JPH0985754A - Injection of plastic lens material liquid - Google Patents
Injection of plastic lens material liquidInfo
- Publication number
- JPH0985754A JPH0985754A JP24638495A JP24638495A JPH0985754A JP H0985754 A JPH0985754 A JP H0985754A JP 24638495 A JP24638495 A JP 24638495A JP 24638495 A JP24638495 A JP 24638495A JP H0985754 A JPH0985754 A JP H0985754A
- Authority
- JP
- Japan
- Prior art keywords
- material liquid
- adhesive tape
- injection
- injection port
- raw material
- 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.)
- Granted
Links
Landscapes
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、眼鏡レンズ等のプ
ラスチックレンズの成形に利用され、特に粘着テープを
用いたレンズモールドにプラスチックレンズの原料液を
注入する方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for molding a plastic lens such as a spectacle lens, and more particularly to a method for injecting a raw material liquid for a plastic lens into a lens mold using an adhesive tape.
【０００２】[0002]
【従来の技術】近年、眼鏡レンズ等にプラスチックレン
ズが多く使用されている。このプラスチックレンズの成
形を簡単に行う方法として、粘着テープを用いたいわゆ
るテープモールド法が知られている。この方法は、図１
に示すように、一方の面をレンズ成形面とする２枚のガ
ラス型を、互いの成形面を所定の間隔をもって対向さ
せ、この状態でガラス型の周面にまたがるように全周に
粘着テープを粘着巻回して２枚のガラス型を固定保持さ
せたレンズモールド１を用い、２枚のガラス型の間に形
成された内部空間（以下この空間を成形空間と称する）
に、重合して硬化するプラスチックレンズの原料液を注
入し、加熱等の手段によって重合硬化させてプラスチッ
クレンズを成形するものである。2. Description of the Related Art Recently, plastic lenses have been widely used for eyeglass lenses and the like. A so-called tape molding method using an adhesive tape is known as a method for easily molding the plastic lens. This method is shown in FIG.
As shown in Fig. 2, two glass molds each having one surface as a lens molding surface are made to face each other with a predetermined distance between the molding surfaces, and in this state, the adhesive tape is applied over the entire circumference so as to straddle the peripheral surface of the glass mold. An internal space formed between two glass molds by using the lens mold 1 in which two glass molds are fixed and held by adhesive winding (hereinafter, this space is referred to as a molding space)
Then, a raw material liquid for a plastic lens that is polymerized and hardened is injected, and is polymerized and cured by a means such as heating to mold the plastic lens.
【０００３】従来、このレンズモールド１にプラスチッ
クレンズの原料液を注入する方法としては、例えば特公
平５−３６２１１号公報に記載されているような、粘着
テープのつなぎ合わせ部に設けられた開口部から注入す
る方法（以下第１の注入方法と称する）が知られてい
る。この方法は、図２に示すように、２枚のガラス型の
周面に粘着巻回された粘着テープを一部剥してつなぎ合
わせ部分を開口させ、この開口部から注入管２の先端部
分をレンズモールド１の成形空間に挿入し、プラスチッ
クレンズの原料液を注入した後、再び粘着テープの剥し
た部分をを張り付けて成形空間を密封するものである。Conventionally, as a method of injecting a raw material liquid for a plastic lens into the lens mold 1, for example, an opening provided in a joint portion of adhesive tapes as described in Japanese Patent Publication No. 5-36211. There is known a method of injecting from (hereinafter referred to as a first injection method). In this method, as shown in FIG. 2, a part of the adhesive tape adhesively wound around the peripheral surfaces of two glass molds is peeled off to open a joint portion, and the tip portion of the injection tube 2 is opened from this opening portion. After inserting into the molding space of the lens mold 1 and injecting the raw material liquid for the plastic lens, the peeled portion of the adhesive tape is attached again to seal the molding space.
【０００４】また、後で述べるような第１の注入方法が
有する問題点を解決する方法として、注射針のような鋭
利な先端形状を有する注入管を用いる注入方法（以下第
２の注入方法と称する）が知られている。この方法は、
図３に示すように、レンズモールド１を保持手段３によ
って保持固定し、粘着テープに注入管２を突き刺してそ
の鋭利な先端で粘着テープを突き破り、レンズモールド
１の成形空間に注入管２の先端部分を挿入してプラスチ
ックレンズの原料液を注入し、注入後は注入管２を抜取
り、突き破られてできた注入管２の挿入口を、その部分
に別の粘着テープを張り付ける、接着剤を付着させる、
その部分の原料液を局所的に重合硬化させる等の方法で
密封するものである。Further, as a method for solving the problems of the first injection method described later, an injection method using an injection tube having a sharp tip shape such as an injection needle (hereinafter referred to as the second injection method and Called) is known. This method
As shown in FIG. 3, the lens mold 1 is held and fixed by the holding means 3, the injection tape 2 is pierced into the adhesive tape, the adhesive tape is pierced by the sharp tip thereof, and the injection tube 2 tip is inserted into the molding space of the lens mold 1. Insert the part and inject the raw material liquid for the plastic lens. After the injection, remove the injection tube 2 and attach another adhesive tape to the insertion port of the injection tube 2 that has been pierced. Attach,
The raw material liquid in that portion is sealed by a method such as locally polymerizing and hardening.
【０００５】[0005]
【発明が解決しようとする課題】第１の注入方法では、
プラスチックレンズの原料液の注入の際に、剥した部分
のテープの粘着面に原料液の一部が付着する可能性がき
わめて高い。そして原料液が付着することで、粘着テー
プの粘着力が低下するか失われしまい、再び粘着テープ
を張り付けても充分な密封性を保持することができなく
なるという問題が生じる。その結果プラスチックレンズ
の原料液を重合硬化させる過程において、原料液がレン
ズモールドから漏れ出したり、空気が成形空間内に侵入
して気泡として残るなどの成形不良をもたらすという問
題を有していた。In the first injection method,
During the injection of the raw material liquid for the plastic lens, there is a high possibility that part of the raw material liquid will adhere to the adhesive surface of the tape at the peeled portion. Then, the adhesion of the raw material liquid causes the adhesive force of the adhesive tape to be reduced or lost, and there arises a problem that it becomes impossible to maintain a sufficient sealing property even if the adhesive tape is attached again. As a result, in the process of polymerizing and curing the raw material liquid of the plastic lens, there is a problem that the raw material liquid leaks from the lens mold, or air enters the molding space and remains as bubbles, resulting in defective molding.
【０００６】一方第２の注入方法によれば、いったん粘
着巻回した粘着テープを剥すことなくプラスチックレン
ズの原料液を注入することができるので、粘着テープの
粘着力不足による原料液の漏れ出しや空気の侵入による
気泡の発生といった、第１の注入方法が有していた問題
を解決することができる。On the other hand, according to the second injection method, since the raw material liquid for the plastic lens can be injected without peeling off the adhesive tape once adhesively wound, leakage of the raw material liquid due to insufficient adhesion of the adhesive tape or It is possible to solve the problem that the first injection method has, such as the generation of bubbles due to the entry of air.
【０００７】しかし、この第２の注入方法では、注入管
２の鋭利な先端で粘着テープを突き刺した際に粘着テー
プの小片が削られ、あるいは切りとられ、これらの小片
が成形空間内に注入されたプラスチックレンズの原料液
中に混入し、それがそのまま成形されたレンズ中に残留
して外観上の重大欠点となってしまうという問題があ
る。また、粘着テープを突き破るために、注入管２は金
属などの硬い材質で作る必要があり、かつ先端が鋭利な
形状であるため、成形空間内でガラス型に接触した際
に、ガラス型のレンズ成形面を傷つける恐れがあり、成
形されたレンズにその傷が転写されて外観上の重大欠点
となるだけでなく、ガラス型が使用不能になってしまう
ため、製造コストの増大を生じるという問題も有してい
た。However, in this second injection method, when the adhesive tape is pierced by the sharp tip of the injection tube 2, the small pieces of the adhesive tape are scraped or cut off, and these small pieces are injected into the molding space. There is a problem in that it is mixed in the raw material liquid of the plastic lens that has been formed, and remains in the molded lens as it is, causing a serious defect in appearance. Further, in order to break through the adhesive tape, the injection tube 2 needs to be made of a hard material such as metal, and since the tip has a sharp shape, when the glass tube contacts the glass mold in the molding space, There is a risk that the molding surface may be damaged, and that the scratches are transferred to the molded lens, which not only causes a serious defect in appearance, but also makes the glass mold unusable, resulting in an increase in manufacturing cost. Had.
【０００８】本発明の目的は、このような第１及び第２
の注入方法が有していた問題点を解決し、レンズの成形
不良や外観上の重大欠点を生じる恐れのないプラスチッ
クレンズ原料液の注入方法を提供することにある。An object of the present invention is to provide such a first and second
SUMMARY OF THE INVENTION It is an object of the present invention to provide a method for injecting a plastic lens raw material liquid that solves the problems of the injection method described above and does not cause defective molding of the lens or serious defects in appearance.
【０００９】[0009]
【課題を解決するための手段】本発明のプラスチックレ
ンズ原料液の注入方法は、成形面が所定の間隔をもって
対向された２枚のガラス型の周面にまたがるように粘着
テープを粘着巻回してなるレンズモールドにプラスチッ
クレンズの原料液を注入するプラスチックレンズ原料液
の注入方法において、前記粘着テープの所定の位置にあ
らかじめ注入口を形成した後、該注入口から前記原料液
を注入することを特徴とする。According to the method for injecting a plastic lens raw material liquid of the present invention, an adhesive tape is adhesively wound so that the molding surface extends over the peripheral surfaces of two glass molds opposed to each other at a predetermined interval. In a method of injecting a raw material liquid for a plastic lens into a lens mold, the method of injecting a raw material liquid for a plastic lens comprises forming an injection port at a predetermined position of the adhesive tape in advance, and then injecting the raw material liquid from the injection port. And
【００１０】また、前記粘着テープの所定の位置を非接
触で局所的に加熱溶融することにより、前記注入口を形
成することを特徴とする。Further, the injection port is formed by locally heating and melting a predetermined position of the adhesive tape in a non-contact manner.
【００１１】さらに、加熱圧縮空気、レーザー光もしく
は高熱光のいずれかを用いて前記粘着テープの所定の位
置を局所的に加熱溶融することを特徴とする。Further, it is characterized in that a predetermined position of the adhesive tape is locally heated and melted by using heated compressed air, laser light or high heat light.
【００１２】[0012]
【作用】プラスチックレンズの成形に用いられる粘着テ
ープの材質としては、一般にポリエチレンテレフタレー
トなどのポリエチレン系樹脂が用いられている。本発明
者は、このような粘着テープを非接触で局所的に加熱し
た場合、局所的に加熱された部分が、溶融温度に達した
点より順次溶融を開始し、溶融した樹脂が分離せずに表
面張力の働きによって溶融していない部分へ集まってい
くという性質を有することを見いだした。このようにし
てできた注入口は、図７に示すように、溶融した樹脂が
注入口の内周部に集中して盛り上がったような断面形状
を有する。本発明は、このような知見に基づいて成され
たもので、この性質を利用することにより溶融した樹脂
が成形空間内に混入する恐れがなく、所望の注入口を形
成することができる。またこれを実現するためには、粘
着テープの所定の箇所のみを集中的に溶融温度まで加熱
する手段が必要である。望ましい加熱方法としては、粘
着テープに加熱した圧縮空気を吹き付ける方法や、レー
ザー光あるいは高熱光を照射する方法が挙げられる。こ
れらの加熱手段を用いることにより、粘着テープを１秒
未満のきわめて短時間に局所的に溶融温度まで加熱する
ことができる。[Function] As the material of the adhesive tape used for molding the plastic lens, polyethylene resin such as polyethylene terephthalate is generally used. The present inventor, when such an adhesive tape is locally heated in a non-contact manner, the locally heated portion starts melting sequentially from the point of reaching the melting temperature, and the molten resin does not separate. It has been found that, due to the effect of surface tension, it has the property of gathering in the unmelted portion. As shown in FIG. 7, the injection port formed in this manner has a cross-sectional shape in which molten resin concentrates and swells on the inner peripheral portion of the injection port. The present invention was made based on such knowledge, and by utilizing this property, there is no fear that the molten resin will be mixed in the molding space, and a desired injection port can be formed. Further, in order to realize this, a means for intensively heating only a predetermined portion of the adhesive tape to the melting temperature is necessary. Desirable heating methods include a method of blowing heated compressed air onto the adhesive tape, and a method of irradiating laser light or high heat light. By using these heating means, the adhesive tape can be locally heated to the melting temperature in an extremely short time of less than 1 second.
【００１３】図８に、これらの加熱方法を用いて粘着テ
ープを局所的に加熱するための装置の基本的な構成の概
略を示す。１６は前述の加熱手段、すなわち加熱圧縮空
気、レーザー光あるいは高熱光を発生させる発生装置、
１７はその制御装置である。また、９は加熱手段として
加熱圧縮空気を用いた場合に、それを粘着テープに局所
的に吹き付ける為の加熱圧縮空気吐出管であり、レーザ
ー光、高熱光を用いる場合には特に必要としない。さら
に、発生装置１６からレンズモールド１までの距離を調
節する距離調節手段１８と、レンズモールド１の注入口
形成位置を調節し、かつレンズモールド１を保持する保
持手段３を備えることにより、粘着テープを局所的に加
熱して所望の大きさの注入口を形成することができる。FIG. 8 schematically shows the basic structure of an apparatus for locally heating an adhesive tape by using these heating methods. Reference numeral 16 is the above-mentioned heating means, that is, heating compressed air, a generator for generating laser light or high heat light,
Reference numeral 17 is its control device. Reference numeral 9 denotes a heated compressed air discharge tube for locally blowing the compressed compressed air onto the adhesive tape when the heated compressed air is used as the heating means, and is not particularly required when laser light or high heat light is used. Further, by providing the distance adjusting means 18 for adjusting the distance from the generator 16 to the lens mold 1 and the holding means 3 for adjusting the injection port forming position of the lens mold 1 and holding the lens mold 1, the adhesive tape Can be locally heated to form the inlet of the desired size.
【００１４】[0014]
（実施例１） 加熱圧縮空気を用いる加熱方法 加熱圧縮空気を用いる加熱方法の概略を図４に示す。図
４において、４は空気を圧縮するためのコンプレッサ
ー、５は圧縮された空気を加熱するための加熱器、６は
加熱器の温度を制御する温度制御装置、７は圧縮空気の
圧力を調節する圧力調節弁、８は空気流量調節弁、９は
先端の径が１ｍｍの加熱圧縮空気吐出管である。(Example 1) Heating method using heated compressed air An outline of a heating method using heated compressed air is shown in Fig. 4. In FIG. 4, 4 is a compressor for compressing air, 5 is a heater for heating the compressed air, 6 is a temperature control device for controlling the temperature of the heater, and 7 is for adjusting the pressure of the compressed air. A pressure control valve, 8 is an air flow rate control valve, and 9 is a heated compressed air discharge pipe having a tip diameter of 1 mm.
【００１５】まず、ポリエチレンテレフタレート製の粘
着テープを粘着巻回したレンズモールド１を、注入口形
成位置が加熱圧縮空気吐出管９の先端部から２ｃｍ下方
に位置するように位置決めして保持手段３により固定し
た。次に、コンプレッサー４で５ｋｇ／ｃｍ2 に圧縮さ
れた圧縮空気を、圧力調節弁７で２ｋｇ／ｃｍ2 に減圧
し、空気流量調節弁８により、流量を毎分２リットルに
調節した後、加熱器５及び温度制御装置６により２５０
℃に加熱した加熱圧縮空気を加熱圧縮空気吐出管９の先
端からレンズモールド１に吹き付け、直径１．５ｍｍか
ら２．５ｍｍの注入口を形成した。このようにして得ら
れた注入口から外径１．２ｍｍのステンレス製の注入管
を、レンズモールド１の成形空間に挿入し、プラスチッ
ク原料液を注入した後、周知の方法で重合硬化させ
た。。First, the lens mold 1 on which an adhesive tape made of polyethylene terephthalate is adhesively wound is positioned by the holding means 3 so that the injection port forming position is located 2 cm below the tip of the heated compressed air discharge pipe 9. Fixed Then, the compressed air compressed in 5 kg / cm 2 by a compressor 4, a reduced pressure of 2 kg / cm 2 with a pressure regulating valve 7 was adjusted by an air flow control valve 8, the flow rate to 2 liters per minute, heated 250 by the device 5 and the temperature control device 6
The heated compressed air heated to 0 ° C. was blown onto the lens mold 1 from the tip of the heated compressed air discharge pipe 9 to form an injection port having a diameter of 1.5 mm to 2.5 mm. An injection pipe made of stainless steel having an outer diameter of 1.2 mm was inserted into the molding space of the lens mold 1 through the injection port thus obtained, and the plastic raw material liquid was injected, followed by polymerization and curing by a known method. .
【００１６】このようにして得られたプラスチックレン
ズを、目視による透過検査で検査し、粘着テープの小片
などの異物の混入が確認されたものを異物混入の不良
品、気泡の残留が認められたもの及び外周部に外周整形
しても修復できない程度の欠けを有するものを整形不良
の不良品とした。その結果を表１に示す。The thus-obtained plastic lens was inspected by a visual transmission test, and when it was confirmed that foreign matter such as a small piece of adhesive tape was mixed, a defective foreign matter mixture and residual air bubbles were recognized. Those having a chip that could not be repaired even if the outer peripheral portion was peripherally shaped were regarded as defective defective shaped articles. Table 1 shows the results.
【００１７】（実施例２） レーザー光線を用いる方法 レーザー光線を用いる加熱方法の概略を図５に示す。図
５において、１０は炭酸ガスレーザー発生装置、１１は
対象物までの距離の調節手段を備えた炭酸ガスレーザー
照射装置、１２は加工台である。Example 2 Method Using Laser Beam An outline of a heating method using a laser beam is shown in FIG. In FIG. 5, 10 is a carbon dioxide gas laser generation device, 11 is a carbon dioxide gas laser irradiation device equipped with a means for adjusting the distance to the object, and 12 is a working table.
【００１８】実施例１で用いたのと同様のレンズモール
ド１を保持手段３により固定し、炭酸ガスレーザー発生
装置１０より発生させたレーザー光線を、炭酸ガスレー
ザー照射装置１１よりレンズモールド１の粘着テープへ
の照射面積が直径１ｍｍの円になるよう焦点をずらせて
照射することにより、直径１．５ｍｍから２．５ｍｍの
注入口を形成した。この注入口から実施例１と同様の方
法でプラスチック原料液を注入し、重合硬化させた。こ
のようにして得られたプラスチックレンズを実施例１と
同様の方法で検査した。その結果を表１に示す。The same lens mold 1 as that used in Example 1 is fixed by the holding means 3, and the laser beam generated by the carbon dioxide gas laser generator 10 is applied by the carbon dioxide laser irradiation device 11 to the adhesive tape of the lens mold 1. By irradiating the irradiation area with a focus so that the irradiation area becomes a circle having a diameter of 1 mm, an injection port having a diameter of 1.5 mm to 2.5 mm was formed. A plastic raw material liquid was injected from this injection port in the same manner as in Example 1 to polymerize and cure. The plastic lens thus obtained was inspected in the same manner as in Example 1. Table 1 shows the results.
【００１９】（実施例３） 高熱光を用いる方法 高熱光を用いる加熱方法の概略を図６に示す。図６にお
いて、１３は赤外線ランプなどの高熱光を発生する光
源、１４は光源からの高熱光を粘着テープの注入口形成
位置に集光するための凹面反射鏡からなる集光部、１５
は光源の出力を調整する光源制御装置である。Example 3 Method Using High Heat Light An outline of a heating method using high heat light is shown in FIG. In FIG. 6, 13 is a light source that generates high-heat light such as an infrared lamp, 14 is a light condensing unit that is a concave reflecting mirror for condensing the high-heat light from the light source at the injection port forming position of the adhesive tape, 15
Is a light source control device for adjusting the output of the light source.
【００２０】実施例で用いたのと同様のレンズモールド
１を保持手段３により固定し、光源１３より発した高熱
光を集光部１４によって集光し、集光した高熱光をレン
ズモールド１の粘着テープの注入口形成位置に照射して
注入口を形成した。透明なテープの場合は、光が透過し
てしまうことからテープに例えば黒色の印点を描き、そ
の部分に高熱光を照射した。この注入口から実施例１と
同様の方法でプラスチック原料液を注入し、重合硬化さ
せた。このようにして得られたプラスチックレンズを実
施例１と同様の方法で検査した。その結果を表１に示
す。The same lens mold 1 as that used in the embodiment is fixed by the holding means 3, the high heat light emitted from the light source 13 is condensed by the light condensing section 14, and the condensed high heat light of the lens mold 1 is collected. The injection port was formed by irradiating the adhesive tape at the injection port formation position. In the case of a transparent tape, since light is transmitted, a black mark point was drawn on the tape, and the portion was irradiated with high heat light. A plastic raw material liquid was injected from this injection port in the same manner as in Example 1 to polymerize and cure. The plastic lens thus obtained was inspected in the same manner as in Example 1. Table 1 shows the results.
【００２１】（比較例１） 従来の第１の注入方法 実施例１で用いたのと同様のレンズモールドを用い、図
２に示すように、粘着テープのつなぎ合わせ部分を一部
剥して開口させ、この開口部からプラスチックレンズ原
料液を注入した。その後、実施例１と同様の方法で重合
硬化させた。このようにして得られたプラスチックレン
ズを実施例１と同様の方法で検査した。その結果を表１
に示す。Comparative Example 1 First Conventional Injection Method Using the same lens mold as that used in Example 1, as shown in FIG. The plastic lens raw material liquid was injected through this opening. Then, it was polymerized and cured in the same manner as in Example 1. The plastic lens thus obtained was inspected in the same manner as in Example 1. Table 1 shows the results.
Shown in
【００２２】（比較例２） 従来の第２の注入方法 図３に示すように、鋭利な先端形状を持つ注入管２を用
い、保持手段３によって固定された、実施例１で用いた
のと同様のレンズモールド１の粘着テープに注入管２を
突き刺し、その状態のままでプラスチック原料液を注入
した。その後、実施例１と同様の方法で重合硬化させ
た。このようにして得られたプラスチックレンズを実施
例１と同様の方法で検査した。その結果を表１に示す。(Comparative Example 2) Second conventional injection method As shown in FIG. 3, an injection tube 2 having a sharp tip shape was used, which was fixed by a holding means 3 and used in Example 1. The same adhesive tape of the lens mold 1 was pierced with the injection pipe 2, and the plastic raw material liquid was injected in that state. Then, it was polymerized and cured in the same manner as in Example 1. The plastic lens thus obtained was inspected in the same manner as in Example 1. Table 1 shows the results.
【００２３】[0023]
【表１】 [Table 1]
【００２４】表１から明らかなように、本発明の注入方
法によれば、比較例１の方法に比べて成形不良の発生を
大幅に低減することができ、かつ異物の混入を完全に防
止することができる。As is clear from Table 1, according to the injection method of the present invention, it is possible to significantly reduce the occurrence of molding defects as compared with the method of Comparative Example 1, and to completely prevent foreign matter from entering. be able to.
【００２５】[0025]
【発明の効果】以上述べたように、本発明によれば、粘
着テープの小片などの異物の混入によるプラスチックレ
ンズの外観上の重大欠点による不良及び原料液の漏れや
空気の侵入による成形不良の発生を防止することが可能
になり、高品質なプラスチックレンズの製造と生産性の
飛躍的向上を実現することができる。また第２の注入方
法のように、鋭利な先端形状を持つ注入管を用いる必要
がないため、ガラスの型との接触による外観不良の発生
やガラス型の損傷、注入管の先端形状が変形することに
よる注入管の不良交換や、先端形状の変形度合いの管理
から開放されることによる製造に係わる管理工数、費用
の大幅な削減をも可能となるなど、プラスチックレンズ
の品質向上、生産性の向上に多大の効果が得られる。As described above, according to the present invention, defects due to serious defects in the appearance of plastic lenses due to the inclusion of foreign matter such as small pieces of adhesive tape, and molding defects due to leakage of raw material liquid and air intrusion are caused. It is possible to prevent the occurrence, and it is possible to realize the production of high quality plastic lenses and the dramatic improvement in productivity. Further, unlike the second injection method, it is not necessary to use an injection pipe having a sharp tip shape, so that appearance failure due to contact with the glass mold, damage to the glass mold, and deformation of the injection pipe tip shape. It is possible to improve the quality and productivity of plastic lenses, such as the defective replacement of the injection pipe due to the above, and the management man-hours related to manufacturing and the drastic reduction of costs by freeing the control of the degree of deformation of the tip shape. A great effect can be obtained.
【図１】 従来のテープモールド法に用いられるレンズ
モールドの概略を示す見取り図。FIG. 1 is a sketch drawing showing an outline of a lens mold used in a conventional tape molding method.
【図２】 従来のプラスチックレンズの原料液を注入す
る第１の注入方法を示す概略図。FIG. 2 is a schematic view showing a first injection method for injecting a conventional raw material liquid for a plastic lens.
【図３】 従来のプラスチックレンズの原料液を注入す
る第２の注入方法を示す概略図。FIG. 3 is a schematic view showing a second injection method of injecting a raw material liquid for a conventional plastic lens.
【図４】 本発明による実施例１の加熱圧縮空気を用い
る加熱方法の概略図。FIG. 4 is a schematic view of a heating method using heated compressed air according to the first embodiment of the present invention.
【図５】 本発明による実施例２のレーザー光線を用い
る加熱方法の概略図。FIG. 5 is a schematic view of a heating method using a laser beam of Example 2 according to the present invention.
【図６】 本発明による実施例３の高熱光を用いる加熱
方法の概略図。FIG. 6 is a schematic view of a heating method using high heat light according to a third embodiment of the present invention.
【図７】 本発明によって形成された注入口の断面形状
を模式的に表した概略断面図。FIG. 7 is a schematic cross-sectional view schematically showing the cross-sectional shape of the injection port formed according to the present invention.
【図８】 本発明による加熱装置の基本構成を示す概略
図。FIG. 8 is a schematic diagram showing a basic configuration of a heating device according to the present invention.
１ レンズモールド ２ 注入管 ３ 保持手段 ４ コンプレッサー ５ 加熱器 ６ 温度制御装置 ７ 圧力調節弁 ８ 空気流量調節弁 ９ 加熱圧縮空気吐出管 １０ 炭酸ガスレーザー発生装置 １１ 炭酸ガスレーザー照射装置 １２ 加工台 １３ 光源 １４ 集光部 １５ 光源制御装置 １６ 発生装置 １７ 制御装置 １８ 距離調節手段 1 Lens Mold 2 Injection Pipe 3 Holding Means 4 Compressor 5 Heater 6 Temperature Control Device 7 Pressure Control Valve 8 Air Flow Rate Control Valve 9 Heating Compressed Air Discharge Pipe 10 Carbon Dioxide Laser Generator 11 Carbon Dioxide Laser Irradiator 12 Processing Table 13 Light Source 14 light condensing part 15 light source control device 16 generation device 17 control device 18 distance adjusting means
Claims (3)
２枚のガラス型の周面にまたがるように粘着テープを粘
着巻回してなるレンズモールドにプラスチックレンズの
原料液を注入するプラスチックレンズ原料液の注入方法
において、前記粘着テープの所定の位置にあらかじめ注
入口を形成した後、該注入口から前記原料液を注入する
ことを特徴とするプラスチックレンズ原料液の注入方
法。1. A plastic lens raw material liquid for injecting a plastic lens raw material liquid into a lens mold formed by adhesively winding an adhesive tape so that the molding surfaces thereof face the peripheral surfaces of two glass molds facing each other with a predetermined gap. The method for injecting a raw material liquid for a plastic lens, which comprises forming an injection port at a predetermined position of the adhesive tape in advance and then injecting the raw material liquid through the injection port.
局所的に加熱溶融することにより、前記注入口を形成す
ることを特徴とする請求項１記載のプラスチックレンズ
原料液の注入方法。2. The method of injecting a plastic lens material liquid according to claim 1, wherein the injection port is formed by locally heating and melting a predetermined position of the adhesive tape in a non-contact manner.
光のいずれかを用いて前記粘着テープの所定の位置を局
所的に加熱溶融することを特徴とする請求項２記載のプ
ラスチックレンズ原料液の注入方法。3. The injection of the plastic lens raw material liquid according to claim 2, wherein a predetermined position of the adhesive tape is locally heated and melted by using heated compressed air, laser light or high heat light. Method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24638495A JP3646743B2 (en) | 1995-09-25 | 1995-09-25 | Plastic lens raw material injection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24638495A JP3646743B2 (en) | 1995-09-25 | 1995-09-25 | Plastic lens raw material injection method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0985754A true JPH0985754A (en) | 1997-03-31 |
| JP3646743B2 JP3646743B2 (en) | 2005-05-11 |
Family
ID=17147742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24638495A Expired - Lifetime JP3646743B2 (en) | 1995-09-25 | 1995-09-25 | Plastic lens raw material injection method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3646743B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1810817A2 (en) | 2006-01-20 | 2007-07-25 | Seiko Epson Corporation | Mold forming method and apparatus, and plastic lens manufacturing method and apparatus |
| JP2008119912A (en) * | 2006-11-10 | 2008-05-29 | Seiko Epson Corp | Apparatus for molding resin injection hole, its method, and apparatus for manufacturing plastic lens |
| KR101050540B1 (en) * | 2010-12-22 | 2011-08-02 | 아이오솔루션(주) | Lens manufacturing apparatus |
-
1995
- 1995-09-25 JP JP24638495A patent/JP3646743B2/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1810817A2 (en) | 2006-01-20 | 2007-07-25 | Seiko Epson Corporation | Mold forming method and apparatus, and plastic lens manufacturing method and apparatus |
| EP1810817A3 (en) * | 2006-01-20 | 2008-06-25 | Seiko Epson Corporation | Mold forming method and apparatus, and plastic lens manufacturing method and apparatus |
| KR100854188B1 (en) * | 2006-01-20 | 2008-08-26 | 세이코 엡슨 가부시키가이샤 | Mold forming method and apparatus, and plastic lens manufacturing method and apparatus |
| US8262951B2 (en) | 2006-01-20 | 2012-09-11 | Seiko Epson Corporation | Mold forming method and apparatus, and plastic lens manufacturing method and apparatus |
| JP2008119912A (en) * | 2006-11-10 | 2008-05-29 | Seiko Epson Corp | Apparatus for molding resin injection hole, its method, and apparatus for manufacturing plastic lens |
| KR101050540B1 (en) * | 2010-12-22 | 2011-08-02 | 아이오솔루션(주) | Lens manufacturing apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3646743B2 (en) | 2005-05-11 |
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