Interferometers TRIZ Cases

Acid etching creates a tapered optical waveguide that minimizes friction against the hollow core tube, resolving alignment precision trade-offs.

A compound common-path interferometer uses a monolithic measurement cavity to maintain stable reference surfaces for optical measurements.

External clocking generates uniform-frequency sample signals directly from k-space wavemeters.

A phase pinhole spatial light modulator generates virtual apertures for optical sectioning.

A three-DOF heterodyne grating interferometer measures linear displacements using dual-frequency laser diffraction and interference principles.

Extracting depth-integrated intensity from spectral data creates en-face images without Fourier transformations, reducing computational load.

Positioning multiple emitters to emit beams with angular separations eliminates dichroic mirrors, reducing system complexity and cost.

Saline immersion in a rotating carousel cuvette removes air-lens refraction, enabling high-resolution wavefront measurement without complex null optics.

Circular polarization compensates for grating manufacturing errors, eliminating phase difference shifts and irregular line width effects.

A polarization Mirau interferometer uses coated achromatic quarter-wave retarders to produce orthogonally polarized beams for phase-shifting microscopy.

Galvanometric mirrors adjust scan depth based on detected tissue topography, resolving signal-to-noise ratio drops from fixed windows.

Rotating the probe tip unit adjusts the irradiation angle of measurement light, resolving accuracy loss on inclined surfaces like screw holes.

A Fizeau interferometer objective generates reference waves via its own surface to eliminate phase difference instability caused by separate beam paths.

Aligning the swept source spectrum with the window function reduces signal loss while maintaining sidewall suppression.

Sequentially capturing interferograms with distinct diffraction structures eliminates interference radiation errors in surface shape determination.

Integrating polarization maintaining fiber in the reference arm eliminates bulky controllers, reducing system cost and crosstalk.

A displacement detecting device uses a diffraction grating to split and recombine light beams for optical interference measurement.

An integrated optical coherence tomography probe combines reference and signal arms via a fiber coupler to eliminate mechanical noise from umbilical cables.

Synchronizing a pulsed optical source with the detector array readout rate reduces motion artifacts by shortening effective signal integration time.

Integrating a sample-side polarization beam splitter into the photonic chip reduces optical losses and improves signal-to-noise ratio in OCT systems.

A retro-reflector optical system redirects reflected light beams back into the interferometer path to maintain beam alignment and focus.

Single-mode optical fibers guide light to pinholes, enabling independent focusing in x, y, z directions while excluding mutual interference between channels.

A wavelength-swept laser source splits light into multiple beams for simultaneous target irradiation and interference detection.

Intermediate structures house electrodes to prevent contact, enabling smaller uniform gaps and narrower pass bands without increasing weight.