Refractometers TRIZ Cases

An aperture filters retinal scatter to measure beam angular size, reducing device complexity while maintaining measurement precision.

An ophthalmic apparatus calculates corrected wavefront aberration data to generate vision quality evaluation indices.

A control unit defines a transparent scene zone within the superimposition area to adjust luminance and colorimetry for visual test images.

Continuous measurement without alignment wait increases reliable value count for restless subjects while reducing total examination time.

Ophthalmic measurement device compares unassisted and assisted eye areas to detect divergence caused by eyelid distortion or tear film drying.

Sequential imaging of both eyes determines refractive aberrations, resolving inaccuracy from static measurements.

Controller monitors objective refractive characteristics during subjective red-green testing to detect accommodation intervention.

A phoropter uses a partially reflecting mirror to capture and display real-time eye images for remote optical unit adjustment.

Optimizing objective lens diameter balances OCT scan range and keratometry precision in ophthalmologic apparatuses.

Software determines accommodation and vergence by tracking eye movements, eliminating subjective assessments to improve myopia control accuracy.

Acquiring eye position information determines binocular open state suitability, preventing inaccurate measurements from visual line deviation.

Smartphone-based optical projection measures presbyopia by creating virtual near-vision images on the retina, resolving trial-and-error inaccuracy.

Dynamic optical axis alignment tracks natural gaze lowering to resolve precision losses in multifocal vision compensation measurements.