JPH0331241B2 - - Google Patents
Info
- Publication number
- JPH0331241B2 JPH0331241B2 JP58127377A JP12737783A JPH0331241B2 JP H0331241 B2 JPH0331241 B2 JP H0331241B2 JP 58127377 A JP58127377 A JP 58127377A JP 12737783 A JP12737783 A JP 12737783A JP H0331241 B2 JPH0331241 B2 JP H0331241B2
- Authority
- JP
- Japan
- Prior art keywords
- transparent glass
- top plate
- metal ring
- lens cap
- hole
- 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 - Lifetime
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C27/00—Joining pieces of glass to pieces of other inorganic material; Joining glass to glass other than by fusing
- C03C27/02—Joining pieces of glass to pieces of other inorganic material; Joining glass to glass other than by fusing by fusing glass directly to metal
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Joining Of Glass To Other Materials (AREA)
- Lens Barrels (AREA)
- Blocking Light For Cameras (AREA)
Description
【発明の詳細な説明】
本発明はCdS素子、発光ダイオード等の光学素
子に用いられるレンズキヤツプの製造方法に関す
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing a lens cap used for optical elements such as CdS elements and light emitting diodes.
従来CdS素子収納用気密容器として用いられる
レンズキヤツプは、第１図に示すように、筒状部
２と天板部３と天板部２に穿設された透孔４とフ
ランジ部５とを有するコバールと称せられる鉄・
ニツケル・コバルト合金（Fe53％、Ni28％、
Co18％）製の金属環１の透孔４に、ホウケイ酸
ガラスよりなるレンズ状の透明ガラス６を気密に
溶着したものである。 A lens cap conventionally used as an airtight container for storing a CdS element has a cylindrical part 2, a top plate part 3, a through hole 4 bored in the top plate part 2, and a flange part 5, as shown in FIG. The iron called Kovar, which has
Nickel-cobalt alloy (Fe53%, Ni28%,
A lens-shaped transparent glass 6 made of borosilicate glass is hermetically welded to a through hole 4 of a metal ring 1 made of (18% Co).
この種レンズキヤツプは、金属環１に予備酸化
処理を施したのち、第２図に示すように、グラフ
アイトよりなる下型封着治具８と上型封着治具９
で構成された封着治具７を用いて、その天板部３
上に透明ガラス円板６ａを載置して加熱すること
により、透明ガラス円板６ａが溶融して天板部３
上に溶着するとともに、溶融ガラスの表面張力で
両面に凸状の透明ガラス６となつて得られる。 This type of lens cap is manufactured by pre-oxidizing the metal ring 1, and as shown in FIG.
Using the sealing jig 7 composed of
By placing the transparent glass disk 6a on top and heating it, the transparent glass disk 6a melts and forms the top plate part 3.
The transparent glass 6 is welded to the top and has convex shapes on both sides due to the surface tension of the molten glass.
しかしながら、このような溶融ガラスの表面張
力のみを利用する方法では、加熱溶着の際の温度
制御を相当厳格にしないと、透明ガラス６に所定
のレンズ形状が得られないし、透明ガラス６が金
属環１の天板部３に対して平面状に溶着されてい
るため、溶着強度も小さく、レンズキヤツプのフ
ランジ部５をステムに溶接する際の応力等によつ
て、透明ガラス６が天板部３から剥離しやすく、
気密性維持に難点があつた。 However, with such a method that utilizes only the surface tension of molten glass, it is not possible to obtain a desired lens shape on the transparent glass 6 unless temperature control during heat welding is extremely strict, and the transparent glass 6 cannot be formed into a metal ring. Since the transparent glass 6 is flatly welded to the top plate part 3 of the lens cap, the welding strength is low, and the stress caused when welding the flange part 5 of the lens cap to the stem causes the transparent glass 6 to be welded to the top plate part 3. Easy to peel off from
There were difficulties in maintaining airtightness.
本発明は厳格な温度制御と必要せず、しかも透
明ガラスを金属環に強固に溶着できるレンズキヤ
ツプの製造方法を提供することを目的とする。 SUMMARY OF THE INVENTION An object of the present invention is to provide a method for manufacturing a lens cap that does not require strict temperature control and can firmly weld transparent glass to a metal ring.
本発明は要約すると、金属環をその天板部を下
側に向けて透孔の下方に空間を設けて支持し、前
記天板部の内面上に透明ガラス円板を載置し、こ
の透明ガラス円板の周縁部を治具で押圧した状態
で加熱することを特徴とするものである。 In summary, the present invention supports a metal ring with its top plate facing downward with a space provided below a through hole, a transparent glass disc is placed on the inner surface of the top plate, and the transparent This method is characterized in that the peripheral edge of the glass disk is heated while being pressed with a jig.
以下、本発明の一実施例を図面により説明す
る。 An embodiment of the present invention will be described below with reference to the drawings.
第３図に示すように、グラフアイト製の下型封
着治具１１の透孔１２に、予備酸化処理を施した
金属環１をその天板部３を下側にしてその下方に
空間を有するようにはめ込み、この金属環１の天
板部３の内面上に透明ガラス円板６０ａを載置
し、さらにこの透明ガラス円板６０ａの上に、周
縁に押圧部２１を有し、中央に空所２２を有し、
外方に段部２３を有する上型封着治具２０を載置
して加熱する。このとき、フランジ部５の上面と
上型封着治具２０の段部２３の下面との間〓寸法
ｇは、透明ガラス円板６０ａの厚さより小さく設
定しておく。すると、透明ガラス円板６０ａが溶
融し、かつ上型封着治具２０の押圧部２１により
押圧整形され、一部の溶融ガラスが筒状部２の内
面と押圧部２１の外面との〓間に流れ込んで、金
属環１の天板部３の内面全面および筒状部２の内
面の一部に溶着され、同時に溶融ガラスの表面張
力で両面が凸状になり、第４図に示すようなレン
ズ状の透明ガラス６０を備えたレンズキヤツプが
得られる。 As shown in FIG. 3, a pre-oxidized metal ring 1 is placed in a through hole 12 of a lower die sealing jig 11 made of graphite, with its top plate 3 facing downward, and a space is created below. A transparent glass disc 60a is placed on the inner surface of the top plate 3 of the metal ring 1, and a pressing part 21 is provided on the periphery of the transparent glass disc 60a, and a pressing part 21 is provided at the center of the transparent glass disc 60a. It has a void space 22,
An upper die sealing jig 20 having a stepped portion 23 on the outside is placed and heated. At this time, the dimension g between the upper surface of the flange portion 5 and the lower surface of the stepped portion 23 of the upper die sealing jig 20 is set to be smaller than the thickness of the transparent glass disc 60a. Then, the transparent glass disk 60a is melted and pressed and shaped by the pressing part 21 of the upper mold sealing jig 20, and a part of the molten glass is pushed between the inner surface of the cylindrical part 2 and the outer surface of the pressing part 21. The glass flows into the metal ring 1 and is welded to the entire inner surface of the top plate portion 3 and a part of the inner surface of the cylindrical portion 2, and at the same time, both surfaces become convex due to the surface tension of the molten glass, as shown in Fig. 4. A lens cap with a lenticular transparent glass 60 is obtained.
第４図に示すレンズキヤツプの特徴は、透明ガ
ラス６０が金属環１の天板部３の内面全面および
筒状部２の内面の一部に溶着された平板部６１を
有しており、天板部３の外面には溶着されていな
いことである。 The lens cap shown in FIG. 4 is characterized in that the transparent glass 60 has a flat plate part 61 welded to the entire inner surface of the top plate part 3 of the metal ring 1 and a part of the inner surface of the cylindrical part 2. It is not welded to the outer surface of the plate portion 3.
本発明は以上のように、金属環をその天板部を
下側に向けて透孔の下方に空間を設けて支持し、
前記天板部の内面上に透明ガラス円板を載置し、
この透明ガラス円板の周縁部を治具で押圧した状
態で加熱することによつて、従来の自由状態で表
面張力のみによつて透明ガラスを凸状に形成する
ものに比較して、加熱溶着時の温度制御範囲を大
きくとれ、透明ガラスに容易に所定の形状が得ら
れる。また、本発明によつて製造したレンズキヤ
ツプは、透明ガラスが金属環の天板部の内面全面
および筒状部の内面の一部にまで溶着されている
から、金属環と透明ガラスとの溶着面積が増大す
るのみならず、天板部内面と筒状部内面という互
いに直交する面で溶着されているので気密性が高
く、しかも金属環と透明ガラスとの溶着強度も大
きいので、レンズキヤツプをステムに溶接する際
等に、透明ガラスが金属環から剥離したり気密劣
化を生じるということがなくなる。 As described above, the present invention supports a metal ring with its top plate facing downward, with a space provided below the through hole,
A transparent glass disk is placed on the inner surface of the top plate portion,
By heating the peripheral edge of the transparent glass disk while pressing it with a jig, heat welding is possible, compared to the conventional method in which transparent glass is formed into a convex shape in a free state using only surface tension. The temperature can be controlled over a wide range, and a desired shape can be easily obtained on transparent glass. Further, in the lens cap manufactured according to the present invention, since the transparent glass is welded to the entire inner surface of the top plate portion of the metal ring and to a part of the inner surface of the cylindrical portion, the metal ring and the transparent glass are welded together. Not only does the area increase, but since the inner surface of the top plate part and the inner surface of the cylindrical part are welded at right angles to each other, the airtightness is high, and the welding strength between the metal ring and the transparent glass is also high, so the lens cap can be There is no possibility that the transparent glass will peel off from the metal ring or the airtightness will deteriorate when welding it to the stem.
第１図は従来のレンズキヤツプの縦断面図、第
２図は従来のレンズキヤツプの製造方法について
説明するための加熱溶着前の縦断面図、第３図は
本発明による製造方法について説明するための加
熱溶着前の縦断面図、第４図は本発明方法によつ
て製造したレンズキヤツプの縦断面図である。
１……金属環、２……筒状部、３……天板部、
４……透孔、１０……封着治具、１１……下型封
着治具、２０……上型封着治具、６０ａ……透明
ガラス円板、６０……透明ガラス、６１……平板
部。
Fig. 1 is a longitudinal sectional view of a conventional lens cap, Fig. 2 is a longitudinal sectional view before heat welding for explaining the conventional method of manufacturing a lens cap, and Fig. 3 is a longitudinal sectional view for explaining the manufacturing method of the present invention. FIG. 4 is a vertical cross-sectional view of a lens cap manufactured by the method of the present invention. 1... Metal ring, 2... Cylindrical part, 3... Top plate part,
4...Through hole, 10...Sealing jig, 11...Lower die sealing jig, 20...Upper die sealing jig, 60a...Transparent glass disk, 60...Transparent glass, 61... ...Flat plate part.
Claims (1)
する金属環の前記透孔に凸面状の透明ガラスを気
密に溶着してなるレンズキヤツプを製造する際
に、 前記金属環をその天板部を下側に向けて透孔の
下方に空間を設けて支持し、前記天板部の内面上
に透明ガラス円板を載置し、この透明ガラス円板
の周縁部を治具で押圧した状態で加熱することを
特徴とするレンズキヤツプの製造方法。[Scope of Claims] 1. A lens cap is manufactured by airtightly welding convex transparent glass to the through hole of a metal ring having a cylindrical portion, a top plate portion, and a through hole provided in the top plate portion. At this time, the metal ring is supported with its top plate facing downward with a space provided below the through hole, a transparent glass disk is placed on the inner surface of the top plate, and the transparent glass disk is placed on the inner surface of the top plate. A method for manufacturing a lens cap, characterized in that the peripheral edge of the plate is heated while being pressed with a jig.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12737783A JPS59218430A (en) | 1983-07-12 | 1983-07-12 | Production of lens cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12737783A JPS59218430A (en) | 1983-07-12 | 1983-07-12 | Production of lens cap |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59218430A JPS59218430A (en) | 1984-12-08 |
| JPH0331241B2 true JPH0331241B2 (en) | 1991-05-02 |
Family
ID=14958477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12737783A Granted JPS59218430A (en) | 1983-07-12 | 1983-07-12 | Production of lens cap |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59218430A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103353089B (en) * | 2013-02-25 | 2015-10-07 | 黄�俊 | The lampshade of Projecting Lamp and manufacture method thereof |
| CN108002716B (en) * | 2017-10-26 | 2020-07-28 | 潮州三环（集团）股份有限公司 | How to make a lens cap |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5081348A (en) * | 1973-11-19 | 1975-07-02 |
-
1983
- 1983-07-12 JP JP12737783A patent/JPS59218430A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59218430A (en) | 1984-12-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2878372B2 (en) | Optical device manufacturing method | |
| JPH0331241B2 (en) | ||
| JP5064142B2 (en) | Method for manufacturing piezoelectric device | |
| US4363555A (en) | Fluid-tight watch case with U-shaped bezel | |
| JPS5940312B2 (en) | Manufacturing method of lens cap for optical semiconductors | |
| US2992513A (en) | Manufacture of glass-to-metal seals | |
| US2206489A (en) | Electric discharge vessel | |
| US2504303A (en) | Metal to glass sealing method | |
| JP2007103673A (en) | Lid and manufacturing method thereof, and glass molded body manufacturing method | |
| JP2560129B2 (en) | Semiconductor laser device | |
| JP2000183442A (en) | Cap for optical element | |
| JPS6033624Y2 (en) | Combination of airtight terminal and container | |
| JPS5889846A (en) | cap with window glass | |
| JPS604390Y2 (en) | airtight terminal | |
| JPH1167092A (en) | Manufacture of fluorescnet display tube | |
| US3976956A (en) | Laser device and a method of fabrication | |
| JPS6360494B2 (en) | ||
| JPS6131060B2 (en) | ||
| JPS5941309B2 (en) | Lens cap manufacturing method | |
| JP2738299B2 (en) | Vacuum sealed structure of metal vacuum container | |
| JPH0537534Y2 (en) | ||
| JPS6236341Y2 (en) | ||
| JPH07221349A (en) | Airtight glass lens cap | |
| JPS6114192Y2 (en) | ||
| JPS5915127Y2 (en) | Manufacturing equipment for metal containers for crystal oscillators useful for secondary processing |