Wide field of view, high optical power disposable retina viewing system
AssigneeAlcon Inc.
InventorsValentina Doushkina, Lingfeng Yu
Life of this patent
Estimating the term…
Abstract
Systems and methods for high-resolution, wide-angle viewing of a retina of an eye using an ophthalmic microscope that can view a high-resolution image of a retina formed using a wide field of view optical system. A wide field of view optical system can involve a first lens having a diffractive surface on at least one surface and a second lens housing in a shared housing. A wide field of view optical system can involve one or more lens formed from an optical grade polymer and manufactured at a cost that allows the lens to be disposable.
Claims20
A system for high-resolution, wide-angle viewing of a retina comprising:
- an ophthalmic microscope having a lens arrangement for viewing images formed from a beam of light reflected from an eye;
- a front lens attachment configured to alternatively position a lens holder into and out of the beam of light;
- a wide field of view optical system including:
- a first lens having a diffractive surface on at least one surface of the first lens;
- a second lens, wherein the first lens and second lens combine to form a substantially achromatic doublet;
- and
- a shared housing configured to house the first lens and the second lens and configured to couple with the lens holder such that, when the lens holder is positioned in the beam of light, the first lens and the second lens are positioned coaxially with the beam of light and allow the ophthalmic microscope to view a high-resolution image of the retina of the eye.
A method of high-resolution, wide-angle viewing of a retina comprising:
- positioning a lens arrangement of an ophthalmic microscope to observe a beam of light reflected from an eye;
- coupling a wide field of view optical system with a front lens attachment that is configured to alternatively position the wide field of view optical system into and out of the beam of light, the wide field of view optical system including:
- a first lens having a diffractive surface on at least one surface of the first lens;
- a second lens, wherein the first lens and second lens combine to form a substantially achromatic doublet;
- and
- a shared housing containing the first lens and the second lens;
- articulating the front lens attachment to position the shared housing into the beam of light, such that the first lens and the second lens are positioned coaxially with the beam of light;
- focusing the ophthalmic microscope to view a high-resolution image of the retina of the eye that is resolved by the wide field of view optical system.
A lens apparatus comprising:
- a first lens having a diffractive surface on at least one surface of the first lens;
- a second lens, wherein the first lens and second lens combine to form a wide field of view optical system that is a substantially achromatic doublet;
- and
- a shared housing configured to house the wide field of view optical system, such that the first lens and the second lens are coaxially aligned when placed in a beam of light of an ophthalmic microscope, thereby allowing the ophthalmic microscope to view a high-resolution image of a retina of an eye.
Dependencies are inferred from the claim text.