Interferometers TRIZ Cases

Integrated mirrors split optical signals for on-chip interference with photodetectors, eliminating mechanical scanning in OCT systems.

Variable step heights in scanning plate grating fields optimize diffraction efficiency for single-wavelength optical position measuring devices.

A diffractive optical angle sensor stabilizes combined light overlap at the receiver to maintain measurement precision.

Silicon nitride microresonators generate 1-micron frequency combs to achieve 5.6 μm axial resolution in biological tissue imaging.

A triple reflection end reflector generates lateral shear between reference and object beams to create spatial interferograms.

Polarization and frequency multiplexing generates a reference signal that resolves phase ambiguity in multi-path interferometers.

A confocal Fabry-Perot interferometer uses a folding reflective surface to resolve mirror parallelism constraints, enabling sub-nanometer positioning accuracy.

An optical interferometer measures blade tip clearance using interference patterns generated by reflected light.

A laser interferometric system detects surface motion by introducing a small frequency shift between reference and object beams.

Spectral analysis of Fabry-Perot fringes determines layer composition and orientation, preventing manufacturing defects from upside-down samples.

A switchable objective lens projects a virtual pivot point to enable precise optical coherence tomography alignment.

Interfering scene photons with squeezed source beams reduces statistical variance in the output signal.

A tomographic imaging method corrects displacement distributions across multiple A-scans to align eye images.

Dual-channel heterodyne interferometer measures relative displacement between opposing moving targets using polarization beam splitters.

Active feedback loops compensate for environmental disturbances by adjusting piezoelectric actuators, eliminating the need for vacuum tunnel infrastructure.

Dual tunable lasers segment wavelength scanning to resolve the trade-off between high spatial resolution and slow scan rates in optical coherence tomography.

Rotating path length variation in reference arms separates front and rear surface interference signals, eliminating complex optical adjustments.

A heterodyne grating measurement system uses orthogonal polarized light to generate beat frequency signals for four-fold optical subdivision.

Optical rotation angle measuring device calculates displacement via interference patterns, resolving complexity trade-offs in sub-micron machining.

Confocal optics separate path adjustment from focusing to maintain stable interference light and prevent image quality deterioration.

An optical measurement apparatus acquires relationship data between light intensity and specimen size to determine cell dimensions.

Segmented receiver architecture processes magnitude, phase, and polarization data to simplify SS-OCT system complexity.

An optical interferometric displacement detecting device replaces mechanical actuators with light interference patterns to eliminate response frequency limits.

A reduced form factor optical coherence tomography probe uses a compound lens system to increase numerical aperture and focus light for high transverse resolution.

A phase-shift interferometer uses short coherence light and an adjustable delay path to capture interference fringes for shape measurement.

A partially nulling optical metrology system uses reconfigurable mirrors to measure large freeform surfaces via subaperture stitching.

Illumination module segments pupil plane into discrete regions to produce high-contrast multi-fringe interference patterns.

Beam traps redirect optical feedback away from the laser cavity to stabilize frequency and reduce measurement errors in coordinate measuring machines.

Periodic beam interruption separates spurious beat notes from weak return signals, enabling accurate satellite displacement measurements beyond one kilometer.

Nested mirrors multiply wavefronts to enable compact, high-precision optical measurements independent of measurement direction.

Calibrating phase differences via polarization splitting corrects errors from air fluctuations and manufacturing variations in Fizeau interferometers.

A line-field OCT system uses a rotator-derotator mechanism to perform radial scanning for high-resolution imaging.

Segmented mirror surfaces enable unlimited tilt range in compact interferometers by separating optical paths without additional circulators.

Segmenting interference fringe signals into timing segments validates parameter consistency, rejecting non-periodic noise from mixed scattering mechanisms.

A ranging sensor uses multiple light receiving channels to propagate reference light alongside measurement light for interference detection.

Reference position adjustment section detects sheath interference signals to set optical tomographic image reference positions.

Thin retarders replace glass cover plates to reduce interferometer physical volume and cyclic errors.

Off-axis aperture filters light beams to create multiple interference patterns, resolving high line density limits in single-image lateral scanning.

An active optical interference system generates enhanced beams by mixing received photon streams with source photons.

Detector configuration minimizes differential phase shifts between reference and object beams to eliminate measurement errors from beam splitter surfaces.

A polarization-sensitive optical coherence tomography system uses single mode fibers and polarization controllers to manage light beam states.

A short coherence length interferometer uses a wavelength disperser to create chromatic dispersion in the reference path.

Merging local oscillator and signal paths into one fiber reduces circuit complexity while counter-chirp waveforms cancel environmental path length variations.

Electronic phase modulation replaces mechanical scanning to eliminate vibration noise while maintaining ultra-high axial resolution and imaging speed.

A handheld optical coherence tomography system uses a position sensor to align the interferometer with the patient's eye for retinal thickness measurement.

A polarization-sensitive optical coherence tomography apparatus uses passive optical elements to generate measurement lights with different polarization states.

A five-degree-of-freedom heterodyne grating interferometry system measures linear displacements and rotational angles using optical fiber bundles.