HUP9602502A2 - Procedure for making contact lenses from hydrofil material - Google Patents
Procedure for making contact lenses from hydrofil materialInfo
- Publication number
- HUP9602502A2 HUP9602502A2 HU9602502A HUP9602502A HUP9602502A2 HU P9602502 A2 HUP9602502 A2 HU P9602502A2 HU 9602502 A HU9602502 A HU 9602502A HU P9602502 A HUP9602502 A HU P9602502A HU P9602502 A2 HUP9602502 A2 HU P9602502A2
- Authority
- HU
- Hungary
- Prior art keywords
- mould
- moulding
- lens
- reactive monomer
- monomer mixt
- Prior art date
Links
- 239000000178 monomer Substances 0.000 abstract 4
- 238000000465 moulding Methods 0.000 abstract 3
- 230000003287 optical effect Effects 0.000 abstract 2
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 230000007547 defect Effects 0.000 abstract 1
- 239000000017 hydrogel Substances 0.000 abstract 1
- 230000013011 mating Effects 0.000 abstract 1
- 230000001052 transient effect Effects 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- 238000009736 wetting Methods 0.000 abstract 1
- 239000000080 wetting agent Substances 0.000 abstract 1
Landscapes
- Eyeglasses (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
The moulding of hydrophilic hydrogel contact lenses from a reactive monomer mixt comprises interposing cooperating concave and convex mould faces about a cavity to form contact lens blanks. At least one of the mould faces is treated with a transient wetting agent to facilitate wetting of the face with the monomer mixt and to provide lens blanks with reduced lens hole and puddle defects. Also claimed is the moulding of contact lens blanks including filling a concave lens mould with a reactive monomer mixt, and juxtaposing with it in mating moulding relation a convex lens mould. At least one of the optical surfaces of the moulds is pretreated with water vapour to condense an even coating of moisture on it to enhance wettability of the optical surface to the reactive monomer mixt.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
HU9602502A HUP9602502A3 (en) | 1996-09-12 | 1996-09-12 | Procedure for making contact lenses from hydrofil material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
HU9602502A HUP9602502A3 (en) | 1996-09-12 | 1996-09-12 | Procedure for making contact lenses from hydrofil material |
Publications (3)
Publication Number | Publication Date |
---|---|
HU9602502D0 HU9602502D0 (en) | 1996-11-28 |
HUP9602502A2 true HUP9602502A2 (en) | 1997-03-28 |
HUP9602502A3 HUP9602502A3 (en) | 1998-04-28 |
Family
ID=89994267
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
HU9602502A HUP9602502A3 (en) | 1996-09-12 | 1996-09-12 | Procedure for making contact lenses from hydrofil material |
Country Status (1)
Country | Link |
---|---|
HU (1) | HUP9602502A3 (en) |
-
1996
- 1996-09-12 HU HU9602502A patent/HUP9602502A3/en unknown
Also Published As
Publication number | Publication date |
---|---|
HU9602502D0 (en) | 1996-11-28 |
HUP9602502A3 (en) | 1998-04-28 |
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