Diagnostics Using Light TRIZ Cases

Adjacent organic EL emitters and photoelectric receivers shrink biometric sensors while improving light capture, noise rejection, and accuracy.

Feature abstraction and logic-table encoding cut computation and power use in real-time physiological signal monitoring.

An ML model uses optical signal strength and transmit power to estimate skin tone and tune wearable sensing for more consistent data.

Inclined pressure-suppression sections around the light window prevent vessel crushing and air gaps, improving optical biometric signal accuracy.

A neuron-seeded extracellular matrix core reduces foreign body response while improving long-term neural integration and recording specificity.

Inclined rotating pins part hair around the probe, enabling self-attachment and reliable optical contact on the head surface.

Real-time eye tracking in a 3D HMD test adapts stimulus size, contrast, and timing to improve home-based visual hallucination assessment.

Multiple assay wavelengths and a light shield enable fast finger-based BAC measurement while limiting stray light and preserving accuracy.

A detachable inner ring keeps sensor-to-skin distance stable across finger sizes, preserving biological signal quality while reducing size-specific redesign.

Multiple hair sensors and data fusion improve damage assessment accuracy and support personalized treatment recommendations.

A dual-area microneedle patch uses reflected-light correction to reduce adhesion and environmental errors in blood glucose measurement.

A switchable wearable imager combines night vision, sensing, and medical imaging to cut equipment weight and support remote collaboration.

Motion and signal-quality checks trigger transmission mode only under favorable conditions, improving optical vital sign measurement reliability.

Combining multi-wavelength optical sensing with force feedback improves contact state control and raises non-invasive vital sign accuracy.

Induced photoreactions and dual-wavelength reflectance enable non-invasive bilirubin measurement despite skin pigmentation and higher concentration levels.

Distributed sensors on an eccentric single-core fiber track catheter shape and patient conditions while avoiding multi-core cost and reliability issues.

Measured headroom voltage guides LED supply adjustment, cutting power use while maintaining sufficient forward bias in LED circuitry.

A single substrate combines light emission, light detection, and contact electrodes to cut size while limiting signal interference.

A detachable inner ring adjusts sensor position and light intensity to keep biological signal sensitivity stable across finger sizes.

Specular reflection from a deformable diaphragm captures low-frequency body vibrations without constant sensor pressure, improving signal quality.

By tuning LED wavelength across measurement periods, this case builds spectral curves for more accurate noninvasive analysis of glucose, oxygen, and heart rate.

A separated probe and main unit use fiber-coupled combined lasers to enable synchronized multi-wavelength multi-photon imaging with lower optical-path complexity.

Glass hollow domes sealed to wearable housings cut total internal reflection, improve sensing quality, and add durability.

Internal light source calibration uses skin reflection and lock-in detection to offset thermal drift and keep bio-information readings accurate.

A thermochromic optical sensor tracks spectral shifts to measure deep body temperature despite ambient variation and estimate bio-information.

Fluorescence analysis of dialysis fluid enables faster, repeatable patient profiling for transport status and disease progression without extra clinic visits.

Contemporaneous optical and electrical sensing on the same skin contact area improves health measurement correlation while reducing alignment errors.

A shared concave mirror collimates light for skin or hair inspection, cutting lens count, size, cost, glare, and color-rendering issues.

Optimized light radiation and incidence angles improve skin image contrast and resolution, helping resolve texture, wrinkles, spots, and abnormalities.

Video-based red and green channel analysis extracts PPG signals from skin images, enabling remote monitoring without dedicated sensors.

Multiple light paths and PPG modules sample different skin depths to improve wrist blood oxygen and heart rate accuracy.

Integrated PPG, ECG, and impedance sensing on a mobile device enables portable blood pressure and hydration measurement in one user action.

Separate reflectance and fluorescence cameras enable real-time pseudocolor overlay without spectral distortion, improving tumor margin visibility.

Precomputed coarse and fine reflectance curves speed tissue oxygen saturation measurement while preserving accuracy, even without a pulse.

Selective beam deflection enables inclined or horizontal medical imaging views without tilting the imaging unit, reducing access interference.

Precomputed Monte Carlo reflectance curves and iterative fitting improve tissue oxygen saturation accuracy in non-ideal conditions with faster measurement.

Edge-region light blocking in organic photodiodes suppresses delayed carrier response, improving fingerprint and vein detection accuracy.

Sequential reset of grouped optical sensing circuits across frames preserves exposure time and signal frequency for smoother pulse-based biometric detection.

Sequential reset of grouped optical sensing circuits extends light exposure and stabilizes pulse signals for more reliable biometric sensing.

Alternating reference and sensor stripes in a macroporous hydrogel improve implant uniformity, tissue integration, and optical analyte readout.

Multi-wavelength optical checks at an isosbestic wavelength detect sensor drift and warn when analyte calibration is no longer valid.

Specific-wavelength illumination and dual imaging inside an eyeshade block ambient light and quantify low bilirubin levels from scleral reflections.

Integrated infrared imaging and phototherapy assess AV fistula damage in real time while guiding treatment to help extend fistula service life.

Two isosbestic retinal wavelengths and backscattered reflectance enable non-invasive hemoglobin measurement while reducing oxygen-saturation error.

An optically isolated motion reference captures the same scattering noise as PPG, enabling cleaner wearable biometric signals.

Optical sensing in three modes detects biological signals and uses AI-guided light emission to improve focus and noise immunity.

Patients capture ocular images at home for remote physician review, speeding pre-diagnostic screening when specialist access is limited.

An optical adapter couples multiple microscopes to one probe, improving multimodal tissue image alignment while reducing light cross-talk.

Using hemorheological signals from two body regions, this case improves blood pressure accuracy despite height-related hydrostatic effects.

Polarized-light cervical imaging quantifies depolarization to assess pregnancy progression more objectively than practitioner-dependent ultrasound.