JPH0120723B2 - - Google Patents
Info
- Publication number
- JPH0120723B2 JPH0120723B2 JP56018194A JP1819481A JPH0120723B2 JP H0120723 B2 JPH0120723 B2 JP H0120723B2 JP 56018194 A JP56018194 A JP 56018194A JP 1819481 A JP1819481 A JP 1819481A JP H0120723 B2 JPH0120723 B2 JP H0120723B2
- Authority
- JP
- Japan
- Prior art keywords
- lens
- corridor
- function
- distance
- section
- 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
- 230000002093 peripheral effect Effects 0.000 claims description 27
- 230000000750 progressive effect Effects 0.000 claims description 17
- 230000007423 decrease Effects 0.000 claims description 3
- 210000000695 crystalline len Anatomy 0.000 description 131
- 210000001508 eye Anatomy 0.000 description 15
- 238000013461 design Methods 0.000 description 12
- 230000004075 alteration Effects 0.000 description 11
- 201000009310 astigmatism Diseases 0.000 description 10
- 230000004438 eyesight Effects 0.000 description 6
- 239000011521 glass Substances 0.000 description 6
- 230000008859 change Effects 0.000 description 5
- 230000003287 optical effect Effects 0.000 description 5
- 230000002123 temporal effect Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 3
- 201000010041 presbyopia Diseases 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 238000012937 correction Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 239000011819 refractory material Substances 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000010420 art technique Methods 0.000 description 1
- 210000005252 bulbus oculi Anatomy 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000013178 mathematical model Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 208000001491 myopia Diseases 0.000 description 1
- 230000005043 peripheral vision Effects 0.000 description 1
- 239000003870 refractory metal Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
Landscapes
- Eyeglasses (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US12177480A | 1980-02-14 | 1980-02-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56128916A JPS56128916A (en) | 1981-10-08 |
| JPH0120723B2 true JPH0120723B2 (de) | 1989-04-18 |
Family
ID=22398705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1819481A Granted JPS56128916A (en) | 1980-02-14 | 1981-02-12 | Lens for glasses having sequentially varying focus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56128916A (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2270578A1 (de) * | 2009-06-30 | 2011-01-05 | Essilor International (Compagnie Générale D'Optique) | Verfahren und Vorrichtung zum Entwerfen einer optischen Linse |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5046348A (de) * | 1973-08-16 | 1975-04-25 | ||
| JPS5511285A (en) * | 1978-05-12 | 1980-01-26 | Essilor Int | Finishing lens refractive surface |
-
1981
- 1981-02-12 JP JP1819481A patent/JPS56128916A/ja active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5046348A (de) * | 1973-08-16 | 1975-04-25 | ||
| JPS5511285A (en) * | 1978-05-12 | 1980-01-26 | Essilor Int | Finishing lens refractive surface |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS56128916A (en) | 1981-10-08 |
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