DE69205651T2 - Filter-Vorrichtung für Retinoskop. - Google Patents

Filter-Vorrichtung für Retinoskop.

Info

Publication number
DE69205651T2
DE69205651T2 DE69205651T DE69205651T DE69205651T2 DE 69205651 T2 DE69205651 T2 DE 69205651T2 DE 69205651 T DE69205651 T DE 69205651T DE 69205651 T DE69205651 T DE 69205651T DE 69205651 T2 DE69205651 T2 DE 69205651T2
Authority
DE
Germany
Prior art keywords
retinoscope
filter device
filter
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.)
Expired - Fee Related
Application number
DE69205651T
Other languages
English (en)
Other versions
DE69205651D1 (de
Inventor
David G Perkins
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Welch Allyn Inc
Original Assignee
Welch Allyn Inc
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 Welch Allyn Inc filed Critical Welch Allyn Inc
Application granted granted Critical
Publication of DE69205651D1 publication Critical patent/DE69205651D1/de
Publication of DE69205651T2 publication Critical patent/DE69205651T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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)
  • Molecular Biology (AREA)
  • Ophthalmology & Optometry (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Physics & Mathematics (AREA)
  • Biophysics (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Eye Examination Apparatus (AREA)
  • Microscoopes, Condenser (AREA)
DE69205651T 1991-09-11 1992-09-11 Filter-Vorrichtung für Retinoskop. Expired - Fee Related DE69205651T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/757,899 US5200772A (en) 1991-09-11 1991-09-11 Filter apparatus for retinoscope

Publications (2)

Publication Number Publication Date
DE69205651D1 DE69205651D1 (de) 1995-11-30
DE69205651T2 true DE69205651T2 (de) 1996-03-21

Family

ID=25049686

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69205651T Expired - Fee Related DE69205651T2 (de) 1991-09-11 1992-09-11 Filter-Vorrichtung für Retinoskop.

Country Status (6)

Country Link
US (1) US5200772A (de)
EP (1) EP0532437B1 (de)
JP (1) JP3172280B2 (de)
CA (1) CA2077987C (de)
DE (1) DE69205651T2 (de)
MX (1) MX9205176A (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5459535A (en) * 1994-10-28 1995-10-17 Welch Allyn, Inc. Compact telescoping retinoscope
USD379514S (en) * 1994-10-28 1997-05-27 Welch Allyn, Inc. Compact telescoping retinoscope
US20070146634A1 (en) * 2005-12-22 2007-06-28 Leblanc Richard A Illumination characteristic selection system for imaging during an ophthalmic laser procedure and associated methods
US8740383B2 (en) 2009-05-06 2014-06-03 University Of Virginia Patent Foundation Self-illuminated handheld lens for retinal examination and photography and related method thereof
US20130182222A1 (en) * 2010-05-27 2013-07-18 University Of Virginia Patent Foundation Systems and methods for ocular fundus examination reflection reduction
US8786210B2 (en) 2010-06-30 2014-07-22 Welch Allyn, Inc. Drive circuit for light emitting diode
USD760388S1 (en) * 2014-07-31 2016-06-28 Welch Allyn, Inc. Medical device
US11147441B2 (en) 2018-01-16 2021-10-19 Welch Allyn, Inc. Physical assessment device
USD905237S1 (en) 2018-06-06 2020-12-15 Welch Allyn, Inc. Medical viewing device
USD905238S1 (en) 2018-06-22 2020-12-15 Welch Allyn, Inc. Medical viewing device
USD901010S1 (en) 2018-08-17 2020-11-03 Welch Allyn, Inc. Optical device
USD897528S1 (en) 2018-08-17 2020-09-29 Welch Allyn, Inc. Optical device

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1776960A (en) * 1926-12-11 1930-09-30 Turville Albert Edward Combined ophthalmoscope and slit lamp
US2214802A (en) * 1937-11-22 1940-09-17 American Optical Corp Polarizing retinoscope
US4063806A (en) * 1974-02-13 1977-12-20 Cavitron Corporation Coaxial ophthalmoscope arrangement
GB2204144A (en) * 1987-04-28 1988-11-02 Neitz Instr Company Limited Ophthalmoscope free from corneal reflection
US4998818A (en) * 1989-08-23 1991-03-12 Welch Allyn, Inc. Ophthalmoscope with linear polarizer

Also Published As

Publication number Publication date
EP0532437B1 (de) 1995-10-25
CA2077987C (en) 1996-03-26
MX9205176A (es) 1993-03-01
DE69205651D1 (de) 1995-11-30
EP0532437A1 (de) 1993-03-17
US5200772A (en) 1993-04-06
JPH05192297A (ja) 1993-08-03
CA2077987A1 (en) 1992-11-22
JP3172280B2 (ja) 2001-06-04

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee