FR2690434B1 - Method and machine for forming aspherical glass optical lenses, one surface of which is convex and the other concave. - Google Patents
Method and machine for forming aspherical glass optical lenses, one surface of which is convex and the other concave.Info
- Publication number
- FR2690434B1 FR2690434B1 FR9204993A FR9204993A FR2690434B1 FR 2690434 B1 FR2690434 B1 FR 2690434B1 FR 9204993 A FR9204993 A FR 9204993A FR 9204993 A FR9204993 A FR 9204993A FR 2690434 B1 FR2690434 B1 FR 2690434B1
- Authority
- FR
- France
- Prior art keywords
- concave
- convex
- machine
- optical lenses
- glass optical
- 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 - Fee Related
Links
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
- C03B2215/40—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
- C03B2215/63—Pressing between porous dies supplied with gas, i.e. contactless pressing
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9204993A FR2690434B1 (en) | 1992-04-23 | 1992-04-23 | Method and machine for forming aspherical glass optical lenses, one surface of which is convex and the other concave. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9204993A FR2690434B1 (en) | 1992-04-23 | 1992-04-23 | Method and machine for forming aspherical glass optical lenses, one surface of which is convex and the other concave. |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2690434A1 FR2690434A1 (en) | 1993-10-29 |
FR2690434B1 true FR2690434B1 (en) | 1994-11-18 |
Family
ID=9429179
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR9204993A Expired - Fee Related FR2690434B1 (en) | 1992-04-23 | 1992-04-23 | Method and machine for forming aspherical glass optical lenses, one surface of which is convex and the other concave. |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2690434B1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19510195C2 (en) * | 1995-03-21 | 1997-02-13 | Deutsche Spezialglas Ag | Process for producing bright-pressed glass bodies for optical equipment and device for carrying out the process |
FR2739095B1 (en) * | 1995-09-25 | 1997-11-14 | Saint Gobain Vitrage | OPTICAL LENSES AND MANUFACTURING METHODS |
CN1244508C (en) * | 1998-12-09 | 2006-03-08 | Hoya株式会社 | Method and device for mould pressing glass products |
WO2001012565A1 (en) | 1999-08-13 | 2001-02-22 | Koninklijke Philips Electronics N.V. | Method of manufacturing a cathode ray tube |
JP2006265087A (en) * | 2004-12-13 | 2006-10-05 | Ohara Inc | Preform for optical element |
KR102618613B1 (en) * | 2017-10-13 | 2023-12-27 | 코닝 인코포레이티드 | Method and apparatus for pressing glass or glass-ceramic preforms to form forming plates, method for manufacturing liquid lenses, and liquid lenses |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4822977B1 (en) * | 1968-04-18 | 1973-07-10 | ||
GB1429343A (en) * | 1973-03-05 | 1976-03-24 | Pilkington Brothers Ltd | Shaping of glass to a desired form |
CA1044930A (en) * | 1974-12-16 | 1978-12-26 | Emil W. Deeg | Multifocal lenses and method of making same |
-
1992
- 1992-04-23 FR FR9204993A patent/FR2690434B1/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
FR2690434A1 (en) | 1993-10-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |