JPH0234658Y2 - - Google Patents
Info
- Publication number
- JPH0234658Y2 JPH0234658Y2 JP1138287U JP1138287U JPH0234658Y2 JP H0234658 Y2 JPH0234658 Y2 JP H0234658Y2 JP 1138287 U JP1138287 U JP 1138287U JP 1138287 U JP1138287 U JP 1138287U JP H0234658 Y2 JPH0234658 Y2 JP H0234658Y2
- Authority
- JP
- Japan
- Prior art keywords
- lens
- distance
- center
- vision
- frame
- 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
- 230000000750 progressive effect Effects 0.000 claims description 16
- 230000004438 eyesight Effects 0.000 claims description 12
- 208000001491 myopia Diseases 0.000 claims description 12
- 230000000007 visual effect Effects 0.000 claims description 5
- 239000004744 fabric Substances 0.000 description 13
- 239000011521 glass Substances 0.000 description 8
- 210000001747 pupil Anatomy 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 4
- 239000002985 plastic film Substances 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 230000004304 visual acuity Effects 0.000 description 2
- 206010047571 Visual impairment Diseases 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000036040 emmetropia Effects 0.000 description 1
- 229920002457 flexible plastic Polymers 0.000 description 1
- 238000009432 framing Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 201000010041 presbyopia Diseases 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 208000029257 vision disease Diseases 0.000 description 1
- 230000004393 visual impairment Effects 0.000 description 1
Landscapes
- Eyeglasses (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1138287U JPH0234658Y2 (enrdf_load_stackoverflow) | 1987-01-30 | 1987-01-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1138287U JPH0234658Y2 (enrdf_load_stackoverflow) | 1987-01-30 | 1987-01-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63120225U JPS63120225U (enrdf_load_stackoverflow) | 1988-08-03 |
| JPH0234658Y2 true JPH0234658Y2 (enrdf_load_stackoverflow) | 1990-09-18 |
Family
ID=30798548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1138287U Expired JPH0234658Y2 (enrdf_load_stackoverflow) | 1987-01-30 | 1987-01-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0234658Y2 (enrdf_load_stackoverflow) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001161645A (ja) * | 1999-12-13 | 2001-06-19 | Hoya Corp | 瞳孔位置測定具 |
-
1987
- 1987-01-30 JP JP1138287U patent/JPH0234658Y2/ja not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001161645A (ja) * | 1999-12-13 | 2001-06-19 | Hoya Corp | 瞳孔位置測定具 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63120225U (enrdf_load_stackoverflow) | 1988-08-03 |
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