DE289870C - - Google Patents
Info
- Publication number
- DE289870C DE289870C DENDAT289870D DE289870DA DE289870C DE 289870 C DE289870 C DE 289870C DE NDAT289870 D DENDAT289870 D DE NDAT289870D DE 289870D A DE289870D A DE 289870DA DE 289870 C DE289870 C DE 289870C
- Authority
- DE
- Germany
- Prior art keywords
- light source
- transparent mirror
- optometer
- beam path
- pupil
- 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.)
- Active
Links
- 210000001747 Pupil Anatomy 0.000 claims description 7
- 239000011521 glass Substances 0.000 claims description 5
- 230000004308 accommodation Effects 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 201000009310 astigmatism Diseases 0.000 description 2
- 230000003287 optical Effects 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 1
- 230000000873 masking Effects 0.000 description 1
- 230000001179 pupillary Effects 0.000 description 1
Classifications
-
- 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
- A61B3/103—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions for determining refraction, e.g. refractometers, skiascopes
Landscapes
- 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)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE289870C true DE289870C (ja) |
Family
ID=544869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT289870D Active DE289870C (ja) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE289870C (ja) |
-
0
- DE DENDAT289870D patent/DE289870C/de active Active
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