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US 10,952,607 B2Granted
Miniaturized mobile, low cost optical coherence tomography system for home based ophthalmic applications
AssigneeAcucela Inc.
InventorsLukas Scheibler, Matthias Pfister, Urban Schnell, Stefan Troller, Ryo Kubota
Life of this patent
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Abstract
Improved optical coherence tomography systems and methods to measure thickness of the retina are presented. The systems may be compact, handheld, provide in-home monitoring, allow the patient to measure himself or herself, and be robust enough to be dropped while still measuring the retina reliably.
Claims23
A compact optical coherence tomography (OCT) system to measure a retinal thickness of a retina, the compact OCT system comprising:
- a detector;
- a light source configured to generate a light beam comprising a plurality of wavelengths;
- a plurality of optical elements coupled to the light source to direct the beam into an eye and generate an interference signal at the detector;
- and
- circuitry coupled to the detector and the light source to determine the retinal thickness in response to the signal;
- wherein the light source comprises a first VCSEL and a second VCSEL and the light beam comprises light from the first VCSEL and the second VCSEL;
- and
- wherein a repeatability between successive measurements of the retina is within 25 μm and a reproducibility between measurements over a longer time of at least a week is within 25 μm.
5 more elements
Dependencies are inferred from the claim text.