Multifocal diffractive ophthalmic lenses
A lens according to the invention has diffractive power and two primary foci, where one focus is associated with the first diffractive order and one with the second diffractive order.
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| Main Authors | , |
|---|---|
| Format | Patent |
| Language | English French German |
| Published |
12.02.1992
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| Subjects | |
| Online Access | Get full text |
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| Abstract | A lens according to the invention has diffractive power and two primary foci, where one focus is associated with the first diffractive order and one with the second diffractive order. |
|---|---|
| AbstractList | A lens according to the invention has diffractive power and two primary foci, where one focus is associated with the first diffractive order and one with the second diffractive order. |
| Author | FUTHEY, JOHN A SIMPSON, MICHAEL J |
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| Discipline | Medicine Chemistry Sciences Physics |
| DocumentTitleAlternate | Lentille multifocale ophthalmique à diffraction. Multifokale ophthalmische Diffraktionslinse. |
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| Notes | Application Number: EP19910307213 |
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| PublicationDate | 19920212 |
| PublicationDateYYYYMMDD | 1992-02-12 |
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| PublicationDecade | 1990 |
| PublicationYear | 1992 |
| RelatedCompanies | MINNESOTA MINING AND MANUFACTURING COMPANY |
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| Snippet | A lens according to the invention has diffractive power and two primary foci, where one focus is associated with the first diffractive order and one with the... |
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| SubjectTerms | BANDAGES, DRESSINGS OR ABSORBENT PADS CONTACT LENSES DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF,TUBULAR STRUCTURES OF THE BODY, E.G. STENTS FILTERS IMPLANTABLE INTO BLOOD VESSELS FIRST-AID KITS FOMENTATION HUMAN NECESSITIES HYGIENE MEDICAL OR VETERINARY SCIENCE OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES PHYSICS PROSTHESES SPECTACLES SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURESAS SPECTACLES TREATMENT OR PROTECTION OF EYES OR EARS |
| Title | Multifocal diffractive ophthalmic lenses |
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