KR101132087B1 - 검안기의 오토 포커싱 방법 - Google Patents
검안기의 오토 포커싱 방법 Download PDFInfo
- Publication number
- KR101132087B1 KR101132087B1 KR1020090015620A KR20090015620A KR101132087B1 KR 101132087 B1 KR101132087 B1 KR 101132087B1 KR 1020090015620 A KR1020090015620 A KR 1020090015620A KR 20090015620 A KR20090015620 A KR 20090015620A KR 101132087 B1 KR101132087 B1 KR 101132087B1
- Authority
- KR
- South Korea
- Prior art keywords
- optometry
- ring
- average diameter
- focusing
- aperture
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 19
- 210000004087 cornea Anatomy 0.000 claims abstract description 12
- 238000001514 detection method Methods 0.000 abstract description 5
- 230000000903 blocking effect Effects 0.000 abstract description 4
- 238000005259 measurement Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 2
- 230000001678 irradiating effect Effects 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 210000001525 retina Anatomy 0.000 description 1
Images
Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
- A61B3/0016—Operational features thereof
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
- A61B3/0008—Apparatus for testing the eyes; Instruments for examining the eyes provided with illuminating means
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
- A61B3/10—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
- A61B3/107—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions for determining the shape or measuring the curvature of the cornea
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- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Medical Informatics (AREA)
- Biophysics (AREA)
- Ophthalmology & Optometry (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Physics & Mathematics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Eye Examination Apparatus (AREA)
Abstract
Description
Claims (2)
- 검안기의 오토 포커싱 방법에 있어서,피검안의 각막에서 반사된 링 형상의 검안링 이미지에서 평균 직경을 검출하는 과정과,조리개를 사용하여 주광원만으로 이루어진 검안링 이미지에서 평균 직경을 검출하는 과정과,상기 된 두 개의 검안링 평균직경을 비교하여 그 차를 검출하는 과정과,상기 평균직경의 차이가 미리 설정된 오차값 이내이면 포커싱을 중단하여 온 포커싱 처리하고, 오차값을 벗어나면 평균직경의 차이만큼 조리개 사용시의 검안링 평균 직경이 검출되는 방향으로 평균직경의 값을 미리 정해진 단위 길이당 평균거리로 검안기를 이동시키는 과정을 반복하여 오토 포커싱을 행하는 것을 특징으로 하는 검안기의 오토 포커싱 방법.
- 삭제
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020090015620A KR101132087B1 (ko) | 2009-02-25 | 2009-02-25 | 검안기의 오토 포커싱 방법 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020090015620A KR101132087B1 (ko) | 2009-02-25 | 2009-02-25 | 검안기의 오토 포커싱 방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20100096640A KR20100096640A (ko) | 2010-09-02 |
KR101132087B1 true KR101132087B1 (ko) | 2012-04-02 |
Family
ID=43004144
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020090015620A KR101132087B1 (ko) | 2009-02-25 | 2009-02-25 | 검안기의 오토 포커싱 방법 |
Country Status (1)
Country | Link |
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KR (1) | KR101132087B1 (ko) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102715886B (zh) * | 2012-06-21 | 2014-08-06 | 宁波明星科技发展有限公司 | 一种电脑验光仪的角膜曲率计算方法 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10323327A (ja) | 1997-05-23 | 1998-12-08 | Topcon Corp | 眼底カメラ |
JP2003164483A (ja) * | 2001-12-03 | 2003-06-10 | Nidek Co Ltd | 眼科装置及び角膜手術装置 |
JP2008006104A (ja) | 2006-06-29 | 2008-01-17 | Nidek Co Ltd | 眼底カメラ |
-
2009
- 2009-02-25 KR KR1020090015620A patent/KR101132087B1/ko active IP Right Grant
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10323327A (ja) | 1997-05-23 | 1998-12-08 | Topcon Corp | 眼底カメラ |
JP2003164483A (ja) * | 2001-12-03 | 2003-06-10 | Nidek Co Ltd | 眼科装置及び角膜手術装置 |
JP2008006104A (ja) | 2006-06-29 | 2008-01-17 | Nidek Co Ltd | 眼底カメラ |
Also Published As
Publication number | Publication date |
---|---|
KR20100096640A (ko) | 2010-09-02 |
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