JPS63156022A - Process for releasing optical element from forming die - Google Patents
Process for releasing optical element from forming dieInfo
- Publication number
- JPS63156022A JPS63156022A JP30291986A JP30291986A JPS63156022A JP S63156022 A JPS63156022 A JP S63156022A JP 30291986 A JP30291986 A JP 30291986A JP 30291986 A JP30291986 A JP 30291986A JP S63156022 A JPS63156022 A JP S63156022A
- Authority
- JP
- Japan
- Prior art keywords
- optical element
- mold
- forming
- die
- molding
- 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 83
- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000000465 moulding Methods 0.000 claims description 29
- 239000007789 gas Substances 0.000 claims description 28
- 239000011261 inert gas Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 7
- 230000002411 adverse Effects 0.000 abstract description 5
- 239000000463 material Substances 0.000 description 5
- 238000003825 pressing Methods 0.000 description 4
- 239000011521 glass Substances 0.000 description 3
- 238000000748 compression moulding Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 239000005373 porous glass Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 238000010583 slow cooling 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
- C03B11/06—Construction of plunger or mould
- C03B11/08—Construction of plunger or mould for making solid articles, e.g. lenses
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2215/00—Press-moulding glass
- C03B2215/66—Means for providing special atmospheres, e.g. reduced pressure, inert gas, reducing gas, clean room
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2215/00—Press-moulding glass
- C03B2215/68—Means for parting the die from the pressed glass other than by cooling or use of a take-out
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
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抑圧成形方法における光学素子の離
型方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a mold release method for an optical element in a compression molding method for an optical element.
［従来の技術］
光学素子の押圧成形においては対向して配設した上型、
下型からなる一対の金型により光学素材を押圧して光学
素子を成形し、その後上記上型と下型を相対的に開放し
、成形品である光学素子を取り出している。かかる場合
、金型は光学素子が上型と下型の成形面の形状等により
型離れ性の相違によりいずれか一方の型の成形面に付着
しつつ開放された光学素子の両型間からの取り出しに不
都合が生じていた。[Prior art] In the press molding of optical elements, upper molds are placed facing each other,
An optical element is molded by pressing an optical material with a pair of molds consisting of a lower mold, and then the upper mold and the lower mold are relatively opened to take out the molded optical element. In such a case, the mold is such that the optical element adheres to the molding surface of one of the molds due to differences in mold releasability due to the shapes of the molding surfaces of the upper and lower molds, and the released optical element is removed from between the two molds. There was a problem with taking it out.
そこで、従来、光学素子を取り出す際には両型にそれぞ
れ突出ピンを設け、この突出ビンに機械的な力を加えて
、型の成形面に付着した光学素子を押圧して離型を行な
っていた。しかし、光学素子の上記突出ビンによる押圧
部分及びその周囲で微少な割れが発生し光学素子に悪影
響を与えていた。更に、上記割れの部分において光学素
子の破片が！Ａ＃し、この破片が金型の成形面に付着し
、繰り返し成形作業によって抑圧成形される光学素子の
光学機能面に欠陥を生じさせる問題点があった。Conventionally, when taking out an optical element, ejector pins were provided on both molds, and mechanical force was applied to the ejector pins to press the optical element attached to the molding surface of the mold and release the mold. Ta. However, minute cracks were generated in and around the pressed portion of the optical element by the protruding bottle, which adversely affected the optical element. Furthermore, there are pieces of the optical element in the cracked part! A: However, there was a problem in that these fragments adhered to the molding surface of the mold, causing defects in the optical functional surface of the optical element that was subjected to compression molding through repeated molding operations.
また、特開昭５９−１９５５４１号において成形型とガ
ラスレンズとの直接接触を避けるため。Also, in JP-A-59-195541, in order to avoid direct contact between the mold and the glass lens.
上下一対の型を多孔質材で形成し、鎖孔を介して型のガ
ラスレンズの光学ａ俺面を形成する部位にガラスを供給
してガスフィルムを形成し、このガスフィルムにレンズ
素材を支持してガラスレンズを製造する方法と装置が開
示されているが、高精度の成形面を得ることが難しく、
さらに型とガラスとが全く接触しない状態を実現するこ
とが難しい等の問題点があった。A pair of upper and lower molds is formed from a porous material, and glass is supplied through chain holes to the part of the mold that will form the optical a-face of the glass lens to form a gas film, and the lens material is supported on this gas film. However, it is difficult to obtain a high-precision molding surface, and
Furthermore, there were other problems such as difficulty in achieving a state where the mold and glass do not come into contact with each other at all.
そこで本発明は上記問題点に鑑みなされたもので押圧成
形された光学素子に機械的な押圧力を直接付加せず光学
素子を離型する方法の提供を目的とする。SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a method for releasing a press-molded optical element from a mold without directly applying mechanical pressing force to the optical element.
［問題点を解決するするための手段］
本発明は上記問題点を解決するめに、成形型の光学素子
の光学機能面を成形する成形面以外の部位に開口された
管路を成形型内に設けるとともに、上記成形型により光
学素子を押圧成形後、上記管路に高圧ガスを供給して上
記光学素子を＃型するものである。[Means for Solving the Problems] In order to solve the above-mentioned problems, the present invention provides a method in which a conduit that is opened in a part other than the molding surface where the optical functional surface of the optical element of the mold is molded is provided in the mold. In addition, after the optical element is press-molded using the mold, high-pressure gas is supplied to the conduit to shape the optical element into a # shape.
［作 用］
Ｌ記構成による離型方法によれば、ガス圧により離型す
ることができる。したがって、離型に際して光学素子に
悪影響を与えることがない。[Function] According to the mold release method according to configuration L, the mold can be released by gas pressure. Therefore, the optical element is not adversely affected during mold release.
［実 施 例］
以下、本発明の光学素子の離型方法の実施例を図面を用
いて詳細に説明する。[Example] Hereinafter, an example of the mold release method for an optical element of the present invention will be described in detail with reference to the drawings.
（第１実施例）
第１図から第５図は本発明の光学素子の離型方法の第１
実施例を示し１図において１で示すのは光学素子の離型
方法を実施するための成形型で。(First Example) Figures 1 to 5 show a first example of the mold release method for an optical element of the present invention.
1 shows an example. In FIG. 1, numeral 1 indicates a mold for carrying out the mold release method for optical elements.
この成形型１は光学素材２（光学素子３）を抑圧し、か
つ拡開可使に同軸上に対向して配設された対をなす上型
５及び下型６とからなっている。上記上型５及び下型６
はそれぞれレンズ面成形面５ａ、６ａが形成され、この
成形面５ａ及び６ａは上型５及び下型６の外周まで連続
して形状が形成されるとともに、光学素子３の光学機能
面３ａを成形する部位（有効径内部位）５ｂ。This mold 1 suppresses an optical material 2 (optical element 3) and is composed of a pair of upper mold 5 and lower mold 6 disposed coaxially and facing each other so as to be expandable. Above upper mold 5 and lower mold 6
are formed with lens surface molding surfaces 5a and 6a, respectively, and these molding surfaces 5a and 6a are continuously shaped to the outer periphery of the upper mold 5 and lower mold 6, and mold the optical functional surface 3a of the optical element 3. part (effective diameter inner part) 5b.
６ｂと、この有効径内部位５ｂ、６ｂの外方に形成され
た光学機能面３ａを成形する以外の部位（有効径外部位
）５ｃ、６ｃとから形成されている。有効径外部位５ｃ
、６ｃには輪帯状の凹部７．８がそれぞれ形設されると
ともに、この四部７．８には上型５．下型６内にそれぞ
れ設けた高圧ガス送通用の管路１０，１１が連通され、
この管路１０，１１の開口部１２．１３が設けられてい
る。更に、この管路１０，１１の一方の端部は上記上型
５．下型６の外部にそれぞれ開口されており、この開口
部に取り付けられた管１５゜１６を介して外部の高圧ガ
ス源（図示省略）と接続され、Ｎ２．Ａｒ等の不活性ガ
スを高圧状態下で上記四部７．８に供給し得るように成
形型１を構成しである。6b, and portions 5c, 6c other than those for forming the optical functional surface 3a formed outside the effective diameter inner portions 5b, 6b (effective diameter outer portions). Effective diameter outer part 5c
, 6c are each formed with annular concave portions 7.8, and the upper mold 5.8 is formed in these four portions 7.8. Pipe lines 10 and 11 for high-pressure gas transmission provided in the lower mold 6 are communicated with each other,
Openings 12.13 of this line 10, 11 are provided. Furthermore, one end of these conduits 10 and 11 is connected to the upper mold 5. They are respectively opened to the outside of the lower mold 6 and connected to an external high-pressure gas source (not shown) through pipes 15 and 16 attached to these openings. The mold 1 is configured so that an inert gas such as Ar can be supplied to the four parts 7.8 under high pressure.
次に、上記構成からなる成形型により抑圧成形された光
学素子の離型方法について第３図から第５図を用いて説
明する。Next, a method for releasing an optical element that has been compression-molded using a mold having the above configuration will be described with reference to FIGS. 3 to 5.
まず、上型５と下型６を拡開した状態で上型５と下型６
間に光学素材２を搬送手段（図示省略）にて搬送し、下
型６に光学素材を載こする。First, with the upper mold 5 and lower mold 6 expanded, the upper mold 5 and the lower mold 6 are
In the meantime, the optical material 2 is transported by a transport means (not shown), and the optical material is placed on the lower mold 6.
次に上型５と下型６を相対的に接近する方向に抑圧機構
（図示省略）により移動させつつ光学素子３を抑圧成形
する。かかる押圧成形は、上記光学素子３が上記成形型
１のレンズ面成形面５ａ。Next, the optical element 3 is pressed and molded while moving the upper mold 5 and the lower mold 6 in a direction in which they approach each other relatively to each other by a restraining mechanism (not shown). In such press molding, the optical element 3 is formed on the lens surface molding surface 5a of the mold 1.
６ａ即ち有効径部位５ｂ、６ｂ及び有効径外部位５ｃ
、６ｃに接触しつつ行われる（第３図参照）、かかる状
態下で上型５と下型６により光学素子３の抑圧状態を必
要時間保持しつつ光学素子３の徐冷等の押圧成形工程を
経て後上型５と下型６の押圧力を解除する０次に、押圧
力が解除された状態で、高圧ガスを高圧ガス源から管１
５゜１６、管路１０．１１を介して有効径外部位５ｂ
、６ｂに形設した輪帯状の凹部７，８の双方に個別的に
圧送し、上記成形面５ａ、６ａに接触（付着）した状態
の光学素子３を凹部７，８に圧送されたガス圧を介して
離型する。（第４図参照）、そして光学素子３が離型さ
れたとき、光学素子３と成形面５ａ、６ａとの接触状態
が解除されるので高圧ガスのガス圧が降下し、そのガス
圧の降下を圧力スイッチ（図示省略）により検出し、上
記凹部７，８への高圧ガスの供給を停止する。この後対
向する上型５と下型６とを相対的に拡開しく第５図参照
）、成形品である光学素子３を取り出す、かかる離型に
際して四部７．８に導入するガス圧は光学素子の直径が
１５ｍｍの場合３９ ｋｇ／ ｃｍ２で実施することが
できた。6a, that is, the effective diameter portions 5b, 6b and the outer effective diameter portion 5c.
, 6c (see FIG. 3). Under such conditions, the optical element 3 is kept in a suppressed state for the necessary time by the upper die 5 and the lower die 6, and the press molding process includes slow cooling of the optical element 3. After that, the pressing force of the upper mold 5 and lower mold 6 is released.Next, with the pressing force released, high pressure gas is introduced from the high pressure gas source into the pipe 1.
5°16, effective diameter outer part 5b via conduit 10.11
, 6b, and the optical element 3 in contact with (attached to) the molding surfaces 5a, 6a is compressed by the pressure of the gas pumped into the recesses 7, 8. Release from the mold via . (See Fig. 4) When the optical element 3 is released from the mold, the contact between the optical element 3 and the molding surfaces 5a and 6a is released, so the gas pressure of the high-pressure gas drops; is detected by a pressure switch (not shown), and the supply of high pressure gas to the recesses 7 and 8 is stopped. After this, the opposing upper mold 5 and lower mold 6 are relatively expanded (see FIG. 5) and the optical element 3, which is a molded product, is taken out. When the diameter of the element was 15 mm, it could be carried out at 39 kg/cm2.
なお、上記光学素子の離型方法は成形面に形設する凹部
は図示した半円弧状の断面形状に限定されず、例えば角
断面形状等の任意の凹形状に形設して実施することがで
きる。更に、上型５と下型６とはそれぞれ相対的に接近
、離反し得る構成であればよく、上型５．下型６の双方
あるいはいずれか一方のみ移動し得る成形型１にて実施
できるものである。In addition, in the above-mentioned mold release method for an optical element, the recess formed in the molding surface is not limited to the semicircular cross-sectional shape shown in the figure, but can be carried out by forming the recess in any desired recessed shape, such as a square cross-sectional shape. can. Further, the upper mold 5 and the lower mold 6 may be configured so that they can approach and separate from each other relatively, and the upper mold 5. This can be carried out using the mold 1 in which both or only one of the lower molds 6 can be moved.
本実施例によれば、押圧成形した光学素子に機械的手段
により直接に力を加えることなく離型でき、光学素子に
割れ等が発生するのを防止できる。更に、ガス圧の降下
により離型を確認できる。また、高圧ガスの供給は離型
時のみ行なえばよく、ガスの消費量が少なくコスト的に
有利である作用効果を併せ持つものである。According to this embodiment, it is possible to release the press-molded optical element from the mold without directly applying force by mechanical means, and it is possible to prevent cracks from occurring in the optical element. Furthermore, release from the mold can be confirmed by a drop in gas pressure. Further, the supply of high-pressure gas only needs to be carried out during demolding, which has the effect of reducing gas consumption and being advantageous in terms of cost.
（第２実施例）
第６図ａ、ｂは本発明の光学素子の離型方法の第２実施
例を示し、図において２０で示すのは上記光学素子の離
型方法を実施するための成形型で、上型２１のみを図示
し、下型は上型２１と同一構成からなるので図示を省略
しである。(Second Embodiment) FIGS. 6a and 6b show a second embodiment of the mold release method for an optical element of the present invention, and in the figure, 20 indicates the molding for implementing the above-mentioned optical element mold release method. Among the molds, only the upper mold 21 is illustrated, and the lower mold has the same structure as the upper mold 21, so illustration thereof is omitted.
本実施例における光学素子の離型方法は、上型２１内に
設けた複数本からなる管路２２を介して、高圧ガスを圧
送し、このガス圧により光学素子の離型を行なうもので
、離型工程は上記第１実施例と同様であり、その説明を
省略するとともに、成形型の同一部分については同一番
号を付しその説明を省略する。The method for releasing the optical element in this embodiment is to pump high-pressure gas through a plurality of pipes 22 provided in the upper mold 21, and release the optical element from the mold using this gas pressure. The mold release process is the same as that of the first embodiment, and its explanation will be omitted, and the same parts of the mold will be given the same numbers and their explanation will be omitted.
かかる上記複数本からなる管路２２は上型２１内部にそ
れぞれ個別的に設けられるとともに、上型２１の上端部
２１ａ（図において上側）とレンズ面成形面５ａ間に貫
設され、かつ、成形面５ａにおける管路２２の開口部２
２ａは、有効径外部位５ｃに輪帯状に設けられている（
第６図す参照）、また、上型２１の上端部２１ａには高
圧ガス導入管２３の端部２３ａが螺着あるいは嵌合等の
手段より上型２１と気密性を保持しつつ取り付けられて
いる。この高圧ガス導入管２３は図示しない高圧ガス源
に連結されている。The plurality of conduits 22 are individually provided inside the upper mold 21, and penetrate between the upper end 21a (upper side in the figure) of the upper mold 21 and the lens surface molding surface 5a. Opening 2 of conduit 22 in surface 5a
2a is provided in an annular shape at the effective diameter outer portion 5c (
Also, the end 23a of the high-pressure gas introduction pipe 23 is attached to the upper end 21a of the upper mold 21 by means such as screwing or fitting while maintaining airtightness with the upper mold 21. There is. This high pressure gas introduction pipe 23 is connected to a high pressure gas source (not shown).
なお、上記成形型２０は上記第１実施例と同様に有効径
外部位５ｃ、６ｃＥ輪帯状の凹部７゜８を形設し、この
四部７．８に複数本の管路２２の開口部２２ａを輪帯状
に設けて構成して実施できる。更に、本実施例の成形型
２０と上記第１実施例の成形型１との上型、下型を組み
合せて成形型を構成して実施することができる。As in the first embodiment, the mold 20 has annular concave portions 7.8 formed in the outer effective diameter portions 5c and 6cE, and the openings 22a of the plurality of conduits 22 are formed in the four portions 7.8. It can be implemented by arranging it in an annular shape. Furthermore, the mold 20 of this embodiment and the upper and lower molds of the mold 1 of the first embodiment described above can be combined to form a mold.
本実施例によれば上記第１実施例と同様な作用効果を奏
することができる。According to this embodiment, the same effects as those of the first embodiment can be achieved.
（第３実施例）
第７図は本発明の光学素子の離型方法のｉ３３実施を示
す０本実施例においては、上記第１実施例と同様な手順
にて光学素子３のＭ型が行なわれた後、高圧ガスの供給
を停止し、高圧ガスの供給した上型５の管路を介して凹
部７に負圧を加え、上記離型した光学素子３を凹Ｆ！Ｂ
’ｙにより上型５の成形面５ａに吸引保持しつつ図示す
るごとく上型５、下型６を相対的に後退させて型を拡開
する。(Third Embodiment) FIG. 7 shows the i33 implementation of the optical element mold release method of the present invention. In this embodiment, the M molding of the optical element 3 is performed in the same procedure as in the first embodiment. After that, the supply of high-pressure gas is stopped, and negative pressure is applied to the recess 7 through the conduit of the upper mold 5 to which the high-pressure gas was supplied, and the released optical element 3 is placed in the recess F! B
While being suctioned and held on the molding surface 5a of the upper mold 5 by 'y, the upper mold 5 and the lower mold 6 are relatively retreated as shown in the figure to expand the mold.
その後、搬送装ａ（図示省略）を吸引保持された光学素
子３の受は渡しし得る位置まで前進させ、かかる状態で
上記光学素子３を吸引保持する負圧を解除し、上記搬送
装置により光学素子３の取り出しを行なう、なお、上記
成形型ｌは上記第１実施例と同一構成からなるので同一
部分には同一番号を付し説明は省略しである。Thereafter, the transport device a (not shown) is advanced to a position where the support for the optical element 3 held by suction can be transferred, and in this state, the negative pressure sucking and holding the optical element 3 is released, and the transport device Note that the mold l from which the element 3 is taken out has the same structure as the first embodiment, so the same parts are given the same numbers and their explanations are omitted.
本実施例によれば、上記第１．２実施例と同様な作用効
果を得られるとともに、光学素子を容易に取り出すこと
ができる等の搬送上の利点が得られる効果を奏する。According to this embodiment, it is possible to obtain the same effects as in the above-mentioned Embodiment 1.2, and also to have advantages in transportation, such as being able to easily take out the optical element.
なお、本実施例は下型にて光学素子を吸引保持して実施
できるとともに、上記第２実施例の離型方法に用いた成
形型を用いて実施することができ、かかる実施に際して
も上記と同様な作用効果を奏することができる。Note that this example can be carried out by suctioning and holding the optical element with a lower mold, and can also be carried out using the mold used in the mold release method of the second example, and the above method can also be used for such implementation. Similar effects can be achieved.
［発明の効果］
以上のように本発明の光学素子の離型方法によれば、押
圧成形された光学素子に悪影響を及ぼすことなく、かつ
クリーンな状態で離型することができる。更に、ガス圧
の降下により離型が確認できるとともに、離型時のみに
高圧ガスの送入するため、ガスの消費量が少なく経済性
に優れている。[Effects of the Invention] As described above, according to the method for releasing an optical element of the present invention, it is possible to release the press-molded optical element from the mold in a clean state without adversely affecting the optical element. Furthermore, release from the mold can be confirmed by the drop in gas pressure, and since high-pressure gas is introduced only during release, the amount of gas consumed is small and is highly economical.
また、高圧ガス送入用の管路を用いて離型後の光学素子
を吸引することができ、光学素子の取り出しに際して搬
送上の利点を有するものである。Furthermore, the optical element after being released from the mold can be sucked using the high-pressure gas supply pipe line, which is advantageous in terms of transportation when taking out the optical element.
第１図から第５図は本発明の第１実施例を示し、第１図
は一部破断して示す成形型の部分断面図、第２図は上型
の成形面を示す平面図、第３図から第５図は離型工程を
示す説明図、第６図は本発明の第２実施例を示し、第６
図ａは成形型の上型を示す断面図、第６図すは上型の成
形面を示す平面図、第７図は本発明の第３実施例を示す
一部破断した成形型の部分断面図である。
１．２０・・・成形型
３・・・光学素子
５．２１・・・上型
６・・・下型
５ａ、６ａ・・・レンズ面成形面
５ｂ、６ｂ・・・有効径内部位
５ｃ、６ｃ・・・有効径外部位
７．８・・・凹部
１０．１１．２２・・・管路
特許出願人 オリンパス光学工業株式会社゛Ｉ−−−
−／
１ 成形型
５ 上型
１０ 管路
１１ 管路
第３図
−第４図
第５図
第６図1 to 5 show a first embodiment of the present invention, in which FIG. 1 is a partial cross-sectional view of the mold partially cut away, FIG. 2 is a plan view showing the molding surface of the upper mold, and FIG. 3 to 5 are explanatory diagrams showing the mold release process, and FIG. 6 shows the second embodiment of the present invention.
Figure a is a cross-sectional view showing the upper mold of the mold, Figure 6 is a plan view showing the molding surface of the upper mold, and Figure 7 is a partial cross-section of a partially broken mold showing the third embodiment of the present invention. It is a diagram. 1.20... Molding die 3... Optical element 5.21... Upper die 6... Lower die 5a, 6a... Lens surface molding surface 5b, 6b... Effective diameter inner portion 5c, 6c... Portion outside the effective diameter 7.8... Concave portion 10.11.22... Pipe patent applicant Olympus Optical Industry Co., Ltd. I---
-/ 1 Molding mold 5 Upper mold 10 Pipe line 11 Pipe line Fig. 3 - Fig. 4 Fig. 5 Fig. 6
Claims (3)
成る成形型により押圧成形する光学素子の成形における
光学素子の離型方法において、 上記成形型の上記光学素子の光学機能面を 成形する成形面以外の部位に開口された管路を成形型内
に設けるとともに、上記成形型により光学素子を押圧成
形後、上記管路に高圧ガスを供給して上記成形型と成形
後の光学素子を分離することを特徴とする光学素子の離
型方法。(1) In a mold release method for an optical element in the molding of an optical element that is press-molded using a mold consisting of a pair of upper and lower molds arranged coaxially and facing each other, the optical functional surface of the optical element of the mold A conduit that is open to a part other than the molding surface for molding is provided in the mold, and after the optical element is press-molded by the mold, high-pressure gas is supplied to the conduit to connect the mold with the mold after the molding. A method for releasing an optical element, the method comprising separating the optical element.
る特許請求の範囲第１項記載の光学素子の離型方法。(2) The method for releasing an optical element according to claim 1, wherein the high-pressure gas is an inert gas.
用された負圧により吸引保持されることを特徴とする特
許請求の範囲第１項記載の光学素子の離型方法。(3) The mold release method for an optical element according to claim 1, wherein the mold-released optical element is suction-held by a negative pressure applied through the conduit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30291986A JPH0645467B2 (en) | 1986-12-19 | 1986-12-19 | Method of releasing optical element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30291986A JPH0645467B2 (en) | 1986-12-19 | 1986-12-19 | Method of releasing optical element |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63156022A true JPS63156022A (en) | 1988-06-29 |
| JPH0645467B2 JPH0645467B2 (en) | 1994-06-15 |
Family
ID=17914695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30291986A Expired - Fee Related JPH0645467B2 (en) | 1986-12-19 | 1986-12-19 | Method of releasing optical element |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0645467B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010254514A (en) * | 2009-04-24 | 2010-11-11 | Hoya Corp | Method for manufacturing glass base material, method for manufacturing preform for precision press-molding, and method for manufacturing optical element |
-
1986
- 1986-12-19 JP JP30291986A patent/JPH0645467B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010254514A (en) * | 2009-04-24 | 2010-11-11 | Hoya Corp | Method for manufacturing glass base material, method for manufacturing preform for precision press-molding, and method for manufacturing optical element |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0645467B2 (en) | 1994-06-15 |
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