JPS6415702A - Plastic lens with high refractive index - Google Patents
Plastic lens with high refractive indexInfo
- Publication number
- JPS6415702A JPS6415702A JP17123687A JP17123687A JPS6415702A JP S6415702 A JPS6415702 A JP S6415702A JP 17123687 A JP17123687 A JP 17123687A JP 17123687 A JP17123687 A JP 17123687A JP S6415702 A JPS6415702 A JP S6415702A
- Authority
- JP
- Japan
- Prior art keywords
- lens
- titled
- refractive index
- high refractive
- titled lens
- 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
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
PURPOSE:To obtain the titled lens with less yellow stain, especially at the time of polymerizing, by composing the titled lens of a copolymer contg. a diallylphthalate, a diethylene glycol bisallycarbonate and a glycidylmethacrylate with a specified weight ratio. CONSTITUTION:A mixture composed of 90-20pts.wt. of diallylphthalate or diallyisophthalate, 5-40pts.wt. of diethylene glycol bisallycarbonate and 5-40pts. wt. of glycidyl methacrylate and a polymerization initiator is filled into a casting mold for the lens, and then copolymerized by heating, etc., followed by curing the molding to form the titled lens. Thus, the titled lens with good formability, transparency, dye-affinity and physico-chemical property, is obtd. and the titled lens with the less yellow stain at the time of polymerizing, and composed of the high refractive index is obtd.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17123687A JPS6415702A (en) | 1987-07-10 | 1987-07-10 | Plastic lens with high refractive index |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17123687A JPS6415702A (en) | 1987-07-10 | 1987-07-10 | Plastic lens with high refractive index |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6415702A true JPS6415702A (en) | 1989-01-19 |
Family
ID=15919568
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17123687A Pending JPS6415702A (en) | 1987-07-10 | 1987-07-10 | Plastic lens with high refractive index |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6415702A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2428295A1 (en) | 2006-08-04 | 2012-03-14 | Citizen Holdings Co., Ltd. | Tool post |
-
1987
- 1987-07-10 JP JP17123687A patent/JPS6415702A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2428295A1 (en) | 2006-08-04 | 2012-03-14 | Citizen Holdings Co., Ltd. | Tool post |
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