DD132921A1 - Projektor zum projizieren von testdarstellungen fuer augenuntersuchungen - Google Patents

Projektor zum projizieren von testdarstellungen fuer augenuntersuchungen

Info

Publication number
DD132921A1
DD132921A1 DD20221977A DD20221977A DD132921A1 DD 132921 A1 DD132921 A1 DD 132921A1 DD 20221977 A DD20221977 A DD 20221977A DD 20221977 A DD20221977 A DD 20221977A DD 132921 A1 DD132921 A1 DD 132921A1
Authority
DD
German Democratic Republic
Prior art keywords
projector
eye examinations
projecting test
test representations
representations
Prior art date
Application number
DD20221977A
Other languages
German (de)
English (en)
Inventor
Manfred Born
Original Assignee
Rodenstock Optik G
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Rodenstock Optik G filed Critical Rodenstock Optik G
Publication of DD132921A1 publication Critical patent/DD132921A1/xx

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
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/42—Servomotor, servo controller kind till VSS
    • G05B2219/42212—Rotation over, selection of smallest, shortest angle, distance

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • Ophthalmology & Optometry (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Physics & Mathematics (AREA)
  • Biophysics (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Eye Examination Apparatus (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Projection Apparatus (AREA)
  • Details Of Television Systems (AREA)
  • Input From Keyboards Or The Like (AREA)
DD20221977A 1976-11-25 1977-11-23 Projektor zum projizieren von testdarstellungen fuer augenuntersuchungen DD132921A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19762653471 DE2653471C3 (de) 1976-11-25 1976-11-25 Projektor zum Projizieren von Testdarstellungen für Augenuntersuchungen

Publications (1)

Publication Number Publication Date
DD132921A1 true DD132921A1 (de) 1978-11-22

Family

ID=5993908

Family Applications (1)

Application Number Title Priority Date Filing Date
DD20221977A DD132921A1 (de) 1976-11-25 1977-11-23 Projektor zum projizieren von testdarstellungen fuer augenuntersuchungen

Country Status (8)

Country Link
JP (1) JPS5367988A (enExample)
CH (1) CH624566A5 (enExample)
DD (1) DD132921A1 (enExample)
DE (1) DE2653471C3 (enExample)
ES (1) ES462864A1 (enExample)
FR (1) FR2371910A1 (enExample)
GB (1) GB1538630A (enExample)
IT (1) IT1106647B (enExample)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4420229A (en) * 1981-02-13 1983-12-13 Clement Clark International Ltd. Ophthalmic instruments
JPS6219144A (ja) * 1985-07-17 1987-01-27 株式会社トプコン山形 検眼チヤ−ト投影機
CN109512377B (zh) * 2018-10-25 2021-05-25 陕西省人民医院 一种红绿色盲疾病检查盘

Also Published As

Publication number Publication date
DE2653471B2 (de) 1979-03-15
CH624566A5 (en) 1981-08-14
FR2371910A1 (enExample) 1978-06-23
JPS6120292B2 (enExample) 1986-05-21
JPS5367988A (en) 1978-06-16
DE2653471A1 (de) 1978-06-01
GB1538630A (en) 1979-01-24
DE2653471C3 (de) 1979-10-31
IT1106647B (it) 1985-11-11
ES462864A1 (es) 1978-06-01

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