JP2680175B2 - Optical element manufacturing method - Google Patents
Optical element manufacturing methodInfo
- Publication number
- JP2680175B2 JP2680175B2 JP2257252A JP25725290A JP2680175B2 JP 2680175 B2 JP2680175 B2 JP 2680175B2 JP 2257252 A JP2257252 A JP 2257252A JP 25725290 A JP25725290 A JP 25725290A JP 2680175 B2 JP2680175 B2 JP 2680175B2
- Authority
- JP
- Japan
- Prior art keywords
- mold
- resin layer
- optical element
- base material
- glass base
- 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.)
- Expired - Fee Related
Links
Landscapes
- Surface Treatment Of Optical Elements (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Description
【発明の詳細な説明】 ［産業上の利用分野］ 本発明は、樹脂、ゴム等の流動性のある原料を型内に
流し込んで成形品母材の表面に所望の形状を形成するレ
プリカ成形法に使用する型を用いたガラス母材上に紫外
線硬化樹脂層を有する光学素子の製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a replica molding method in which a flowable raw material such as a resin or rubber is poured into a mold to form a desired shape on the surface of a molded product base material. The present invention relates to a method for producing an optical element having an ultraviolet-curable resin layer on a glass base material using a mold used for the method.
［従来の技術］ 従来、上記のような成形法に利用される型の材料とし
て、金属、ガラス、プラスチック、ゴム等が用いられて
いたが、型内で樹脂モノマーを重合、硬化させてから離
型する際、樹脂が型表面に密着あるいは接着してしまい
成形品を離型することが容易でないため、熱ショック
法、超音波脱型法や機械による引き離し、また型への離
型剤の塗布等の方法が用いられてきた。[Prior Art] Conventionally, metals, glasses, plastics, rubbers, and the like have been used as materials for a mold used in the above-described molding method. However, the resin monomer is polymerized and cured in the mold, and then separated. When molding, the resin adheres or adheres to the surface of the mold and it is not easy to release the molded product, so it is released by heat shock method, ultrasonic demolding method or machine, and application of release agent to the mold And other methods have been used.
また、従来、ガラス母材上に紫外線硬化樹脂よりなる
樹脂層を有する光学素子の製造には、有機官能基あるい
は反応基を持つシランカップリング剤をガラス母材に塗
布し処理して、ガラス母材表面に結合または吸着してい
る水水子の存在により、ガラス母材表面にシラノール基
を介して有機物被覆膜を形成することにより、ガラス母
材と樹脂層との接着性を向上させる方法が用いられてい
た。Further, conventionally, in the manufacture of an optical element having a resin layer made of an ultraviolet curable resin on a glass base material, a silane coupling agent having an organic functional group or a reactive group is applied to the glass base material and treated to form a glass base material. A method for improving the adhesiveness between a glass base material and a resin layer by forming an organic coating film on the glass base material surface through silanol groups due to the presence of water molecules bound or adsorbed on the material surface Was used.
また、樹脂層と接する成形型は、石英ガラス、鋼鉄等
の酸化物あるいは鉄系合金を材料として作られている。
また、これらの成形型の表面は空気中では酸化物で被わ
れており、その上に水分子が結合・吸着していると考え
られている。そして、この水分子が樹脂層中にあるカル
ボキシル基、アミノ基、シアノ基などの極性基と水素結
合を形成するため、成形型と樹脂層の接着力は大きく、
従って成形型への樹脂残りによる不良品の発生を引き起
こしていた。そこで、成形型と樹脂層の接着力を弱め離
型性を向上させるため、エステル系の界面活性剤やフッ
素樹脂系の離型剤を塗布していた。The mold in contact with the resin layer is made of an oxide such as quartz glass or steel or an iron-based alloy.
Also, the surface of these molds is covered with an oxide in the air, and it is considered that water molecules are bonded and adsorbed thereon. And since this water molecule forms a hydrogen bond with a polar group such as a carboxyl group, an amino group, and a cyano group in the resin layer, the adhesive force between the mold and the resin layer is large,
Therefore, a defective product is generated due to the resin remaining on the molding die. Therefore, in order to weaken the adhesive force between the mold and the resin layer and improve the releasability, an ester-based surfactant or a fluororesin-based release agent has been applied.
［発明が解決しようとしている課題］ しかしながら、熱ショック法では、冷却加熱を繰り返
すため成形品の変形、変質、割れ等の問題があった。ま
た、超音波脱型法では、成形品の割れがしばしば生じ良
品率が低いという問題があった。機械的な引き離しで
は、成形品の一部に大きな力がかかるため成形品に変形
が生じたり、また成形品を型から取り出し易いように成
形品にテーパー形状をつけなければならず、成形品形状
に制約を受けるという問題があった。[Problems to be Solved by the Invention] However, the heat shock method has problems such as deformation, deterioration, and cracking of a molded product because cooling and heating are repeated. Further, in the ultrasonic demolding method, there is a problem that a molded article is often cracked and a yield rate is low. In mechanical separation, a large force is applied to a part of the molded product, and the molded product may be deformed.In addition, the molded product must be tapered so that it can be easily removed from the mold. There is a problem that is subject to restrictions.
また、ガラス母材のカップリング処理では、スピンコ
ート、ディッピング等の塗布方法におけるカップリング
剤の濃度、ガラス母材の回転または引き上げ速度等の条
件出しが困難であり、また専用の設備も必要であった。In addition, in the coupling treatment of the glass base material, it is difficult to determine conditions such as the concentration of the coupling agent in the coating method such as spin coating and dipping, and the rotation or pulling speed of the glass base material, and special equipment is also required. there were.
また、樹脂層と接する成形型にフッ素樹脂、シリコー
ン樹脂、脂肪酸エステル、リン酸エステル等の離型剤を
ディッピング等により塗布して離型性を向上させる方法
は、成形品表面が汚れたり、成形回数が増えるに従い離
型剤が型表面より失しなわれ離型効果が減少するので度
々離型剤を塗布しなければならない等の問題があった。In addition, a method of applying a release agent such as a fluororesin, a silicone resin, a fatty acid ester, and a phosphate ester to a molding die in contact with the resin layer by dipping or the like to improve the releasability is that the surface of the molded product becomes dirty, As the number of times increases, the release agent is lost from the mold surface and the release effect is reduced, so that there has been a problem that the release agent must be applied frequently.
従って、本発明の第１の目的は、離型剤を使用するこ
となく離型性を向上させた光学素子成形用型を用いた光
学素子の製造方法を提供することにある。Accordingly, a first object of the present invention is to provide a method for manufacturing an optical element using a mold for forming an optical element, which has improved releasability without using a release agent.
本発明の第２の目的は、ガラス母材にカップリング処
理をすることなくガラス母材と樹脂層との接着性が向上
した光学素子の製造方法、を提供することにある。A second object of the present invention is to provide a method for manufacturing an optical element in which the adhesiveness between a glass base material and a resin layer is improved without subjecting the glass base material to a coupling treatment.
［課題を解決するための手段］ すなわち、光学素子成形用型により紫外線硬化樹脂組
成物を用いてガラス母材上に樹脂層を形成する光学素子
の製造方法において、前記型の樹脂層と接する部分が炭
化物結晶粒および窒化物結晶粒から選ばれる１種または
２種の焼結体からなり、前記樹脂組成物が該組成物100
重量部に対し１〜７重量部のシランカップリング剤を含
有し、かつ前記ガラス母材が27重量％以上のSiO2を含有
することを特徴とする光学素子の製造方法 本発明で用いる光学素子成形用型においては、炭化物
結晶粒、窒化物結晶粒の焼結体からなる成形型により離
型性を向上させている。[Means for Solving the Problem] That is, in a method for producing an optical element in which a resin layer is formed on a glass base material by using an ultraviolet-curable resin composition with an optical element molding die, a portion in contact with the resin layer of the die Is a sintered body of one or two kinds selected from carbide crystal grains and nitride crystal grains, and the resin composition is the composition 100
Optical element used in the present invention, characterized by containing 1 to 7 parts by weight of a silane coupling agent, and the glass base material contains 27% by weight or more of SiO 2 with respect to parts by weight. In the molding die, the mold releasability is improved by a molding die made of a sintered body of carbide crystal grains and nitride crystal grains.
本発明の光学素子の製造方法においては、ガラス母材
として27重量％以上のSiO2を含有するガラスを用い、か
つ樹脂層の形成に用いる紫外線硬化樹脂組成物に１〜７
重量部のシランカップリング剤を含有させることによ
り、ガラス母材にシランカップリング処理を施すことな
くガラス母材と樹脂層との密着性を向上させている。ま
た、シランカップリング剤に対する反応性が低いという
特性、すなわち表面に結合・吸着する水分子が少ないた
めシランカップリング剤を含有する樹脂層に対する接着
力が小さいという特性を有する材料である炭化物結晶
粒、窒化物結晶粒の焼結体からなる成形型を用いること
により、成形型に離型処理を施すことなく樹脂層との離
型性を向上させている。In the method for producing an optical element of the present invention, a glass containing 27% by weight or more of SiO 2 is used as a glass base material, and an ultraviolet-curable resin composition used for forming a resin layer is 1 to 7%.
By containing the silane coupling agent in parts by weight, the adhesion between the glass base material and the resin layer is improved without performing the silane coupling treatment on the glass base material. In addition, a carbide crystal grain that is a material having a property of low reactivity with a silane coupling agent, that is, a property of having a small adhesive force to a resin layer containing a silane coupling agent due to a small number of water molecules bound / adsorbed on the surface. By using a mold made of a sintered body of nitride crystal grains, the mold releasability from the resin layer is improved without subjecting the mold to mold release treatment.
本発明において炭化物の成形型としては、WC,TiC,Ta
C,VC,ZrC,NbC,B4C,SiC,Mo2C等の粉体をホットプレス法
により成形・焼結したもの、またはこれらの炭化物粉体
に焼結助剤としてCo,Ni,Cr,Nb等の金属を５〜20重量％
加えてホットプレス法により成形・焼結したものなどが
用いられる。離型性の点で好ましいのはWC,TiC,B4C,SiC
である。窒化物の成形型としては、BN,Si3N4等の粉体を
ホットプレスで成形・焼結したものなどが用いられる。
また、成形型として上記炭化物や窒化物と同様にSi3N4
−SiCの焼結体も用いられる。In the present invention, as the mold for the carbide, WC, TiC, Ta
Powder of C, VC, ZrC, NbC, B 4 C, SiC, Mo 2 C etc. molded and sintered by hot pressing method, or Co, Ni, Cr as a sintering aid for these carbide powders 5 to 20% by weight of metals such as Nb
In addition, those molded and sintered by the hot pressing method are used. WC, TiC, B 4 C, and SiC are preferable from the viewpoint of mold releasability.
It is. As the molding die of the nitride, a material obtained by molding and sintering powder of BN, Si 3 N 4, etc. by hot pressing is used.
In addition, as a mold, Si 3 N 4
-SiC sintered body is also used.
本発明において紫外線硬化樹脂としては、エポキシ、
ウレタン、ポリエステル、ビニル、シリコン、ポリエン
等のアクリレートなど、及びエポキシ、ポリイミド、不
飽和ポリエステル等のモノマー又はオリゴマーと重合開
始剤の組み合わせが用いられる。In the present invention, as the ultraviolet curable resin, epoxy,
A combination of an acrylate such as urethane, polyester, vinyl, silicon, and polyene, and a monomer or oligomer such as epoxy, polyimide, and unsaturated polyester and a polymerization initiator is used.
本発明においてシランカップリング剤としては、エポ
キシ系シラン、メタクリロキシ系シラン、イソシアネー
ト系シラン、アミノ系シラン、メルカプト系シラン等が
用いられる。これらシランカップリング剤は前記紫外線
硬化樹脂を含む組成物100重量部に対し１〜７重量部含
有させる。好ましくは２〜５重量部である。シランカッ
プリング剤が１重量部未満であるとガラス母材と樹脂層
の密着性が低下し、７重量部を越えると樹脂層と成形型
との離型性が低下する。In the present invention, as the silane coupling agent, epoxy silane, methacryloxy silane, isocyanate silane, amino silane, mercapto silane, etc. are used. These silane coupling agents are contained in an amount of 1 to 7 parts by weight based on 100 parts by weight of the composition containing the ultraviolet curable resin. Preferably it is 2 to 5 parts by weight. When the amount of the silane coupling agent is less than 1 part by weight, the adhesion between the glass base material and the resin layer deteriorates, and when it exceeds 7 parts by weight, the releasability between the resin layer and the molding die decreases.
本発明においてガラス母材としては、樹脂層との密着
性を良好なものにするためSiO2を27重量％以上含有する
ガラスを用いる。好ましくはSiO2含有量が40重量％以上
である。ガラス母材として具体的にはBK1,BK7等の光学
ガラスが用いられる。In the present invention, glass containing 27% by weight or more of SiO 2 is used as the glass base material in order to improve the adhesion to the resin layer. Preferably, the content of SiO 2 is at least 40% by weight. Specifically, optical glass such as BK1 and BK7 is used as the glass base material.
また、本発明における光学素子は、非球面レンズ、フ
レネルレンズ、カメラのピント板、ビームスプリッター
素子に見られるような山形状のくり返し形状、回折格
子、リニアエンコーダーのような凹凸形状のくり返し等
を成形する用途に応用が可能である。Further, the optical element in the present invention is formed with an aspherical lens, a Fresnel lens, a focusing plate of a camera, a mountain-shaped repeating shape as seen in a beam splitter element, a diffraction grating, and a concave-convex repeating shape such as a linear encoder. It can be applied to various uses.
［実施例］ 次に、本発明を実施例によって更に具体的に説明す
る。[Examples] Next, the present invention will be described more specifically with reference to examples.
実施例１ 第１図は、ガラス表面に非球面樹脂層を形成するレプ
リカ法を示す模式断面図である。１は型ホルダー、２は
炭化物焼結体からなる成形型、３はガスケットであり、
成形型１とガラスレンズ５の空隙部に樹脂を注入し、レ
ンズ側から光を照射して樹脂を硬化させレンズ５上に樹
脂層４を形成する。その製造工程を第３図に示した。本
発明の光学素子成形用型を用いた製造工程では型の離型
処理は不要である。Example 1 FIG. 1 is a schematic sectional view showing a replica method for forming an aspherical resin layer on the glass surface. 1 is a mold holder, 2 is a mold made of a carbide sintered body, 3 is a gasket,
A resin is injected into the space between the mold 1 and the glass lens 5, and light is irradiated from the lens side to cure the resin to form the resin layer 4 on the lens 5. The manufacturing process is shown in FIG. In the manufacturing process using the optical element molding die of the present invention, mold release treatment is not required.
焼結WC（住友電工製H1）を型材として、直径20mm、参
照曲率半径45mm、最大偏差70μｍの非球面凹状に鏡面加
工して成形型を作成した。次いで、型上にジシクロペン
チルオキシエチルアクリレート40重量部、トリス（２−
アクリロキシ）イソシアネート20重量部、ポリウレタン
アクリレート40重量部、紫外線硬化剤としてヒドロキシ
ヘキシルフェニルケトン２重量部からなる紫外線硬化樹
脂組成物をディスペンサーにより滴下し、その上にガラ
ス母材として光学ガラスレンズSK12（SiO243％含有）、
直径22mm、曲率半径15.8mm、光線有効径20mmの凸レンズ
を載せて固定した。次いで、ガラス母材側より20Wのケ
ミカルランプ（0.65mW/cm2）で10分間照射し、更に40W/
cm2の高圧水銀灯で７分間照射して、ガラス母材の片側
に非球面樹脂層を有するレンズを成形した。Using sintered WC (H1 manufactured by Sumitomo Electric Industries) as a mold material, a molding die was created by mirror-polishing into an aspherical concave shape with a diameter of 20 mm, a reference curvature radius of 45 mm, and a maximum deviation of 70 μm. Then, 40 parts by weight of dicyclopentyloxyethyl acrylate and tris (2-
A UV-curable resin composition consisting of 20 parts by weight of acryloxy) isocyanate, 40 parts by weight of polyurethane acrylate and 2 parts by weight of hydroxyhexyl phenyl ketone as an ultraviolet curing agent is dropped by a dispenser, and an optical glass lens SK12 (SiO2 as a glass base material is formed thereon. 2 43% content),
A convex lens with a diameter of 22 mm, a radius of curvature of 15.8 mm, and an effective ray diameter of 20 mm was mounted and fixed. Then, irradiate from the glass base material side with a 20 W chemical lamp (0.65 mW / cm 2 ) for 10 minutes, and further 40 W /
Irradiation with a high-pressure mercury lamp of cm 2 for 7 minutes was performed to form a lens having an aspherical resin layer on one side of the glass base material.
成形後のレンズの離型性は非常に良く、型への樹脂残
りはなく、型表面は成形前の状態を保っていた。また、
レンズ表面からの樹脂剥離は起きなかった。引き続き１
か月間成形を繰り返しても、レンズ表面は充分な光学精
度を保っており、型表面に樹脂残りは認められなかっ
た。更に、レンズのガラス母材と樹脂層との密着性をテ
ープ剥離試験（1mm間隔、10×10の基盤目状にカミソリ
でカット）で評価したところ、レンズからの樹脂剥離は
認められなかった。The mold releasability of the lens after molding was very good, there was no resin remaining in the mold, and the mold surface maintained the state before molding. Also,
No resin peeling from the lens surface occurred. Continue 1
Even after repeated molding for a month, the lens surface maintained sufficient optical accuracy, and no resin residue was found on the mold surface. Furthermore, when the adhesion between the glass base material of the lens and the resin layer was evaluated by a tape peeling test (cutting with a razor at a 1 mm interval and a 10 × 10 substrate pattern), resin peeling from the lens was not observed.
また、ガラス母材としてシランカップリング処理を施
したものを用いた他は、上記と同様にして樹脂層を形成
し、JIS K6849により樹脂層とWC成形型との接着破壊力
を測定したところ、3.1kg/cm2であった。Further, except that the one subjected to the silane coupling treatment was used as the glass base material, the resin layer was formed in the same manner as above, and the adhesion breaking force between the resin layer and the WC mold was measured by JIS K6849, It was 3.1 kg / cm 2 .
比較例１ 型材をSUS AISI420（商品名スタバック、大同製鋼
製）とした他は、実施例１と同じ条件で成形を行ったと
ころ、３回目に型表面への樹脂残りが発生し、また10回
成形を行った後に型表面を顕微鏡で観察すると、無数の
キズが型表面に存在した。更に、成形を続けると、型表
面のキズへの樹脂残りのため型表面の再研磨が必要とな
った。Comparative Example 1 When molding was performed under the same conditions as in Example 1 except that the mold material was SUS AISI420 (trade name: Stabac, made by Daido Steel Co., Ltd.), resin residue was generated on the mold surface for the third time, and 10 When the mold surface was observed with a microscope after performing the round molding, numerous scratches were present on the mold surface. Further, when the molding was continued, re-polishing of the mold surface was necessary due to the resin remaining on the scratches on the mold surface.
また、ガラス母材としてシランカップリング処理を施
したものを用いた他は、上記と同様にして樹脂層を形成
し、JIS K6849により樹脂層とSUS型との接着破壊力を測
定したところ、19.2kg/cm2であった。A resin layer was formed in the same manner as above, except that a glass base material subjected to silane coupling treatment was used, and the adhesive strength between the resin layer and the SUS mold was measured in accordance with JIS K6849. kg / cm 2 .
比較例２ 型材をSUS AISI420（商品名スタバック、大同製鋼
製）とし、更に型材上に離型剤としてフッ素樹脂をディ
ッピングにより塗布した他は、実施例１と同じ条件で成
形を行ったところ、12回目に型への樹脂残りが発生し、
成形品表面の光学精度が低下した。また、成形を行う毎
に離型剤の塗布を行うと、離型剤の型表面の濃度分布に
起因して、成形品の光学精度が低下した。Comparative Example 2 Molding was carried out under the same conditions as in Example 1 except that the mold material was SUS AISI420 (trade name: Stabac, manufactured by Daido Steel Co., Ltd.), and a fluororesin as a mold release agent was applied on the mold material by dipping. At the 12th time, resin remains on the mold,
The optical accuracy of the surface of the molded product deteriorated. In addition, when the release agent was applied each time molding was performed, the optical accuracy of the molded product was reduced due to the concentration distribution of the release agent on the mold surface.
また、JIS K6849により樹脂層とフッ素樹脂系離型剤
が塗布されたSUS型との接着破壊力を測定したところ、
１回目は4.8kg/cm2とかなり低い値を示したが、離型剤
を再塗布せずに成形を続けると10回目には17.8kg/cm2と
離型剤の効果がなくなった。Also, when measuring the adhesive breaking force between the resin layer and the SUS mold coated with the fluororesin release agent according to JIS K6849,
The first time showed a very low value of 4.8 kg / cm 2 , but if the molding was continued without re-applying the release agent, the effect of the release agent was lost to 17.8 kg / cm 2 at the tenth time.
実施例２ 光学ガラスレンズをBK7（SiO269％含有）とし、さら
に紫外線硬化樹脂組成物にシランカップリング剤として
γ−メタクリロキシプロピルトリメトキシシランを５重
量部加えた他は、実施例１と同じ条件で成形を行なっ
た。その製造工程を第４図に示し、比較のため従来の製
造工程を第２図に示した。本発明の製造工程では型の離
型処理、ガラス母材のシランカップリング剤処理は不要
である。Example 2 Example 1 was repeated except that the optical glass lens was BK7 (containing 69% of SiO 2 ), and 5 parts by weight of γ-methacryloxypropyltrimethoxysilane was added as a silane coupling agent to the ultraviolet curable resin composition. Molding was performed under the same conditions. FIG. 4 shows the manufacturing process, and FIG. 2 shows a conventional manufacturing process for comparison. In the manufacturing process of the present invention, mold release treatment and glass base material silane coupling agent treatment are unnecessary.
成形後のレンズの離型性は非常によく、型表面への樹
脂残り、レンズ表面からの樹脂剥離は起きなかった。引
き続き１か月間成形を繰り返しても、レンズ表面は充分
な光学精度を保っており、型表面に樹脂残りは認められ
なかった。更に、実施例１と同様にテープ剥離試験によ
りレンズのガラス母材と樹脂層の密着性を評価したとこ
ろ、レンズ表面からの樹脂剥離は認められなかった。The mold releasability of the lens after molding was very good, and no resin remained on the mold surface and no resin peeling from the lens surface occurred. Even after repeated molding for one month, the lens surface maintained sufficient optical accuracy and no resin residue was found on the mold surface. Furthermore, when the adhesion between the glass base material of the lens and the resin layer was evaluated by the tape peeling test as in Example 1, no resin peeling from the lens surface was observed.
また、JIS K6849により樹脂層とWC型との接着破壊力
を測定したところ、3.1kgf/cm2であった。Further, the adhesion breaking force between the resin layer and the WC type was measured by JIS K6849, and it was 3.1 kgf / cm 2 .
実施例３ 焼結BN（信越科学製）を直径20mm、参照曲率半径45m
m、最大偏差70μｍの非球面凹状に鏡面加工した型母材
上に、光硬化性ウレタンアクリレート（日本化薬製）10
0重量部に対してシランカップリング剤としてγ−メタ
クリロキシプロピルトリメトキシシランカップリング剤
を２重量部加えた紫外線硬化樹脂組成物をディスペンサ
ーで滴下し、その上に光学ガラスレンズSF6（SiO227％
含有）、直径22mm、曲率半径15.8mm、光線有効径20mmの
凸レンズを載せて固定した。次いで、ガラスレンズ側よ
り20Wのケミカルランプ（0.65mW/cm2）で10分間照射
し、更に40W/cm2の高圧水銀灯で７分間照射して成形を
行い、ガラス母材の片側に非球面樹脂層を成形した。Example 3 Sintered BN (manufactured by Shin-Etsu Kagaku) has a diameter of 20 mm and a reference curvature radius of 45 m.
m, a photocurable urethane acrylate (manufactured by Nippon Kayaku) on a mold base material mirror-processed into an aspherical concave shape with a maximum deviation of 70 μm
An ultraviolet curable resin composition obtained by adding 2 parts by weight of γ-methacryloxypropyltrimethoxysilane coupling agent as a silane coupling agent to 0 part by weight was dropped using a dispenser, and the optical glass lens SF6 (SiO 2 27 %
Containing), a diameter of 22 mm, a radius of curvature of 15.8 mm, and an effective diameter of 20 mm of a convex lens was mounted and fixed. Then, the glass lens side is irradiated with a 20 W chemical lamp (0.65 mW / cm 2 ) for 10 minutes, and further with a 40 W / cm 2 high pressure mercury lamp for 7 minutes to perform molding, and one side of the glass base material is aspherical resin. The layers were molded.
成形後のレンズの離型性は良好で、離型後の型表面に
樹脂残り、キズ等の問題はなく、成形品の非球面もレン
ズとして充分な光学精度を持っていた。引き続き１か月
間成形を繰り返しても、レンズ表面は充分な光学精度を
保っており、型表面に樹脂残りは認められなかった。The mold release property of the lens after molding was good, there was no problem such as resin remaining on the mold surface after mold release and scratches, and the aspherical surface of the molded product also had sufficient optical accuracy as a lens. Even after repeated molding for one month, the lens surface maintained sufficient optical accuracy and no resin residue was found on the mold surface.
［発明の効果］ 以上、詳細に説明したようにレプリカ法に用いる型
に、樹脂層に接する部分が炭化物結晶粒子、窒化物結晶
粒子の１種または２種の焼結体からなる型を用いること
により、 成形品を変形させずに、容易に離型することが可能と
なり、 離型が容易であるため型の耐久性が向上し、 離型剤を使用することなく離型するため、型及び成形
品の洗浄工程が省略できる。[Effects of the Invention] As described above in detail, as the mold used for the replica method, a mold in which the portion in contact with the resin layer is made of one or two kinds of sintered carbide crystal grains and nitride crystal grains is used. This makes it possible to easily release the molded product without deforming it, and since the mold release is easy, the durability of the mold is improved, and the mold release is performed without using a mold release agent. The step of cleaning the molded product can be omitted.
また、ガラス母材上に紫外線硬化樹脂層を有する光学
素子の製造方法において、樹脂層に１〜７重量部のシラ
ンカップリング剤を配合し、ガラス母材として27％以上
のSiO2を含有するガラスを用い、樹脂層に接する型材
が、樹脂層に対して離型性を有する炭化物、窒化物の１
種または２種からなる焼結体である成形型を用いること
により、 ガラス母材にカップリング処理をすることなく、ガラ
ス母材と樹脂層の密着性を向上させることができる。Further, in the method for producing an optical element having an ultraviolet curable resin layer on a glass base material, the resin layer contains 1 to 7 parts by weight of a silane coupling agent and contains 27% or more of SiO 2 as a glass base material. The mold material in contact with the resin layer is made of glass, and is composed of a carbide or a nitride having releasability from the resin layer.
By using a molding die that is a sintered body composed of one kind or two kinds, it is possible to improve the adhesion between the glass base material and the resin layer without subjecting the glass base material to the coupling treatment.
成形型に離型処理を施さなくとも成形品の離型が容易
になる。Mold release of the molded product is facilitated without subjecting the mold to release treatment.
第１図は、レンズ上に樹脂層を形成する際の状態を示す
模式断面図である。第２図は従来の光学素子製造工程図
である。第３図は本発明の光学素子成形用型を用いた製
造工程図である。第４図は本発明の光学素子製造工程図
である。 1.型ホルダー、2.型、3.ガスケット、4.樹脂層、5.ガラ
スレンズ。FIG. 1 is a schematic cross-sectional view showing a state when a resin layer is formed on a lens. FIG. 2 is a view showing a conventional optical element manufacturing process. FIG. 3 is a manufacturing process diagram using the optical element molding die of the present invention. FIG. 4 is a view showing a manufacturing process of the optical element of the present invention. 1. Mold holder, 2. Mold, 3. Gasket, 4. Resin layer, 5. Glass lens.
Claims (3)
成物を用いてガラス母材上に樹脂層を形成する光学素子
の製造方法において、前記型の樹脂層と接する部分が炭
化物結晶粒および窒化物結晶粒から選ばれる１種または
２種の焼結体からなり、前記樹脂組成物が該組成物100
重量部に対し１〜７重量部のシランカップリング剤を含
有し、かつ前記ガラス母材が27重量％以上のSiO2を含有
することを特徴とする光学素子の製造方法。1. A method for producing an optical element, comprising forming a resin layer on a glass base material by using an ultraviolet-curable resin composition in an optical element molding die, wherein a portion of the die in contact with the resin layer is a carbide crystal grain or a nitride. The resin composition is composed of one or two kinds of sintered bodies selected from crystal grains.
A method for producing an optical element, comprising 1 to 7 parts by weight of a silane coupling agent with respect to parts by weight, and the glass base material contains 27% by weight or more of SiO 2 .
C,SiCおよびMo2Cから選ばれる１種または２種以上であ
る請求項１記載の光学素子の製造方法。2. The method according to claim 1, wherein the carbide is WC, TiC, TaC, VC, ZrC, NbC, B 4
C, The method for manufacturing an optical element according to claim 1, wherein at least one selected from SiC and Mo 2 C.
る１種または２種である請求項１記載の光学素子の製造
方法。3. The method for producing an optical element according to claim 1, wherein the nitride is one kind or two kinds selected from BN and Si 3 N 4 .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2257252A JP2680175B2 (en) | 1990-09-28 | 1990-09-28 | Optical element manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2257252A JP2680175B2 (en) | 1990-09-28 | 1990-09-28 | Optical element manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04135807A JPH04135807A (en) | 1992-05-11 |
| JP2680175B2 true JP2680175B2 (en) | 1997-11-19 |
Family
ID=17303806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2257252A Expired - Fee Related JP2680175B2 (en) | 1990-09-28 | 1990-09-28 | Optical element manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2680175B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2728227B2 (en) * | 1990-09-28 | 1998-03-18 | キヤノン株式会社 | Optical element manufacturing method |
| JPH07148742A (en) * | 1993-11-26 | 1995-06-13 | Sumitomo Rubber Ind Ltd | Mold excellent in releasability |
| EP0734314B1 (en) * | 1994-09-09 | 2003-01-08 | Koninklijke Philips Electronics N.V. | Method of manufacturing a mould for use in the manufacture of an optical element comprising optical sub-elements mutually arranged in a pattern, and device for implementing such a method |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6171317A (en) * | 1984-09-14 | 1986-04-12 | Yokogawa Hokushin Electric Corp | Recorder |
| JPS6395912A (en) * | 1986-10-13 | 1988-04-26 | Matsushita Electric Ind Co Ltd | Manufacturing apparatus of composite parts |
| JPS63260831A (en) * | 1987-04-20 | 1988-10-27 | Hitachi Ltd | Forming mold for optical element |
| JPH01295835A (en) * | 1988-05-25 | 1989-11-29 | Toshiba Corp | Manufacture of optical part |
| JP2728227B2 (en) * | 1990-09-28 | 1998-03-18 | キヤノン株式会社 | Optical element manufacturing method |
-
1990
- 1990-09-28 JP JP2257252A patent/JP2680175B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04135807A (en) | 1992-05-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9676123B2 (en) | Flexible nanoimprint mold, method for fabricating the same, and mold usage on planar and curved substrate | |
| US7070862B1 (en) | Resin-bond type optical element, production method therefor and optical article | |
| YU24490A (en) | OPTICAL COMPOSITE PLASTIC PRODUCT COATED WITH MICROSTRUCTURAL MEMBRANE AND MANUFACTURING PROCEDURE | |
| EP2479779A1 (en) | Photocurable transfer sheet, and method for forming recessed and projected pattern using same | |
| US6003832A (en) | Mold of a photocured resin containing a reinforcing agent | |
| JPS60154338A (en) | Information accumulation body | |
| EP1131197B1 (en) | Method of processing a resin mold and the resin mold | |
| EP0950502A2 (en) | Three-dimensional object including an integral structural member, resin mold and manufacturing process | |
| JP2680175B2 (en) | Optical element manufacturing method | |
| JP2728227B2 (en) | Optical element manufacturing method | |
| JP2849299B2 (en) | Manufacturing method of composite precision molded products | |
| JP2001079855A (en) | Mold for photo fabrication | |
| JP3191447B2 (en) | Method of manufacturing resin-bonded aspheric lens | |
| WO2005022208A1 (en) | Methacrylic resin cast plate having surface micro structure and method of manufacturing the same | |
| JPH04254801A (en) | Optical element | |
| JP4171936B2 (en) | Resin-molding mold for resin-bonded optical element and manufacturing method | |
| JPH04320810A (en) | Manufacture of optical element | |
| JPH07186157A (en) | Mold for resin molding and its preparation | |
| JP2004163491A (en) | Optical element and its manufacturing method | |
| JPH04151242A (en) | Plastic component and optical component | |
| JPH10180893A (en) | Plastic lens and its manufacture and apparatus therefor | |
| JP3237085B2 (en) | Molded product using glass as substrate | |
| JPH01310918A (en) | Manufacture of plastic lens | |
| JPH095680A (en) | Production of plastic lens | |
| JPS5924642A (en) | Method for injection molding of shaped article with hard three-dimensional curved surface |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |