NL7902639A - Refractor optische systemen. - Google Patents

Refractor optische systemen.

Info

Publication number
NL7902639A
NL7902639A NL7902639A NL7902639A NL7902639A NL 7902639 A NL7902639 A NL 7902639A NL 7902639 A NL7902639 A NL 7902639A NL 7902639 A NL7902639 A NL 7902639A NL 7902639 A NL7902639 A NL 7902639A
Authority
NL
Netherlands
Prior art keywords
optical systems
refractor
refractor optical
systems
optical
Prior art date
Application number
NL7902639A
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 NL7902639A publication Critical patent/NL7902639A/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
    • A61B3/10—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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Medical Informatics (AREA)
  • Animal Behavior & Ethology (AREA)
  • Ophthalmology & Optometry (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Physics & Mathematics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Biophysics (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Lenses (AREA)
  • Prostheses (AREA)
  • Eyeglasses (AREA)
  • Eye Examination Apparatus (AREA)
NL7902639A 1978-04-07 1979-04-04 Refractor optische systemen. NL7902639A (nl)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/894,455 US4215919A (en) 1978-04-07 1978-04-07 Refractor optical system

Publications (1)

Publication Number Publication Date
NL7902639A true NL7902639A (nl) 1979-10-09

Family

ID=25403098

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7902639A NL7902639A (nl) 1978-04-07 1979-04-04 Refractor optische systemen.

Country Status (11)

Country Link
US (1) US4215919A (fr)
JP (1) JPS54139745A (fr)
AU (1) AU521562B2 (fr)
BR (1) BR7902138A (fr)
CA (1) CA1112924A (fr)
CH (1) CH642530A5 (fr)
DE (1) DE2913001A1 (fr)
FR (1) FR2421592A1 (fr)
GB (1) GB2018461B (fr)
HK (1) HK18085A (fr)
NL (1) NL7902639A (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4820040A (en) * 1984-11-09 1989-04-11 Sims Clinton N Crossed cylinder lenses refractor and method of use
US4840479A (en) * 1984-11-09 1989-06-20 Sims Clinton N Crossed cylinder lenses refractor with three-lens variable crossed cylinder assembly and method of use
US5285224A (en) * 1984-11-09 1994-02-08 Sims Clinton N Methods and apparatus for determining refractive error
US5430508A (en) * 1984-11-09 1995-07-04 Sims; Clinton N. Refraction techniques using modified streak retinoscope assembly
US4943162A (en) * 1984-11-09 1990-07-24 Sims Clinton N Astigmatic self-refractor and method of use
US5120124A (en) * 1984-11-09 1992-06-09 Sims Clinton N Devices for determining the crossed cylinder powers and axes for multiple lens sets
US5500698A (en) * 1984-11-09 1996-03-19 Sims; Clinton N. Optical instruments such as retinoscopes which may incorporate multiple lens assemblies and methods of calibrating such instruments

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1265671A (en) * 1916-10-09 1918-05-07 Bausch & Lomb Ophthalmic test-lens set.
US1455457A (en) * 1919-09-05 1923-05-15 American Optical Corp Trial lens
US2266797A (en) * 1939-04-06 1941-12-23 American Optical Corp Eye testing instrument
GB821722A (en) * 1956-01-13 1959-10-14 Pierre Andre Marly Sight-testing apparatus
GB947359A (en) * 1961-11-23 1964-01-22 Rudolf Rodenstock Indicating means for phoropters
US3498699A (en) * 1967-06-13 1970-03-03 American Optical Corp Refractor

Also Published As

Publication number Publication date
FR2421592A1 (fr) 1979-11-02
CH642530A5 (de) 1984-04-30
BR7902138A (pt) 1979-12-04
US4215919A (en) 1980-08-05
CA1112924A (fr) 1981-11-24
GB2018461B (en) 1983-02-09
AU4562779A (en) 1979-10-11
FR2421592B1 (fr) 1984-08-24
HK18085A (en) 1985-03-22
GB2018461A (en) 1979-10-17
AU521562B2 (en) 1982-04-08
JPS54139745A (en) 1979-10-30
DE2913001A1 (de) 1980-03-06

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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
BA A request for search or an international-type search has been filed
BB A search report has been drawn up
BC A request for examination has been filed
BV The patent application has lapsed