JPH03114002A - Production of lens sheet - Google Patents
Production of lens sheetInfo
- Publication number
- JPH03114002A JPH03114002A JP25347789A JP25347789A JPH03114002A JP H03114002 A JPH03114002 A JP H03114002A JP 25347789 A JP25347789 A JP 25347789A JP 25347789 A JP25347789 A JP 25347789A JP H03114002 A JPH03114002 A JP H03114002A
- Authority
- JP
- Japan
- Prior art keywords
- lens
- resin
- base material
- resin liquid
- 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 description 12
- 239000011347 resin Substances 0.000 claims description 63
- 229920005989 resin Polymers 0.000 claims description 63
- 239000007788 liquid Substances 0.000 claims description 40
- 239000000463 material Substances 0.000 claims description 34
- 238000000034 method Methods 0.000 claims description 12
- 239000000758 substrate Substances 0.000 claims description 7
- 230000001678 irradiating effect Effects 0.000 claims description 2
- 238000001723 curing Methods 0.000 description 5
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 4
- 229920000178 Acrylic resin Polymers 0.000 description 3
- 239000004925 Acrylic resin Substances 0.000 description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 2
- 229920000297 Rayon Polymers 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 2
- 239000010951 brass Substances 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 229920006353 Acrylite® Polymers 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- UHESRSKEBRADOO-UHFFFAOYSA-N ethyl carbamate;prop-2-enoic acid Chemical compound OC(=O)C=C.CCOC(N)=O UHESRSKEBRADOO-UHFFFAOYSA-N 0.000 description 1
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000000016 photochemical curing Methods 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 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
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 239000011116 polymethylpentene Substances 0.000 description 1
- 229920000306 polymethylpentene Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000005871 repellent Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 1
Landscapes
- Overhead Projectors And Projection Screens (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、太陽光の集光、各種光源装置あるいは透過型
スクリーン等に用いられるフレネルレンズ、あるいは透
過型、反射型スクリーン等に使用されるレンチキュラー
シート等、基材の表面に微細なレンズ部を形成したレン
ズシー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 is a Fresnel lens used for concentrating sunlight, various light source devices, transmission screens, etc., or used for transmission type, reflection type screens, etc. The present invention relates to a method of manufacturing a lens sheet, such as a lenticular sheet, in which fine lens portions are formed on the surface of a base material.
（従来の技術）
上記分野に使用されるレンズシートは、アクリル樹脂、
ポリカーボネート樹脂、塩化ビニル樹脂あるいはスチレ
ン樹脂等の透明樹脂材料を用い、これをレンズシート形
状を備えた金型を用いて射弊
出成型する方法や、これよりサイズが大きい場合には板
材料をレンズ型と共に加熱、加圧して熱転写する方法、
さらには板材料に直接切削工具によってレンズを切削す
る方法が知られている。(Prior art) Lens sheets used in the above fields are made of acrylic resin,
A transparent resin material such as polycarbonate resin, vinyl chloride resin, or styrene resin is used, and injection molding is performed using a mold with a lens sheet shape, or if the size is larger than this, the sheet material is molded into a lens. A method of thermal transfer by applying heat and pressure along with the mold;
Furthermore, a method is known in which a lens is directly cut into a plate material using a cutting tool.
ところが上記の方法は、概して製造装置が大規模なもの
となり、加熱や加圧操作を伴うことから製造サイクルが
長くなり、製造コストが嵩むという問題点があった。However, the above-mentioned methods generally require large-scale manufacturing equipment and involve heating and pressurizing operations, which lengthens the manufacturing cycle and increases manufacturing costs.
このため最近では、既存の樹脂材料を用い、この表面に
紫外線硬化型樹脂によってレンズ部だけを形成する方法
が提案されている（特開昭５４−１５６６５１号公報、
特開昭６１−１７ ７２．１５号公報、特開昭６２−２
３８５０２号公報参照）。For this reason, a method has recently been proposed in which an existing resin material is used and only the lens portion is formed on the surface of the resin material using ultraviolet curable resin (Japanese Patent Application Laid-open No. 156651/1983,
JP-A-61-17 72.15, JP-A-62-2
(See Publication No. 38502).
（発明が解決しようとする課題）
しかしながら、上記紫外線硬化型樹脂を用いて１／ンズ
シートをう”ノ造する場合に問題となる点は、レンズ型
と透明基材との間に紫外線硬化型樹脂液を注入する際に
発生する気泡を除去することが難しいことである。この
ため、」二配先行例のうち特開昭６１−１８２６０８号
公開では、紫外線硬化型樹脂液を減圧下で注入すること
が提案されているが、大きなサイズのレンズシートを製
造する場合には減圧設備が大規模のものとなってしまい
ツソ造コストの低減に寄与し１こくくなる。しかも、硬
化さゼる樹脂層の厚さが相当厚い場合には、減圧下で脱
泡する効果が認められるものの、樹脂層が１メンズ部の
みの如く薄い場合には、気泡の移動がレンズ型の凹凸に
阻害されるため、脱泡の効率が著しく低下してしまうと
いう難点があるので、本来レンズ部のみを紫外線硬化型
樹脂で形成して生産性を向上し、材料コストを低減ざゼ
るという目的に適合しないこととなる。(Problem to be Solved by the Invention) However, when forming a 1/2-lens sheet using the above-mentioned ultraviolet curable resin, there is a problem that there is a gap between the ultraviolet curable resin and the lens mold and the transparent base material. It is difficult to remove the air bubbles generated when injecting the liquid.For this reason, in Japanese Patent Application Laid-open No. 61-182608, among the two-distribution precedents, an ultraviolet curable resin liquid is injected under reduced pressure. However, when manufacturing a large-sized lens sheet, the decompression equipment becomes large-scale, which contributes to reducing the manufacturing cost and increases the cost by 1. Moreover, if the resin layer that is cured is quite thick, the effect of defoaming under reduced pressure can be recognized, but if the resin layer is thin, such as only in the 1st part, the movement of air bubbles will occur in a lens-like manner. Since the defoaming efficiency is significantly reduced due to the unevenness of the lens, it is recommended that only the lens portion be made of UV-curable resin to improve productivity and reduce material costs. It would not be suitable for that purpose.
本発明はこのような状況に鑑み、レンズ型に紫９Ｉ線硬
化樹脂液を展延し、透明基材を重ねる際に、レンズ型面
およびレンズ型と透明基材との間に気泡を巻き込まない
よう（、二し、しかも生産効率を低下させることのない
方法を提案しようどするものである。In view of this situation, the present invention has been developed to prevent air bubbles from being drawn into the lens mold surface and between the lens mold and the transparent base material when spreading the purple 9I ray-cured resin liquid onto the lens mold and stacking the transparent base material. We would like to propose a method that does not reduce production efficiency.
（課題を解決するための手段）
本来、１／ンズ型面およびレンズ型と透明基材との間に
気泡が発生ずる原因としては、レンズ型または透明基材
の表面に撥水性の物がイづ着している場合を除くと、１
メンズ型に樹脂液を展開する際に気泡を巻き込むことと
、透明基材と樹脂液の注入が終わ−った１ノンズ型を重
ね合わゼる際の樹脂液の表面の凹凸の凹部側、二起因し
て気泡が発生することが挙げられる。このうちレンズ型
への気泡の巻き込みは、樹脂液の注入速度を適正にコン
トロールすることで防ぐことができるが、重ね合わせの
際に巻き込む気泡は防止することが難しい。(Means for solving the problem) Originally, the cause of air bubbles occurring between the 1/2 lens mold surface and the lens mold and the transparent base material is when a water-repellent material is imprinted on the surface of the lens mold or the transparent base material. 1 unless it is attached
Two causes are the inclusion of air bubbles when applying the resin liquid to the men's mold, and the concave side of the uneven surface of the resin liquid when the transparent base material and the 1-non's mold that have been injected with the resin liquid are overlapped. This can lead to the generation of bubbles. Of these, the entrainment of air bubbles into the lens mold can be prevented by appropriately controlling the injection speed of the resin liquid, but it is difficult to prevent air bubbles from being entrained during stacking.
このため本発明は、紫外線硬化型樹脂液を展開さゼたレ
ンズ型に透明基材を重ねる際に、該樹脂液で流下させな
がら行ない、透明基材とレンズ型の間に発生した気泡を
流すようにしたもので、その要旨とするところは、レン
ズ型と透明基材との間に紫外線硬化型樹脂液を介在させ
ると共に、紫外縁を照射させて透明基材の少なくとも片
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、」１記レンズ型を傾斜させた状態で上方から紫外線
硬化型樹脂液を流下させながら、透明基材な近接させて
重ねることを特徴とするレンズシートの製造方法にある
や
以下、本発明を図面に従って説明する。For this reason, in the present invention, when stacking a transparent base material on a lens mold in which an ultraviolet curable resin liquid has been developed, the resin liquid is allowed to flow down, thereby removing air bubbles generated between the transparent base material and the lens mold. The gist of this is that an ultraviolet curable resin liquid is interposed between the lens mold and the transparent base material, and a lens portion is formed on at least one side of the transparent base material by irradiating ultraviolet light. In the method for manufacturing a lens sheet, the method comprises: 1. A method for manufacturing a lens sheet, characterized in that the lens mold described in item 1 is tilted and an ultraviolet curable resin liquid is allowed to flow down from above, while transparent substrates are stacked closely together. The present invention will now be described with reference to the drawings.
第１図ないし第６図は、本発明の工程の概略を示すもの
である。まずレンズシート形状を形成するだめの型面を
備えた１／ンズ型（１）を用意する。1 to 6 schematically show the steps of the present invention. First, a 1/lens mold (1) having a blank mold surface for forming a lens sheet shape is prepared.
このレンズ型（１）としては、フレネルレンズや１ノン
チギユラーレンズ等を形成するレンズ面を備えたもので
、アルミニウム、黄銅、鋼等の金属板やシリコン樹脂、
ウレタン樹脂、エボギシ樹脂、フッソ樹脂あるいはポリ
メチルペンテン樹脂等の合成樹脂から製作したものを用
いることができる。This lens type (1) has a lens surface that forms a Fresnel lens or a nontigiular lens, and is made of metal plates such as aluminum, brass, and steel, silicone resin, etc.
It is possible to use a material made of synthetic resin such as urethane resin, ebogishi resin, fluorocarbon resin, or polymethylpentene resin.
次に、上記レンズ型（１）と略同サイズの透明基材（２
）を用意する。この透明基材（２）の材質は紫外線を通
過する硝子板でもよいが、−射的にはアクリル樹脂、ポ
リカーボネーＩ・樹脂、塩化ビニル樹脂等の透明合成樹
脂板あるいはフィルムが用いられる。Next, a transparent base material (2
). The material of the transparent substrate (2) may be a glass plate that transmits ultraviolet rays, but for radiation purposes, a transparent synthetic resin plate or film such as acrylic resin, polycarbonate I resin, or vinyl chloride resin is used.
本発明ではまず第１図のよ・）にレンズ型（１）を水平
面に対し５〜８０゛傾りて設置し、さらに第２図のよう
にレンズ型（１）ど平行に、間隔が０．５ｍｍ以上とな
るように、前記透明基材（２）を対置する。In the present invention, first, the lens mold (1) is installed at an angle of 5 to 80 degrees with respect to the horizontal plane as shown in Fig. The transparent substrates (2) are placed opposite each other so that the distance is .5 mm or more.
次に、紫外線硬化型樹脂液（３）を、第３図に示すよう
に、傾斜上部ｌこ設置したノズル（４）より吐出させレ
ンズ型（１）面を流下さゼる。Next, as shown in FIG. 3, the ultraviolet curable resin liquid (3) is discharged from a nozzle (4) installed on the slanted upper part and flows down the surface of the lens mold (1).
このときＩこ用いる紫外線硬化型樹脂としては、ポリエ
ステルアクリレート系、エボギシアクリレート系、ポリ
ウレタナクリレ−１・系等が用いられるが、流下時の粘
度がｌθ〜２００ ｃｐｓの範囲にあり、かつ硬化後の
透明性が高いものが望ましい。At this time, the UV-curable resin to be used is polyester acrylate-based, evogyacrylate-based, polyurethane acrylate-1, etc., but the viscosity at the time of flow is in the range of lθ to 200 cps, and the resin is cured. It is desirable to have high transparency afterward.
このとき使用する紫外線硬化型樹脂液（３）は、予め」
−分に脱泡しておくとともに、液中のごみをフィルター
で濾過しておくことが望ましい。The ultraviolet curing resin liquid (3) to be used at this time must be prepared in advance.
It is desirable to defoam the liquid for at least 10 minutes and filter out any dirt in the liquid.
第３図の状態で樹脂液が流下する最初の瞬間に型の溝の
内部に、気泡が生じることがあるが、連続して樹脂液を
流下させていく過程で気泡は表面に浮上し、樹脂液と共
に流れ出ていく。Air bubbles may be formed inside the grooves of the mold at the first moment when the resin liquid flows down in the state shown in Figure 3, but as the resin liquid continues to flow down, the air bubbles rise to the surface and the resin It flows out with the liquid.
紫外線硬化型樹脂液（３）の流下が安定化したら、第４
図に示すように、透明基材（２）を徐々に近づけ、透明
基材（２）に樹脂液を接触させる。この際に再度気泡が
発生することがあるが、樹脂液の粘度が低く傾斜が急な
場合には浮力で、また樹脂液の粘度が高（傾斜が緩やか
な場合には樹脂の勢いで気泡を取り除くことができる。When the flow of the ultraviolet curable resin liquid (3) becomes stable, the fourth
As shown in the figure, the transparent base material (2) is gradually brought closer to bring the resin liquid into contact with the transparent base material (2). At this time, bubbles may be generated again, but if the viscosity of the resin liquid is low and the slope is steep, the bubbles may be generated by buoyancy or by the force of the resin if the viscosity of the resin liquid is high (if the slope is gentle). can be removed.
このときノズル（４）から連続して吐出される樹脂液は
、塗布予定量に対し余剰になるように調製する必要があ
る。このため余剰の樹脂液は、傾斜の下方または周辺部
からオーバーフローさせる。At this time, it is necessary to prepare the resin liquid continuously discharged from the nozzle (4) so that it is in excess of the planned amount of application. Therefore, the excess resin liquid is caused to overflow from the lower part of the slope or from the peripheral part.
このとき余剰の樹脂液は樹脂受け（７）から回収し再度
脱泡、濾過してリサイクル使用する。At this time, excess resin liquid is collected from the resin receiver (7), defoamed and filtered again, and recycled.
気泡がすべて抜けたら、樹脂液の吐出を止め、静かにノ
ズル（４）をレンズ型（１）の上方から抜き去る。When all the air bubbles are removed, stop discharging the resin liquid and gently remove the nozzle (4) from above the lens mold (1).
その後、レンズ型（１）の傾斜を水平に戻し、再度ロー
ル（９）で押圧し、レンズ型と透明基材の間の余分な樹
脂液（３）を流し出す。Thereafter, the inclination of the lens mold (1) is returned to horizontal, and the lens mold (1) is pressed again with the roll (9) to flush out the excess resin liquid (3) between the lens mold and the transparent base material.
以上の工程を経ることにより、レンズ型（１）面および
紫外線硬化型樹脂液（３）と透明基材（２）との間に気
泡を巻き込むことな（透明基材（２）を重ねることがで
きる。By going through the above steps, it is possible to overlap the transparent substrate (2) without introducing air bubbles between the lens mold (1) surface, the ultraviolet curable resin liquid (3), and the transparent substrate (2). can.
このあと第６図のように、透明基材（２）を通して紫外
線を照射（８）シ硬化させ、硬化後に脱型してレンズシ
ートを取り出すが、この方法によって得られたレンズシ
ートは、透明基板（２）にレンズ部が一体的に形成され
ていて、しかもレンズ部に泡のない優れたものとなる。After that, as shown in Figure 6, the transparent substrate (2) is irradiated with ultraviolet rays (8) to cure it, and after curing, the mold is removed and the lens sheet is taken out. (2) The lens part is integrally formed, and the lens part is excellent in that it is free of bubbles.
（実施例）
以下、本発明の具体的な実施例を第７図ないし第９図に
基いて説明する。(Example) Hereinafter, specific examples of the present invention will be described based on FIGS. 7 to 9.
まず第７図に示すように、板厚３ｍｍで１１００ｘ８０
０１の大きさの黄銅板表面にフレネルレンズ型面を切削
したレンズ型（１）と、このレンズ型（１）を収納しう
る浅皿状で上下２辺の枠（６Ａ）が着脱できると共に、
白下面に傾斜固定を可能とする脚（１）をセットした。First, as shown in Figure 7, the plate thickness is 3mm and the size is 1100x80.
A lens mold (1) with a Fresnel lens type surface cut on the surface of a brass plate of size 01, and a shallow dish-shaped frame (6A) with two upper and lower sides that can accommodate this lens mold (1) are removable.
Legs (1) that enable tilting and fixation were set on the white lower surface.
次に、架台（６）が３０°の傾斜を保つよう脚（６Ｂ）
を立てた状態で、枠（６＾）を外した辺が上下方向にな
り、かつ下端が樹脂受け（７）に接するように枠（６）
と樹脂受け（７）をセツティングした。Next, set the legs (6B) so that the pedestal (6) maintains a 30° inclination.
With the frame (6^) in the upright position, place the frame (6) so that the side from which the frame (6^) is removed is in the vertical direction and the bottom end is in contact with the resin receiver (7).
and set the resin receiver (7).
紫外線硬化型樹脂液（３）のノズル（４）として５ＵＳ
３０４ＴＰ １５Ａのステンレス配管にｌ ｍｍ（７）
溝を切削したものを準備し、同装置に紫外線硬化型樹脂
液（３）の送液用に大同メタル社製ｒＷＰ２０４０型」
ギアポンプを、ラインフィルターとして東洋濾紙製ｒＴ
ｃＷ１０Ｒ３ｓフィルター」を接続し、レンズ型上部に
接するよう配置し、毎分２０ ！Ｊ？）ルで紫外線硬化
型樹脂液（３）を流下させた。5US as nozzle (4) for ultraviolet curing resin liquid (3)
304TP 15A stainless steel pipe l mm (7)
A groove was cut and prepared, and an rWP2040 model manufactured by Daido Metal Co., Ltd. was used to send the ultraviolet curing resin liquid (3) to the same device.
Use the gear pump as a line filter using Toyo Roshi rT.
Connect the "cW10R3s filter" and place it so that it touches the top of the lens mold, and the speed of 20 seconds per minute! J? ) The ultraviolet curable resin liquid (3) was allowed to flow down through the tube.
このとき用いた紫外線硬化型樹脂液（３）の組成は次の
通りである。The composition of the ultraviolet curable resin liquid (3) used at this time is as follows.
本日本合成化学社製ウレタンアクリレートｒＵＶ−３０
００ＢＪ ３０ｆｉ量％＊三菱レイヨン社製
ビスフェノールＡ系アクリレート「ダイヤビーム４１１
７Ｊ １０ 重量％＊三菱レイヨン社製モノマー
［ダイヤビーム２１０６Ｊ ６０ 重量％＊メ
ルク社製（光硬化触媒）
ｒＤａｒｏｃｕｒ ５１１７ Ｊ １．５
＠１に％（上記２つの七ツマ−の和に対して）
次に、第８図のように、レンズ型（１）とほぼ等しい大
きさの透明基材（２）三菱イヨン社製アクリル樹脂板「
アクリライト＃０ＯＯＪ、３１Ｉ１ｍ厚を、レンズ型と
の間隔が平均して３０ｍｍ程度となるよう妙徳社製のｒ
ＰＦＹＫＢ−９５型吸盤」を６個使用した真空吸着装置
（５）でレンズ型に対置した。Urethane acrylate rUV-30 manufactured by Nippon Gosei Kagaku Co., Ltd.
00BJ 30fi amount% *Bisphenol A acrylate “Diabeam 411” manufactured by Mitsubishi Rayon Co., Ltd.
7J 10% by weight * Monomer manufactured by Mitsubishi Rayon Co., Ltd. [Diabeam 2106J 60% by weight * Manufactured by Merck & Co. (photo curing catalyst) rDarocur 5117 J 1.5
@1% (with respect to the sum of the above two seven points) Next, as shown in Figure 8, a transparent base material (2) of approximately the same size as the lens mold (1), an acrylic resin manufactured by Mitsubishi Yon Co., Ltd. Board “
Acrylite #0OOJ, 31I 1m thick, was made using Myotokusha's r
A vacuum suction device (5) using six "PFYKB-95 type suction cups" was placed opposite the lens mold.
レンズ型（１）中の気泡が抜けた時点で、ノズル（４）
からの紫外線硬化型樹脂液（３）の吐出を継続した状態
で、透明基材（２）を真空吸着装置（５）により静かに
レンズ型に近付けていき、透明基材（２）全面が樹脂液
に接触するように設置した。When the air bubbles in the lens mold (1) are removed, the nozzle (4)
While continuing to discharge the ultraviolet curable resin liquid (3), the transparent base material (2) is gently brought close to the lens shape using the vacuum suction device (5), until the entire surface of the transparent base material (2) is covered with resin. It was placed in contact with the liquid.
この際に気泡が入ることがあるが、引続き樹脂液を流下
させることで抜くことができる。そして気泡が抜けたら
、透明基材（２）を、直径５０ｍｍのゴムロールで上方
から下方へ押圧して密着さゼつつ樹脂液をしごいていき
、余剰の樹脂液を押し出して樹脂受け（７）で回収した
後、架台（Ｔ））の傾斜欠元に戻した。Air bubbles may enter at this time, but they can be removed by continuing to let the resin liquid flow down. Once the air bubbles are removed, press the transparent base material (2) from above to below with a rubber roll with a diameter of 50 mm to squeeze out the resin liquid while keeping it in close contact with the transparent base material (2). Push out the excess resin liquid and move it to the resin receiver (7). After collecting it, it was returned to the inclined part of the pedestal (T).
この後、透明基材（２）の」一方より、ａｏｗ ／ ｃ
ｔｎの照射強度のウェスタンクオー・ツ社製紫外線ラン
プ（８）で照射して硬化さぜた。こののち脱型しで取り
出したところ泡のない第９図のような７１ノネルレンズ
を得ることができた５
（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
、気泡の発生のない紫外線硬化型樹脂に上
よるレンズ部が透明基材の面に形成でき、性能のよい１
ノンズシートを比較的小規模な設備で効率良く４作する
ことができるという利点を有している。After this, from one side of the transparent base material (2), aow/c
It was cured by irradiation with an ultraviolet lamp (8) manufactured by Western Quartz Co., Ltd. with an irradiation intensity of tn. After this, when the mold was removed and taken out, a 71 nonel lens without bubbles as shown in FIG. 9 was obtained. The lens part can be formed on the surface of the transparent base material using ultraviolet curable resin that does not generate light, and has good performance.
It has the advantage of being able to efficiently produce four non-sheets with relatively small-scale equipment.
第１図ないし第６図は本発明方法の工程の概略を示す断
面図、第７図ないし第９図は本発明の実施例の工程を示
すもので、第７図および第８図は架台、型、樹脂受ｔＪ
、吸着装置等をセットシた状態の斜視図、第９図は得ら
れたレンズシートの断面図である。
（１）・・・レンズ型
２ ・・・透明基材
３ ・・・紫外線硬化型樹脂液
４ ・・・ノズル
５）・・・真空吸着装置
Ｇ ・・・架台
６Ａ）・・・架台の脱着可能な枠
６Ｂ）・・・架台の傾斜調整用の脚
（７）・・・樹脂受け
（８）・・・紫外線ランプ
（９）・・・Ｘ〕−ル
ｌ： レンス゛型
尾５
凹
第６図1 to 6 are cross-sectional views schematically showing the steps of the method of the present invention, and FIGS. 7 to 9 show the steps of an embodiment of the present invention. Mold, resin receiver tJ
, a perspective view of a state in which a suction device and the like are set, and FIG. 9 is a sectional view of the obtained lens sheet. (1)...Lens mold 2...Transparent base material 3...Ultraviolet curing resin liquid 4...Nozzle 5)...Vacuum adsorption device G...Base 6A)...Detachment of the frame Possible frame 6B)... Legs for adjusting the inclination of the pedestal (7)... Resin receiver (8)... Ultraviolet lamp (9)... figure
Claims (1)
させると共に、紫外線を照射させて透明基材の少なくと
も片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、上記レンズ型を傾斜させた状態で上方から紫外
線硬化型樹脂液を流下させながら、透明基材を近接させ
て重ねることを特徴とするレンズシートの製造方法。In the method for manufacturing a lens sheet, the method includes interposing an ultraviolet curable resin liquid between a lens mold and a transparent base material, and irradiating ultraviolet rays to form a lens portion on at least one side of the transparent base material, the lens mold being tilted. A method for manufacturing a lens sheet, which comprises stacking transparent substrates close to each other while allowing an ultraviolet curable resin liquid to flow down from above.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25347789A JPH03114002A (en) | 1989-09-28 | 1989-09-28 | Production of lens sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25347789A JPH03114002A (en) | 1989-09-28 | 1989-09-28 | Production of lens sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03114002A true JPH03114002A (en) | 1991-05-15 |
Family
ID=17251931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25347789A Pending JPH03114002A (en) | 1989-09-28 | 1989-09-28 | Production of lens sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03114002A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6752615B2 (en) * | 2000-11-22 | 2004-06-22 | Dai Nippon Printing Co., Ltd. | Forming mold for a lens sheet |
| KR101675430B1 (en) * | 2015-08-19 | 2016-11-16 | 박민정 | Water duster cleaner with water supply control capabilities |
-
1989
- 1989-09-28 JP JP25347789A patent/JPH03114002A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6752615B2 (en) * | 2000-11-22 | 2004-06-22 | Dai Nippon Printing Co., Ltd. | Forming mold for a lens sheet |
| KR101675430B1 (en) * | 2015-08-19 | 2016-11-16 | 박민정 | Water duster cleaner with water supply control capabilities |
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