JPS6458233A - Infant sight examination apparatus - Google Patents
Infant sight examination apparatusInfo
- Publication number
- JPS6458233A JPS6458233A JP62215758A JP21575887A JPS6458233A JP S6458233 A JPS6458233 A JP S6458233A JP 62215758 A JP62215758 A JP 62215758A JP 21575887 A JP21575887 A JP 21575887A JP S6458233 A JPS6458233 A JP S6458233A
- Authority
- JP
- Japan
- Prior art keywords
- right answer
- value
- target
- acuity
- input
- 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.)
- Pending
Links
Landscapes
- Eye Examination Apparatus (AREA)
Abstract
PURPOSE:To accurately and easily examine visual acuity by one examiner, by mounting a control means for controlling a projector so as to project a target for an acuity value above one stage when a right answer ratio is a definite value or more and an acuity value determining means for determining the sight value corresponding to the target when the right answer ratio becomes below a definite value to display the same on a display device. CONSTITUTION:An examiner operates an input means 43 to input the looking direction of an examinee when two targets are projected on a screen. A right answer ratio calculation means 44 compares the target during projection with input direction data by projectors 6, 7 when input direction data is inputted from the input means 43 and, when both of them coincide, a right answer is judged to calculate a right answer ratio. When the right answer ratio becomes a definite value or more, a control means 45 controls the projectors 6, 7 so as to project the target of the acuity value above one stage. When the right answer becomes below a definite value, an acuity value determining means 46 determines the acuity value corresponding to the target at that time and said value is displayed on a display device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62215758A JPS6458233A (en) | 1987-08-29 | 1987-08-29 | Infant sight examination apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62215758A JPS6458233A (en) | 1987-08-29 | 1987-08-29 | Infant sight examination apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6458233A true JPS6458233A (en) | 1989-03-06 |
Family
ID=16677740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62215758A Pending JPS6458233A (en) | 1987-08-29 | 1987-08-29 | Infant sight examination apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6458233A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007037584A (en) * | 2005-07-29 | 2007-02-15 | Nidek Co Ltd | Visual acuity examining apparatus |
| JP2012152302A (en) * | 2011-01-24 | 2012-08-16 | Nidek Co Ltd | Automatic optometer |
| JPWO2019021445A1 (en) * | 2017-07-28 | 2020-06-25 | 株式会社オプティム | Judgment system, method and program |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6227601B2 (en) * | 1979-11-30 | 1987-06-16 | Nippon Denso Co | |
| JPS6227602B2 (en) * | 1979-10-27 | 1987-06-16 | Hitachi Ltd |
-
1987
- 1987-08-29 JP JP62215758A patent/JPS6458233A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6227602B2 (en) * | 1979-10-27 | 1987-06-16 | Hitachi Ltd | |
| JPS6227601B2 (en) * | 1979-11-30 | 1987-06-16 | Nippon Denso Co |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007037584A (en) * | 2005-07-29 | 2007-02-15 | Nidek Co Ltd | Visual acuity examining apparatus |
| JP2012152302A (en) * | 2011-01-24 | 2012-08-16 | Nidek Co Ltd | Automatic optometer |
| JPWO2019021445A1 (en) * | 2017-07-28 | 2020-06-25 | 株式会社オプティム | Judgment system, method and program |
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