Refractometers TRIZ Cases

Voltage-driven electroactive polymer layers deform lenses for AR/VR optics, improving actuation efficiency while preserving optical performance.

Pinhole plates at pupil-conjugate positions isolate convergence from distance focus cues, enabling precise binocular refractive measurement.

Fundus image resolution sequencing builds a refractive matrix for rapid, accurate full-field eye mapping beyond horizontal and vertical measurements.

Directional optotypes aligned to the cylinder axis measure astigmatic visual acuity accurately without cumbersome cylinder lens correction.

Tilting and retracting the examination head during left-right eye switching preserves alignment accuracy while avoiding nose interference.

A predictive vision model links accommodation, convergence, and visual performance to assess corrective lens suitability more reliably.

Dynamic rotating stimuli in a VR headset enable home astigmatism assessment by tracking pupil response and head orientation.

A prism-based ophthalmic lens corrects visual-optical axis misalignment to keep laser spot diameter, radiance, and fluence uniform without lens tilting.

A correcting, diverging, and collecting lens setup expands IOL test field of view while preserving resolution and contrast.

Two filtered light rays enter the eye simultaneously, letting retinal spot coincidence measure refraction accurately without memorizing beam positions.

Combining past lens data, current visual impression, and wearer needs helps calculate a progressive lens power distribution that is easier to select.

A tunable lens rechecks measured refraction by nullifying vision error, confirming accuracy without time-consuming recalibration.

Real-time pupil and gaze monitoring improves hyperopia and presbyopia screening accuracy without eye drops, reducing test time.

Adjusting binocular optotype brightness and convergence reveals visual line direction changes, enabling ocular deviation detection even without heterophoria.

Dynamic focus adjustment helps distinguish fundus-reflected light from internal reflections, improving eye measurement accuracy under cataract-like turbidity.