JPS54135849A - Mold for forming plastic lens - Google Patents
Mold for forming plastic lensInfo
- Publication number
- JPS54135849A JPS54135849A JP4327778A JP4327778A JPS54135849A JP S54135849 A JPS54135849 A JP S54135849A JP 4327778 A JP4327778 A JP 4327778A JP 4327778 A JP4327778 A JP 4327778A JP S54135849 A JPS54135849 A JP S54135849A
- Authority
- JP
- Japan
- Prior art keywords
- master mold
- mold
- silver
- ammonia
- vessel
- 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.)
- Pending
Links
Abstract
PURPOSE: A thin metal layer is formed on the surface of plastic molds which are made using the master mold by deposition, whereby mass production is possible even in lenses with complicated shapes in low costs and the release of products is ready on molding, thus, giving products with good surface conditions.
CONSTITUTION: The end of stainless or glass rods are cut or grounded to form the same shape as the prescribed lens which is used as the master mold (5). Then the master mold is placed in vessel 6 at the top and a synthetic resin is poured therein. After cured, the resin is taken out of vessel 6 and the master mold 5 is removed, thus plastic 3 being given. Meanwhile silver oxalate is dissolved in water at a ratio of 20 g. of the salt in 1l of water and an adequate amount of ammonia to form a solution. Mold 3 is immersed in the solution and ammonia is added dropwise to deposite silver on the surface by silver-mirror reaction, whereby metal thin layer 4 is formed.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4327778A JPS54135849A (en) | 1978-04-14 | 1978-04-14 | Mold for forming plastic lens |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4327778A JPS54135849A (en) | 1978-04-14 | 1978-04-14 | Mold for forming plastic lens |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54135849A true JPS54135849A (en) | 1979-10-22 |
Family
ID=12659312
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4327778A Pending JPS54135849A (en) | 1978-04-14 | 1978-04-14 | Mold for forming plastic lens |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54135849A (en) |
-
1978
- 1978-04-14 JP JP4327778A patent/JPS54135849A/en active Pending
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