JPH08323780A - Method and apparatus for releasing composite optical element - Google Patents
Method and apparatus for releasing composite optical elementInfo
- Publication number
- JPH08323780A JPH08323780A JP13505495A JP13505495A JPH08323780A JP H08323780 A JPH08323780 A JP H08323780A JP 13505495 A JP13505495 A JP 13505495A JP 13505495 A JP13505495 A JP 13505495A JP H08323780 A JPH08323780 A JP H08323780A
- Authority
- JP
- Japan
- Prior art keywords
- mold
- resin
- optical element
- glass lens
- composite optical
- 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
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、ガラス基材上に供給し
た樹脂を金型により押し拡げて所望の形状を成形する所
謂レプリカ成形法により複合型光学素子を成形した後、
その複合型光学素子を金型から離型する方法および装置
に関する。BACKGROUND OF THE INVENTION The present invention, after molding a composite type optical element by a so-called replica molding method in which a resin supplied on a glass substrate is spread by a mold to form a desired shape,
A method and apparatus for releasing the composite optical element from a mold.
【０００２】[0002]
【従来の技術】従来、上記レプリカ成形法による成形を
行った後の離型は、樹脂が金型表面に密着あるいは接着
してしまい成形品を容易に離型することができなかっ
た。よって、上記問題を解決すべく以下のような発明が
開発されている。例えば、特開平４−２４４８１９号公
報には、ガラス基材の輪郭に対応するような傾斜した環
状部を備えている筒状の離型部材により、ガラス基材の
一部に集中荷重をかけるように、そして、そこから所望
の範囲に沿って荷重が分散されるようにして離型すると
いう発明が提案されている。2. Description of the Related Art Conventionally, in mold release after molding by the above-mentioned replica molding method, the resin adheres to or adheres to the surface of the mold, so that the molded product cannot be easily released from the mold. Therefore, the following inventions have been developed to solve the above problems. For example, in Japanese Unexamined Patent Publication (Kokai) No. 4-244819, a concentrated load is applied to a part of a glass base material by a cylindrical release member having an inclined annular portion corresponding to the contour of the glass base material. Then, an invention has been proposed in which the mold is released so that the load is distributed along the desired range from the mold.
【０００３】[0003]
【発明が解決しようとする課題】しかるに、特開平４−
２４４８１９号公報の発明については、離型部材がガラ
ス基材の光学面に当て付くことで離型し、さらにその離
型部材は金型の外径より小さくはないので、ガラス基材
が光学有効径よりも大きな直径を有していなければ、離
型できないという欠点がある。つまり昨今の光学製品、
例えばカメラなどの小型化によって光学系およびレンズ
一枚にも小型化の要求が高まりを見せている状況下で、
離型をするためだけに必要な部分を残しておかなければ
ならないことは、設計の自由度という点からかなりのマ
イナス要因となるからである。DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention
With respect to the invention of Japanese Patent No. 244819, the release member is released by applying it to the optical surface of the glass substrate, and the release member is not smaller than the outer diameter of the mold. Therefore, the glass substrate is optically effective. If the diameter is larger than the diameter, the mold cannot be released. In other words, optical products of recent years,
For example, under the situation where demands for miniaturization of optical system and single lens are increasing due to miniaturization of cameras,
This is because it is a considerable negative factor in terms of the degree of freedom in design that it is necessary to leave a necessary part only for releasing the mold.
【０００４】よって、本発明は前記従来技術における欠
点に鑑みなされたもので、光学有効径と外径との差が殆
どないガラス基材でも容易に金型と成形品とを離型でき
る複合型光学素子の離型方法および装置を提供すること
を目的とする。Therefore, the present invention has been made in view of the above-mentioned drawbacks in the prior art, and a composite mold capable of easily releasing a mold and a molded product even with a glass substrate having almost no difference between the optically effective diameter and the outer diameter. An object of the present invention is to provide a method and apparatus for releasing an optical element.
【０００５】[0005]
【課題を解決するための手段】前記課題を解決するため
に、本発明は以下のように構成した。請求項１の発明
は、ガラス基材上に樹脂を供給し金型により前記樹脂を
ガラス基材上で押し拡げ、前記樹脂を硬化して複合型光
学素子を成形した後、成形品と金型とを分離するにあた
り、前記成形品の側面に離型部材を当接させることによ
り前記成形品と金型とを離型するようにした。In order to solve the above-mentioned problems, the present invention has the following constitution. According to a first aspect of the present invention, a resin is supplied onto a glass substrate, the resin is pushed and spread on the glass substrate by a mold, and the resin is cured to mold a composite type optical element, and then a molded product and a mold. In separating the mold and the mold, the mold and the mold are separated by bringing a mold release member into contact with the side surface of the mold.
【０００６】請求項２の発明は、ガラス基材上に樹脂を
供給し金型により前記樹脂をガラス基板上で押し拡げ、
前記樹脂を硬化して複合型光学素子を成形した後、成形
品と金型とを分離する複合型光学素子の離型装置におい
て、複合型光学素子の軸心に対し傾斜してガラス基材の
側面に当接、離反可能な離型部材を少なくとも２本以上
設けて構成した。According to a second aspect of the invention, the resin is supplied onto the glass substrate and the resin is pushed and spread on the glass substrate by a mold.
After molding the composite optical element by curing the resin, in a mold releasing apparatus for the composite optical element that separates the molded product and the mold, in the glass substrate tilted with respect to the axis of the composite optical element. At least two release members capable of contacting and separating from the side surface are provided.
【０００７】請求項３の発明は、請求項２にあって、離
型部材の長さが異なるように構成した。According to a third aspect of the present invention, in the second aspect, the releasing members have different lengths.
【０００８】請求項４の発明は、ガラス基材上に樹脂を
供給し金型により前記樹脂をガラス基板上で押し拡げ、
前記樹脂を硬化して複合型光学素子を成形した後、成形
品と金型とを分離する複合型光学素子の離型装置におい
て、ガラス基材の側面に当接、離反可能な弾性材からな
る拡縮可能な離型部材を設けるとともに、前記離型部材
の拡縮手段を設けて構成した。According to a fourth aspect of the present invention, the resin is supplied onto the glass substrate and the resin is pushed and spread on the glass substrate by a die.
In a mold release device for a composite optical element that separates a molded product from a mold after the resin is cured to form a composite optical element, the composite optical element is made of an elastic material capable of contacting and separating from the side surface of a glass base material. In addition to providing a mold-releasing release member, a means for expanding / contracting the mold-release member is provided.
【０００９】[0009]
【作用】請求項１、２の作用を図１〜図３を用いて説明
する。図１に示すように、金型１は図示しない駆動装置
により上下動可能なように構成され、その外周に離型部
材である２本以上のつめ８が矢印方向に移動可能なよう
に、しかも等間隔で位置しており、金型１の成形面１ａ
をガラスレンズ基材２上に塗布されたエネルギー硬化型
樹脂３に押し付けて、樹脂３に所望の形状のレンズ面を
成形し、加熱または紫外線照射等により樹脂３を硬化さ
せる。次に図２（ａ）に示すように、つめ８を同時に斜
め下方に移動させてガラスレンズ基材２の側面に当て付
け、さらにつめ８を移動を続けることによって、図２
（ｂ）に示すように、ガラスレンズ基材２の側面に力Ｆ
をかける。するとつめ８が当接したガラスレンズ基材２
側面の点ａが力点となり、金型１に密着している硬化し
た樹脂３の最外周部である点ｂが支点となる。この力Ｆ
は垂直方向の分力ＦＶと水平方向の分力ＦＨに分離され
る。そしてこの垂直方向の分力ＦＶと同様の力ＦＶ1が
樹脂３の最外周部である点ｂに加わる。すると点ｂには
樹脂３を金型１から引き離そうとする力ＦＶ2 が働き、
さらに点ａに水平方向の分力ＦＨが働くことによって点
ｂにおける樹脂３は金型１から剥離する。と同時に若干
ではあるが金型１の成形面１ａに沿って支点ｂが矢印Ｃ
の方向へずれ、以上の工程が連鎖的に続き、図３に示す
ように、樹脂面全体が成形面１ａから剥離する。以上の
手段および作用により光学有効径と外径との差が殆どな
いガラスレンズ基材でも容易に金型と成形品とを離型で
きる方法を得ることが可能になる。The operation of claims 1 and 2 will be described with reference to FIGS. As shown in FIG. 1, the mold 1 is configured to be movable up and down by a driving device (not shown), and two or more pawls 8 as mold release members are movable on the outer periphery thereof in the arrow direction. Molding surfaces 1a of the mold 1 that are located at equal intervals
Is pressed against the energy curable resin 3 applied on the glass lens base material 2 to form a lens surface of a desired shape on the resin 3, and the resin 3 is cured by heating or ultraviolet irradiation. Next, as shown in FIG. 2 (a), the pawls 8 are simultaneously moved obliquely downward to abut against the side surface of the glass lens substrate 2, and the pawls 8 are continued to move, thereby
As shown in (b), force F is applied to the side surface of the glass lens substrate 2.
multiply. Then, the glass lens substrate 2 with which the pawl 8 is in contact
A point a on the side surface serves as a force point, and a point b that is the outermost peripheral portion of the cured resin 3 that is in close contact with the mold 1 serves as a fulcrum. This force F
Is separated into a vertical component FV and a horizontal component FH. Then, a force FV 1 similar to the component force FV in the vertical direction is applied to the point b which is the outermost peripheral portion of the resin 3. Then, a force FV 2 for separating the resin 3 from the mold 1 is applied to the point b,
Further, a component force FH in the horizontal direction acts on the point a, so that the resin 3 at the point b is separated from the mold 1. At the same time, although slightly, the fulcrum b is indicated by the arrow C along the molding surface 1a of the mold 1.
, The above steps continue in a chain, and the entire resin surface is separated from the molding surface 1a as shown in FIG. By the means and actions described above, it becomes possible to obtain a method capable of easily releasing the mold from the molded product even with a glass lens substrate having almost no difference between the optically effective diameter and the outer diameter.
【００１０】請求項３にあっては、長さの異なる離型部
材が長い方から順次ガラスレンズ基材の側面に当接し、
短い離型部材の接触により力が働く樹脂と金型との境界
部が支点となるとともに、先に長い離型部材が接触して
いる部位が力点になり、長い離型部材が当接する部位に
接近し金型に密着している硬化した樹脂の最外周部であ
る境界部において、てこの原理により剥離が進行する。According to the third aspect of the present invention, the release members having different lengths come into contact with the side surface of the glass lens substrate in order from the longer side,
The fulcrum is the boundary between the resin and the mold, where the force is exerted by the contact of the short mold release member, and the part where the long mold release member contacts first becomes the power point, and the part where the long mold release member abuts At the boundary portion, which is the outermost peripheral portion of the cured resin that approaches and is in close contact with the mold, peeling proceeds according to the principle of leverage.
【００１１】請求項４にあっては、拡縮手段により離型
部材の内径を小さくし、離型部材の内径部でガラスレン
ズ基材の側面を挟持し、ガラスレンズ基材の内部方向に
離型する力を作用させる。According to a fourth aspect of the present invention, the inner diameter of the release member is reduced by the expansion / contraction means, the side surface of the glass lens base material is sandwiched by the inner diameter portion of the release member, and the mold release is performed inward of the glass lens base material. Apply the force to do.
【００１２】[0012]
［実施例１］本発明の実施例１を図４〜図６に基づいて
説明する。図４〜図６は本実施例の離型装置をその右側
半分を断面にして示す側面図で、図４は樹脂を供給した
ガラスレンズ基材を配置した状態、図５は離型開始時の
状態、図６は離型中の状態をそれぞれ示している。[Embodiment 1] Embodiment 1 of the present invention will be described with reference to FIGS. 4 to 6 are side views showing the mold releasing apparatus of the present embodiment with a right half section thereof, FIG. 4 shows a state in which a glass lens base material supplied with resin is arranged, and FIG. 5 shows a mold releasing start time. The state, FIG. 6 shows the state during mold release.
【００１３】複合型光学素子の成形用金型（以下、金
型）１は、その下端面に成形面１ａが設けられ、図示し
ない駆動装置によりその中心軸方向に上下動可能なよう
に構成されており、金型１の周囲には円筒状の離型機構
のカバー（以下、カバー）４が金型１を取り囲むように
配置されている。このカバー４には、その上部外側面か
ら下部内面に向かう方向に均等に３方向以上の貫通穴４
ａが開けられており、各貫通孔４ａには、金型１の下方
に配置したガラスレンズ基材２の外側面をチャッキング
するためのつめ８がカバー４の内面方向へ突出可能なよ
うに移動可能に挿入配置されている。カバー４の外周に
は円筒状の回転リング５がカバー４の周りを回転可能な
ように配置されており、回転リング５の下面にはかさば
歯車６が噛み合うように歯５ａが切られている。そして
カバー４と回転リング５との境目には、回転リング５の
内側に固着された形で雌ねじ７が前記つめ８に形成した
歯８ａと螺合するように配置されている。つまり、回転
リング５を回転させると、回転リング５に固着されてい
る雌ねじ７が回転リング５と共にカバー４の周り、すな
わちつめ８の周りを回転し、雌ねじ７に螺合されている
つめ８が貫通穴４ａに沿って上下動するように構成され
ている。そして回転リング５を回転させるためには金型
１の直交方向から延びたシャフト６ａにかさば歯車６を
接続し、これを図示しないモーター等の動力源により回
転させることによって行う。本チャック機構はチャッキ
ング内径が異なるのみで、他の機構は「ＪＩＳ Ｂ６０
０１ 工作機用ドリルチャック」と同様である。A molding die (hereinafter referred to as a die) 1 for a composite type optical element is provided with a molding surface 1a at its lower end surface and is configured to be vertically movable in the central axis direction by a driving device (not shown). A cover (hereinafter referred to as a cover) 4 having a cylindrical mold releasing mechanism is arranged around the mold 1 so as to surround the mold 1. The cover 4 has through-holes 4 in three or more directions evenly in the direction from the upper outer surface to the lower inner surface.
a is opened, and a pawl 8 for chucking the outer surface of the glass lens substrate 2 arranged below the mold 1 is provided in each through hole 4a so as to project toward the inner surface of the cover 4. It is movably inserted. A cylindrical rotating ring 5 is arranged on the outer periphery of the cover 4 so as to be rotatable around the cover 4, and teeth 5a are cut on the lower surface of the rotating ring 5 so that a bevel gear 6 meshes therewith. . At the boundary between the cover 4 and the rotary ring 5, the female screw 7 is fixed to the inside of the rotary ring 5 so as to be screwed with the teeth 8a formed on the pawl 8. That is, when the rotating ring 5 is rotated, the female screw 7 fixed to the rotating ring 5 rotates together with the rotating ring 5 around the cover 4, that is, around the pawl 8, so that the pawl 8 screwed to the female screw 7 is released. It is configured to move up and down along the through hole 4a. In order to rotate the rotary ring 5, a bevel gear 6 is connected to a shaft 6a extending in a direction orthogonal to the mold 1 and rotated by a power source such as a motor (not shown). This chuck mechanism is different only in chucking inner diameter, and other mechanism is "JIS B60".
01 Machine tool drill chuck ".
【００１４】金型１の下方には、前記ガラスレンズ基材
２を成形面２ａを上にした状態で保持するためのリング
状の基材受け部１０が、その軸と金型１の軸とを一致さ
せるように配置されている。さらに、ガラスレンズ基材
受け部１０の下方には紫外線照射ランプ１１が配置され
ている。Below the mold 1, there is provided a ring-shaped base material receiving portion 10 for holding the glass lens base material 2 with the molding surface 2a facing upward, and its shaft and the shaft of the mold 1. Are arranged to match. Further, an ultraviolet irradiation lamp 11 is arranged below the glass lens substrate receiving portion 10.
【００１５】以上のように構成される装置を用いて、複
合型光学素子を離型する方法を説明する。まずガラスレ
ンズ基材２の成形面２ａ上に紫外線硬化型樹脂３を図示
しないディスペンサーによって必要量吐出する。そして
樹脂３を供給したガラスレンズ基材２を基材受け部１０
に図示しない手段により搬送して保持させ、カバー４、
回転リング５、つめ８等からなる離型機構および金型１
を一体的に降下させる。この下降により金型１の成形面
１ａが樹脂３に接触して成形面１ａが樹脂３を成形面２
ａ上で押し拡げ、金型１の中心とガラスレンズ基材２の
中心距離が所望の間隔になったところで降下を停止す
る。その後紫外線照射ランプ１１を点灯し、樹脂３を硬
化させガラスレンズ基材２に硬化樹脂層を形成する。A method of releasing the composite optical element from the mold by using the apparatus constructed as described above will be described. First, the ultraviolet curable resin 3 is discharged onto the molding surface 2a of the glass lens substrate 2 in a required amount by a dispenser (not shown). Then, the glass lens substrate 2 to which the resin 3 is supplied is attached to the substrate receiving portion 10
Is carried and held by means not shown in FIG.
Mold release mechanism including rotating ring 5, pawl 8 and the like, and mold 1
To descend integrally. This lowering causes the molding surface 1a of the mold 1 to contact the resin 3 so that the molding surface 1a transfers the resin 3 to the molding surface 2
It is expanded on a and stopped when the distance between the center of the mold 1 and the center of the glass lens substrate 2 reaches a desired distance. After that, the ultraviolet irradiation lamp 11 is turned on to cure the resin 3 to form a cured resin layer on the glass lens substrate 2.
【００１６】次に、わずかに金型１および離型機構を上
昇させ、金型１と硬化樹脂層とガラスレンズ基材２の密
着体を基材受け部１０から離れるようにする。そして図
示しない動力源によりかさば歯車６に動力を伝達させ、
回転リング５を回転させる。そうすることによって均等
間隔にカバー４内に挿入されている３本以上のつめ８が
カバー４の内面から均等にガラスレンズ基材２の側面に
向かって下方に出てくる。さらに回転リング５を回転さ
せ続けるとつめ８はさらに飛び出してくるので、つめ８
の先端はガラスレンズ基材２の側面に接触する。この接
触の状態は点、面接触のいずれでも構わないが、出来る
だけ応力集中させずにガラスレンズ基材２に力をかける
ためには面、線接触が望ましいので、面および線でつめ
８先端が基材２側面に接触するように加工する。さらに
回転リング５の回転を続けると、つめ８による基材２側
面にかかる力が増大してくる。すると前記「作用の項」
で記載したと同じ作用により離型が完了する。Next, the mold 1 and the mold releasing mechanism are slightly raised so that the contact body of the mold 1, the cured resin layer and the glass lens substrate 2 is separated from the substrate receiving portion 10. Then, the power is transmitted to the bevel gear 6 by a power source (not shown),
The rotating ring 5 is rotated. By doing so, the three or more pawls 8 inserted into the cover 4 at equal intervals come out evenly downward from the inner surface of the cover 4 toward the side surface of the glass lens substrate 2. If you continue to rotate the rotating ring 5, the pawl 8 will pop out further.
The tip of the is in contact with the side surface of the glass lens substrate 2. The state of this contact may be either point or surface contact, but in order to apply a force to the glass lens substrate 2 without concentrating stress as much as possible, surface and line contact is desirable. Is processed so as to contact the side surface of the base material 2. When the rotation of the rotary ring 5 is further continued, the force exerted by the pawl 8 on the side surface of the base material 2 increases. Then, the above-mentioned "term of action"
The mold release is completed by the same action as described in 1.
【００１７】本実施例によれば光学有効径と外径との差
が殆どないガラス基材でも容易に金型と成形品とを離型
できる。According to this embodiment, the mold and the molded product can be easily separated from each other even with the glass substrate having almost no difference between the optically effective diameter and the outer diameter.
【００１８】［実施例２］本発明の実施例２を図７に基
づいて説明する。図７は本実施例の離型装置の要部を示
す側面図で、離型時の状態を示している。本実施例で
は、図７に示すように、２本以上設けたつめ８の長さが
少なくとも２種類以上になるように設定されており、こ
のつめ８の長さがそれぞれ微妙に異なる点が実施例１と
異なるだけで、他の構成は同様なので、それ以外の説明
は省略する。[Second Embodiment] A second embodiment of the present invention will be described with reference to FIG. FIG. 7 is a side view showing a main part of the mold releasing apparatus of this embodiment, showing a state at the time of mold releasing. In this embodiment, as shown in FIG. 7, the lengths of two or more pawls 8 are set to be at least two types, and the lengths of the pawls 8 are slightly different from each other. The configuration is the same as in Example 1 except for the points that are the same as in Example 1, and the other description will be omitted.
【００１９】本実施例の装置による離型方法を説明す
る。なお、必要に応じて図４を参照しつつ説明する。複
合型光学素子を成形し、離型工程におけるつめ８が接触
する直前までは実施例１と全く同様なので、それ以降に
ついて、長さがそれぞれ異なるつめ８ａ、８ｂ、８ｃを
用いて離型を行う場合を説明する。A mold releasing method using the apparatus of this embodiment will be described. Note that description will be made with reference to FIG. 4 as necessary. The composite optical element is molded and is completely the same as that of the first embodiment until just before the pawl 8 comes into contact in the releasing step, so that after that, the pawls 8a, 8b and 8c having different lengths are used for the releasing. The case will be described.
【００２０】紫外線照射し樹脂３の硬化が完了した後に
回転リング５を回転させると、つめ８がカバー４から飛
び出して、やがてつめ８が長い方から短い順にガラスレ
ンズ基材２の側面に接触する。すなわち、つめ８の長さ
が全部異なる場合、つめ８の中で最も長いつめ８ａがま
ず接触し、次にそれよりも短いつめ８ｂが接触する。そ
して、次につめ８ｂよりも短いつめ８ｃ（図示省略）が
接触する。このとき、もし長さの組合せが、１本の長い
つめ８ａと、２本の同じ長さからなる短いつめ８ｂ、８
ｃという２種類ならば、ガラスレンズ基材２の側面につ
め８ａが接触した後、つめ８ｂ、８ｃが同時に接触す
る。逆に２本の同じ長さからなる長いつめ８ａ、８ｂ
と、１本の短いつめ８ｃの組み合わせならば、ガラスレ
ンズ基材２の側面につめ８ａ、８ｂが接触した後、８ｃ
が接触する。When the rotary ring 5 is rotated after the resin 3 has been cured by being irradiated with ultraviolet rays, the pawl 8 pops out of the cover 4, and eventually the pawl 8 comes into contact with the side surface of the glass lens substrate 2 in the order from the longest to the shortest. . That is, when the lengths of the pawls 8 are all different, the longest pawl 8a of the pawls 8 comes into contact first, and then the pawl 8b shorter than the pawls 8a comes into contact therewith. Then, next, a pawl 8c (not shown) shorter than the pawl 8b contacts. At this time, if the combination of lengths is one long pawl 8a and two short pawls 8b, 8 of the same length.
In the case of two types, c, after the pawl 8a contacts the side surface of the glass lens substrate 2, the pawls 8b and 8c contact at the same time. On the contrary, two long pawls 8a and 8b having the same length
If the combination of one short pawl 8c and 8c after the pawls 8a and 8b contact the side surface of the glass lens substrate 2,
Come into contact with.
【００２１】まず最初のつめ８ａが接触すると、前記
「作用の項」で説明したとおりの作用が樹脂３と金型１
の境界部ｂに働く。When the first claw 8a comes into contact with the resin, the resin 3 and the mold 1 have the same function as described in the above section "Function".
Work on the boundary b.
【００２２】次につめ８ａよりも短いつめ８ｂが接触し
ても同様な作用が働く。しかし、それぞれのつめ８ａ、
８ｂが接触しているガラスレンズ基材２の側面にかかる
力Ｆは後から接触する方、すなわち短いつめ８ｂによる
方が必ず小さくなる。つまり剥離の進行が、初めに接触
したつめ８ａの付近よりも遅くなる。すると、短いつめ
８ｂの接触により力が働く樹脂３と金型１の境界部ｂ1
が支点となり、長いつめ８ａが接触し既にａ1 部より力
がかかっているａ部が力点になり、てこの原理によりｂ
部に剥離が進行する。Next, even when the pawl 8b shorter than the pawl 8a comes into contact with the pawl 8a, the same operation is performed. However, each claw 8a,
The force F exerted on the side surface of the glass lens substrate 2 with which 8b is in contact is always smaller in the later contact, that is, due to the shorter pawl 8b. In other words, the progress of peeling is slower than in the vicinity of the claw 8a that was first contacted. Then, a boundary portion b 1 between the resin 3 and the mold 1 in which a force is exerted by the contact of the short pawl 8b.
B but it becomes a fulcrum, a portion that affects long claws 8a contacts already force than 1 part a becomes emphasis, Te this principle
Peeling progresses to the part.
【００２３】次につめ８ｂより短い３本目以降のつめ８
ｃが接触しても、長いつめ８ａと短いつめ８ｂの関係と
同様に、つめ８ｃが接触した点ａ2 （図示省略）付近の
境界部ｂ2 （図示省略）が支点となり、つめ８ｃが接触
する前につめ８ｂの接触した点ａ1 が力点となり、その
点でも剥離が進行し、樹脂３と金型１との境界面全てが
剥離する。Next, the third and subsequent pawls 8 shorter than the pawl 8b
Even if c touches, similar to the relationship between the long pawl 8a and the short pawl 8b, the boundary portion b 2 (not shown) near the point a 2 (not shown) where the pawl 8c contacts serves as a fulcrum, and the pawl 8c makes contact. Before that, the point a 1 where the pawl 8b comes into contact becomes a force point, and peeling also progresses at that point, and the entire boundary surface between the resin 3 and the mold 1 peels off.
【００２４】本実施例によれば実施例１と同様、光学有
効径と外径との差が殆どないガラス基材でも容易に金型
と成形品とを離型できるということに加えて、力点と作
用点までの距離を長くすることが可能になるので、より
小さな力で剥離させることが可能になる。According to the present embodiment, as in the first embodiment, in addition to the fact that the mold and the molded product can be easily separated from each other even with the glass substrate having almost no difference between the optical effective diameter and the outer diameter, Since it is possible to increase the distance to the action point, peeling can be performed with a smaller force.
【００２５】［実施例３］本発明の実施例３を図８およ
び図９に基づいて説明する。図８および図９は本実施例
の離型装置をその右側半分を断面にして示す側面図で、
図８は樹脂を押圧成形している状態、図９は離型中の状
態をそれぞれ示している。[Third Embodiment] A third embodiment of the present invention will be described with reference to FIGS. 8 and 9. FIG. 8 and FIG. 9 are side views showing the mold releasing apparatus of this embodiment with its right half sectioned in section.
FIG. 8 shows a state where the resin is press-molded, and FIG. 9 shows a state where the resin is being released.
【００２６】複合型光学素子の成形用金型（以下、金
型）１は、図示しない駆動装置によりその中心軸方向に
上下動可能なように構成され、その金型１の外側にはス
プリングコレット１２が金型１と中心軸を同一にして配
置されている。スプリングコレット１２の下部外周には
末広がり状のテーパ部１２ａが形成され、テーパ部１２
上方の外周には雄ねじ１２ｂが螺設されている。スプリ
ングコレット１２の外周には、スプリングコレット１２
の内径を絞り込むための締め込みリング１３が配置され
ている。締め込みリング１３の下部内周には前記テーパ
部１２ａと面接触するテーパ部１３ａが設けられるとと
もに、テーパ部１３ａ上方の内周には前記雌ねじ１３ｂ
が切られており、スプリングコレット１２と締め込みリ
ング１３とは雄ねじ１２ｂと雄ねじ１３ｂを介して螺合
されている。この金型１とスプリングコレット１２およ
び締め込みリング１３は個別に上下動可能なように構成
されている。前記締め込みリング１３の外周にはモータ
１５の回転軸に取り付けたプーリ１６に巻回したタイミ
ングベルト１４が巻回されており、モータ１５の回転に
よって締め込みリング１３がスプリングコレット１２の
周りを回転してネジ作用により締め込みリング１３が上
下動し、テーパ部１２ａとテーパ部１３ａの摺接により
スプリングコレット１２の下端部内径が拡縮可能なよう
に構成されている。A molding die (hereinafter referred to as a die) 1 for the composite type optical element is constructed so as to be vertically movable in the direction of its central axis by a driving device (not shown), and a spring collet is provided outside the die 1. 12 is arranged so that the central axis thereof is the same as that of the mold 1. On the outer periphery of the lower portion of the spring collet 12, a taper portion 12a having a diverging shape is formed.
A male screw 12b is screwed on the upper outer circumference. On the outer periphery of the spring collet 12, the spring collet 12
A tightening ring 13 is arranged for narrowing the inner diameter of the. A taper portion 13a is provided on the inner periphery of the lower portion of the tightening ring 13 so as to make surface contact with the taper portion 12a, and the female screw 13b is provided on the inner periphery above the taper portion 13a.
Is cut, and the spring collet 12 and the tightening ring 13 are screwed together via the male screw 12b and the male screw 13b. The mold 1, the spring collet 12, and the tightening ring 13 are configured to be vertically movable individually. A timing belt 14 wound around a pulley 16 attached to a rotation shaft of a motor 15 is wound around the outer circumference of the tightening ring 13, and the tightening ring 13 is rotated around the spring collet 12 by the rotation of the motor 15. Then, the tightening ring 13 moves up and down by the screw action, and the inner diameter of the lower end portion of the spring collet 12 can be expanded and contracted by the sliding contact between the tapered portion 12a and the tapered portion 13a.
【００２７】ガラスレンズ基材２を受けるための基材受
け部、紫外線を照射するための紫外線照射ランプの位置
構成は実施例１と同様なので、その図示および説明は省
略する。The substrate receiving portion for receiving the glass lens substrate 2 and the ultraviolet irradiation lamp for irradiating the ultraviolet rays have the same positional configuration as that of the first embodiment, and therefore the illustration and description thereof will be omitted.
【００２８】次に、本実施例の装置による複合型光学素
子の離型方法を説明する。まず紫外線硬化型樹脂３が吐
出済みのガラスレンズ基材２をその中心軸と金型１の中
心軸が一致するように搬送（図示省略）し、ガラスレン
ズ基材２および金型１が相対的に接近するように上動お
よび下動させ、樹脂３が所望の厚みになるまで金型１の
成形面１ａでガラスレンズ基材２の成形面２ａ上に樹脂
３を押し拡げる。ついで紫外線照射ランプ（図示省略）
により紫外線をガラスレンズ基材２の下方から照射し、
樹脂３を硬化させ、複合型光学素子を成形する。Next, a method of releasing the composite optical element by the apparatus of this embodiment will be described. First, the glass lens substrate 2 on which the ultraviolet curable resin 3 has been discharged is conveyed (not shown) so that the central axis of the glass lens substrate 2 and the central axis of the mold 1 coincide with each other, and the glass lens substrate 2 and the mold 1 are relatively moved. By moving the resin 3 upward and downward so that the resin 3 has a desired thickness, the molding surface 1a of the mold 1 spreads the resin 3 on the molding surface 2a of the glass lens substrate 2. Then UV irradiation lamp (not shown)
By irradiating ultraviolet rays from below the glass lens substrate 2,
The resin 3 is cured to form a composite optical element.
【００２９】紫外線の照射により樹脂３が硬化した後、
金型１とガラスレンズ基材２と樹脂３との密着体を若干
上昇させ、ガラスレンズ基材２が基材受け部（図示省
略）から離れるようにする。この時スプリングコレット
１２はその下部内面がガラスレンズ基材２の側面をチャ
ック可能な位置にしておく。After the resin 3 is cured by irradiation with ultraviolet rays,
The contact body between the mold 1, the glass lens substrate 2 and the resin 3 is slightly raised so that the glass lens substrate 2 is separated from the substrate receiving portion (not shown). At this time, the inner surface of the lower part of the spring collet 12 is set to a position where the side surface of the glass lens substrate 2 can be chucked.
【００３０】次にモータ１５を回転させ、タイミングベ
ルト１４を介して締め込みリング１３をスプリングコレ
ット１２の周りで回転し、雄ねじ１２ｂと雌ねじ１３ｂ
との作用により締め込みリング１３を下降させ、スプリ
ングコレット１２のテーパ部１２ａと締め込みリング１
３のテーパ部１３ａを当接させる。さらに締め込みリン
グ１３を下降させることによって、テーパ部１３ａ、１
２ａの内外径差によりスプリングコレット１２の内径を
小さくし、ガラスレンズ基材２の外周をスプリングコレ
ット１２の内面でチャックする。さらに締め込みリング
１３を回転して下降させると、図９に示すように、さら
にガラスレンズ基材２の外周部には内方向の力がかか
り、実施例１同様にガラスレンズ基材２と樹脂３との密
着体が成形品として金型１から剥離する。Next, the motor 15 is rotated, the tightening ring 13 is rotated around the spring collet 12 via the timing belt 14, and the male screw 12b and the female screw 13b are rotated.
The tightening ring 13 is lowered by the action of and the taper portion 12a of the spring collet 12 and the tightening ring 1
The taper part 13a of No. 3 is made to contact. By further lowering the tightening ring 13, the tapered portions 13a, 1a
The inner diameter of the spring collet 12 is reduced by the difference between the inner and outer diameters of 2a, and the outer circumference of the glass lens substrate 2 is chucked by the inner surface of the spring collet 12. When the tightening ring 13 is further rotated and lowered, an inward force is further applied to the outer peripheral portion of the glass lens substrate 2 as shown in FIG. The adhered body with 3 is separated from the mold 1 as a molded product.
【００３１】[0031]
【発明の効果】以上説明したように本発明の請求項１〜
４によれば、離型部材をガラス基材の側面に当接するこ
とにより、光学有効径と外径との差が殆どないガラス基
材でも容易に金型と成形品とを離型することができる。As described above, the first to third aspects of the present invention are described.
According to 4, by contacting the mold release member to the side surface of the glass base material, the mold and the molded product can be easily released from the glass base material having almost no difference between the optically effective diameter and the outer diameter. it can.
【図１】本発明の作用を説明するための説明図で、樹脂
を押圧成形している状態を示している。FIG. 1 is an explanatory diagram for explaining the operation of the present invention, showing a state in which a resin is press-molded.
【図２】本発明の作用を説明するための説明図で、図２
（ａ）は離型開始時の状態を示し、図２（ｂ）はガラス
基材および硬化樹脂に作用する力を示している。FIG. 2 is an explanatory diagram for explaining the operation of the present invention.
(A) shows the state at the start of mold release, and FIG. 2 (b) shows the force acting on the glass substrate and the cured resin.
【図３】本発明の作用を説明するための説明図で、離型
中の状態を示している。FIG. 3 is an explanatory diagram for explaining the operation of the present invention, showing a state during mold release.
【図４】本発明の実施例１の離型装置をその右半分を断
面にして示す側面図で、樹脂を供給したガラスレンズ基
材を配置した状態を示している。FIG. 4 is a side view showing the mold release apparatus of Embodiment 1 of the present invention with its right half sectioned, showing a state in which a glass lens base material to which a resin is supplied is arranged.
【図５】本発明の実施例１の離型装置をその右半分を断
面にして示す側面図で、離型開始時の状態を示してい
る。FIG. 5 is a side view showing the mold releasing apparatus according to the first embodiment of the present invention with its right half sectioned, showing a state at the time of starting mold releasing.
【図６】本発明の実施例１の離型装置をその右半分を断
面にして示す側面図で、離型中の状態を示している。FIG. 6 is a side view showing the mold releasing apparatus according to the first embodiment of the present invention with its right half sectioned, showing a state during mold releasing.
【図７】本発明の実施例２の離型装置の要部を示す側面
図である。FIG. 7 is a side view showing a main part of a mold releasing device according to a second embodiment of the present invention.
【図８】本発明の実施例３の離型装置をその右半分を断
面にして示す側面図で、樹脂を押圧成形している状態を
示している。FIG. 8 is a side view showing a mold releasing apparatus according to a third embodiment of the present invention with its right half sectioned in section, showing a state where resin is press-molded.
【図９】本発明の実施例３の離型装置をその右半分を断
面にして示す側面図で、離型中の状態を示している。FIG. 9 is a side view showing a mold releasing apparatus according to a third embodiment of the present invention with its right half sectioned, showing a state during mold releasing.
１ 金型 ２ ガラスレンズ基材 ３ 紫外線硬化型樹脂 ４ カバー ５ 回転リング ６ はすば歯車 ８ つめ １２ スプリングコレット １３ 締め込みリング １４ タイミングベルト １５ モータ 1 Mold 2 Glass Lens Substrate 3 Ultraviolet Curing Resin 4 Cover 5 Rotating Ring 6 Helical Gear 8th Gear 12 Spring Collet 13 Tightening Ring 14 Timing Belt 15 Motor
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｂ２９Ｌ 11:00 ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification code Office reference number FI technical display location B29L 11:00
Claims (4)
前記樹脂をガラス基材上で押し拡げ、前記樹脂を硬化し
て複合型光学素子を成形した後、成形品と金型とを分離
するにあたり、前記成形品の側面に離型部材を当接させ
ることにより前記成形品と金型とを離型することを特徴
とする複合型光学素子の離型方法。1. A resin is supplied onto a glass substrate, the resin is pushed and spread on the glass substrate by a mold, and the resin is cured to mold a composite type optical element. A method for releasing a composite-type optical element, characterized in that, at the time of separation, a mold releasing member is brought into contact with a side surface of the molded product to release the molded product from the mold.
前記樹脂をガラス基板上で押し拡げ、前記樹脂を硬化し
て複合型光学素子を成形した後、成形品と金型とを分離
する複合型光学素子の離型装置において、複合型光学素
子の軸心に対し傾斜してガラス基材の側面に当接、離反
可能な離型部材を少なくとも２本以上設けたことを特徴
とする複合型光学素子の離型装置。2. A resin is supplied onto a glass substrate, the resin is pushed and spread on a glass substrate by a mold, the resin is cured to mold a composite optical element, and then a molded product and a mold are separated. In the mold releasing apparatus for a composite optical element, at least two mold releasing members are provided, which are inclined with respect to the axis of the composite optical element and can contact and separate from the side surface of the glass substrate. Mold release device for composite optical element.
を特徴とする請求項２記載の複合型光学素子の離型装
置。3. The mold releasing apparatus for a composite optical element according to claim 2, wherein the mold releasing members have different lengths.
前記樹脂をガラス基板上で押し拡げ、前記樹脂を硬化し
て複合型光学素子を成形した後、成形品と金型とを分離
する複合型光学素子の離型装置において、ガラス基材の
側面に当接、離反可能な弾性材からなる拡縮可能な離型
部材を設けるとともに、前記離型部材の拡縮手段を設け
たことを特徴とする複合型光学素子の離型装置。4. A resin is supplied onto a glass substrate, the resin is spread and spread on a glass substrate by a mold, the resin is cured to mold a composite optical element, and then a molded product and a mold are separated. In the mold releasing apparatus for a composite type optical element, which is characterized in that an expandable / contractible releasing member made of an elastic material capable of contacting and separating from the side surface of the glass substrate is provided, and an expanding / contracting means for the releasing member is provided. Mold release device for composite optical element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13505495A JPH08323780A (en) | 1995-06-01 | 1995-06-01 | Method and apparatus for releasing composite optical element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13505495A JPH08323780A (en) | 1995-06-01 | 1995-06-01 | Method and apparatus for releasing composite optical element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08323780A true JPH08323780A (en) | 1996-12-10 |
Family
ID=15142840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13505495A Pending JPH08323780A (en) | 1995-06-01 | 1995-06-01 | Method and apparatus for releasing composite optical element |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08323780A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003094460A (en) * | 2001-09-27 | 2003-04-03 | Nikon Corp | Method and apparatus for manufacturing resin-bonded optical element |
| JP2007203699A (en) * | 2006-02-06 | 2007-08-16 | Nippon Seiki Kenkyusho:Kk | Method for removing contact lens after mold opening |
| JP2010513077A (en) * | 2006-12-21 | 2010-04-30 | ボシュ・アンド・ロム・インコーポレイテッド | Apparatus and method for removing a molded lens in a cavity between rear and front mold parts |
| JP2010173196A (en) * | 2009-01-29 | 2010-08-12 | Sharp Corp | Molding method, molding device, molding die, manufacturing method of arrayed optical element plate, manufacturing method of electron device module and electronic intelligence equipment |
| JP2018153791A (en) * | 2017-03-21 | 2018-10-04 | 芝浦メカトロニクス株式会社 | Protective membrane formation device |
-
1995
- 1995-06-01 JP JP13505495A patent/JPH08323780A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003094460A (en) * | 2001-09-27 | 2003-04-03 | Nikon Corp | Method and apparatus for manufacturing resin-bonded optical element |
| JP2007203699A (en) * | 2006-02-06 | 2007-08-16 | Nippon Seiki Kenkyusho:Kk | Method for removing contact lens after mold opening |
| JP2010513077A (en) * | 2006-12-21 | 2010-04-30 | ボシュ・アンド・ロム・インコーポレイテッド | Apparatus and method for removing a molded lens in a cavity between rear and front mold parts |
| JP2010173196A (en) * | 2009-01-29 | 2010-08-12 | Sharp Corp | Molding method, molding device, molding die, manufacturing method of arrayed optical element plate, manufacturing method of electron device module and electronic intelligence equipment |
| JP2018153791A (en) * | 2017-03-21 | 2018-10-04 | 芝浦メカトロニクス株式会社 | Protective membrane formation device |
| JP2021130112A (en) * | 2017-03-21 | 2021-09-09 | 芝浦メカトロニクス株式会社 | Protective film forming device |
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