Repeated reflections between a sheet and reflector amplify light changes, improving detection of minute moisture variations.
Non-periodic volumetric scattering centers encode six pose parameters in one far-field diffraction pattern, reducing reliance on multiple cameras.
Magnetic cell discrimination removes stray light from the optical path, improving centrifugal particle size distribution measurement accuracy.
Continuous stage scanning captures differential interference signals for overlay metrology, avoiding settling delays and reducing measurement time.
Manual analysis of individual cells slows population testing; pooled projections build one 3D refractive-index model for rapid evaluation.
A movable optical standard automates turbidity calibration, reduces fouling from medium contact, and limits manual maintenance.
Darkening filters and photodetectors with different saturation probabilities let lidar sense reflective near-field and low-reflectivity far-field objects together.
Multiple optical channels preserve scattering regions while filtering and separating combined signals for clearer surface-defect detection.
Small fields of view and spatially resolved detection improve local reflectivity measurements on finely structured lithography masks.
High temperatures can weaken optical signals; dual oscillators compare expected and actual timing to support accurate, rapid smoke alarms.
Multispectral absorption analysis inspects lyophilized products non-destructively for active ingredients, moisture, and contamination.
Measure periodic structures across a moving web with variable-angle scatterometry for rapid, non-destructive roll-to-roll monitoring.
Individually mounted emitters and sensors use segmented barriers to limit light leakage and improve measurement accuracy.
Combining TDLAS pore-path sensing with total-path measurement enables fast, non-invasive porosity feedback for inline production.
A change mechanism adjusts the optical path between surface irradiation and scattered-light detection, improving turbidity measurement precision.
Segmented detection separates optical paths in heterogeneous samples, reducing scattering-related noise and improving measurement accuracy.
Uniform irradiation solid angles help quantify incline directions and 3D surface profiles where nonuniform lighting and discontinuities limit direct-light measurement.
Multiple detection distances separate superficial and deep layer signals, improving analyte concentration estimates in non-homogeneous objects.
Multispectral light and absorption spectra enable non-destructive inspection of lyophilized products for moisture, components, and internal defects.
Commodity RFID tags and a vehicle-mounted antenna detect bumps and potholes without line-of-sight or optical sensors.
Exit-light feedback reshapes irradiation wavefronts to limit scattering and improve hemoglobin and oxygen-saturation measurement.
Through-holes in the conveyance support reduce shielding and let more diffusely transmitted light reach the receiver for accurate inspection.
A rotatable hollow sphere switches between predetermined angles, enabling rapid spectral reflectance measurements without replacing the sample.