JPH029766Y2 - - Google Patents
Info
- Publication number
- JPH029766Y2 JPH029766Y2 JP4202785U JP4202785U JPH029766Y2 JP H029766 Y2 JPH029766 Y2 JP H029766Y2 JP 4202785 U JP4202785 U JP 4202785U JP 4202785 U JP4202785 U JP 4202785U JP H029766 Y2 JPH029766 Y2 JP H029766Y2
- Authority
- JP
- Japan
- Prior art keywords
- visual acuity
- circuit
- signal
- measurement
- time
- 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
- 230000004304 visual acuity Effects 0.000 claims description 103
- 238000005259 measurement Methods 0.000 claims description 57
- 238000001514 detection method Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 8
- 238000012360 testing method Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004438 eyesight Effects 0.000 description 1
Landscapes
- Eye Examination Apparatus (AREA)
- Electric Clocks (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4202785U JPH029766Y2 (en]) | 1985-03-22 | 1985-03-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4202785U JPH029766Y2 (en]) | 1985-03-22 | 1985-03-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61156904U JPS61156904U (en]) | 1986-09-29 |
| JPH029766Y2 true JPH029766Y2 (en]) | 1990-03-12 |
Family
ID=30552394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4202785U Expired JPH029766Y2 (en]) | 1985-03-22 | 1985-03-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH029766Y2 (en]) |
-
1985
- 1985-03-22 JP JP4202785U patent/JPH029766Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61156904U (en]) | 1986-09-29 |
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