Diffraction Gratings TRIZ Cases

Splitting the rear group into two independently moving focus groups reduces angle-of-view variation while the front group stays fixed.

Low-aspect-ratio plasmonic meta-atoms fold the optical path through a reflective metalens, supporting NIL fabrication and sub-100-micron focusing.

Diffractive elements on the transparent lid redirect spurious light, reducing artefactual images without added coating complexity.

To keep wide-angle imaging compact, the lens holds the first group stationary and moves the second group to speed focusing and correct aberrations.

Thermoelectric layers use the Peltier effect to manage heat between pixels, stabilizing refractive index changes for accurate beam steering.

Different-wavelength infrared sources and a diffractive optical element separate reflected light for accurate eye-information detection.

Neutralized ion beam etching reduces charging effects, damage, and distortion while producing precise blazed and diffractive gratings for optical waveguides.

Non-rectilinear isolines arrange waveguides and electrodes into aperiodic emission points, increasing density while reducing diffraction and improving contrast.

High-index negative lenses and a controlled focusing-group ratio help reduce lens diameter, weight, and movement while correcting aberrations.

See how a fixed first lens unit with segmented positive and negative elements reduces weight while correcting spherical and chromatic aberrations.

Voltage-driven refractive-index changes steer light through a photonic crystal waveguide for fast, wide-angle scanning in a compact element.

Interleaved emitting regions and gaps can lower LiDAR beam power density; a light modulator combines multiple laser beams to reduce those gaps.

A sub-wavelength diffractive element applies position-dependent wavefront correction while preserving LCOS phase control for wavelength-selective switching.

A fixed front group and segmented lens groups help preserve centroid position while maintaining optical performance across magnification changes.

Focal-length constraints distribute refractive power across lens groups to correct spherical, coma, and field-curvature aberrations during zooming.

An intermediate image separates magnification and relay optics, enabling wide-angle projection with smaller lenses and a lighter zoom mechanism.

A cam barrel and interlocking member move lens groups and withdraw a conversion lens, switching focal-length ranges without a dedicated actuator.

Delayed optical signals and individually set diffraction microcells enable arithmetic processing of intensity distributions that change over time.