Diffraction Gratings TRIZ Cases

Two moving focusing lens groups with controlled focal-length ratio improve spherical aberration correction from infinity to short-distance focus.

A MEMS deflector paired with a liquid crystal diffraction element widens scan angle without the size, weight, or power burden of gimbals.

Matched interference maxima and refractive index modulation across wavelength-specific gratings keep projection color uniform over viewing angle.

A four-group zoom lens layout cuts focusing mass while varying group spacing to maintain aberration correction across magnification states.

Interleaved phase-shift cells create clear 3D images on both sides of an authentication medium, improving anti-counterfeiting under varied lighting.

Overlapping emission and pupil-enlargement gratings balance optical paths to suppress left-right luminance unevenness in virtual images.

A fixed positive first unit and moving negative second unit balance lens weight with spherical and chromatic aberration correction.

A five-group zoom lens layout controls lens thickness and focal-length ratios to suppress aberration shifts during zooming and focusing.

Meta-atom grating couplers redirect optical signals over waveguides to improve fiber coupling efficiency, bandwidth, and I/O density.

A split first lens group and image-side focusing layout cut lens diameter and movement while preserving wide-angle optical performance.

Different second and third lens group trajectories suppress aberration fluctuation during close focusing while keeping the optical system compact.

Adjacent diffraction surfaces and transmissive reflective surfaces improve HMD image definition while correcting chromatic aberration in compact folded optics.

Laser-fabricated tracks and microlens arrays are embedded in polymer substrates to create durable optical authentication effects without adhesive wear.

Separating LC grating and touch-panel drive frequencies avoids electrode shielding, preserving touch accuracy and display brightness in 3D displays.

Dual focusing groups with different movement paths cut lens weight for faster, quieter autofocus while suppressing spherical aberration.

Pre-formed nanostructures on a bonded structured film avoid repeated lithography, enabling scalable waveguide coupling on larger substrates.

A folded optical path with a reflective grating shortens the spectrometer, improves resolution, and avoids transmission grating thermal issues.

A movable focusing group in the middle lens assembly keeps a zoom lens compact while supporting high magnification, autofocus, and stable aberration control.

Free-space SRDOE relay optics combine virtual and real light with a large eyebox, high FOV, and lower chromatic aberration.

Diffractive slits and patterned light shielding balance private/share viewing modes while preserving front luminance and light transmission.

Controlled focal-length ratios and third-group movement suppress spherical aberration, coma, and field curvature across zoom states.

By removing liquid crystal from an HPDLC grating, this case boosts S- and P-polarized diffraction efficiency for lower-cost waveguide displays.

Solvent evaporation in an encapsulation coating forms air gaps that protect eyepiece structures and reduce reflection for better light transmission.

Negative-order far focus shifts the polychromatic focal position toward the lens, improving light use and reducing hyperopia risk.

Specific refractive power and curvature relationships shorten zoom lens length while correcting wide-angle barrel distortion across the zoom range.

A slit grating creates multiple imaging faces so each eye can focus at aligned depths, improving AR/VR display comfort and image quality.

Periodic waveguide grating changes enable narrowband response and abnormal-angle reflection while preserving ambient-light transmission in AR optics.

Two rear focusing lens groups follow different optical-axis trajectories to limit angle-of-view shift during focusing and stabilize zoom imaging.

Sharp multi-band metasurface filtering separates color channels and polarization to reduce 3D ghosting, color distortion, and eye fatigue.