NL8104457A - Regelinrichting voor optisch instrument. - Google Patents

Regelinrichting voor optisch instrument. Download PDF

Info

Publication number
NL8104457A
NL8104457A NL8104457A NL8104457A NL8104457A NL 8104457 A NL8104457 A NL 8104457A NL 8104457 A NL8104457 A NL 8104457A NL 8104457 A NL8104457 A NL 8104457A NL 8104457 A NL8104457 A NL 8104457A
Authority
NL
Netherlands
Prior art keywords
cylinder
signal
adjustment
operating
strength
Prior art date
Application number
NL8104457A
Other languages
English (en)
Dutch (nl)
Original Assignee
American Optical Corp
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 American Optical Corp filed Critical American Optical Corp
Publication of NL8104457A publication Critical patent/NL8104457A/nl

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
    • A61B3/103—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions for determining refraction, e.g. refractometers, skiascopes
    • A61B3/1035—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions for determining refraction, e.g. refractometers, skiascopes for measuring astigmatism
    • 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
    • A61B3/036—Subjective types, i.e. testing apparatus requiring the active assistance of the patient for testing visual acuity; for determination of refraction, e.g. phoropters for testing astigmatism

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)
  • Prostheses (AREA)
  • Eye Examination Apparatus (AREA)
  • Testing Of Optical Devices Or Fibers (AREA)
NL8104457A 1980-10-30 1981-09-29 Regelinrichting voor optisch instrument. NL8104457A (nl)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/202,267 US4367015A (en) 1980-10-30 1980-10-30 Control means for optical instrumentation
US20226780 1980-10-30

Publications (1)

Publication Number Publication Date
NL8104457A true NL8104457A (nl) 1982-05-17

Family

ID=22749154

Family Applications (1)

Application Number Title Priority Date Filing Date
NL8104457A NL8104457A (nl) 1980-10-30 1981-09-29 Regelinrichting voor optisch instrument.

Country Status (12)

Country Link
US (1) US4367015A (pt)
JP (1) JPS5775633A (pt)
AU (1) AU545874B2 (pt)
BE (1) BE890208A (pt)
BR (1) BR8106449A (pt)
CA (1) CA1153919A (pt)
CH (1) CH645009A5 (pt)
DE (1) DE3143003A1 (pt)
FR (1) FR2496447B1 (pt)
GB (1) GB2086603B (pt)
HK (1) HK3585A (pt)
NL (1) NL8104457A (pt)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0116210B1 (en) * 1982-12-07 1990-04-25 Matsushita Electric Industrial Co., Ltd. Optical lens moving mechanism
US6238049B1 (en) 1999-11-12 2001-05-29 Joanne Sawhill Griffin Interactive self-diagnostic system

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3524702A (en) * 1968-09-06 1970-08-18 John G Bellows Apparatus for objectively and automatically refracting the eye
US4043641A (en) * 1976-07-16 1977-08-23 American Optical Corporation Three-lens system providing a variable focal power along one principal meridian
US4203651A (en) * 1976-08-02 1980-05-20 American Optical Corporation Optical apparatus for varying focal power along one principal meridian while maintaining constant focal power along the other principal meridian
US4117341A (en) * 1976-08-02 1978-09-26 American Optical Corporation Control means
DE2654608C3 (de) * 1976-12-02 1979-06-21 Fa. Carl Zeiss, 7920 Heidenheim Refraktometer zur selbsttätigen objektiven Ermittlung des Refraktionszustandes eines Auges
US4179196A (en) * 1977-09-30 1979-12-18 American Optical Corporation Compact subjective refractive instrument
US4185896A (en) * 1978-02-27 1980-01-29 American Optical Corporation Refractor cross-cylinder apparatus
DE2901459C2 (de) * 1979-01-16 1984-07-12 J.D. Möller Optische Werke GmbH, 2000 Wedel Phoropter

Also Published As

Publication number Publication date
HK3585A (en) 1985-01-18
FR2496447B1 (fr) 1986-08-01
BR8106449A (pt) 1982-06-22
US4367015A (en) 1983-01-04
FR2496447A1 (fr) 1982-06-25
AU545874B2 (en) 1985-08-01
BE890208A (fr) 1982-01-04
CA1153919A (en) 1983-09-20
JPS5775633A (en) 1982-05-12
CH645009A5 (fr) 1984-09-14
DE3143003A1 (de) 1982-06-03
GB2086603A (en) 1982-05-12
AU7681181A (en) 1982-05-06
GB2086603B (en) 1984-01-25

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Legal Events

Date Code Title Description
CNR Transfer of rights (patent application after its laying open for public inspection)

Free format text: WARNER LAMBERT TECHNOLOGIES, INC.

A85 Still pending on 85-01-01
BV The patent application has lapsed