JPH02157702A - Production of lens sheet - Google Patents
Production of lens sheetInfo
- Publication number
- JPH02157702A JPH02157702A JP63311051A JP31105188A JPH02157702A JP H02157702 A JPH02157702 A JP H02157702A JP 63311051 A JP63311051 A JP 63311051A JP 31105188 A JP31105188 A JP 31105188A JP H02157702 A JPH02157702 A JP H02157702A
- Authority
- JP
- Japan
- Prior art keywords
- lens
- transparent resin
- resin substrate
- curing type
- mold
- 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 11
- 239000011347 resin Substances 0.000 claims abstract description 45
- 229920005989 resin Polymers 0.000 claims abstract description 45
- 239000000758 substrate Substances 0.000 claims abstract description 25
- 239000007788 liquid Substances 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 9
- 230000001678 irradiating effect Effects 0.000 claims abstract description 7
- 229920003002 synthetic resin Polymers 0.000 abstract description 3
- 239000000057 synthetic resin Substances 0.000 abstract description 3
- 229910052751 metal Inorganic materials 0.000 abstract description 2
- 239000002184 metal Substances 0.000 abstract description 2
- 238000003848 UV Light-Curing Methods 0.000 abstract 5
- 230000001070 adhesive effect Effects 0.000 abstract 1
- VOBUAPTXJKMNCT-UHFFFAOYSA-N 1-prop-2-enoyloxyhexyl prop-2-enoate Chemical compound CCCCCC(OC(=O)C=C)OC(=O)C=C VOBUAPTXJKMNCT-UHFFFAOYSA-N 0.000 description 4
- 229920000297 Rayon Polymers 0.000 description 4
- 239000000113 methacrylic resin Substances 0.000 description 4
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 3
- 229910052753 mercury Inorganic materials 0.000 description 3
- HCLJOFJIQIJXHS-UHFFFAOYSA-N 2-[2-[2-(2-prop-2-enoyloxyethoxy)ethoxy]ethoxy]ethyl prop-2-enoate Chemical compound C=CC(=O)OCCOCCOCCOCCOC(=O)C=C HCLJOFJIQIJXHS-UHFFFAOYSA-N 0.000 description 2
- 150000001252 acrylic acid derivatives Chemical class 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- OMIGHNLMNHATMP-UHFFFAOYSA-N 2-hydroxyethyl prop-2-enoate Chemical compound OCCOC(=O)C=C OMIGHNLMNHATMP-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 1
- 229910001369 Brass Inorganic materials 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- DAKWPKUUDNSNPN-UHFFFAOYSA-N Trimethylolpropane triacrylate Chemical compound C=CC(=O)OCC(CC)(COC(=O)C=C)COC(=O)C=C DAKWPKUUDNSNPN-UHFFFAOYSA-N 0.000 description 1
- IAXXETNIOYFMLW-GYSYKLTISA-N [(1r,3r,4r)-4,7,7-trimethyl-3-bicyclo[2.2.1]heptanyl] 2-methylprop-2-enoate Chemical compound C1C[C@@]2(C)[C@H](OC(=O)C(=C)C)C[C@@H]1C2(C)C IAXXETNIOYFMLW-GYSYKLTISA-N 0.000 description 1
- HVVWZTWDBSEWIH-UHFFFAOYSA-N [2-(hydroxymethyl)-3-prop-2-enoyloxy-2-(prop-2-enoyloxymethyl)propyl] prop-2-enoate Chemical compound C=CC(=O)OCC(CO)(COC(=O)C=C)COC(=O)C=C HVVWZTWDBSEWIH-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- UHESRSKEBRADOO-UHFFFAOYSA-N ethyl carbamate;prop-2-enoic acid Chemical class OC(=O)C=C.CCOC(N)=O UHESRSKEBRADOO-UHFFFAOYSA-N 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- ACCCMOQWYVYDOT-UHFFFAOYSA-N hexane-1,1-diol Chemical compound CCCCCC(O)O ACCCMOQWYVYDOT-UHFFFAOYSA-N 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000010899 nucleation Methods 0.000 description 1
- DXGLGDHPHMLXJC-UHFFFAOYSA-N oxybenzone Chemical compound OC1=CC(OC)=CC=C1C(=O)C1=CC=CC=C1 DXGLGDHPHMLXJC-UHFFFAOYSA-N 0.000 description 1
- 229960001173 oxybenzone Drugs 0.000 description 1
- 229920005668 polycarbonate resin Polymers 0.000 description 1
- 239000004431 polycarbonate resin Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- -1 polyol acrylates Chemical class 0.000 description 1
- 229920005990 polystyrene resin Polymers 0.000 description 1
- 239000006097 ultraviolet radiation absorber Substances 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、ビデオプロジェクションテレビのスクリーン
に用いられるフレネルレンズやレンチキュラーレンズ、
あるいは集光用の７レネルレンズ等のレンズｙ −トの
製造方法に関するものである。Detailed Description of the Invention (Industrial Application Field) The present invention relates to a Fresnel lens or a lenticular lens used in a video projection television screen,
Alternatively, the present invention relates to a method of manufacturing a lens such as a 7-lens lens for condensing light.
（従来の技術）
フレネルレンズやレンチキュラーレンズ等のレンズｙ）
を製造する場合、そのサイズが比較的小さく六景生産す
るときは合成樹脂の射出成形の方法が行われているが、
上述したスクリーン用や集光用で比較的大きなサイズの
レンズシートを製作する場合は、平板状のレンズ型に樹
脂板を当接し、これを加熱加圧してレンズ面を転写して
製造するのが一般的である。(Conventional technology) Lenses such as Fresnel lenses and lenticular lenses
When manufacturing Rokkei, which is relatively small in size, synthetic resin injection molding is used,
When manufacturing a relatively large lens sheet for the above-mentioned screen or light condensing purpose, it is best to press a resin plate against a flat lens mold and heat and press it to transfer the lens surface. Common.
ところがこの方法によるときは、加熱−冷却に要する時
間が長くか＼す、生産性を上げられないという難点があ
った。However, this method has disadvantages in that the time required for heating and cooling is long and productivity cannot be increased.
このため最近では、レンズ型と透明樹脂基板との間に紫
外線硬化型樹脂液を介在させ、紫外線を照射して硬化さ
せる方法が提案されてｂる（特開昭６１−１７７２１５
号公報参照）。For this reason, a method has recently been proposed in which an ultraviolet curable resin liquid is interposed between the lens mold and the transparent resin substrate and cured by irradiating ultraviolet rays (Japanese Patent Laid-Open No. 177215/1983).
(see publication).
（発明が解決しようとする課題）
しかしながら、上記の紫外線硬化型樹脂によってレンズ
部を形成する場合、透明樹脂基板との密着性が得られな
いことが多い。とυわけ透明樹脂基板として、透明性や
耐候性が優れこの種材料として好適なメタクリル樹脂は
、表面の活性が比較的乏しく、紫外線硬化型樹脂との密
着性を高めることが強く望まれていた。(Problems to be Solved by the Invention) However, when the lens portion is formed using the above-mentioned ultraviolet curable resin, adhesion to the transparent resin substrate is often not obtained. In particular, methacrylic resin, which is suitable for use as a transparent resin substrate due to its excellent transparency and weather resistance, has relatively low surface activity, and there was a strong desire to improve its adhesion with ultraviolet curable resins. .
本発明はこのような状況に鑑み、紫外線硬化型樹脂の形
成される透明樹脂基板の面を、予め活性エネルギーを照
射して処理することを見出し本発明を完成するに至った
ものである。In view of this situation, the present invention was completed by discovering that the surface of a transparent resin substrate on which an ultraviolet curable resin is to be formed can be treated by irradiating active energy in advance.
（課題を解決するための手段）
すなわち本発明は、上記の課題を達成しようとするもの
で、その要旨とするところは、透明樹脂基板とレンズ型
との間に紫外線硬化型樹脂液を介在させたのち紫外線を
照射して透明樹脂基板の少なくとも一面にレンズ部を形
成するレンズシートの製造方法において、透明樹脂基板
の紫外線硬化型樹脂液の接する面を、予め活性エネルギ
ー線を照射することを特徴とするレンズシートの製造方
法にある。(Means for Solving the Problems) That is, the present invention aims to achieve the above problems, and its gist is to interpose an ultraviolet curable resin liquid between a transparent resin substrate and a lens mold. A method for manufacturing a lens sheet in which a lens portion is formed on at least one surface of a transparent resin substrate by subsequently irradiating ultraviolet rays, characterized in that the surface of the transparent resin substrate in contact with the ultraviolet curable resin liquid is irradiated with active energy rays in advance. There is a method for manufacturing a lens sheet.
以下、本発明をさらに詳細に説明する。The present invention will be explained in more detail below.
本発明に使用する透明樹脂基板としては、上述したよう
にメタクリル樹脂板が適しているが、これ以外にもポリ
カーボネート樹脂板やポリスチレン樹脂板等が使用しう
る。As the transparent resin substrate used in the present invention, a methacrylic resin plate is suitable as described above, but other materials such as a polycarbonate resin plate and a polystyrene resin plate can also be used.
そして本発明は、このような透明樹脂基板の紫外線硬化
型樹脂液の接する面を、予め紫外線や電子線等の活性エ
ネルギー線を照射して活性化し、紫外線硬化型樹脂との
密着性を高めることを特徴とするものである。The present invention is to activate the surface of such a transparent resin substrate that comes into contact with the ultraviolet curable resin liquid by irradiating it with active energy rays such as ultraviolet rays or electron beams in advance to increase the adhesion with the ultraviolet curable resin. It is characterized by:
このときの活性エネルギー線の照射の条件は、使用する
活７性エネルギー線の種類および透明樹脂基板の種類に
よって一概忙は決められないが、例えばメタクリル樹脂
板に紫外線を照射する場合、この面が若干侵されるよう
な条件、すなわち３００ ｎｍ以下の波長も相当量透過
する高圧水銀灯や超高圧水銀灯を用いて短時間に処理す
るとよい。The conditions for irradiation with active energy rays at this time cannot be completely determined depending on the type of active energy rays used and the type of transparent resin substrate, but for example, when irradiating a methacrylic resin board with ultraviolet rays, this surface It is preferable to perform the treatment in a short time under conditions that are slightly harmful, that is, using a high-pressure mercury lamp or an ultra-high-pressure mercury lamp that transmits a considerable amount of wavelengths of 300 nm or less.
以上のようにして得た透明樹脂基板とレンズ型とを対設
し、この間に紫外線硬化型樹脂液を介在させ、次いで紫
外線を照射させるが、この場合のレンズ型としてはフレ
ネルレンズ、レンチキュラーレンズあるいはプライアイ
を与える面をもった金属や合成樹脂製の型を用いること
ができる。The transparent resin substrate obtained as described above and a lens mold are placed opposite each other, an ultraviolet curable resin liquid is interposed between them, and ultraviolet rays are then irradiated. In this case, the lens mold may be a Fresnel lens, a lenticular lens or A mold made of metal or synthetic resin and having a surface that provides a ply eye can be used.
また紫外線硬化型樹脂としては、特に限定され表いが、
一般に用いられているエポキシアクリレート系、ウレタ
ンアクリレート系、ポリエステルアクリレート系、ポリ
オールアクリレート系等が使用しうる。そして同時忙使
用される反応性種釈モノマーは、１つあるいはそれ以上
の反応性モノ、ジあるいは多官能アクリル系七ツマ−１
例えばペンタエリスリトールトリアクリレート、トリメ
チロールプロパントリアクリレート、ヘキサンジオール
ジアクリレート、ヘキサンジオールジアクリレート、テ
トラエチレングリコールジアクリレート、イソホルニル
アクリレート等が使用しうる。In addition, as ultraviolet curable resins, although there are particular limitations,
Commonly used epoxy acrylates, urethane acrylates, polyester acrylates, polyol acrylates, etc. can be used. and the reactive seeding monomers used simultaneously include one or more reactive mono-, di-, or polyfunctional acrylic monomers.
For example, pentaerythritol triacrylate, trimethylolpropane triacrylate, hexanediol diacrylate, hexanediol diacrylate, tetraethylene glycol diacrylate, isoformyl acrylate, etc. can be used.
そしてこれらの紫外線硬化型樹脂液の硬化は一般に行わ
れて偽る方法で行うことができる。The curing of these ultraviolet curable resin liquids can be carried out by a commonly used method.
（実施例） 以下、具体的実施例について説明する。(Example) Specific examples will be described below.
透明樹脂基板として、厚さ３■のメタクリル樹脂板「ア
クリライトナ０００」（三菱レイ３フ社製、紫外線吸収
剤を含まないもの）を用い、この一方の面に次の条件で
紫外線を照射した。As a transparent resin substrate, a methacrylic resin plate "Acrylitena 000" (manufactured by Mitsubishi Leif Co., Ltd., containing no ultraviolet absorber) with a thickness of 3 cm was used, and one side of the plate was irradiated with ultraviolet rays under the following conditions.
ＳＯＷの紫外線ランプ １灯
照射距１ｌｌｉ１５ｃＷｌ
透明樹脂基板の移動速度 ５ｍ／分
黄銅板にフレネルレンズ面を刻設したレンズ型を用意し
、この上に下記組成の紫外線硬化型樹脂液を展延させ、
さらにこの上に上記透明樹脂基板を紫外線照射面を内側
にして対設させた。SOW ultraviolet lamp 1 lamp irradiation distance 1lli15cWl Transparent resin substrate moving speed 5m/min A lens mold with a Fresnel lens surface engraved on a brass plate was prepared, and an ultraviolet curable resin liquid with the following composition was spread on it.
Furthermore, the above-mentioned transparent resin substrate was placed on top of this with the ultraviolet irradiation surface facing inside.
（紫外線硬化型樹脂液の組成）
・三菱レイヨン社製ウレタンアクリレートｒＵＫ−６０
５８Ｊ ６０重量係・三菱レイヨン社製ヒド
ロキシエチルアクリレート［アクリエステルＨｏｌ
４０重景係・ベンゾフェノン ３］ｉ量係（上記の２
つの和に対して）次にこの透明樹脂基板側から、８０Ｗ
の高圧水銀灯１灯で照射距１１１１１５ｃｍ、移動速度
５ ｍ ７分の条件で紫外線を３回繰り返し照射し、硬
化させてレンズ部を一体的に形成した。(Composition of ultraviolet curable resin liquid) - Urethane acrylate rUK-60 manufactured by Mitsubishi Rayon Co., Ltd.
58J 60 weight division/Hydroxyethyl acrylate manufactured by Mitsubishi Rayon Co., Ltd. [Acryester Hol
40 Heavy picture section / Benzophenone 3] i quantity section (2 above)
) Next, from this transparent resin substrate side, 80W
The lens was repeatedly irradiated with ultraviolet rays three times using a single high-pressure mercury lamp at a irradiation distance of 111,115 cm and a moving speed of 5 m for 7 minutes, and was cured to form a lens portion integrally.
得られたフレネルレンズシー）ｔ−Ｊ工ＳＫ−５４００
に準拠し１−間隔で１０×１０本の折目状の切込みを設
け、七ロハンテーデを接合して剥離したところ、残りが
１００７１００ あり密着性のよ込ことが確認された
。Obtained Fresnel Lens Sea) t-J Engineering SK-5400
When 10 x 10 fold-like cuts were made at 1-interval intervals in accordance with the above, and the seven Rohantedes were bonded and peeled off, 1,007,100 slits remained, confirming good adhesion.
（発明の効果）
本発明は以上詳述した如き構成からなるものであるから
、レンズ部と透明樹脂基板との密着性の高込レンズシー
トを得ることができ、しかも特別な装置も必要としない
ため効率よく製造しうる利点がある。(Effects of the Invention) Since the present invention has the configuration as detailed above, it is possible to obtain a lens sheet with high adhesion between the lens portion and the transparent resin substrate, and furthermore, no special equipment is required. Therefore, it has the advantage of being able to be manufactured efficiently.
手続補正書
１、事件の表示 特願昭６５−５１１０５１、発明の
名称 レンズシートの製造方法五補正をする者
事件との関係 特許出願人
東京都中央区京橋二丁目３番１９号
（ＳＯ３）三菱レイヨン株式会社
取締役社長 永 井 彌太部
４代理人
〒１０４東京都中央区京橋二丁目３番１９号特許出願人
三菱レイヨン株式会社
代理人 弁理士 吉 澤 敏 夫
（１）明細書第５頁第１１行〜第１２行の「ヘキサンジ
オールシアグリレート、ヘキサンジオールジアクリレー
ト」を「ヘキサンジオールジアクリレート」に補正する
。Procedural amendment 1, indication of the case Patent application No. 65-511051, name of the invention Relationship with the case of the person making the amendment to the manufacturing method of lens sheet 5 Patent applicant Mitsubishi, 2-3-19 Kyobashi, Chuo-ku, Tokyo (SO3) Rayon Co., Ltd. President Yata Nagai Department 4 Agent 2-3-19 Kyobashi, Chuo-ku, Tokyo 104 Patent applicant Mitsubishi Rayon Co., Ltd. Agent Patent attorney Toshio Yoshizawa (1) Specification page 5 Correct "hexanediol sialylate, hexanediol diacrylate" in lines 11 to 12 to "hexanediol diacrylate".
（２）同第６頁第３行のｒｓｏｖＪをｒ ８０ Ｗ／ｗ
Ｊに補正する。(2) r sovJ on page 6, line 3 of the same page 80 W/w
Correct to J.
（３）同第６頁第１２行のｒＴ７に一６０３８Ｊを「Ｔ
ＪＫ−６０，３６」に補正する。(3) Add 16038J to rT7 on page 6, line 12 as “T
JK-60,36”.
（以上）(that's all)
Claims (1)
を介在させたのち紫外線を照射して透明樹脂基板の少な
くとも一面にレンズ部を形成するレンズシートの製造方
法において、透明樹脂基板の紫外線硬化型樹脂液の接す
る面を、予め活性エネルギー線を照射することを特徴と
するレンズシートの製造方法。In a method for manufacturing a lens sheet, the method includes interposing an ultraviolet curable resin liquid between a transparent resin substrate and a lens mold, and then irradiating ultraviolet rays to form a lens portion on at least one surface of the transparent resin substrate. A method for manufacturing a lens sheet, characterized in that the surface in contact with a mold resin liquid is irradiated with active energy rays in advance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63311051A JPH02157702A (en) | 1988-12-09 | 1988-12-09 | Production of lens sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63311051A JPH02157702A (en) | 1988-12-09 | 1988-12-09 | Production of lens sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02157702A true JPH02157702A (en) | 1990-06-18 |
Family
ID=18012518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63311051A Pending JPH02157702A (en) | 1988-12-09 | 1988-12-09 | Production of lens sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02157702A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999000700A1 (en) * | 1997-06-30 | 1999-01-07 | Lg Chemical, Ltd. | Projection television screen |
| US6937393B2 (en) | 1997-06-30 | 2005-08-30 | Lg Chemical Ltd. | Projection television screen |
-
1988
- 1988-12-09 JP JP63311051A patent/JPH02157702A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999000700A1 (en) * | 1997-06-30 | 1999-01-07 | Lg Chemical, Ltd. | Projection television screen |
| US6937393B2 (en) | 1997-06-30 | 2005-08-30 | Lg Chemical Ltd. | Projection television screen |
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