FR2283654B1 - - Google Patents
Info
- Publication number
- FR2283654B1 FR2283654B1 FR7527079A FR7527079A FR2283654B1 FR 2283654 B1 FR2283654 B1 FR 2283654B1 FR 7527079 A FR7527079 A FR 7527079A FR 7527079 A FR7527079 A FR 7527079A FR 2283654 B1 FR2283654 B1 FR 2283654B1
- Authority
- FR
- France
- 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.)
- Expired
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
- A61B3/02—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
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/18—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for optical projection, e.g. combination of mirror and condenser and objective
Landscapes
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Medical Informatics (AREA)
- Surgery (AREA)
- Biophysics (AREA)
- Ophthalmology & Optometry (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- General Physics & Mathematics (AREA)
- Molecular Biology (AREA)
- Optics & Photonics (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Projection Apparatus (AREA)
- Eye Examination Apparatus (AREA)
- Liquid Crystal Display Device Control (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19742442804 DE2442804C3 (de) | 1974-09-06 | Projektor zum Projizieren von Testzeichen für Augenuntersuchungen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2283654A1 FR2283654A1 (fr) | 1976-04-02 |
| FR2283654B1 true FR2283654B1 (enExample) | 1981-08-21 |
Family
ID=5925088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7527079A Granted FR2283654A1 (fr) | 1974-09-06 | 1975-09-04 | Projecteur de figures d'examen de l'oeil |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPS5146793A (enExample) |
| FR (1) | FR2283654A1 (enExample) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2807515C2 (de) * | 1978-02-22 | 1983-12-08 | Oculus-Optikgeräte GmbH, 6331 Dutenhofen | Synoptophor |
| FR2478459A1 (fr) * | 1980-03-21 | 1981-09-25 | Briot Internal | Appareil d'examen des defauts de la fonction visuelle globale |
| CN110244456A (zh) * | 2019-07-16 | 2019-09-17 | 江南大学 | 一种视觉流测量装置及其使用方法 |
-
1975
- 1975-08-18 JP JP50100060A patent/JPS5146793A/ja active Pending
- 1975-09-04 FR FR7527079A patent/FR2283654A1/fr active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| FR2283654A1 (fr) | 1976-04-02 |
| JPS5146793A (en) | 1976-04-21 |
| DE2442804A1 (de) | 1976-04-01 |
| DE2442804B2 (de) | 1976-10-07 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |