JPH0445454B2 - - Google Patents
Info
- Publication number
- JPH0445454B2 JPH0445454B2 JP30012287A JP30012287A JPH0445454B2 JP H0445454 B2 JPH0445454 B2 JP H0445454B2 JP 30012287 A JP30012287 A JP 30012287A JP 30012287 A JP30012287 A JP 30012287A JP H0445454 B2 JPH0445454 B2 JP H0445454B2
- Authority
- JP
- Japan
- Prior art keywords
- glass
- mold
- cutting
- molding
- fluid
- 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
Links
- 239000011521 glass Substances 0.000 claims description 110
- 238000005520 cutting process Methods 0.000 claims description 85
- 239000012530 fluid Substances 0.000 claims description 66
- 238000000465 moulding Methods 0.000 claims description 64
- 238000000034 method Methods 0.000 claims description 33
- 230000003287 optical effect Effects 0.000 claims description 23
- 238000003825 pressing Methods 0.000 claims description 22
- 238000004519 manufacturing process Methods 0.000 claims description 11
- 238000002844 melting Methods 0.000 claims description 8
- 230000008018 melting Effects 0.000 claims description 8
- 230000009477 glass transition Effects 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims 1
- 239000000047 product Substances 0.000 description 45
- 239000006060 molten glass Substances 0.000 description 11
- 230000002093 peripheral effect Effects 0.000 description 7
- 230000007547 defect Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000012467 final product Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000005498 polishing Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000005304 optical glass Substances 0.000 description 2
- 238000012805 post-processing Methods 0.000 description 2
- 230000002123 temporal effect Effects 0.000 description 2
- 241000270299 Boa Species 0.000 description 1
- 206010049040 Weight fluctuation Diseases 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 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
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 239000011148 porous material 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
- 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)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30012287A JPH01145337A (ja) | 1987-11-30 | 1987-11-30 | 光学素子の製造方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30012287A JPH01145337A (ja) | 1987-11-30 | 1987-11-30 | 光学素子の製造方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01145337A JPH01145337A (ja) | 1989-06-07 |
| JPH0445454B2 true JPH0445454B2 (enrdf_load_stackoverflow) | 1992-07-24 |
Family
ID=17880988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30012287A Granted JPH01145337A (ja) | 1987-11-30 | 1987-11-30 | 光学素子の製造方法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01145337A (enrdf_load_stackoverflow) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01153538A (ja) * | 1987-12-08 | 1989-06-15 | Canon Inc | 光学素子の製造方法 |
| 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 |
-
1987
- 1987-11-30 JP JP30012287A patent/JPH01145337A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01145337A (ja) | 1989-06-07 |
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