JPH11105144A - Molding of composite optical element - Google Patents
Molding of composite optical elementInfo
- Publication number
- JPH11105144A JPH11105144A JP27097397A JP27097397A JPH11105144A JP H11105144 A JPH11105144 A JP H11105144A JP 27097397 A JP27097397 A JP 27097397A JP 27097397 A JP27097397 A JP 27097397A JP H11105144 A JPH11105144 A JP H11105144A
- Authority
- JP
- Japan
- Prior art keywords
- resin layer
- base material
- molding
- shape
- glass substrate
- 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
- 230000003287 optical effect Effects 0.000 title claims abstract description 86
- 239000002131 composite material Substances 0.000 title claims abstract description 33
- 238000000465 moulding Methods 0.000 title claims abstract description 32
- 239000011347 resin Substances 0.000 claims abstract description 82
- 229920005989 resin Polymers 0.000 claims abstract description 82
- 239000000463 material Substances 0.000 claims abstract description 26
- 238000000034 method Methods 0.000 claims abstract description 20
- 230000001678 irradiating effect Effects 0.000 claims abstract description 6
- 239000000758 substrate Substances 0.000 claims description 67
- 239000011521 glass Substances 0.000 description 54
- 230000000694 effects Effects 0.000 description 5
- 238000003825 pressing Methods 0.000 description 4
- 239000006087 Silane Coupling Agent Substances 0.000 description 3
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 3
- 229910052753 mercury Inorganic materials 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Surface Treatment Of Glass (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、ガラス基材等の基
材上にエネルギー硬化型の樹脂を塗布して所望の形状の
複合型光学素子に成形する方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for applying an energy-curable resin to a substrate such as a glass substrate and molding the resin into a composite optical element having a desired shape.
【０００２】[0002]
【従来の技術】特開昭６３−２２５５５７号公報には、
複合型光学素子の従来の製造方法が記載されている。こ
の方法は図１１に示すように、ガラス基材１００の樹脂
層形成面１１にスリ面部１２０を形成するものである。
スリ面部１２０は樹脂層形成面１１０の外周部分にリン
グ状に形成されており、スリ面部１２０に樹脂が食い込
むため、樹脂とガラス基材１００とを良好に密着させる
ことができる。2. Description of the Related Art JP-A-63-225557 discloses that
A conventional method for manufacturing a composite optical element is described. In this method, as shown in FIG. 11, a sand surface portion 120 is formed on the resin layer forming surface 11 of the glass substrate 100.
The sand surface portion 120 is formed in a ring shape on the outer peripheral portion of the resin layer forming surface 110, and the resin penetrates into the sand surface portion 120, so that the resin and the glass substrate 100 can be brought into good contact with each other.
【０００３】この方法においては、外形々状が円形とな
っているガラス基材１００を使用するものであり、成形
される複合型光学素子も同様に光軸に対して軸対称とな
っている。In this method, a glass substrate 100 having a circular outer shape is used, and a composite optical element to be molded is also axially symmetric with respect to the optical axis.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、カメラ
に使用されているフィルムの多くは長方形なので、フィ
ルム面に達する光線は必ずしもガラス基材の中心軸を中
心とする軸対称形状である必要はない。従って、複合型
光学素子の光学性能に関係がある有効直径自体必ずしも
軸対称形状である必要はない。このことは、設計時に少
しでも不必要な部分を削りたいという要求があるコンパ
クトカメラ等においては軸対称形状というのは無駄なも
のである。However, since most of the films used in cameras are rectangular, the light rays reaching the film surface do not necessarily have to be axisymmetric about the central axis of the glass substrate. Therefore, the effective diameter pertaining to the optical performance of the composite optical element does not necessarily have to be axially symmetric. This is a waste of the axially symmetric shape in a compact camera or the like in which there is a need to cut off an unnecessary portion at the time of design.
【０００５】本発明は、このような事情を考慮してなさ
れたもので、球面レンズの不要な部分を除去した後に、
非球面の樹脂層を成形することにより全周もしくはその
一部を非軸対称とすることができる複合型光学素子の成
形方法を提供することを目的とする。The present invention has been made in view of such circumstances, and after removing unnecessary portions of a spherical lens,
An object of the present invention is to provide a molding method of a composite optical element in which the entire circumference or a part thereof can be made non-axially symmetric by molding an aspherical resin layer.
【０００６】[0006]
【課題を解決するための手段】上記目的を達成するた
め、請求項１の発明は、基材の光学面上に形成されたエ
ネルギー硬化型の樹脂層にエネルギーを照射して、樹脂
層を硬化させる複合型光学素子の成形方法において、外
径が円形々状で且つ光学面が球面形状である軸対称形状
の基材を、その光軸を中心とした非軸対称形状に加工す
る工程と、非軸対称形状に加工した基材の光学面上にエ
ネルギー硬化型の樹脂を供給する工程と、基材の光学面
上に供給された樹脂を所望の形状の樹脂層に成形する工
程と、成形した樹脂層にエネルギーを照射して樹脂層を
硬化させ、非球面形状とする工程と、を有することを特
徴とする。In order to achieve the above object, according to the first aspect of the present invention, an energy-curable resin layer formed on an optical surface of a substrate is irradiated with energy to cure the resin layer. In the method of molding a composite optical element, a process of processing an axisymmetric substrate having an outer diameter of a circular shape and a spherical optical surface, a non-axisymmetric shape centered on the optical axis, A step of supplying an energy-curable resin on the optical surface of the substrate processed into a non-axisymmetric shape, a step of molding the resin supplied on the optical surface of the substrate into a resin layer having a desired shape, and molding. Irradiating the formed resin layer with energy to cure the resin layer to form an aspherical shape.
【０００７】この発明では、軸対称形状の基材を、その
光軸を中心とした非軸対称形状に加工した後、基材の光
学面上に樹脂層を形成し、硬化することによって非球面
形状とする。このため、複合型光学素子を非軸対称とす
ることができる。In the present invention, an aspherical surface is formed by processing a substrate having an axisymmetric shape into a non-axisymmetrical shape with its optical axis as a center, forming a resin layer on the optical surface of the substrate, and curing the resin layer. Shape. For this reason, the composite optical element can be made non-axially symmetric.
【０００８】従って、複合型光学素子の光学性能上不要
な部分を取り除くことにより、この不要な部分がスペー
スとなるため、光学機器の機能上、必要な他の部材をス
ペースに収めることができ、光学機器をコンパクトにす
ることができる。Therefore, by removing unnecessary portions in terms of the optical performance of the composite optical element, the unnecessary portions become a space, so that other members necessary for the function of the optical apparatus can be accommodated in the space. Optical equipment can be made compact.
【０００９】請求項２の発明は、請求項１の発明であっ
て、前記基材における非軸対称形状に加工した部分に当
接部材を当接し、基材と当接部材とを組み合わせた形状
を略軸対称形状とする工程と、基材の光学面上の樹脂層
を硬化させた後、当接部材を基材から分離する工程と、
基材の光学面上以外に存在する樹脂層を除去する工程
と、を有することを特徴とする。According to a second aspect of the present invention, in the first aspect of the present invention, a contact member is brought into contact with a portion of the base material processed into a non-axisymmetric shape, and the base member and the contact member are combined. A step of making the substantially axially symmetric shape, and after curing the resin layer on the optical surface of the substrate, a step of separating the contact member from the substrate,
Removing the resin layer existing on the optical surface of the base material other than on the optical surface of the base material.
【００１０】この発明では、非軸対称形状の基材に当接
部材を当接させ、この当接状態で樹脂層を硬化させ、そ
の後、基材の光学面上以外に存在する樹脂層を除去する
ため、基材と樹脂層の外径形状を光学的有効径と同様に
することができ、光学系をより小径とすることができ
る。In the present invention, the contact member is brought into contact with the non-axially symmetric base material, and the resin layer is cured in this contact state, and thereafter, the resin layer existing on portions other than the optical surface of the base material is removed. Therefore, the outer diameters of the substrate and the resin layer can be made the same as the optically effective diameter, and the optical system can be made smaller.
【００１１】請求項３の発明は、請求項１の発明であっ
て、前記基材における非軸対称形状に加工した部分に当
接部材を当接させ、基材の光学面上の樹脂を金型によっ
て押圧して樹脂層とし、この金型、前記当接部材及び基
材によって樹脂を成形するキャビティを形成することを
特徴とする。According to a third aspect of the present invention, in the first aspect of the present invention, a contact member is brought into contact with the non-axially symmetrical portion of the base material, and the resin on the optical surface of the base material is made of gold. A resin layer is formed by pressing with a mold, and a cavity for molding a resin is formed by the mold, the contact member, and the base material.
【００１２】この発明では、基材と、基材に当接した当
接部材と、樹脂層を押圧する金型とによって成形のため
のキャビティを形成するため、樹脂層のみを非軸対称形
状にすることができる。In the present invention, since the cavity for molding is formed by the base material, the contact member in contact with the base material, and the mold for pressing the resin layer, only the resin layer has a non-axisymmetric shape. can do.
【００１３】[0013]
【発明の実施の形態】以下、本発明を図示する実施の形
態により具体的に説明する。なお、各実施の形態におい
て、同一の要素は同一の符号を付して対応させてある。 （実施の形態１）図１〜図３は、本発明の複合型光学素
子の成形方法の実施の形態１を示す。ガラス基材２は通
常の研磨加工によって、外形が円形々状、すなわち光学
中心を軸とする軸対称形状であり、且つその光学面２ａ
が凹状の球面形状となっている。このガラス基材２に対
し、外周面の２箇所を直線状に同方向に切断して除去す
ることによって、非軸対称形状になるように加工する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be specifically described below with reference to embodiments shown in the drawings. In each of the embodiments, the same elements are denoted by the same reference numerals and correspond to each other. (First Embodiment) FIGS. 1 to 3 show a first embodiment of a method of forming a composite optical element according to the present invention. The glass substrate 2 has a circular outer shape, that is, an axially symmetric shape with the optical center as an axis, and has an optical surface 2a formed by ordinary polishing.
Has a concave spherical shape. The glass substrate 2 is processed so as to have a non-axisymmetric shape by cutting two locations on the outer peripheral surface in a straight line in the same direction and removing them.
【００１４】非軸対称形状への加工の後、ガラス基材２
の光学面２ａに、シランカップリング剤（商品名「ＫＢ
Ｍ−５０３」（株）信越化学製）を滴下し、スピンナー
（図示省略）によって光学面２ａに均一に塗布する。こ
の場合、シランカップリング剤は適宜エタノールで希釈
して使用する。この塗布の後、８０℃の温度雰囲気内に
２０分間放置して、シランカップリング剤をガラス基材
２の光学面２ａに焼き付ける。After processing into a non-axisymmetric shape, the glass substrate 2
A silane coupling agent (trade name “KB”)
M-503 "(manufactured by Shin-Etsu Chemical Co., Ltd.), and uniformly coated on the optical surface 2a by a spinner (not shown). In this case, the silane coupling agent is appropriately diluted with ethanol before use. After this application, the silane coupling agent is baked on the optical surface 2a of the glass substrate 2 by leaving it in an atmosphere at a temperature of 80 ° C. for 20 minutes.
【００１５】シランカップリング処理が施されたガラス
基材２を室温に戻した後、図２に示すように、液体定量
吐出装置（図示省略）により、紫外線硬化型樹脂３を光
学面２ａに適量吐出する。そして、上下動可能な成形用
金型１（以下、金型１）の下部に、双方の中心軸を一致
させた状態で載置台２０に支持させる。After the glass substrate 2 having been subjected to the silane coupling treatment is returned to room temperature, an ultraviolet curable resin 3 is applied to the optical surface 2a by a liquid metering device (not shown) as shown in FIG. Discharge. Then, it is supported on the mounting table 20 below the vertically movable mold 1 (hereinafter, mold 1) with both central axes aligned.
【００１６】次に、ガラス基材２と金型１との間隔が所
望の間隔になるまで金型１を下降させる。これにより、
ガラス基材２上に吐出されている樹脂３は金型１に押圧
されるため、図３に示すようにガラス基材２上の光学面
２ａの全面に拡がって樹脂層３ａとなる。Next, the mold 1 is lowered until the interval between the glass substrate 2 and the mold 1 becomes a desired interval. This allows
Since the resin 3 discharged onto the glass substrate 2 is pressed by the mold 1, the resin 3 spreads over the entire optical surface 2a on the glass substrate 2 as shown in FIG.
【００１７】この押圧状態のままで図３に示すように、
ガラス基材２下方に位置しているエネルギー照射手段と
しての高圧水銀ランプ８から紫外線を出射する。紫外線
はガラス基材２を透過して樹脂層３を照射し、樹脂層３
を硬化させる。この硬化によって、樹脂層３がガラス基
材２と一体となった複合型光学素子となる。In this pressed state, as shown in FIG.
Ultraviolet rays are emitted from a high-pressure mercury lamp 8 as an energy irradiating unit located below the glass substrate 2. The ultraviolet light passes through the glass substrate 2 and irradiates the resin layer 3,
To cure. By this curing, a composite optical element in which the resin layer 3 is integrated with the glass substrate 2 is obtained.
【００１８】樹脂層の硬化が完了した後、ガラス基材２
と樹脂層３とが一体化した複合型光学素子を図示しない
離型手段で押さえ、この押え状態のままで金型１を上昇
させることにより複合型光学素子を金型１から離型させ
る。After the curing of the resin layer is completed, the glass substrate 2
The composite optical element in which the composite optical element is integrated with the resin layer 3 is pressed by a releasing means (not shown), and the composite optical element is released from the mold 1 by raising the mold 1 in this pressed state.
【００１９】以上のような成形では、カメラ等の光学機
器にとって不要な部分を有さない非軸対称形状の複合型
光学素子とすることができる。With the above-described molding, a non-axially symmetric composite optical element having no unnecessary parts for an optical device such as a camera can be obtained.
【００２０】（実施の形態２）図４〜図７は実施の形態
２を示す。この実施の形態では、実施の形態１で用いら
れた構成に加えて、当接部材１０を用いるものである。Second Embodiment FIGS. 4 to 7 show a second embodiment. In this embodiment, an abutting member 10 is used in addition to the configuration used in the first embodiment.
【００２１】当接部材１０は、実施の形態１と同様な加
工によって非軸対称形状に成形されたガラス基材２の両
端面２ｂに当接する当接面１１と、この当接面１１の上
端から上方に円弧状に湾曲した接触面１２とを有してい
る。当接面１１はガラス基材２の除去された部分を補う
ものであり、接触面１２は金型１の成形面１ａに接触す
るようになっている。かかる当接部材１０は、ガラス基
材２の光軸に向かって、すなわち光軸に対して直交する
方向（矢印Ｘ方向）に進退可能であり、その進出によっ
てガラス基材２を挟むことができる。The contact member 10 includes a contact surface 11 that contacts both end surfaces 2b of the glass substrate 2 formed into a non-axisymmetric shape by the same processing as in the first embodiment, and an upper end of the contact surface 11. And a contact surface 12 curved upward in an arc. The contact surface 11 supplements the removed portion of the glass substrate 2, and the contact surface 12 comes into contact with the molding surface 1 a of the mold 1. The contact member 10 can move toward and away from the optical axis of the glass substrate 2, that is, in a direction (arrow X direction) perpendicular to the optical axis, and can sandwich the glass substrate 2 by the advance. .
【００２２】この実施の形態では、実施の形態１と同様
にガラス基材２の光学面２ａに紫外線硬化型樹脂３を適
量吐出し、上下動可能な金型１の下部に、双方の中心軸
を一致させた状態で載置台２０上に配置する。その後、
ガラス基材２に向けて当接部材１０を前進させ、当接面
１１をガラス基材２に当接させることによりガラス基材
２を挟む。In this embodiment, similarly to the first embodiment, an appropriate amount of the ultraviolet curing resin 3 is discharged onto the optical surface 2a of the glass substrate 2, and both central axes are placed below the vertically movable mold 1. Are placed on the mounting table 20 in a state where they are matched. afterwards,
The contact member 10 is advanced toward the glass substrate 2, and the contact surface 11 is brought into contact with the glass substrate 2 to sandwich the glass substrate 2.
【００２３】当接部材１０がガラス基材２と当接したと
き、外形が軸対称形状で、且つガラス基材２の光学面２
ａと当接部材１０の接触面１２とが連続面となる。かか
る当接部材１０は紫外線を透過することが可能なような
ガラスもしくは透明プラスチックによって成形されてい
る。When the contact member 10 comes into contact with the glass substrate 2, the outer shape is axially symmetric and the optical surface 2 of the glass substrate 2
a and the contact surface 12 of the contact member 10 become a continuous surface. The contact member 10 is formed of glass or transparent plastic that can transmit ultraviolet rays.
【００２４】次に、ガラス基材２と金型１との間隔が所
望の間隔になるまで金型１を下降させる。これにより、
ガラス基材２上に吐出されている樹脂３は金型１に押圧
され、ガラス基材２の光学面２ａの全面に拡がり樹脂層
３ａとなる。その際には、ガラス基材２の光学面２ａと
当接部材１０の接触面１２とが軸対称の連続面になって
いるため、樹脂３は接触面１２にまで均等に拡がった樹
脂層３ａとなる。Next, the mold 1 is lowered until the interval between the glass substrate 2 and the mold 1 becomes a desired interval. This allows
The resin 3 discharged onto the glass substrate 2 is pressed by the mold 1 and spreads over the entire optical surface 2a of the glass substrate 2 to form a resin layer 3a. At this time, since the optical surface 2a of the glass substrate 2 and the contact surface 12 of the contact member 10 are continuous surfaces that are axially symmetric, the resin 3 is uniformly spread over the contact surface 12 by the resin layer 3a. Becomes
【００２５】その後、金型１による押圧を維持したまま
で、ガラス基材２下方に位置している高圧水銀ランプ８
により、紫外線を樹脂層３ａに照射して硬化させる。硬
化が完了した後、ガラス基材２と樹脂層３ａとが一体化
した複合型光学素子を図示しない離型手段によって押さ
え、金型１を上昇させる、これにより複合型光学素子３
０を金型１から離型させる。さらに、その後、当接部材
１０を後退させる。Thereafter, while the pressing by the mold 1 is maintained, the high-pressure mercury lamp 8 positioned below the glass substrate 2
Thereby, the resin layer 3a is irradiated with ultraviolet rays to be cured. After the curing is completed, the composite optical element in which the glass substrate 2 and the resin layer 3a are integrated is pressed by a releasing means (not shown), and the mold 1 is raised.
0 is released from the mold 1. Thereafter, the contact member 10 is retracted.
【００２６】この当接部材１０の後退によって、当接部
材１０の接触面１２に対応した樹脂層３ａ部分は、ガラ
ス基材２の光学面２ａの外側に延設し、且つフィルム状
の余剰部分３ｂとなっている。この余剰部分３ｂを図７
に示すように、カッティングによって除去する。Due to the retreat of the contact member 10, the portion of the resin layer 3a corresponding to the contact surface 12 of the contact member 10 extends outside the optical surface 2a of the glass substrate 2 and has an excess film-like portion. 3b. This surplus portion 3b is shown in FIG.
Remove by cutting, as shown in FIG.
【００２７】このような実施の形態では、実施の形態１
の効果に加えて、非軸対称形状に加工したガラス基材２
の除去加工面に樹脂がはみ出すことがなく、除去加工面
と同じ位置まで樹脂層を有した非軸対称形状の複合型光
学素子を成形することができる。In such an embodiment, the first embodiment
In addition to the effect of the above, the glass substrate 2 processed into a non-axisymmetric shape
The resin does not protrude on the removal processing surface of the above, and a non-axially symmetric composite optical element having a resin layer up to the same position as the removal processing surface can be molded.
【００２８】（実施の形態３）図８〜図１０は実施の形
態３を示す。この実施の形態では、実施の形態２と同様
に当接部材１０を使用する。この実施の形態の当接部材
１０では、その当接面１１が非軸対称形状に加工された
ガラス基材２の両端面（除去加工面）２ｂに当接する
が、この当接面２ｂはガラス基材２の厚さよりも高くな
っている。従って、当接面２ｂの上端に連設されている
接触面１２は、ガラス基材２の光学面２ａよりも上方に
位置する。Third Embodiment FIGS. 8 to 10 show a third embodiment. In this embodiment, a contact member 10 is used as in the second embodiment. In the abutment member 10 of this embodiment, the abutment surface 11 abuts on both end surfaces (removed surfaces) 2b of the glass substrate 2 which has been processed into a non-axisymmetric shape. It is higher than the thickness of the substrate 2. Therefore, the contact surface 12 continuously provided at the upper end of the contact surface 2b is located above the optical surface 2a of the glass substrate 2.
【００２９】また、当接部材１０の接触面１２に対して
は、金型１の成形面１ａが接触する。この接触面１２は
金型１の成形面１ａと同等の曲率の円弧状の湾曲面とな
っており、金型１の成形面１ａが密着することができるThe molding surface 1a of the mold 1 contacts the contact surface 12 of the contact member 10. The contact surface 12 is an arc-shaped curved surface having the same curvature as the molding surface 1a of the mold 1, and the molding surface 1a of the mold 1 can be in close contact.
【００３０】かかる当接部材１０がガラス基材２の両端
面２ｂに当接し、且つ、金型１が下降して当接部材１０
の接触面１２に接触した状態では、ガラス基材２、当接
部材１０及び金型１によって封鎖された空間が形成され
る。この空間は樹脂層３ａを成形するためのキャビティ
１３となり、樹脂層３ａはキャビティ１３内で成形され
る。The contact member 10 comes into contact with both end faces 2b of the glass substrate 2, and the mold 1 descends to bring the contact member 10 down.
In this state, a space closed by the glass substrate 2, the contact member 10, and the mold 1 is formed. This space becomes a cavity 13 for molding the resin layer 3a, and the resin layer 3a is molded in the cavity 13.
【００３１】この実施の形態では、非軸対称形状に加工
したガラス基材２の成形面２ａに樹脂３を吐出する。そ
して、当接部材１０がガラス基材２方向に進出して、そ
の当接面１１がガラス基材２の除去加工面２ｂに当接
し、この当接によって当接部材１０がガラス基材２を挟
む。In this embodiment, the resin 3 is discharged onto the molding surface 2a of the glass substrate 2 processed into a non-axially symmetric shape. Then, the contact member 10 advances in the direction of the glass substrate 2, and the contact surface 11 contacts the removal processing surface 2 b of the glass substrate 2. Pinch.
【００３２】この状態で金型１が下降し、金型１、ガラ
ス基材２及び当接部材１０によってキャビティ１３を形
成する。金型１が下降することによって樹脂３が押圧さ
れるため、樹脂３が光学面２ａに拡がる。この樹脂３は
除去加工面２ｂに達すると、当接部材１０の当接面１１
に堰き止められるため、それ以上は拡がらない。その
分、除去加工面２ｂでない側に拡がる。In this state, the mold 1 descends, and a cavity 13 is formed by the mold 1, the glass substrate 2, and the contact member 10. Since the resin 3 is pressed by the mold 1 descending, the resin 3 spreads on the optical surface 2a. When the resin 3 reaches the removal processing surface 2b, the contact surface 11 of the contact member 10
It will not spread any more because it will be blocked by the sea. To that extent, it spreads to the side other than the removal processing surface 2b.
【００３３】そして、このようにして拡がった状態で、
ガラス基材２下方に位置している高圧水銀ランプ８によ
り紫外線を樹脂３に照射し、硬化させる。硬化が完了し
た後、ガラス基材２と樹脂３とが一体化した複合型光学
素子を図示しない離型手段により金型１から離型させ
る。Then, in the state spread in this way,
The resin 3 is irradiated with ultraviolet rays by a high-pressure mercury lamp 8 located below the glass substrate 2 to be cured. After the curing is completed, the composite optical element in which the glass substrate 2 and the resin 3 are integrated is released from the mold 1 by releasing means (not shown).
【００３４】このような実施の形態によれば、実施の形
態２と同様にガラス基材２の除去加工面２ｂと同じ位置
まで樹脂層３ａを形成することができる。また、この樹
脂層３ａは、ガラス基材２の外側に出ないため、、余分
な樹脂層を除去する２次加工が不要となる効果がある。According to such an embodiment, the resin layer 3a can be formed up to the same position as the removal processing surface 2b of the glass substrate 2 as in the second embodiment. Further, since the resin layer 3a does not protrude outside the glass substrate 2, there is an effect that the secondary processing for removing the extra resin layer becomes unnecessary.
【００３５】なお、上記した具体的実施の形態から次の
ような構成の技術的思想が導き出される。The technical idea having the following configuration is derived from the specific embodiment described above.
【００３６】（１） 球面ガラス基材上にエネルギー硬
化型樹脂よりなる樹脂層が形成される複合型光学素子に
おいて、円形球面のガラス基材を、光軸を中心とした非
軸対称形状に加工した後、エネルギー硬化型樹脂よりな
る非球面樹脂層を形成することを特徴とする複合型光学
素子の成形方法。(1) In a composite optical element in which a resin layer made of an energy-curable resin is formed on a spherical glass substrate, the circular spherical glass substrate is processed into a non-axially symmetrical shape around the optical axis. Forming an aspherical resin layer made of an energy-curable resin after forming the composite optical element.
【００３７】（２） 非軸対称形状に加工されたガラス
基材を、前記非軸対称形状と軸対称形状との差分を補完
する形状の部材によって挟むことによって、軸対称形状
で且つ同一球面となるようにし、この状態に対して非球
面樹脂層を成形することを特徴とする上記（１）記載の
複合型光学素子の成形方法。(2) By sandwiching a glass substrate processed into a non-axisymmetric shape with a member having a shape that complements the difference between the non-axisymmetric shape and the axially symmetric shape, an axisymmetric shape and the same spherical surface are obtained. The method for forming a composite optical element according to the above (1), wherein the aspherical resin layer is formed in this state.
【００３８】（３） 非軸対称形状を有するガラス基材
と、エネルギー硬化型樹脂を押圧する金型と、前記ガラ
ス基材の加工面を挟む部材とによって、前記加工面への
エネルギー硬化型樹脂の流れ出しを防止することを特徴
とする上記（１）記載の複合型光学素子の成形方法。(3) The energy-curable resin is applied to the processed surface by a glass substrate having a non-axisymmetric shape, a mold for pressing the energy-curable resin, and a member sandwiching the processed surface of the glass substrate. (1) The method for forming a composite optical element according to the above (1), wherein the flow of the composite optical element is prevented.
【００３９】[0039]
【発明の効果】請求項１の複合型光学素子の成形方法に
よれば、複合型光学素子の光学性能上不要な部分を取り
除くことにより、この不要な部分をスペースとして使用
することができるため、カメラ等の光学機器の鏡枠にお
いては、光学機器の機能上、必要な他の部材をスペース
に収めることができ、光学機器をコンパクトにすること
ができる効果がある。According to the method of molding a composite optical element according to the first aspect of the present invention, by removing unnecessary parts in the optical performance of the composite optical element, the unnecessary parts can be used as spaces. In a mirror frame of an optical device such as a camera, other members necessary for the function of the optical device can be accommodated in a space, and there is an effect that the optical device can be made compact.
【００４０】請求項２の複合型光学素子の成形方法によ
れば、請求項１の効果に加え、基材と樹脂層の外形々状
を光学的有効径と同様にすることができるため、光学系
をより小径とすることができ、基材の成形面全面を光学
面として有効に使用することができる。According to the method of molding a composite optical element of the second aspect, in addition to the effect of the first aspect, the outer shapes of the base material and the resin layer can be made the same as the optically effective diameter. The system can be made smaller in diameter, and the entire molding surface of the substrate can be effectively used as an optical surface.
【００４１】請求項３の複合型光学素子の成形方法によ
れば、請求項１の効果に加え、基材が軸対称形状であっ
ても、樹脂層のみを非軸対称形状にすることができるた
め、軸方向へのスペースを若干拡げられるとともに、使
用する樹脂を最小量とすることができる。According to the method of molding a composite optical element of the third aspect, in addition to the effect of the first aspect, even if the base material has an axially symmetric shape, only the resin layer can be made to have a non-axially symmetric shape. Therefore, the space in the axial direction can be slightly increased, and the amount of resin used can be minimized.
【図１】本発明の実施の形態１における平面図である。FIG. 1 is a plan view according to Embodiment 1 of the present invention.
【図２】実施の形態１の側面からの断面図である。FIG. 2 is a cross-sectional view of the first embodiment as viewed from a side.
【図３】実施の形態１の成形時の断面図である。FIG. 3 is a cross-sectional view of Embodiment 1 during molding.
【図４】本発明の実施の形態２における平面図である。FIG. 4 is a plan view according to a second embodiment of the present invention.
【図５】実施の形態２の側面からの断面図である。FIG. 5 is a cross-sectional view of the second embodiment as viewed from the side.
【図６】実施の形態２の成形時の断面図である。FIG. 6 is a cross-sectional view of Embodiment 2 during molding.
【図７】実施の形態２での余剰部分を除去する工程を示
し、（ａ）は平面図、（ｂ）は断面図である。FIGS. 7A and 7B show a step of removing a surplus portion in the second embodiment, wherein FIG. 7A is a plan view and FIG.
【図８】本発明の実施の形態３における平面図である。FIG. 8 is a plan view according to a third embodiment of the present invention.
【図９】実施の形態３の側面からの断面図である。FIG. 9 is a cross-sectional view of the third embodiment as viewed from the side.
【図１０】実施の形態３の成形時の断面図である。FIG. 10 is a cross-sectional view of Embodiment 3 during molding.
【図１１】従来の成形方法に使用する基材の斜視図であ
る。FIG. 11 is a perspective view of a base material used in a conventional molding method.
【符号の説明】 １ 金型 ２ ガラス基材 ２ａ 光学面 ３ 樹脂 ３ａ 樹脂層 １０ 当接部材[Description of Signs] 1 Mold 2 Glass substrate 2a Optical surface 3 Resin 3a Resin layer 10 Contact member
Claims (3)
硬化型の樹脂層にエネルギーを照射して、樹脂層を硬化
させる複合型光学素子の成形方法において、 外径が円形々状で且つ光学面が球面形状である軸対称形
状の基材を、その光軸を中心とした非軸対称形状に加工
する工程と、 非軸対称形状に加工した基材の光学面上にエネルギー硬
化型の樹脂を供給する工程と、 基材の光学面上に供給された樹脂を所望の形状の樹脂層
に成形する工程と、 成形した樹脂層にエネルギーを照射して樹脂層を硬化さ
せ、非球面形状とする工程と、 を有することを特徴とする複合型光学素子の成形方法。1. A method for molding a composite optical element, comprising: irradiating an energy-curable resin layer formed on an optical surface of a base material with energy to cure the resin layer; A process in which an axisymmetric substrate having a spherical optical surface is processed into a non-axisymmetric shape centered on the optical axis, and an energy-curable type is formed on the optical surface of the non-axisymmetric substrate. A step of supplying the resin; a step of molding the resin supplied on the optical surface of the base material into a resin layer having a desired shape; and irradiating the molded resin layer with energy to cure the resin layer, thereby forming an aspherical shape. And a method of molding a composite optical element.
た部分に当接部材を当接し、基材と当接部材とを組み合
わせた形状を略軸対称形状とする工程と、 基材の光学面上の樹脂層を硬化させた後、当接部材を基
材から分離する工程と、 基材の光学面上以外に存在する樹脂層を除去する工程
と、 を有することを特徴とする請求項１記載の複合型光学素
子の成形方法。2. A process in which a contact member is brought into contact with a portion of the base material processed into a non-axisymmetric shape, and a shape obtained by combining the base material and the contact member is made substantially axially symmetric. After curing the resin layer on the surface, a step of separating the contact member from the base material, and a step of removing the resin layer existing other than on the optical surface of the base material, comprising: A method for molding a composite optical element according to claim 1.
た部分に当接部材を当接させ、基材の光学面上の樹脂を
金型によって押圧して樹脂層とし、この金型、前記当接
部材及び基材によって樹脂を成形するキャビティを形成
することを特徴とする請求項１記載の複合型光学素子の
成形方法。3. An abutment member is brought into contact with a portion of the base material processed into a non-axially symmetric shape, and a resin on an optical surface of the base material is pressed by a mold to form a resin layer. 2. The method of molding a composite optical element according to claim 1, wherein a cavity for molding the resin is formed by the contact member and the base material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27097397A JP3979708B2 (en) | 1997-10-03 | 1997-10-03 | Method for molding composite optical element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27097397A JP3979708B2 (en) | 1997-10-03 | 1997-10-03 | Method for molding composite optical element |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH11105144A true JPH11105144A (en) | 1999-04-20 |
| JP3979708B2 JP3979708B2 (en) | 2007-09-19 |
Family
ID=17493619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27097397A Expired - Fee Related JP3979708B2 (en) | 1997-10-03 | 1997-10-03 | Method for molding composite optical element |
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| Country | Link |
|---|---|
| JP (1) | JP3979708B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113498382A (en) * | 2019-02-22 | 2021-10-12 | 依视路国际公司 | Method and system for manufacturing optical volume elements from curable materials using additive manufacturing techniques |
-
1997
- 1997-10-03 JP JP27097397A patent/JP3979708B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113498382A (en) * | 2019-02-22 | 2021-10-12 | 依视路国际公司 | Method and system for manufacturing optical volume elements from curable materials using additive manufacturing techniques |
| CN113498382B (en) * | 2019-02-22 | 2023-05-05 | 依视路国际公司 | Method and system for manufacturing optical volume elements from curable materials using additive manufacturing techniques |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3979708B2 (en) | 2007-09-19 |
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