JPH032242Y2 - - Google Patents
Info
- Publication number
- JPH032242Y2 JPH032242Y2 JP1985117730U JP11773085U JPH032242Y2 JP H032242 Y2 JPH032242 Y2 JP H032242Y2 JP 1985117730 U JP1985117730 U JP 1985117730U JP 11773085 U JP11773085 U JP 11773085U JP H032242 Y2 JPH032242 Y2 JP H032242Y2
- Authority
- JP
- Japan
- Prior art keywords
- optotype
- visual acuity
- test
- landolt
- answer
- 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
- 238000012360 testing method Methods 0.000 claims description 85
- 230000004304 visual acuity Effects 0.000 claims description 67
- 239000004973 liquid crystal related substance Substances 0.000 claims description 16
- 239000011521 glass Substances 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims 1
- 238000005259 measurement Methods 0.000 description 28
- 238000000034 method Methods 0.000 description 23
- 230000003287 optical effect Effects 0.000 description 22
- 230000008569 process Effects 0.000 description 21
- 230000000007 visual effect Effects 0.000 description 17
- 238000007689 inspection Methods 0.000 description 13
- 201000009310 astigmatism Diseases 0.000 description 12
- 230000004438 eyesight Effects 0.000 description 12
- 238000012937 correction Methods 0.000 description 8
- 238000012545 processing Methods 0.000 description 7
- 238000012216 screening Methods 0.000 description 7
- 229910003460 diamond Inorganic materials 0.000 description 6
- 239000010432 diamond Substances 0.000 description 6
- 238000003860 storage Methods 0.000 description 6
- 230000004305 hyperopia Effects 0.000 description 5
- 201000006318 hyperopia Diseases 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000004044 response Effects 0.000 description 4
- 206010020675 Hypermetropia Diseases 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000004371 high visual acuity Effects 0.000 description 3
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 3
- 238000007639 printing Methods 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 241001354471 Pseudobahia Species 0.000 description 1
- 206010047531 Visual acuity reduced Diseases 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 210000001061 forehead Anatomy 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000007562 laser obscuration time method Methods 0.000 description 1
- 230000004315 low visual acuity Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 208000001491 myopia Diseases 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985117730U JPH032242Y2 (fr) | 1985-07-31 | 1985-07-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985117730U JPH032242Y2 (fr) | 1985-07-31 | 1985-07-31 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6227601U JPS6227601U (fr) | 1987-02-19 |
| JPH032242Y2 true JPH032242Y2 (fr) | 1991-01-22 |
Family
ID=31003520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985117730U Expired JPH032242Y2 (fr) | 1985-07-31 | 1985-07-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH032242Y2 (fr) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0665510U (ja) * | 1993-02-24 | 1994-09-16 | 清水建設株式会社 | Ｐｃ外壁版の自重受けファスナー |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS565502B2 (fr) * | 1973-03-26 | 1981-02-05 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS565502U (fr) * | 1979-06-20 | 1981-01-19 | ||
| JPS60109601U (ja) * | 1983-12-28 | 1985-07-25 | カシオ計算機株式会社 | 視力検査機能付小型電子機器 |
-
1985
- 1985-07-31 JP JP1985117730U patent/JPH032242Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS565502B2 (fr) * | 1973-03-26 | 1981-02-05 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6227601U (fr) | 1987-02-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100679147B1 (ko) | 검안장치 및 검안차트 | |
| US20050264760A1 (en) | Optometry apparatus | |
| US10194795B2 (en) | Apparatus and method for screening for defects in the sight and for measuring the visual acuity of a user | |
| US5309185A (en) | Apparatus and method for objective quantitative assessment of human ocular coordination | |
| JP2003093344A (ja) | 検眼装置 | |
| JPH0690902A (ja) | 自覚眼屈折計 | |
| JPH032242Y2 (fr) | ||
| JP3580870B2 (ja) | 視力検査装置 | |
| JPH0538491Y2 (fr) | ||
| JPH0310724Y2 (fr) | ||
| JPH0556129B2 (fr) | ||
| JPH0310725Y2 (fr) | ||
| JPH032241Y2 (fr) | ||
| JPH0310726Y2 (fr) | ||
| JPH0556130B2 (fr) | ||
| JPH0663013A (ja) | 眼科装置 | |
| JPH0556131B2 (fr) | ||
| JPS6227918A (ja) | 自動視力検査方法及びそのための自動視力計 | |
| US2485272A (en) | Optical eye testing apparatus | |
| JPH07327928A (ja) | 視力計 | |
| JPH08289873A (ja) | 検眼装置 | |
| JP3699849B2 (ja) | 視力計 | |
| JP2818150B2 (ja) | 検眼装置 | |
| JPH01158933A (ja) | 瞳孔間距離計 | |
| JP3763986B2 (ja) | 視力計 |