JPH0255914U - - Google Patents
Info
- Publication number
- JPH0255914U JPH0255914U JP13474388U JP13474388U JPH0255914U JP H0255914 U JPH0255914 U JP H0255914U JP 13474388 U JP13474388 U JP 13474388U JP 13474388 U JP13474388 U JP 13474388U JP H0255914 U JPH0255914 U JP H0255914U
- Authority
- JP
- Japan
- Prior art keywords
- index
- visual acuity
- indicator
- acuity chart
- projection
- 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
- 230000004304 visual acuity Effects 0.000 claims description 11
- 230000003287 optical effect Effects 0.000 claims description 7
- 201000009310 astigmatism Diseases 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 1
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13474388U JPH0530404Y2 (cs) | 1988-10-15 | 1988-10-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13474388U JPH0530404Y2 (cs) | 1988-10-15 | 1988-10-15 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0255914U true JPH0255914U (cs) | 1990-04-23 |
| JPH0530404Y2 JPH0530404Y2 (cs) | 1993-08-04 |
Family
ID=31393769
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13474388U Expired - Lifetime JPH0530404Y2 (cs) | 1988-10-15 | 1988-10-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0530404Y2 (cs) |
-
1988
- 1988-10-15 JP JP13474388U patent/JPH0530404Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0530404Y2 (cs) | 1993-08-04 |
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