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1. (WO2011099001) MULTI-FOCAL LENS
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2011/099001 International Application No.: PCT/IL2011/000140
Publication Date: 18.08.2011 International Filing Date: 09.02.2011
IPC:
A61F 2/16 (2006.01) ,G02B 3/08 (2006.01) ,G02B 3/10 (2006.01) ,G02C 7/04 (2006.01) ,G02C 7/06 (2006.01) ,G02B 27/00 (2006.01) ,G02B 5/18 (2006.01)
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
F
FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
2
Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
02
Prostheses implantable into the body
14
Eye parts, e.g. lenses, corneal implants; Artificial eyes
16
Intraocular lenses
G PHYSICS
02
OPTICS
B
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
3
Simple or compound lenses
02
with non-spherical faces
08
with discontinuous faces, e.g. Fresnel lens
G PHYSICS
02
OPTICS
B
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
3
Simple or compound lenses
10
Bifocal lenses; Multifocal lenses
G PHYSICS
02
OPTICS
C
SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
7
Optical parts
02
Lenses; Lens systems
04
Contact lenses for the eyes
G PHYSICS
02
OPTICS
C
SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
7
Optical parts
02
Lenses; Lens systems
06
bifocal; multifocal
G PHYSICS
02
OPTICS
B
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
27
Other optical systems; Other optical apparatus
G PHYSICS
02
OPTICS
B
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
5
Optical elements other than lenses
18
Diffracting gratings
Applicants:
ZALEVSKY, Zeev [IL/IL]; IL (UsOnly)
ZLOTNIK, Alex [IL/IL]; IL (UsOnly)
BEN-YAISH, Shai [IL/IL]; IL (UsOnly)
LIMON, Ofer [IL/IL]; IL (UsOnly)
RAVEH, Ido [IL/IL]; IL (UsOnly)
XCEED IMAGING LTD. [IL/IL]; P.O.B. 4201 1 Hermon Street 48560 Rosh Haayin, IL (AllExceptUS)
Inventors:
ZALEVSKY, Zeev; IL
ZLOTNIK, Alex; IL
BEN-YAISH, Shai; IL
LIMON, Ofer; IL
RAVEH, Ido; IL
Agent:
REINHOLD COHN AND PARTNERS; P.o.b. 13239 61131 Tel-Aviv, IL
Priority Data:
61/302,58809.02.2010US
Title (EN) MULTI-FOCAL LENS
(FR) LENTILLE MULTIFOCALE
Abstract:
(EN) An imaging lens structure and method of imaging are presented. The imaging lens structure comprising a lens region defining an effective aperture of the lens structure. The lens region comprises an arrangement of lens zones distributed within the lens region and comprising zones of at least two different optical functions differently affecting light passing therethrough. The zones of at least two different optical functions are arranged in an interlaced fashion along said lens region corresponding to a surface relief of the lens region such that adjacent lens zones of different optical functions are spaced apart from one another along an optical axis of the lens structure a distance larger than a coherence length of light at least one spectral range for which said lens structure is designed. In another embodiment the zones are arranged in a disordered fashion, and the different optical functions are different focal lengths. In a further alternative embodiment, the lens comprises a plurality of angular segments of at least two different focal lengths arranged in a radial symmetry, and a phase coder comprising at least two phase coding patterns.
(FR) Cette invention concerne une structure de lentille d'imagerie et un procédé d'imagerie. La structure de lentille d'imagerie selon l'invention comprend une région de lentille définissant une ouverture effective de la structure de lentille. La région de lentille est constituée par un agencement de zones de lentille réparties dans la région de lentille et comprenant des zones ayant au moins deux fonctions optiques différentes qui affectent différemment la lumière qui les traverse. Les zones ayant au moins deux fonctions optiques différentes sont agencées en mode entrelacement le long de ladite région de lentille correspondant à un relief superficiel de la région de lentille de façon que des zones de lentille adjacentes ayant des fonctions optiques différentes soient espacées l'une de l'autre sur l'axe optique de la structure de lentille d'une distance supérieure à la longueur de cohérence de la lumière dans au moins une des plages spectrales pour laquelle ladite structure de lentille est conçue. Dans un autre mode de réalisation, les zones sont agencées en mode non ordonné, et les fonctions optiques différentes sont des longueurs focales différentes. Dans un autre mode de réalisation encore, la lentille comprend une pluralité de segments angulaires ayant au moins deux longueurs focales différentes en symétrie radiale, et un codeur de phase comprenant au moins deux motifs de codage de phase.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PE, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)