OPTOMED PLC Ophthalmic Apparatus Alignment Method
Summary
USPTO granted Patent US12605068B2 to OPTOMED PLC for an ophthalmic apparatus with an alignment arrangement that outputs converging alignment light rays forming a predetermined reflection pattern on a target plane. The apparatus includes a communication interface that outputs reflection pattern information from the posterior surface of the eye's crystalline lens to guide or control user positioning by finding the working distance where the predetermined pattern shape appears on the posterior surface.
What changed
USPTO granted Patent US12605068B2 to OPTOMED PLC, inventors Ilkka Alasaarela and Matti Pohjoisaho, for an ophthalmic apparatus featuring an alignment arrangement with converging alignment light rays that form a predetermined reflection pattern on a target plane. The patent covers the apparatus's ability to detect changes in the reflection pattern outside the target plane and use a communication interface to output information about the reflection pattern from the posterior crystalline lens surface to guide users to the correct working distance.
Manufacturers of ophthalmic diagnostic equipment should review this patent for potential licensing implications or to assess freedom to operate in eye-alignment measurement technology. The patent's 11 claims cover specific technical implementations of optical alignment using pattern convergence and posterior lens surface detection.
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Apr 22, 2026GovPing captured this document from the original source. If the source has since changed or been removed, this is the text as it existed at that time.
Ophthalmic apparatus and alignment method
Grant US12605068B2 Kind: B2 Apr 21, 2026
Assignee
OPTOMED PLC
Inventors
Ilkka Alasaarela, Matti Pohjoisaho
Abstract
An ophthalmic apparatus comprises an alignment arrangement, which outputs rays of alignment light of a first alignment pattern in a converging manner toward a first target plane, forms a predetermined reflection pattern of the first alignment pattern on said first target plane based on the convergence, causes the rays of the alignment light to have an alignment light waist zone that includes the first target plane based on the convergence, causes a reflection pattern of the first alignment pattern outside the first target plane to deviate from the predetermined reflection pattern based on the convergence. A communication interface of the ophthalmic apparatus outputs information on the reflection pattern of the first alignment pattern reflected from said a posterior surface of the crystalline lens of the eye when the ophthalmic apparatus is directed toward the eye for guiding and/or controlling a user based on the reflection pattern of the first alignment pattern that is varying with the position of the posterior surface of the crystalline lens on said posterior surface to find the working distance from the eye where the predetermined shape of the first alignment pattern is on said posterior surface.
CPC Classifications
A61B 3/152 A61B 3/12 A61B 3/0016 A61B 3/0041 A61B 3/0083 A61B 3/1216 A61B 3/1225
Filing Date
2023-06-09
Application No.
18331982
Claims
11
Mentioned entities
Parties
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