Light field vision testing device, adjusted pixel rendering method therefor, and vision testing system and method using same
AssigneeEvolution Optiks Limited
InventorsDaniel GOTSCH, Guillaume LUSSIER, Matej GOC, Yaiza GARCIA, Raul MIHALI
Life of this patent
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Abstract
Described are various embodiments of a light field vision testing device, adjusted pixel rendering method and computer-readable medium therefor, and vision testing system and method using same. In one embodiment, a device or computer-implemented method is provided to dynamically adjust user perception of an input image to be rendered via a set of digital display pixels and a corresponding array of light field shaping elements until an optimal visual acuity level is identified.
Claims25
1-42. (canceled)
A subjective eye test device comprising:
- an array of digital display pixels;
- a corresponding array of light field shaping elements (LFSEs) shaping a light field emanating from said pixels toward a user pupil location;
- and
- a hardware processor operable on pixel data for a defined optotype to output adjusted optotype pixel data to be rendered via said LFSEs to dynamically adjust user perception at the user pupil location of said defined optotype as rendered therethrough by:
- digitally associating with a given pixel, given a corresponding LFSE and the user pupil location, an adjusted optotype pixel value designated for an adjusted image location set for a designated vision correction parameter associated with a given visual acuity level;
- rendering each said given pixel according to said adjusted optotype pixel value, thereby rendering a perceptively adjusted version of said defined optotype viewable at the user pupil location that at least partially accommodates said given visual acuity level;
- and
- adjusting said designated vision correction parameter to accommodate for a distinct visual acuity level until an optimal visual acuity level is identified.
A computer-implemented subjective eye test method, automatically implemented by one or more digital processors, the method comprising:
- setting a designated vision correction parameter associated with a given visual acuity level;
- adjusting user perception of a defined optotype rendered by an array of digital display pixels via a corresponding array of light field shaping elements (LFSE) to at least partially accommodate said given visual acuity level by:
- digitally associating with a given pixel, given a corresponding LFSE and a user pupil location, an adjusted optotype pixel value designated for an adjusted image location set for said designated vision correction parameter;
- and
- rendering each said given pixel according to said adjusted pixel value, thereby rendering a perceptively adjusted version of said defined optotype viewable at the user pupil location that at least partially accommodates said given visual acuity level;
- and
- adjusting said designated vision correction parameter to accommodate for a distinct visual acuity level until an optimal visual acuity level is identified.
A non-transitory computer-readable medium comprising digital instructions to be executed by one or more digital processors to digitally implement a subjective eye test, by:
- setting a designated vision correction parameter associated with a given visual acuity level;
- adjusting user perception of a defined optotype rendered by an array of digital display pixels via a corresponding array of light field shaping elements (LFSE) to at least partially accommodate said given visual acuity level by:
- digitally associating with a given pixel, given a corresponding LFSE and a user pupil location, an adjusted optotype pixel value designated for an adjusted image location set for said designated vision correction parameter;
- and
- rendering each said given pixel according to said adjusted pixel value, thereby rendering a perceptively adjusted version of said defined optotype viewable at the user pupil location that at least partially accommodates said given visual acuity level;
- and
- adjusting said designated vision correction parameter to accommodate for a distinct visual acuity level until an optimal visual acuity level is identified.
Dependencies are inferred from the claim text.