GB1405428A - Method of producing an optical quality surface on a lens - Google Patents
Method of producing an optical quality surface on a lensInfo
- Publication number
- GB1405428A GB1405428A GB5221772A GB5221772A GB1405428A GB 1405428 A GB1405428 A GB 1405428A GB 5221772 A GB5221772 A GB 5221772A GB 5221772 A GB5221772 A GB 5221772A GB 1405428 A GB1405428 A GB 1405428A
- Authority
- GB
- United Kingdom
- Prior art keywords
- lens
- plasma torch
- nov
- nitrogen
- high frequency
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B23/00—Re-forming shaped glass
- C03B23/0086—Heating devices specially adapted for re-forming shaped glass articles in general, e.g. burners
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B29/00—Reheating glass products for softening or fusing their surfaces; Fire-polishing; Fusing of margins
- C03B29/02—Reheating glass products for softening or fusing their surfaces; Fire-polishing; Fusing of margins in a discontinuous way
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
- Surface Treatment Of Glass (AREA)
Abstract
1405428 Polishing lens surfaces AMERICAN OPTICAL CORP 13 Nov 1972 [17 Nov 1971] 52217/72 Heading C1M An optical quality surface on a lens is produced by preparing a lens having an unfinished surface, and heating the said surface with a high frequency plasma torch for a time sufficient to melt a thin, substantially uniform section of glass over the unfinished surface without inducing distortion in the body of the lens. The lens may be annealed while subsequently cooling. Preferably the lens is preheated, and conveyed past the plasma torch. Preferably the melted section is of depth 10-100 Á. The lens preferably is rotated during the heating which may be for, e.g. 5-15 seconds. Typically the plasma torch has a flame temperature of at least 5000‹ C., an emission wavelength at substantially 290 nm, and a gas velocity of approx. 30 feet per second. The gas, which may be air, argon, nitrogen or a nitrogen/oxygen mixture, is supplied to torch chamber 13 from supply 15 through valve 16 and tubing 17. High frequency generator 10 is connected between A.C. input 11 and induction coil 12.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US20159671A | 1971-11-17 | 1971-11-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1405428A true GB1405428A (en) | 1975-09-10 |
Family
ID=22746477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5221772A Expired GB1405428A (en) | 1971-11-17 | 1972-11-13 | Method of producing an optical quality surface on a lens |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JPS5514816B2 (en) |
| AU (1) | AU461984B2 (en) |
| CA (1) | CA995038A (en) |
| DE (1) | DE2243798A1 (en) |
| FR (1) | FR2160396A1 (en) |
| GB (1) | GB1405428A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4319784A1 (en) * | 1992-06-15 | 1993-12-16 | Siecor Corp | Polishing optical fibers |
| US5317661A (en) * | 1993-07-06 | 1994-05-31 | Siecor Corporation | Laser removal of altered index of refraction layer on glass fibers |
| CN103465114A (en) * | 2013-09-06 | 2013-12-25 | 西安工业大学 | Method for polishing fused quartz optical element and device used by method |
| CN107081640A (en) * | 2017-06-27 | 2017-08-22 | 中国工程物理研究院激光聚变研究中心 | Method for manufacturing optical element |
| CN117735824A (en) * | 2024-02-19 | 2024-03-22 | 南方科技大学 | Manufacturing method of micro lens, micro lens and manufacturing system thereof |
| CN117902819A (en) * | 2023-12-07 | 2024-04-19 | 宁波大学 | A method and device for thermal polishing of chalcogenide glass lens |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53134014A (en) * | 1977-04-28 | 1978-11-22 | Nippon Thompson Co Ltd | Production of glass roller used for roller bearing |
| JPS53141994A (en) * | 1977-05-17 | 1978-12-11 | Sumitomo Electric Ind Ltd | Method of grinding inner surface of glass tube |
| FR2551431B1 (en) * | 1983-09-06 | 1986-08-22 | Air Liquide | PROCESS FOR POLISHING THE SURFACE OF GLASS ARTICLES |
| CN107200464A (en) * | 2017-06-27 | 2017-09-26 | 中国工程物理研究院激光聚变研究中心 | Crackle fuser and its method |
-
1972
- 1972-09-04 DE DE19722243798 patent/DE2243798A1/en active Pending
- 1972-09-19 AU AU46834/72A patent/AU461984B2/en not_active Expired
- 1972-10-06 CA CA153,443A patent/CA995038A/en not_active Expired
- 1972-10-27 FR FR7238706A patent/FR2160396A1/fr not_active Withdrawn
- 1972-11-13 GB GB5221772A patent/GB1405428A/en not_active Expired
- 1972-11-15 JP JP11394672A patent/JPS5514816B2/ja not_active Expired
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4319784A1 (en) * | 1992-06-15 | 1993-12-16 | Siecor Corp | Polishing optical fibers |
| GB2267974A (en) * | 1992-06-15 | 1993-12-22 | Siecor Corp | Polishing glass optical waveguides |
| GB2267974B (en) * | 1992-06-15 | 1996-03-27 | Siecor Corp | Polishing light waveguides |
| DE4319784C2 (en) * | 1992-06-15 | 2002-10-02 | Siecor Corp | Polishing optical fibers |
| US5317661A (en) * | 1993-07-06 | 1994-05-31 | Siecor Corporation | Laser removal of altered index of refraction layer on glass fibers |
| CN103465114B (en) * | 2013-09-06 | 2015-08-26 | 西安工业大学 | A kind of method and device thereof carrying out polishing for fused quartz optical component |
| CN103465114A (en) * | 2013-09-06 | 2013-12-25 | 西安工业大学 | Method for polishing fused quartz optical element and device used by method |
| CN107081640A (en) * | 2017-06-27 | 2017-08-22 | 中国工程物理研究院激光聚变研究中心 | Method for manufacturing optical element |
| CN107081640B (en) * | 2017-06-27 | 2019-04-02 | 中国工程物理研究院激光聚变研究中心 | Method for manufacturing optical element |
| CN117902819A (en) * | 2023-12-07 | 2024-04-19 | 宁波大学 | A method and device for thermal polishing of chalcogenide glass lens |
| CN117902819B (en) * | 2023-12-07 | 2024-10-25 | 宁波大学 | A method and device for thermal polishing of chalcogenide glass lens |
| CN117735824A (en) * | 2024-02-19 | 2024-03-22 | 南方科技大学 | Manufacturing method of micro lens, micro lens and manufacturing system thereof |
| CN117735824B (en) * | 2024-02-19 | 2024-05-07 | 南方科技大学 | A method for manufacturing a microlens, a microlens and a manufacturing system thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| AU461984B2 (en) | 1975-06-12 |
| AU4683472A (en) | 1974-03-28 |
| FR2160396A1 (en) | 1973-06-29 |
| JPS4860118A (en) | 1973-08-23 |
| DE2243798A1 (en) | 1973-05-24 |
| CA995038A (en) | 1976-08-17 |
| JPS5514816B2 (en) | 1980-04-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |