JPH0471853B2 - - Google Patents

Info

Publication number: JPH0471853B2
Authority: JP; Japan
Prior art keywords: glass; mold; cutting; molding; molded
Prior art date: 1987-11-18
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

Application number

JP29140987A

Other languages

English (en)

Japanese (ja)

Other versions

JPH01133948A (ja

Inventor

Isamu Shigyo

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Canon Inc

Original Assignee

Canon Inc

Priority date (The priority date 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 date listed.)

1987-11-18

Filing date

1987-11-18

Publication date

1992-11-16

1987-11-18 Application filed by Canon Inc filed Critical Canon Inc

1987-11-18 Priority to JP29140987A priority Critical patent/JPH01133948A/ja

1989-05-26 Publication of JPH01133948A publication Critical patent/JPH01133948A/ja

1992-11-16 Publication of JPH0471853B2 publication Critical patent/JPH0471853B2/ja

Status Granted legal-status Critical Current

Links

239000011521 glass Substances 0.000 claims description 94
238000000465 moulding Methods 0.000 claims description 60
239000012530 fluid Substances 0.000 claims description 45
238000003825 pressing Methods 0.000 claims description 26
230000003287 optical effect Effects 0.000 claims description 19
238000004519 manufacturing process Methods 0.000 claims description 7
230000009477 glass transition Effects 0.000 claims description 4
238000005520 cutting process Methods 0.000 description 78
239000000047 product Substances 0.000 description 45
238000000034 method Methods 0.000 description 29
239000006060 molten glass Substances 0.000 description 17
239000000463 material Substances 0.000 description 7
238000002844 melting Methods 0.000 description 6
230000008018 melting Effects 0.000 description 6
230000007547 defect Effects 0.000 description 5
238000010438 heat treatment Methods 0.000 description 5
230000002093 peripheral effect Effects 0.000 description 4
238000005498 polishing Methods 0.000 description 4
239000012467 final product Substances 0.000 description 3
239000005304 optical glass Substances 0.000 description 3
230000001590 oxidative effect Effects 0.000 description 3
XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical group [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
230000000694 effects Effects 0.000 description 2
230000005484 gravity Effects 0.000 description 2
238000012805 post-processing Methods 0.000 description 2
238000003303 reheating Methods 0.000 description 2
230000002123 temporal effect Effects 0.000 description 2
UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 description 2
206010049040 Weight fluctuation Diseases 0.000 description 1
229910052786 argon Inorganic materials 0.000 description 1
230000015572 biosynthetic process Effects 0.000 description 1
239000004927 clay Substances 0.000 description 1
230000007423 decrease Effects 0.000 description 1
230000002542 deteriorative effect Effects 0.000 description 1
238000010586 diagram Methods 0.000 description 1
238000007599 discharging Methods 0.000 description 1
239000000428 dust Substances 0.000 description 1
238000005516 engineering process Methods 0.000 description 1
239000007789 gas Substances 0.000 description 1
239000007788 liquid Substances 0.000 description 1
230000005499 meniscus Effects 0.000 description 1
239000006082 mold release agent Substances 0.000 description 1
239000012778 molding material Substances 0.000 description 1
239000008188 pellet Substances 0.000 description 1
230000010349 pulsation Effects 0.000 description 1
238000004080 punching Methods 0.000 description 1
230000000087 stabilizing effect Effects 0.000 description 1

Classifications

- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B7/00—Distributors for the molten glass; Means for taking-off charges of molten glass; Producing the gob, e.g. controlling the gob shape, weight or delivery tact
- C03B7/10—Cutting-off or severing the glass flow with the aid of knives or scissors or non-contacting cutting means, e.g. a gas jet; Construction of the blades used
- 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
- C03B11/00—Pressing molten glass or performed glass reheated to equivalent low viscosity without blowing
- C03B11/16—Gearing or controlling mechanisms specially adapted for glass presses
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B21/00—Severing glass sheets, tubes or rods while still plastic
- C03B21/02—Severing glass sheets, tubes or rods while still plastic by cutting
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2215/00—Press-moulding glass
- C03B2215/40—Product characteristics
- C03B2215/46—Lenses, e.g. bi-convex
- C03B2215/48—Convex-concave
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2215/00—Press-moulding glass
- C03B2215/70—Horizontal or inclined press axis
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2215/00—Press-moulding glass
- C03B2215/76—Pressing whereby some glass overflows unrestrained beyond the press mould in a direction perpendicular to the press axis
- C03B2215/77—Pressing whereby some glass overflows unrestrained beyond the press mould in a direction perpendicular to the press axis with means to trim off excess material

Landscapes

Chemical & Material Sciences (AREA)
Engineering & Computer Science (AREA)
Materials Engineering (AREA)
Organic Chemistry (AREA)
Manufacturing & Machinery (AREA)
Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
Container, Conveyance, Adherence, Positioning, Of Wafer (AREA)
Manipulator (AREA)

JP29140987A 1987-11-18 1987-11-18 光学素子の製造方法 Granted JPH01133948A (ja)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
JP29140987A JPH01133948A (ja)	1987-11-18	1987-11-18	光学素子の製造方法

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
JP29140987A JPH01133948A (ja)	1987-11-18	1987-11-18	光学素子の製造方法

Publications (2)

Publication Number	Publication Date
JPH01133948A JPH01133948A (ja)	1989-05-26
JPH0471853B2 true JPH0471853B2 (fr)	1992-11-16

Family

ID=17768519

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
JP29140987A Granted JPH01133948A (ja)	1987-11-18	1987-11-18	光学素子の製造方法

Country Status (1)

Country	Link
JP (1)	JPH01133948A (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JP2579016B2 (ja) *	1990-01-31	1997-02-05	キヤノン株式会社	ガラス光学部品の製造方法
JPH03228836A (ja) *	1990-01-31	1991-10-09	Canon Inc	ガラス光学部品の製造方法
US5275637A (en) *	1990-01-31	1994-01-04	Canon Kabushiki Kaisha	Method of manufacturing a glass optical part
US5322541A (en) *	1991-03-28	1994-06-21	Matsushita Electric Industrial Co., Ltd.	Method of producing glass blank
MY158938A (en)	2009-12-29	2016-11-30	Hoya Corp	Manufacturing method of glass substrate for magnetic disk
MY169095A (en) *	2009-12-29	2019-02-18	Hoya Corp	Manufacturing method of glass substrate for magnetic disk and sheet glass material for magnetic disk
JP5431574B2 (ja)	2010-03-31	2014-03-05	Ｈｏｙａ株式会社	ガラスブランク及び磁気ディスク用ガラス基板の製造方法
JP2012160252A (ja)	2011-01-31	2012-08-23	Hoya Corp	磁気ディスク用ガラス基板の製造方法
JP5905765B2 (ja) *	2011-03-31	2016-04-20	Hoya株式会社	磁気ディスク用板状ガラス素材の製造方法、磁気ディスク用ガラス基板の製造方法
WO2012144237A1 (fr) *	2011-04-21	2012-10-26	Hoya株式会社	Procédé pour fabriquer une ébauche de verre pour disque magnétique, procédé pour fabriquer un substrat en verre pour disque magnétique, ébauche de verre pour disque magnétique, substrat en verre pour disque magnétique et disque magnétique
US9409809B2 (en) *	2011-04-27	2016-08-09	Hoya Corporation	Method for manufacturing glass blank for magnetic disk, method for manufacturing glass substrate for magnetic disk, glass blank for magnetic disk
JP6138042B2 (ja) *	2011-05-23	2017-05-31	Hoya株式会社	磁気ディスク用ガラス基板の製造方法

1987
- 1987-11-18 JP JP29140987A patent/JPH01133948A/ja active Granted

Also Published As

Publication number	Publication date
JPH01133948A (ja)	1989-05-26

Publication	Publication Date	Title
JPH0471853B2 (fr)	1992-11-16
JP6739131B2 (ja)	2020-08-12	ガラス製光学部品成形用金型並びにその金型を用いたガラス製光学部品の製造方法
JPH0513096B2 (fr)	1993-02-19
JPH0419172B2 (fr)	1992-03-30
JP4368368B2 (ja)	2009-11-18	ガラス塊の製造方法、その製造装置および光学素子の製造方法
JPH0445454B2 (fr)	1992-07-24
JP4289716B2 (ja)	2009-07-01	ガラス素子の成形方法
JP3630829B2 (ja)	2005-03-23	光学素子成形用素材の製造方法
JPH0472777B2 (fr)	1992-11-19
JPH0445459B2 (fr)	1992-07-24
JPH01153538A (ja)	1989-06-15	光学素子の製造方法
JPH01153540A (ja)	1989-06-15	光学素子の製造方法
JPH01138144A (ja)	1989-05-31	光学素子の製造方法
JPS63248727A (ja)	1988-10-17	ガラス成形品の製造方法および製造装置
JPH0723227B2 (ja)	1995-03-15	光学素子の成形装置
JP2501585B2 (ja)	1996-05-29	光学素子の成形方法
JPH01148715A (ja)	1989-06-12	光学素子の成形用型
JPH01212241A (ja)	1989-08-25	光学素子の成形方法
JP2662300B2 (ja)	1997-10-08	ガラス成形品の製造方法および装置
JPH0629147B2 (ja)	1994-04-20	光学素子の成形方法
JP2651260B2 (ja)	1997-09-10	ガラス光学部品の製造方法
JP2504802B2 (ja)	1996-06-05	光学成形体のプレス成形方法及びその装置
JP4666679B2 (ja)	2011-04-06	モールドプレス成形装置、及び成形体の製造方法
JP2808560B2 (ja)	1998-10-08	溶融ガラスの流出方法および装置
JPH10158019A (ja)	1998-06-16	光学素子の成形方法及び光学素子及び光学素子成形用素材の製造方法及び精密素子の成形方法及び精密素子