CA2587739A1 - Sphero cylindrical eye refraction system using fulid focus electrostatically variable lenses - Google Patents
Sphero cylindrical eye refraction system using fulid focus electrostatically variable lenses Download PDFInfo
- Publication number
- CA2587739A1 CA2587739A1 CA002587739A CA2587739A CA2587739A1 CA 2587739 A1 CA2587739 A1 CA 2587739A1 CA 002587739 A CA002587739 A CA 002587739A CA 2587739 A CA2587739 A CA 2587739A CA 2587739 A1 CA2587739 A1 CA 2587739A1
- Authority
- CA
- Canada
- Prior art keywords
- fluid
- optical path
- cylindrical
- opening
- power
- 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.)
- Abandoned
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Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B3/00—Simple or compound lenses
- G02B3/12—Fluid-filled or evacuated lenses
-
- 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
- A61B3/0285—Phoropters
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
- G02B26/004—Optical devices or arrangements for the control of light using movable or deformable optical elements based on a displacement or a deformation of a fluid
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B3/00—Simple or compound lenses
- G02B3/12—Fluid-filled or evacuated lenses
- G02B3/14—Fluid-filled or evacuated lenses of variable focal length
Abstract
Optical devices, systems, and methods can produce and/or measure cylindrical (as well as spherical) lens shapes throughout a range of both powers and cylindrical axes. Fluid focus lenses employ electrical potentials to vary the shape of a fluid/fluid interface between two immiscible fluids having differing indices of refractions by controlling localized angles between the interface and a surrounding container well. Spherical power, cylindrical power, and cylindrical access alignment may be varied with no moving parts (other than the fluids).
Claims (36)
1. An optical apparatus comprising:
at least one housing defining at least one opening having an optical path therethrough;
a plurality of fluids disposed in the at least one opening so as to define one or more fluid/fluid interfaces; and an electrical potential source coupled to the at least one opening so as to apply a plurality of electrowetting potentials, the source configured to vary at least one of the electrowetting potentials in response to a first input so that the one or more fluid/fluid interfaces change at least a cylindrical orientation of the optical path.
at least one housing defining at least one opening having an optical path therethrough;
a plurality of fluids disposed in the at least one opening so as to define one or more fluid/fluid interfaces; and an electrical potential source coupled to the at least one opening so as to apply a plurality of electrowetting potentials, the source configured to vary at least one of the electrowetting potentials in response to a first input so that the one or more fluid/fluid interfaces change at least a cylindrical orientation of the optical path.
2. The apparatus of claim 1, wherein the source is configured to alter the at least one electrowetting potential in response to a second input so that the one or more fluid/fluid interfaces vary a spherical power in response to a second input, and so that the one or more fluid/fluid interfaces vary a cylindrical power in response to a third input, the one or more fluid/fluid interfaces having a sphero-cylindrical power along the optical path.
3. The apparatus of claim 1, wherein:
the at least one housing defines a first opening with a first fluid/fluid interface therein and a second opening with a second fluid/fluid interface therein, the first and second openings each comprising a rectangular cross-section;
varying a first electrowetting potential effects changes in a first variable cylindrical power of the first fluid interface, the first variable cylindrical power having a first cylindrical orientation extending laterally across the optical path;
varying a second electrowetting potential effects changes in a second variable cylindrical power of the second fluid interface, the second variable cylindrical power having a second cylindrical orientation extending laterally across the optical path;
and wherein the first cylindrical orientation is angularly offset from the second cylindrical orientation about the optical path.
the at least one housing defines a first opening with a first fluid/fluid interface therein and a second opening with a second fluid/fluid interface therein, the first and second openings each comprising a rectangular cross-section;
varying a first electrowetting potential effects changes in a first variable cylindrical power of the first fluid interface, the first variable cylindrical power having a first cylindrical orientation extending laterally across the optical path;
varying a second electrowetting potential effects changes in a second variable cylindrical power of the second fluid interface, the second variable cylindrical power having a second cylindrical orientation extending laterally across the optical path;
and wherein the first cylindrical orientation is angularly offset from the second cylindrical orientation about the optical path.
4. The apparatus of claim 3, wherein:
the at least one housing defines a third opening with a third fluid/fluid interface therein, the third opening comprising a rectangular cross-section;
varying a third electrowetting potential effects changes in a third variable cylindrical power of a third fluid/fluid interface disposed within the third opening, the third variable cylindrical power having a third cylindrical orientation extending laterally across the optical path, the third cylindrical orientation being angularly offset from the first and second cylindrical axes about the optical path.
the at least one housing defines a third opening with a third fluid/fluid interface therein, the third opening comprising a rectangular cross-section;
varying a third electrowetting potential effects changes in a third variable cylindrical power of a third fluid/fluid interface disposed within the third opening, the third variable cylindrical power having a third cylindrical orientation extending laterally across the optical path, the third cylindrical orientation being angularly offset from the first and second cylindrical axes about the optical path.
5. The apparatus of claim 4, wherein the first cylindrical orientation is substantially perpendicular to the second cylindrical orientation, and wherein the third cylindrical orientation is angularly offset from the first cylindrical orientation by about 45 degrees.
6. The apparatus of claim 3, further comprising first and second electrodes along opposing sides of the first opening, and third and forth electrodes along opposing sides of the second opening.
7. The apparatus of claim 1, wherein the housing comprises a wall disposed around the optical path, and further comprising a plurality of conductors distributed circumferentially about the wall.
8. The apparatus of claim 7, wherein the conductors define an electrode array with each electrode of the array disposed circumferentially between and electrically separated from two adjacent electrodes of the array.
9. The apparatus of claim 7, wherein the power source applies a circumferential series of potentials about the optical path.
10. The apparatus of claim 9, wherein the series of potentials comprise a substantially sinusoidal pattern of DC voltages, and wherein the power source is configured to vary an amplitude of the sinusoidal pattern in response to a second input so as to vary a cylindrical power along the optical path.
11. The apparatus of claim 10, wherein the power source is configured to rotate the sinusoidal voltage pattern about the optical path in response to the first input.
12. The apparatus of claim 11, wherein the power source is configured to vary an average voltage of the pattern in response to a third input so as to alter a spherical power along the optical path.
13. The apparatus of claim 1, wherein the optical apparatus varies a cylindrical power in response to a second input and the cylindrical orientation in response to the first input by effecting movement of the fluids within the at least one housing and without effecting other movement of the apparatus.
14. The apparatus of claim 13, wherein the apparatus can vary the cylindrical power throughout a range from at least -20.0 diopters to at least about +20.0 diopters, wherein the apparatus can vary the cylindrical orientation throughout about 180 degrees, and wherein the apparatus can vary a spherical power throughout a range from at least -6.0 to at least +6Ø
15. The apparatus of claim 13, wherein the power source comprises a processor, the processor determining the plurality of electrowetting potentials in response to the first and second inputs.
16. The apparatus of claim 15, wherein the processor further determines the electrowetting potentials in response to a third input so as to vary a spherical optical power along the optical path.
17. A fluid cylindrical lens apparatus comprising:
a first housing having a first prismatic opening with an optical path therethrough, the first opening having a first surface and a second surface, the second surface offset from the first surface with the optical path therebetween;
a plurality of fluids disposed in the opening so as to define a first fluid/fluid interface traversing the first and second surfaces;
an electrical potential source coupled to the first and second surfaces to apply a first variable potential thereto so as to change a first variable cylindrical power of the fluid/fluid interface along the optical path.
a first housing having a first prismatic opening with an optical path therethrough, the first opening having a first surface and a second surface, the second surface offset from the first surface with the optical path therebetween;
a plurality of fluids disposed in the opening so as to define a first fluid/fluid interface traversing the first and second surfaces;
an electrical potential source coupled to the first and second surfaces to apply a first variable potential thereto so as to change a first variable cylindrical power of the fluid/fluid interface along the optical path.
18. The fluid cylindrical lens apparatus of claim 17, wherein the first variable cylindrical power has a first orientation traversing end surfaces of the first opening, wherein the electrical potential source applies another potential to the end surfaces, the other potential being different than the first potential, and further comprising:
a second housing having a second opening, the second opening having a third surface and a forth surface with the optical path therebetween;
a plurality of fluids disposed in the second opening so as to define a second fluid/fluid interface therebetween;
the power source coupled to the third and forth surfaces to apply a second variable potential thereto so as to change a second variable cylindrical power having a second orientation, the second orientation angularly offset about the optical path relative to the first orientation;
a third housing having a third opening, the third opening having a fifth surface and a sixth surface with the optical path therebetween;
a plurality of fluids disposed in the third opening so as to define a third fluid/fluid interface therebetween;
the potential source coupled to the fifth and sixth surfaces to apply a third variable potential thereto so as to change a third cylindrical power having a third orientation, the third orientation angularly offset from the first and second axes so as to allow the fluid cylindrical lens apparatus to vary spherical power along the optical path, cylindrical power along the optical path, and cylindrical orientation along the optical path.
a second housing having a second opening, the second opening having a third surface and a forth surface with the optical path therebetween;
a plurality of fluids disposed in the second opening so as to define a second fluid/fluid interface therebetween;
the power source coupled to the third and forth surfaces to apply a second variable potential thereto so as to change a second variable cylindrical power having a second orientation, the second orientation angularly offset about the optical path relative to the first orientation;
a third housing having a third opening, the third opening having a fifth surface and a sixth surface with the optical path therebetween;
a plurality of fluids disposed in the third opening so as to define a third fluid/fluid interface therebetween;
the potential source coupled to the fifth and sixth surfaces to apply a third variable potential thereto so as to change a third cylindrical power having a third orientation, the third orientation angularly offset from the first and second axes so as to allow the fluid cylindrical lens apparatus to vary spherical power along the optical path, cylindrical power along the optical path, and cylindrical orientation along the optical path.
19. An optical apparatus comprising:
at least one housing defining at least one opening having an optical path extending axially therethrough;
a plurality of fluids disposed in the at least one opening so as to define at least one fluid/fluid interface;
a plurality of electrical conductors distributed circumferentially about the optical path;
an electrical potential source coupled to the electrical conductors so as to simultaneously apply a plurality of differing electrowetting potentials thereto, the source configured to alter the fluid/fluid interface so as to controllably vary a sphero-cylindrical power along the optical path.
at least one housing defining at least one opening having an optical path extending axially therethrough;
a plurality of fluids disposed in the at least one opening so as to define at least one fluid/fluid interface;
a plurality of electrical conductors distributed circumferentially about the optical path;
an electrical potential source coupled to the electrical conductors so as to simultaneously apply a plurality of differing electrowetting potentials thereto, the source configured to alter the fluid/fluid interface so as to controllably vary a sphero-cylindrical power along the optical path.
20. The apparatus of claim 19, wherein the source is configured to alter the electrowetting potentials:
in response to a first input so that the one or more fluid/fluid interfaces rotate a cylindrical orientation about the optical path;
in response to a second input so that the one or more fluid/fluid interfaces vary a spherical power along the optical path; and in response to a third input so that the one or more fluid/fluid interfaces vary a cylindrical power.
in response to a first input so that the one or more fluid/fluid interfaces rotate a cylindrical orientation about the optical path;
in response to a second input so that the one or more fluid/fluid interfaces vary a spherical power along the optical path; and in response to a third input so that the one or more fluid/fluid interfaces vary a cylindrical power.
21. The apparatus of claim 1, wherein the at least one housing defines a first opening with a first fluid/fluid interface therein and a second opening with a second fluid/fluid interface therein, the first and second openings each comprising a rectangular cross-section.
22. The apparatus of claim 21, wherein the plurality of electrical conductors comprise first and second electrodes along opposing sides of the first opening, and third and forth electrodes along opposing sides of the second opening.
23. The apparatus of claim 19, wherein the housing comprises a wall disposed around the optical path, and further comprising a plurality of conductors distributed circumferentially about the wall.
24. The apparatus of claim 23, wherein the power source applies a substantially sinusoidal circumferential pattern of DC voltages about the optical path.
25. A phoropter or automatic refractor comprising:
at least one housing defining at least one opening having an optical path therethrough;
a plurality of fluids disposed in the at least one opening so as to define one or more fluid/fluid interfaces;
a plurality of electrical conductors near the at least one opening; and an electrical potential source coupled to the electrical conductors so as to apply at least one electrowetting potential, the source configured to alter the one or more fluid/fluid interfaces so as to controllably vary one or more characteristics selected from among:
a spherical power along the optical path;
a cylindrical power along the optical path; and a cylindrical orientation along the optical path.
at least one housing defining at least one opening having an optical path therethrough;
a plurality of fluids disposed in the at least one opening so as to define one or more fluid/fluid interfaces;
a plurality of electrical conductors near the at least one opening; and an electrical potential source coupled to the electrical conductors so as to apply at least one electrowetting potential, the source configured to alter the one or more fluid/fluid interfaces so as to controllably vary one or more characteristics selected from among:
a spherical power along the optical path;
a cylindrical power along the optical path; and a cylindrical orientation along the optical path.
26 26. A fluid lens optical method comprising:
configuring one or more fluid/fluid interfaces by applying at least one electrowetting potentials so as to so as to change a cylindrical orientation along an optical path.
configuring one or more fluid/fluid interfaces by applying at least one electrowetting potentials so as to so as to change a cylindrical orientation along an optical path.
27. The optical method of claim 26, further comprising:
reconfiguring the one or more fluid/fluid interfaces by changing the at least one potential so as to increase a spherical power along the optical path.
reconfiguring the one or more fluid/fluid interfaces by changing the at least one potential so as to increase a spherical power along the optical path.
28. The optical method of claim 27, further comprising:
reconfiguring the one or more fluid/fluid interfaces by changing the at least one potential so that a cylindrical orientation of the cylindrical power changes.
reconfiguring the one or more fluid/fluid interfaces by changing the at least one potential so that a cylindrical orientation of the cylindrical power changes.
29. The optical method of claim 28, wherein cylindrical power, cylindrical orientation, and spherical power are controllably varied by moving fluids in response to the at least one potential, and without other movement along the optical path.
30. A fluid lens optical method comprising:
configuring at least one fluid/fluid interface traversed by an optical path by simultaneously applying a plurality of circumferentially differing electrowetting potentials about the optical path so as to simultaneously provide a first curvature of the at least one fluid/fluid interface and a second curvature of the at least one fluid/fluid interface different than the first curvature.
configuring at least one fluid/fluid interface traversed by an optical path by simultaneously applying a plurality of circumferentially differing electrowetting potentials about the optical path so as to simultaneously provide a first curvature of the at least one fluid/fluid interface and a second curvature of the at least one fluid/fluid interface different than the first curvature.
31. The optical method of claim 30, wherein the first and second curvatures are disposed along a single fluid/fluid interface and angularly offset about an axis of the optical path.
32. The optical method of claim 31, wherein the first curvature is flat, the fluid/fluid interface defining a cylinder lens.
33. The optical method of claim 31, wherein the first and second curvatures are not flat.
34. The optical method of claim 33, wherein the fluid/fluid interface defines a sphero-cylinder lens.
35. The optical method of claim 33, wherein the fluid/fluid interface defines a non-sphero-cylinder lens.
36. An optical apparatus comprising:
at least one housing defining at least one opening having an optical path therethrough;
a plurality of fluids disposed in the at least one opening so as to define at least one fluid/fluid interface; and an electrical potential source coupled to the at least one opening, the source configured to simultaneously apply a plurality of electrowetting potentials so that the at least one fluid/fluid interface controllably varies in spherical and cylindrical power.
at least one housing defining at least one opening having an optical path therethrough;
a plurality of fluids disposed in the at least one opening so as to define at least one fluid/fluid interface; and an electrical potential source coupled to the at least one opening, the source configured to simultaneously apply a plurality of electrowetting potentials so that the at least one fluid/fluid interface controllably varies in spherical and cylindrical power.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/993,409 | 2004-11-18 | ||
US10/993,409 US7413306B2 (en) | 2004-11-18 | 2004-11-18 | Sphero cylindrical eye refraction system using fluid focus electrostatically variable lenses |
PCT/US2005/042099 WO2006055893A2 (en) | 2004-11-18 | 2005-11-17 | Sphero cylindrical eye refraction system using fluid focus electrostatically variable lenses |
Publications (1)
Publication Number | Publication Date |
---|---|
CA2587739A1 true CA2587739A1 (en) | 2006-05-26 |
Family
ID=36387410
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002587739A Abandoned CA2587739A1 (en) | 2004-11-18 | 2005-11-17 | Sphero cylindrical eye refraction system using fulid focus electrostatically variable lenses |
Country Status (9)
Country | Link |
---|---|
US (2) | US7413306B2 (en) |
EP (1) | EP1814436A4 (en) |
JP (1) | JP4641317B2 (en) |
KR (1) | KR101053707B1 (en) |
CN (1) | CN101094605A (en) |
AU (1) | AU2005306334B2 (en) |
BR (1) | BRPI0517857A (en) |
CA (1) | CA2587739A1 (en) |
WO (1) | WO2006055893A2 (en) |
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-
2004
- 2004-11-18 US US10/993,409 patent/US7413306B2/en not_active Expired - Fee Related
-
2005
- 2005-11-17 CA CA002587739A patent/CA2587739A1/en not_active Abandoned
- 2005-11-17 AU AU2005306334A patent/AU2005306334B2/en not_active Ceased
- 2005-11-17 BR BRPI0517857-6A patent/BRPI0517857A/en not_active IP Right Cessation
- 2005-11-17 EP EP05848346A patent/EP1814436A4/en not_active Withdrawn
- 2005-11-17 CN CNA2005800456598A patent/CN101094605A/en active Pending
- 2005-11-17 WO PCT/US2005/042099 patent/WO2006055893A2/en active Application Filing
- 2005-11-17 JP JP2007543335A patent/JP4641317B2/en not_active Expired - Fee Related
- 2005-11-17 KR KR1020077011902A patent/KR101053707B1/en not_active IP Right Cessation
-
2008
- 2008-07-15 US US12/173,756 patent/US7826146B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
US7826146B2 (en) | 2010-11-02 |
AU2005306334A1 (en) | 2006-05-26 |
BRPI0517857A (en) | 2008-10-21 |
US20060106426A1 (en) | 2006-05-18 |
KR20070097030A (en) | 2007-10-02 |
WO2006055893A2 (en) | 2006-05-26 |
EP1814436A4 (en) | 2009-08-26 |
JP2008521061A (en) | 2008-06-19 |
WO2006055893A3 (en) | 2007-06-07 |
US20080266521A1 (en) | 2008-10-30 |
WO2006055893A8 (en) | 2007-08-09 |
JP4641317B2 (en) | 2011-03-02 |
EP1814436A2 (en) | 2007-08-08 |
AU2005306334B2 (en) | 2009-10-29 |
KR101053707B1 (en) | 2011-08-02 |
CN101094605A (en) | 2007-12-26 |
US7413306B2 (en) | 2008-08-19 |
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Legal Events
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EEER | Examination request | ||
FZDE | Discontinued |
Effective date: 20141118 |