JPH0327604Y2 - - Google Patents
Info
- Publication number
- JPH0327604Y2 JPH0327604Y2 JP8495688U JP8495688U JPH0327604Y2 JP H0327604 Y2 JPH0327604 Y2 JP H0327604Y2 JP 8495688 U JP8495688 U JP 8495688U JP 8495688 U JP8495688 U JP 8495688U JP H0327604 Y2 JPH0327604 Y2 JP H0327604Y2
- Authority
- JP
- Japan
- Prior art keywords
- optotype
- light
- eye examination
- liquid crystal
- light source
- 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
- 239000004973 liquid crystal related substance Substances 0.000 claims description 35
- 239000013307 optical fiber Substances 0.000 claims description 9
- 230000004907 flux Effects 0.000 claims description 7
- 230000002093 peripheral effect Effects 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 230000001678 irradiating effect Effects 0.000 claims description 2
- 238000012360 testing method Methods 0.000 description 7
- 230000004304 visual acuity Effects 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 3
- 230000000007 visual effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8495688U JPH0327604Y2 (enrdf_load_stackoverflow) | 1988-06-27 | 1988-06-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8495688U JPH0327604Y2 (enrdf_load_stackoverflow) | 1988-06-27 | 1988-06-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6417207U JPS6417207U (enrdf_load_stackoverflow) | 1989-01-27 |
| JPH0327604Y2 true JPH0327604Y2 (enrdf_load_stackoverflow) | 1991-06-14 |
Family
ID=31309637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8495688U Expired JPH0327604Y2 (enrdf_load_stackoverflow) | 1988-06-27 | 1988-06-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0327604Y2 (enrdf_load_stackoverflow) |
-
1988
- 1988-06-27 JP JP8495688U patent/JPH0327604Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6417207U (enrdf_load_stackoverflow) | 1989-01-27 |
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