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US 2026/0248388 A1Published application
Eye examination device and method for eye examination
AssigneeHooke Eye Exam Solutions Ltd.
InventorsTal Zvi MARKUS, Eyal CAPUA
Life of this patent
Estimating the term…
Abstract
Eye examination device combining objective and subjective optical examination subsystems, wherein the subjective exam is based on retinal scanning display technology and includes optical elements shared in common with the optical system for the objective exam. Potentially assists performing a fast visual acuity and/or refractive error exam, both objective and subjective, in a compact, simple, and potentially cost-efficient system. Exam results may provide a suitable basis for an eyeglasses and/or contact lens prescription.
Claims21
1-70. (canceled)
An image display device, comprising:
- an optical pathway configured to project an image onto a retina of an eye, and including cylindrical lenses which introduce varying cylindrical optical power and a varying cylindrical optical axis to beams impinging on the retina to produce the image;
- wherein the cylindrical lenses comprise a first cylinder correction lens group and a second cylinder correction lens group, each group comprising at least one cylindrical lens;
- and
- wherein the first and second cylinder correction lens groups:
- have cylindrical optical powers of opposite signs;
- adjust together to introduce the varying cylindrical axis while maintaining a predetermined relative alignment of their respective cylindrical axes;
- and
- adjust by changing their distance to each other to introduce the varying cylindrical optical power.
5 more elements
Dependencies are inferred from the claim text.