UA66936C2 - Device for measuring refraction aberrations of eye - Google Patents

Device for measuring refraction aberrations of eye

Info

Publication number
UA66936C2
UA66936C2 UA2002010001A UA2002010001A UA66936C2 UA 66936 C2 UA66936 C2 UA 66936C2 UA 2002010001 A UA2002010001 A UA 2002010001A UA 2002010001 A UA2002010001 A UA 2002010001A UA 66936 C2 UA66936 C2 UA 66936C2
Authority
UA
Ukraine
Prior art keywords
aperture
beam deflection
deflector
telescope
acousto
Prior art date
Application number
UA2002010001A
Inventor
Vasyl Vasyliovych Molebnyi
Lamar Frederick Laster Jr
Yevhenii Mykolaiovych Smyrnov
Leonid Mykolaiovych Ilchenko
Serhii Oleksandrovych Kolienov
Original Assignee
Vasyl Vasyliovych Molebnyi
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 Vasyl Vasyliovych Molebnyi filed Critical Vasyl Vasyliovych Molebnyi
Priority to UA2002010001A priority Critical patent/UA66936C2/en
Priority to PCT/US2002/041853 priority patent/WO2003057008A2/en
Priority to AU2002367322A priority patent/AU2002367322A1/en
Priority to US10/714,454 priority patent/US7303281B2/en
Publication of UA66936C2 publication Critical patent/UA66936C2/en

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B3/00Apparatus for testing the eyes; Instruments for examining the eyes
    • A61B3/10Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
    • A61B3/107Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions for determining the shape or measuring the curvature of the cornea
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B3/00Apparatus for testing the eyes; Instruments for examining the eyes
    • A61B3/10Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
    • A61B3/1015Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions for wavefront analysis

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)
  • Eye Examination Apparatus (AREA)

Abstract

The device for measuring the refraction aberrations of the eye comprises the probing channel, the measuring channel, and the channel of normalization. The probing channel comprises the following units set consecutively: the laser, two acousto-optic one-coordinate deflectors, the selector of the representing the telescope with the aperture diaphragm and the collimation lens. The exit aperture of the selector is aligned with the front focus of the collimation lens. The telescope transferring the equivalent center of beam deflection by the first deflector to the equivalent center of beam deflection by the second deflector is mounted between the acousto-optic crystals of the one-coordinate deflectors. The exit aperture of the telescope and the entrance aperture of the selector of first-order diffraction are aligned with the equivalent center of beam deflection by the acousto-optic crystal of the second deflector. The measuring channel comprises the objective lens and the position-sensitive photodetector. The latter is mounted within the focal plane and connected with the processing and displaying unit of the computer. In addition, the telescope constructed of the spherical and cylindrical lenses is equipped with the aperture diaphragm installed at the point where the foci of the entrance and exit lenses coincide. The aperture diaphragm may be designed as a slit oriented by its longer side towards the direction of beam deflection by the first deflector. Both aperture diaphragms are surrounded by the light traps outside the area of the first-order diffraction of both directions of beam deflection. The traps may represent the light-absorbing surfaces converging at an acute angle.
UA2002010001A 1998-10-07 2002-01-02 Device for measuring refraction aberrations of eye UA66936C2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
UA2002010001A UA66936C2 (en) 2002-01-02 2002-01-02 Device for measuring refraction aberrations of eye
PCT/US2002/041853 WO2003057008A2 (en) 2002-01-02 2002-12-31 Device for measuring the aberration refraction
AU2002367322A AU2002367322A1 (en) 2002-01-02 2002-12-31 Device for measuring the aberration refraction
US10/714,454 US7303281B2 (en) 1998-10-07 2003-11-14 Method and device for determining refractive components and visual function of the eye for vision correction

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
UA2002010001A UA66936C2 (en) 2002-01-02 2002-01-02 Device for measuring refraction aberrations of eye

Publications (1)

Publication Number Publication Date
UA66936C2 true UA66936C2 (en) 2004-06-15

Family

ID=34421053

Family Applications (1)

Application Number Title Priority Date Filing Date
UA2002010001A UA66936C2 (en) 1998-10-07 2002-01-02 Device for measuring refraction aberrations of eye

Country Status (3)

Country Link
AU (1) AU2002367322A1 (en)
UA (1) UA66936C2 (en)
WO (1) WO2003057008A2 (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6409345B1 (en) * 2000-08-08 2002-06-25 Tracey Technologies, Llc Method and device for synchronous mapping of the total refraction non-homogeneity of the eye and its refractive components
US6382795B1 (en) * 2000-05-20 2002-05-07 Carl Zeiss, Inc. Method and apparatus for measuring refractive errors of an eye

Also Published As

Publication number Publication date
AU2002367322A1 (en) 2003-07-24
WO2003057008A2 (en) 2003-07-17
WO2003057008A3 (en) 2003-09-18
AU2002367322A8 (en) 2003-07-24

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