JPH0422903U - - Google Patents
Info
- Publication number
- JPH0422903U JPH0422903U JP6342790U JP6342790U JPH0422903U JP H0422903 U JPH0422903 U JP H0422903U JP 6342790 U JP6342790 U JP 6342790U JP 6342790 U JP6342790 U JP 6342790U JP H0422903 U JPH0422903 U JP H0422903U
- Authority
- JP
- Japan
- Prior art keywords
- lens
- shape
- reference point
- distance vision
- circle
- 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.)
- Granted
Links
- 230000000750 progressive effect Effects 0.000 claims description 4
- 208000001491 myopia Diseases 0.000 claims description 3
Landscapes
- Eyeglasses (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1990063427U JP2522980Y2 (ja) | 1990-06-15 | 1990-06-15 | 検眼レンズ |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1990063427U JP2522980Y2 (ja) | 1990-06-15 | 1990-06-15 | 検眼レンズ |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0422903U true JPH0422903U (en]) | 1992-02-25 |
JP2522980Y2 JP2522980Y2 (ja) | 1997-01-22 |
Family
ID=31593468
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1990063427U Expired - Lifetime JP2522980Y2 (ja) | 1990-06-15 | 1990-06-15 | 検眼レンズ |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2522980Y2 (en]) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0499901U (en]) * | 1991-01-30 | 1992-08-28 | ||
JPH04250604A (ja) * | 1991-01-25 | 1992-09-07 | Toshiba Corp | 変圧器鉄心 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60140316A (ja) * | 1983-12-28 | 1985-07-25 | Tokyo Kuroobaa Kk | 検眼用テストフレーム用テストレンズ |
-
1990
- 1990-06-15 JP JP1990063427U patent/JP2522980Y2/ja not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60140316A (ja) * | 1983-12-28 | 1985-07-25 | Tokyo Kuroobaa Kk | 検眼用テストフレーム用テストレンズ |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04250604A (ja) * | 1991-01-25 | 1992-09-07 | Toshiba Corp | 変圧器鉄心 |
JPH0499901U (en]) * | 1991-01-30 | 1992-08-28 |
Also Published As
Publication number | Publication date |
---|---|
JP2522980Y2 (ja) | 1997-01-22 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
EXPY | Cancellation because of completion of term |