JPS5695216A - Dimming spectacle lens - Google Patents
Dimming spectacle lensInfo
- Publication number
- JPS5695216A JPS5695216A JP17180579A JP17180579A JPS5695216A JP S5695216 A JPS5695216 A JP S5695216A JP 17180579 A JP17180579 A JP 17180579A JP 17180579 A JP17180579 A JP 17180579A JP S5695216 A JPS5695216 A JP S5695216A
- Authority
- JP
- Japan
- Prior art keywords
- water retaining
- layer
- dimming
- transparent resin
- photochromic
- 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
Landscapes
- Optical Filters (AREA)
- Eyeglasses (AREA)
Abstract
PURPOSE: To obtain abrasion resistant dimming spectacle lenses which respond rapidly to light, are stable over a long term and do not cause disappearance of a photochromic substance due to volatilization by forming the photochromic substance on the surface of each spectacle lens in contact with a water retaining transparent resin.
CONSTITUTION: An antistatic liq. prepared by mixing methylolmelamine, polyethylene glycol and a plasticizer is applied to the surface of lens 1 of CR-39 (acrylic diglycol carbonate polymer) and baked to form water retaining transparent resin layer 2. SrTiO3 is then vapor deposited using compacted tablets of SrTiO3 contg. trace amounts of Fe3+ and Mo5+ added to form photochromic layer 3, and protective water retaining resin film 4 is formed on layer 3 using the above-mentioned water retaining transparent resin. Thus, dimming spectacle lenses are obtd. Photochromic layer 3 may contain spiropyran or metal dithisonate, and on water retaining layer 2 SiO2.nH2O may be formed by vapor deposition.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17180579A JPS5695216A (en) | 1979-12-28 | 1979-12-28 | Dimming spectacle lens |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17180579A JPS5695216A (en) | 1979-12-28 | 1979-12-28 | Dimming spectacle lens |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5695216A true JPS5695216A (en) | 1981-08-01 |
Family
ID=15930040
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17180579A Pending JPS5695216A (en) | 1979-12-28 | 1979-12-28 | Dimming spectacle lens |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5695216A (en) |
-
1979
- 1979-12-28 JP JP17180579A patent/JPS5695216A/en active Pending
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