Diffraction Gratings TRIZ Cases

Independent diffraction-cell phase control lets one optical element process multiple signals in parallel for faster, lower-power computing.

Air gaps in layered encapsulation preserve refractive index contrast while protecting nanostructured optical devices from mechanical damage.

Combined pupil expander-extractor and recycler gratings improve AR waveguide FOV, light distribution, and 3D viewing comfort.

Using silicon lattice-plane diffraction instead of 2D gratings, this case enables self-traceable sub-nanometric XY displacement measurement.

Electric field design with Gaussian and Bessel Gaussian beam modeling helps a diffractive element hold beam diameter and power over depth.

An annular holding part keeps a thin resin diffraction film flat, improving optical computation accuracy and reducing stray light.

Multi-material metasurfaces in display waveguides redirect light to align accommodative and vergence cues for more natural 3D depth perception.

Parallel-shifted pleat cells smooth curved-surface approximation, cutting Fresnel lens artifacts and light scattering without added material cost.

Discrete etched depth levels and passivation-based trench control make complex phase optical elements easier to replicate with high diffraction efficiency.

A reflective diffraction grating replaces transmissive optics to separate and recombine EUV laser pulses with better cooling and durability.

A folded optical path and nested lens-group retraction shrink zoom camera thickness while preserving wide-angle and zoom imaging.

Oblique mask deposition and selective etching create asymmetric microstructures with higher aspect ratios, better stability, and more efficient diffraction.

A folded optical path and three actuated lens groups enable bright zoom imaging in phone cameras while keeping module height at 6 mm or less.

Micron-scale protrusions on imaging cover glass suppress internal reflection diffraction, improving non-diffracted light transmission and image quality.

A planarized adhesive-bonded structured film enables roll-to-roll waveguide metasurfaces without repeated lithographic nanostructure patterning.

A four-group positive-negative lens layout keeps the second group fixed to suppress zoom aberration variation while supporting compact, high-ratio imaging.

A holding frame around a flexible diffraction film preserves planarity, absorbs stray light, and improves optical computing accuracy.

A switchable grating shifts between transmitted and diffracted light so one 3D camera can keep depth imaging clear at both short and long distances.

Two focusing lens groups move on different paths to cut moving mass and suppress spherical aberration shifts from infinity to close focus.

An interleaved rectangular grating enables 2D pupil replication in AR waveguides, expanding eyebox while reducing rainbow artefacts and size.

A five-group zoom lens balances compact size, wide-angle coverage, and high zoom ratio by coordinating lens-group power and movement to correct aberrations.

Solvent evaporation in an encapsulation coating forms air gaps that raise refractive index contrast, improving eyepiece light transmission and image quality.

Polarization beam splitting and DOE modulation increase structured-light feature point density and 3D recognition accuracy in complex lighting.

Diffractive optics in a pancake HMD fold polarized light paths to keep the headset compact while expanding field of view and reducing chromatic aberration.

Non-flat reflection-suppressing films and refractive index gradients help pillar optical layers guide more light into the photoelectric conversion section.

Anisotropic crystal-plane etching forms precise slanted gratings that shape wavefront divergence for more comfortable AR and VR depth cues.

Periodic waveguide gratings enable narrowband light selection and abnormal-angle reflection control for compact AR combiners with high ambient transmittance.

A rotated sub-wavelength grating MMI splitter boosts birefringence to separate TE and TM modes with compact size, low loss, and simpler fabrication.

A segmented projection lens layout limits front-group lens count to balance weight, preserve back focal length, and maintain image quality.

A folded optical path using polarization films, a quarter-wave plate, and a Fresnel lens cuts VR headset size and weight without harming imaging quality.

A tilted plasma torch and scanning tool form optical gratings with controllable angle and depth, improving photonic component fabrication speed.

Fine structures in a transparent optical layer steer light to different photodiodes, improving dynamic range without sacrificing light use.

A fixed sequence of volume Bragg gratings separates transmit and receive paths by angle and wavelength, reducing terminal size and complexity.

Dual-axis pupil expansion in a near-eye waveguide preserves eye box size and widens field of view without multiple layers.

Separate object-side and image-side focusing lens groups follow different paths to suppress spherical and coma aberration shifts across zoom and focus.

Piezoelectric height tuning lets one diffractive element adapt to multiple wavelengths and focal lengths while reducing separate optical designs.

A low-thermal-conductivity filling layer isolates LiDAR grating structures, reducing thermal crosstalk and improving beam directivity.

Voltage-tuned Bragg grating layers replace bulky Q-switch components to generate stable, short, high-frequency LiDAR pulses.

Heat-blocking trenches or low-conductivity layers isolate adjacent pixels, reducing thermal cross-talk and improving optical scanning accuracy.

Intersecting micro-structure periods scatter and diffract incident light to spread angular energy and reduce visible display sparkles.

An intermediate-index polymer coating over metasurface nanostructures cuts reflections and helps suppress ghost images in AR displays.

Reflective holographic optics fold the light path between partial reflectors, cutting headset bulk and weight while preserving optical performance.