KR100939961B1 - Led 모듈을 포함하는 근접 시력 진단기 - Google Patents
Led 모듈을 포함하는 근접 시력 진단기 Download PDFInfo
- Publication number
- KR100939961B1 KR100939961B1 KR1020070099963A KR20070099963A KR100939961B1 KR 100939961 B1 KR100939961 B1 KR 100939961B1 KR 1020070099963 A KR1020070099963 A KR 1020070099963A KR 20070099963 A KR20070099963 A KR 20070099963A KR 100939961 B1 KR100939961 B1 KR 100939961B1
- Authority
- KR
- South Korea
- Prior art keywords
- light
- image
- chart
- led module
- vision
- Prior art date
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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
- A61B3/02—Subjective types, i.e. testing apparatus requiring the active assistance of the patient
- A61B3/028—Subjective types, i.e. testing apparatus requiring the active assistance of the patient for testing visual acuity; for determination of refraction, e.g. phoropters
- A61B3/032—Devices for presenting test symbols or characters, e.g. test chart projectors
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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
- A61B3/0008—Apparatus for testing the eyes; Instruments for examining the eyes provided with illuminating means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V33/00—Structural combinations of lighting devices with other articles, not otherwise provided for
- F21V33/0064—Health, life-saving or fire-fighting equipment
- F21V33/0068—Medical equipment
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Medical Informatics (AREA)
- Ophthalmology & Optometry (AREA)
- Biophysics (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)
- General Engineering & Computer Science (AREA)
- Eye Examination Apparatus (AREA)
Abstract
Description
Claims (4)
- 시력 검사용 빛을 출사하는 LED 모듈(Light Emitting Diode Module)을 포함하는 광원 장치;상기 광원 장치로부터 출사된 빛이 투과되어 시력 검사용 이미지를 출사하는 챠트;상기 챠트의 전면에 위치하여, 상기 광원 장치로부터의 빛을 가려주어, 검안자에 필요한 시력 검사용 이미지를 제공하는 마스크; 및상기 챠트로부터 출사된 시력 검사용 이미지가 피검자를 향하도록 경로를 변경하는 투사 장치를 포함하며,상기 광원 장치는 상기 LED 모듈로부터 출사된 빛을 부드럽게 하는 스캐터링 필터(Scattering filter) 및 상기 스캐터링 필터를 투과한 빛의 색온도(Color temperature)를 조정하는 컬러 필터(Color filter)를 포함하고, 상기 LED 모듈은 기판 및 상기 기판 위에 배열된 10 내지 25개의 LED를 포함하는 것인 근접 시력 진단기.
- 삭제
- 삭제
- 제1항에 있어서, 상기 투사 장치는 상기 챠트로부터 출사된 시력 검사용 이미지를 반사하여 경로를 변경하는 반사 거울; 상기 반사 거울에서 반사된 시력 검사용 이미지가 투과되는 하프 미러; 및 상기 하프 미러를 투과한 시력 검사용 이미 지를 반사하여 다시 상기 하프 미러를 향하도록 경로를 변경하는 오목 거울을 포함하며, 상기 오목 거울에서 반사된 시력 검사용 이미지는 상기 하프 미러에서 반사되어 피검자를 향하도록 경로를 변경하는 것인 근접 시력 진단기.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020070099963A KR100939961B1 (ko) | 2007-10-04 | 2007-10-04 | Led 모듈을 포함하는 근접 시력 진단기 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020070099963A KR100939961B1 (ko) | 2007-10-04 | 2007-10-04 | Led 모듈을 포함하는 근접 시력 진단기 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20090034622A KR20090034622A (ko) | 2009-04-08 |
KR100939961B1 true KR100939961B1 (ko) | 2010-02-04 |
Family
ID=40760468
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020070099963A KR100939961B1 (ko) | 2007-10-04 | 2007-10-04 | Led 모듈을 포함하는 근접 시력 진단기 |
Country Status (1)
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KR (1) | KR100939961B1 (ko) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR102099473B1 (ko) * | 2012-07-31 | 2020-04-09 | 가부시키가이샤 니데크 | 검안 장치 |
CN109350002B (zh) * | 2018-11-26 | 2021-03-26 | 连云港市一明医疗科技有限公司 | 一种眼科检测装置 |
CN109820475A (zh) * | 2019-02-25 | 2019-05-31 | 上海雄博精密仪器股份有限公司 | 内读式投影视力仪的光路结构 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07327928A (ja) * | 1994-06-07 | 1995-12-19 | Canon Inc | 視力計 |
JPH09271462A (ja) * | 1996-04-05 | 1997-10-21 | Canon Inc | 検眼装置 |
JPH1189796A (ja) * | 1997-09-25 | 1999-04-06 | Topcon Corp | 視標表示装置及び検眼装置 |
JP2000342538A (ja) * | 1999-06-01 | 2000-12-12 | Canon Inc | 眼科撮影装置 |
-
2007
- 2007-10-04 KR KR1020070099963A patent/KR100939961B1/ko active IP Right Grant
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07327928A (ja) * | 1994-06-07 | 1995-12-19 | Canon Inc | 視力計 |
JPH09271462A (ja) * | 1996-04-05 | 1997-10-21 | Canon Inc | 検眼装置 |
JPH1189796A (ja) * | 1997-09-25 | 1999-04-06 | Topcon Corp | 視標表示装置及び検眼装置 |
JP2000342538A (ja) * | 1999-06-01 | 2000-12-12 | Canon Inc | 眼科撮影装置 |
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Publication number | Publication date |
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KR20090034622A (ko) | 2009-04-08 |
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