DE179026C - - Google Patents
Info
- Publication number
- DE179026C DE179026C DENDAT179026D DE179026DC DE179026C DE 179026 C DE179026 C DE 179026C DE NDAT179026 D DENDAT179026 D DE NDAT179026D DE 179026D C DE179026D C DE 179026DC DE 179026 C DE179026 C DE 179026C
- Authority
- DE
- Germany
- Prior art keywords
- lens
- curvature
- pointer
- variable
- focal length
- 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
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
- A61B3/12—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions for looking at the eye fundus, e.g. ophthalmoscopes
- A61B3/1208—Multiple lens hand-held instruments
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)
- Testing Of Optical Devices Or Fibers (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE179026C true DE179026C (enExample) |
Family
ID=443370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT179026D Active DE179026C (enExample) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE179026C (enExample) |
-
0
- DE DENDAT179026D patent/DE179026C/de active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE1297357B (de) | Vorrichtung zum Messen des Pupillenabstandes | |
| DE179026C (enExample) | ||
| DE1291438B (de) | Applanations-Tonometer | |
| DE2930364C2 (de) | Differenzdruckmeßgerät, insbesondere Dichtheitsprüfgerät | |
| DE234941C (enExample) | ||
| DE4444459C1 (de) | Anordnung zur automatischen Bestimmung der Andruckkraft bei Augendruckuntersuchungen | |
| DE278226C (enExample) | ||
| DE2610821B2 (de) | Optisches Gerät zur gleichzeitigen Abbildung der gesamten Netzhaut des Auges von Lebewesen | |
| DE270212C (enExample) | ||
| DE438394C (de) | Vorrichtung zur Untersuchung prismatischer Linsensysteme | |
| DE583906C (de) | Zielfernrohr | |
| DE94716C (enExample) | ||
| DE287842C (enExample) | ||
| DE213754C (enExample) | ||
| DE909046C (de) | Basis-Entfernungsmesser | |
| DE237470C (enExample) | ||
| DE394627C (de) | Physikalisches Instrument, dessen Ablesung mit Hilfe eines Lichtstrahles erfolgt, insbesondere Kurzzeitmesser fuer Echoloteinrichtungen | |
| DE263165C (enExample) | ||
| DE637698C (de) | Projektionswaage | |
| DE190920C (enExample) | ||
| DE541107C (de) | Instrument zur Bestimmung der Fehlsichtigkeit | |
| DE898519C (de) | Lichtzeigermessgeraet | |
| DE499084C (de) | Vorrichtung zur Untersuchung von Linsensystemen | |
| DE10550C (de) | Apparat zur Messung von Spannungs-Aenderungen in den Bestandtheilen von Tragwerken | |
| DE27860C (de) | Apparat zur Prüfung der Brennweite des Auges oder anderer optischer Systeme |