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5394780A JPS56148525A (en) | 1980-04-22 | 1980-04-22 | Manufacture of permeation-type television screen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56148525A JPS56148525A (en) | 1981-11-18 |
| JPS6115808B2 true JPS6115808B2 (en) | 1986-04-25 |
Family
ID=12956909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5394780A Granted JPS56148525A (en) | 1980-04-22 | 1980-04-22 | Manufacture of permeation-type television screen |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56148525A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2823016B2 (en) * | 1986-12-25 | 1998-11-11 | ソニー株式会社 | Method of manufacturing transmission screen |
| JP4975675B2 (en) * | 2008-04-04 | 2012-07-11 | 株式会社日本製鋼所 | Manufacturing method and manufacturing apparatus of molded body |
-
1980
- 1980-04-22 JP JP5394780A patent/JPS56148525A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS56148525A (en) | 1981-11-18 |
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