JPS6335422A - Production of optical element - Google Patents
Production of optical elementInfo
- Publication number
- JPS6335422A JPS6335422A JP17564286A JP17564286A JPS6335422A JP S6335422 A JPS6335422 A JP S6335422A JP 17564286 A JP17564286 A JP 17564286A JP 17564286 A JP17564286 A JP 17564286A JP S6335422 A JPS6335422 A JP S6335422A
- Authority
- JP
- Japan
- Prior art keywords
- optical element
- mold
- glass material
- film
- contact
- 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 43
- 238000004519 manufacturing process Methods 0.000 title claims description 14
- 239000000463 material Substances 0.000 claims abstract description 37
- 238000010438 heat treatment Methods 0.000 claims abstract description 14
- 239000010453 quartz Substances 0.000 claims abstract description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 9
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims description 9
- 239000011521 glass Substances 0.000 abstract description 23
- 238000000465 moulding Methods 0.000 abstract description 18
- 238000007796 conventional method Methods 0.000 description 2
- 241001062872 Cleyera japonica Species 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000012778 molding material Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B11/00—Pressing molten glass or performed glass reheated to equivalent low viscosity without blowing
- C03B11/12—Cooling, heating, or insulating the plunger, the mould, or the glass-pressing machine; cooling or heating of the glass in the mould
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B11/00—Pressing molten glass or performed glass reheated to equivalent low viscosity without blowing
- C03B11/06—Construction of plunger or mould
- C03B11/08—Construction of plunger or mould for making solid articles, e.g. lenses
- C03B11/084—Construction of plunger or mould for making solid articles, e.g. lenses material composition or material properties of press dies therefor
- C03B11/086—Construction of plunger or mould for making solid articles, e.g. lenses material composition or material properties of press dies therefor of coated dies
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2215/00—Press-moulding glass
- C03B2215/02—Press-mould materials
- C03B2215/08—Coated press-mould dies
- C03B2215/14—Die top coat materials, e.g. materials for the glass-contacting layers
- C03B2215/22—Non-oxide ceramics
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は光学素子の製造方法に係り、特に光学素子素材
を加熱・加圧して成形する光学素子の製造方法に関する
ものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a method for manufacturing an optical element, and particularly to a method for manufacturing an optical element in which an optical element material is molded by heating and pressing.
［咲来の技術］ 従来の光学素子の製造方法を第２図を用いて説明する。[Sakurai's technology] A conventional method for manufacturing an optical element will be explained with reference to FIG.
尚、第２図は咲来の光学素子の製造方法を示す断面図で
ある。Incidentally, FIG. 2 is a cross-sectional view showing a method of manufacturing Sakaki's optical element.
図において、２は硝子素材、４は成形用上型、６は成形
用下型、８は赤外線ヒーター、１０は本体、１２は加圧
シリンダー、１４はシールバットを表わす。In the figure, 2 is a glass material, 4 is an upper mold, 6 is a lower mold, 8 is an infrared heater, 10 is a main body, 12 is a pressure cylinder, and 14 is a seal bat.
図に示す様に従来の製造方法では、本体ｉｏ内に加熱ヒ
ーターである赤外線ヒーター８を円筒形状に配置して、
該赤外線ヒーターの８中に有する光学素子成形用上型・
下型４，６を硝子素材２の外径方向から加熱して熱伝達
を利用することにより該硝子素材２を変形可渣な温度に
加熱して、成形用上型４を加圧することにより所望の光
学素子を得ている。As shown in the figure, in the conventional manufacturing method, an infrared heater 8, which is a heating heater, is arranged in a cylindrical shape inside the main body io.
The infrared heater has an upper mold for molding an optical element.
By heating the lower molds 4 and 6 from the outer diameter direction of the glass material 2 and utilizing heat transfer, the glass material 2 is heated to a temperature at which it can be deformed, and the upper mold 4 for molding is pressurized to form the desired shape. The optical element has been obtained.
［発明が解決しようとする問題点］
しかしながら上述の説明の如〈従来の加熱方法ては、成
形用型を加熱するのに硝子素材の外径方向から該成形用
型を加熱して熱伝達を利用して成形を行っているため、
硝子素材の外径が大きくなるに従い成形用型も大型にな
り、そのために該型の昇温及び冷却に要する時間か多大
になるという問題点を有していた。[Problems to be Solved by the Invention] However, as explained above, in the conventional heating method, heat transfer is achieved by heating the mold from the outer diameter direction of the glass material. Because we use it for molding,
As the outer diameter of the glass material becomes larger, the mold for molding also becomes larger, which poses a problem in that it takes a long time to heat up and cool down the mold.
［発明の目的］
本発明は上述の問題点を除去すべくなされたものであり
、成形用型を光学素子素材の外径方向から加熱せずに、
成形用型の光学素子素材が接触する側と逆の側より加熱
し、効率良く光学素子素材を加熱することを目的とした
光学素子の製造方法を提供することにある。[Object of the Invention] The present invention has been made in order to eliminate the above-mentioned problems, and it is possible to avoid heating the mold from the outer diameter direction of the optical element material.
It is an object of the present invention to provide a method for manufacturing an optical element, which aims to efficiently heat the optical element material by heating from the opposite side of the molding mold to the side with which the optical element material contacts.
［問題点を解決するための手段］
上記目的を達成すべく、本発明は光学素子素材が接触す
る部分にＴｉ１ｌもしくはＴｉＣ膜が被覆されている石
英型を使用し、該石英型の光学素子素材か接触する側と
逆の側より加熱を行うことを特徴とする。[Means for Solving the Problems] In order to achieve the above object, the present invention uses a quartz mold whose portion in contact with the optical element material is coated with a Ti1l or TiC film, and the quartz-shaped optical element material It is characterized by heating from the side opposite to the side that comes into contact.
［実施例］
以下本発明に係る実施例を図面に基づいて具体的かつ詳
細に説明する。[Examples] Examples according to the present invention will be described below in detail based on the drawings.
第１図は本発明に係る光学素子の製造方法の一実施例を
示す断面図である。FIG. 1 is a sectional view showing an embodiment of the method for manufacturing an optical element according to the present invention.
図に示す様に、本発明に係る実施例では硝子素材２かあ
らかじめ成形で得たい所望の光学素子の形状と近似の形
状を有している０例えば成形で得たい光学素子が非球面
であれば、該非球面と近似の曲率半径を有する面形状に
されている。As shown in the figure, in the embodiment of the present invention, the glass material 2 has a shape similar to the shape of the desired optical element to be obtained by molding.For example, even if the optical element to be obtained by molding is aspherical, For example, the surface has a radius of curvature similar to that of the aspherical surface.
該硝子素材２は図示する様に石英の光学素子成形用下５
！２０の上に載置される。該成形用下型２０は該下型２
０の下端部に突設固定されている支持部材２２を介して
、本体ｌＯの下部に固設されている基台２４に接続固定
されて支持固定されている。また図示する様に、成形用
下型２０と基台２４の間には赤外線ヒーター（下部）２
６か設けられている。該赤外線ヒーター２６は支持部材
２２の周囲をリング状に配設されている。また石英の光
学素子成形用下型２０の硝子素材２か接触する部分には
、ＴｉＣもしくはＴｉＮ［２８か被覆されている。The glass material 2 is a quartz optical element molding material 5 as shown in the figure.
! 20. The lower mold 20 is the lower mold 2.
The main body 10 is connected and fixed to a base 24 fixed to the lower part of the main body 10 via a supporting member 22 which is fixed and protruding from the lower end of the main body 10. Furthermore, as shown in the figure, an infrared heater (lower part) 2 is placed between the lower mold 20 and the base 24.
There are 6. The infrared heater 26 is arranged in a ring shape around the support member 22. Further, the portion of the lower mold 20 for molding an optical element made of quartz that comes into contact with the glass material 2 is coated with TiC or TiN [28].
また硝子素材２の上方には、石英の光学素子成形用上型
３０か、該上型３０の−Ｅ端部に固設されている加圧シ
リンダー１２によって硝子素材２の外径方向に対し直角
の方向に移効町癒に設けられている。該加圧シリンダー
１２は図示する様に本体ｌＯを貫通して設けられている
。Further, above the glass material 2, a quartz upper mold 30 for molding an optical element or a pressurizing cylinder 12 fixed at the -E end of the upper mold 30 is placed at right angles to the outer diameter direction of the glass material 2. It is located in the direction of the town Yui. The pressurizing cylinder 12 is provided through the main body 1O as shown.
また本体ｌＯと加圧シリンダー１２との間には、シール
バット１４が設けられている。Further, a seal butt 14 is provided between the main body 1O and the pressurizing cylinder 12.
また成形用上型３０の上端部の近傍には、赤外線ヒータ
ー（ｋ部）３２が該上型３０と同様の方向に移動可能に
設けられている。該赤外線ヒーター３２は加圧シリンダ
ー１２の周囲をリング状に配設されている。また石英の
光学素子成形用上型３０の硝子素材２か接触する部分に
は、下型２０と同様にＴｉＣもしくはＴｉＮ膜３４が被
覆されている。Further, an infrared heater (k section) 32 is provided near the upper end of the upper mold 30 so as to be movable in the same direction as the upper mold 30. The infrared heater 32 is arranged in a ring shape around the pressurizing cylinder 12. Further, the portion of the quartz upper mold 30 for molding an optical element that comes into contact with the glass material 2 is coated with a TiC or TiN film 34, similarly to the lower mold 20.
以上か本発明に係る光学素子の製造装置の一実施例の説
明である。The above is a description of one embodiment of the optical element manufacturing apparatus according to the present invention.
次に本発明に係る光学素子の製造方法を説明する。Next, a method for manufacturing an optical element according to the present invention will be explained.
成形用下型２０上にあらかじめ所望近似球面に研庁され
ている硝子素材２をｔａする。そして成形用上型３０を
憤子素材２に適宜の圧力て接触させる。A glass material 2, which has been shaped in advance into a desired approximate spherical surface, is placed on a lower mold 20 for molding. Then, the upper mold 30 for molding is brought into contact with the insulating material 2 with appropriate pressure.
この状態で赤外線ヒーター２６．及び３２に電流を流し
、赤外線を発生させる。赤外線ヒーター（上部）３２よ
り照射された赤外線は、成形用上′！ｌ１３０透過し、
上型３０の光学素子を形成する面のＴｉＣもしくはＴｉ
Ｎ膜３４に照射され、上型３０のＩｇｉ３４に接触して
いる硝子素材２を加熱する。In this state, the infrared heater 26. and 32 to generate infrared rays. The infrared rays emitted from the infrared heater (upper part) 32 are used for molding. l130 transmitted,
TiC or Ti on the surface of the upper mold 30 that forms the optical element
The N film 34 is irradiated and the glass material 2 in contact with the Igi 34 of the upper mold 30 is heated.
また赤外線ヒーター（下部）２６より照射された赤外線
は、成形用下型２０を透過し、下型２０の光学素子を形
成する面のＴｉＣもしくはＴｉＮ膜２８に照射され、下
ｙ！Ｉ！２０の１１９２８に畿こされている硝子素材２
を加熱する。そして硝子素材２が変形に必要な温度に達
するまて加熱を続ける。Further, the infrared rays emitted from the infrared heater (lower part) 26 pass through the lower molding mold 20 and are irradiated onto the TiC or TiN film 28 on the surface of the lower mold 20 on which the optical element will be formed, and the lower y! I! Glass material 2 that is glued to 11928 of 20
heat up. Heating is then continued until the glass material 2 reaches a temperature necessary for deformation.
該硝子素材２か変形可壱の温度に達したら、加圧シリン
ダー１２により成形用上型３０を加圧して硝子素材２を
変形させる。When the glass material 2 reaches a deformable temperature, the upper mold 30 for molding is pressurized by the pressurizing cylinder 12 to deform the glass material 2.
そうして光学素子が出来上る。In this way, the optical element is completed.
［発明の効果］
以上詳細かつ具体的に説明した様に、本発明によれば成
形用型を加熱するのに類型の光学２Ｌ′子素材が接触す
る側と逆の側より加熱を行うので、効率良く光学素子素
材を加熱することかでき、そのため光学素子の成形サイ
クルを短縮することが可能となる。[Effects of the Invention] As described above in detail and concretely, according to the present invention, heating is performed from the side opposite to the side where the similar optical 2L' element material contacts when heating the mold. The optical element material can be heated efficiently, and therefore the molding cycle of the optical element can be shortened.
第１図は本発明に係る光学素子の製造方法の一実施例を
示す断面図である。
第２図は従来の光学素子の製造方法を示す断面図である
。
２・・・硝子素材
２０．３０・・・石英の成形用下型、上型２６．３２・
・・赤外線ヒーター（下部、上部）代理人 弁理士
山 下 穣 平
第１ 図
第２図FIG. 1 is a sectional view showing an embodiment of the method for manufacturing an optical element according to the present invention. FIG. 2 is a sectional view showing a conventional method of manufacturing an optical element. 2... Glass material 20.30... Quartz molding lower mold, upper mold 26.32.
・・Infrared heater (lower, upper) agent Patent attorney
Jo Taira Yamashita Figure 1 Figure 2
Claims (1)
子の光学表面を形成する光学素子の製造方法において；
前記光学素子素材が接触する部分にＴｉＮもしくはＴｉ
Ｃ膜が被覆されている石英型を使用し、該石英型の光学
素子素材が接触する側と逆の側より加熱を行うことを特
徴とする、光学素子の製造方法。(1) In a method for manufacturing an optical element, the optical surface of the optical element is formed by heating and pressurizing the optical element material;
TiN or Ti is applied to the part where the optical element material contacts.
A method for manufacturing an optical element, which uses a quartz mold coated with a C film, and heats the quartz mold from the side opposite to the side in contact with the optical element material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61175642A JPH0791077B2 (en) | 1986-07-28 | 1986-07-28 | Optical element manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61175642A JPH0791077B2 (en) | 1986-07-28 | 1986-07-28 | Optical element manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6335422A true JPS6335422A (en) | 1988-02-16 |
| JPH0791077B2 JPH0791077B2 (en) | 1995-10-04 |
Family
ID=15999654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61175642A Expired - Fee Related JPH0791077B2 (en) | 1986-07-28 | 1986-07-28 | Optical element manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0791077B2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60118638A (en) * | 1983-11-26 | 1985-06-26 | Hoya Corp | Mold for forming glass lens |
| JPS60145919A (en) * | 1983-12-29 | 1985-08-01 | Ohara Inc | Press-molding of high-precision formed glass article |
-
1986
- 1986-07-28 JP JP61175642A patent/JPH0791077B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60118638A (en) * | 1983-11-26 | 1985-06-26 | Hoya Corp | Mold for forming glass lens |
| JPS60145919A (en) * | 1983-12-29 | 1985-08-01 | Ohara Inc | Press-molding of high-precision formed glass article |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0791077B2 (en) | 1995-10-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2803046B2 (en) | Optical element molding method | |
| JPS6335422A (en) | Production of optical element | |
| JP2004074734A (en) | Plastic welding method | |
| CN207619264U (en) | A kind of glass hot briquetting mold | |
| JPH0481532B2 (en) | ||
| JPS6395131A (en) | Glass-pressing apparatus | |
| JP3826090B2 (en) | Optical element molding apparatus and optical element molding method | |
| JPH05178625A (en) | Method for forming glass lens | |
| JPS62128932A (en) | Molding method for glass lens | |
| JP2509305B2 (en) | Glass lens forming method and apparatus | |
| JPS587367A (en) | Manufacture of on-demand type nozzle assembly | |
| JP2624875B2 (en) | Heating box for denture base molding | |
| JPS61266322A (en) | Production of optical element | |
| JP3068261B2 (en) | Glass optical element molding method | |
| JPS6227336A (en) | Forming device for optical parts | |
| JP5186174B2 (en) | Method for manufacturing molded article and apparatus therefor | |
| JPS63295448A (en) | Method for molding glass lens | |
| JPH06144843A (en) | Production of optical element | |
| JPS6259539A (en) | Heating method for compression molding of optical element | |
| JPS63222022A (en) | Molding method of glass lens | |
| JPS62297227A (en) | Forming of glass lens | |
| JPS63295450A (en) | Glass pressing device | |
| JPS6111462B2 (en) | ||
| JPH0630132U (en) | Glass forming equipment heating furnace | |
| JPH02120242A (en) | Method for forming optical elements |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |