Picture Reproducers Using Projection Devices TRIZ Cases

See how identifier-based utensil tracking coordinates binaural audio, visual projection, and ha

An underbody projector distorts images for the observer's viewing angle, making vehicle ground displays readable in shadow and bright daylight.

A twisted liquid crystal retarder with a spatially varying electric field evens off-axis luminance while preserving privacy and on-axis clarity.

Adjusts road image position and size by driver seat height to keep the projection out of view while preserving pedestrian notification.

Door-state sensing triggers dynamic ground projection only when needed, conserving vehicle battery power while adding varied courtesy lighting effects.

Synchronized projected images follow the ride vehicle to guide guest boarding and unloading with less operator intervention and clearer visibility.

Voltage-drop sensing lets pulsed laser displays predict thermal drift and adjust drive current to keep brightness and color stable.

Digital filtering pre-corrects matrix headlamp setpoints to offset optical aberrations, sharpening projected contours without more complex optics.

Sensors and vehicle controls reposition the projector and tune brightness, contrast, and focus for clear outdoor images on varied surfaces.

A dual-supply laser circuit uses positive and negative rails to achieve high laser voltage while reducing level shifting, delay, and power use.

Folded projection optics redirect multi-source light at a reference angle to cut HUD protrusion and suppress luminance unevenness.

Collimated polarization recycling aligns split sub-beams in one pass, cutting light loss and power use in LCOS display illumination.

Intermittent image emission and screen transmittance switching cut projection power use while preserving perceived image visibility.

A wearable projector maps virtual controls onto a surface or body part, enabling gesture or voice input for safer in-vehicle settings control.

Reflected-light sensing lets an in-cabin projector detect obstacles in the beam path and shut off high-intensity light to protect users.

A folded optical path with a shaped reflective member keeps HUD projection compact while improving luminance uniformity for larger virtual images.

Sequentially projecting processed sub-images localizes quantization noise in phase-based displays, improving contrast and image clarity.

Two projection paths combine a concave mirror and self-luminous layer to create large virtual images at different perceived depths without enlarging the HUD.

A folded lens and reflector layout directs multiple light sources at a fixed incident angle to cut HUD backlight protrusion and suppress luminance unevenness.

Scattered-light monitoring lets a photodiode track combined laser diode output without beam splitters, reducing light loss and assembly complexity.

A phase-locked Gerchberg-Saxton variant cuts iterations and unwanted phase rotation while improving optical focus array uniformity.

A single SoC synchronizes galvanometer motion and laser control to eliminate cable crosstalk, cut instruction errors, and improve real-time scanning.

Multiple D/A converters shape drive current to match luminance commands more linearly, improving image reproducibility in display systems.

Sensor-based color feedback compares projected and target image properties to correct attraction alignment and keep projection mapping accurate.

A stacked optical assembly with an emissive display cuts ghost images and chromatic aberrations while keeping near-eye projectors compact and light.

A piezo-driven scanning fiber with polarization optics creates compact multi-depth volumetric AR images that fit within eyeglass frames.

Scenario files link clipped image data and control signals so multiple projectors can align overlapping edges with less manual setup.

Shape-specific correction interfaces help projectors match screens or walls faster, reducing distortion and improving image alignment.

A detachable rotatable projector adjusts image angle, rotation, and shape from terminal state to improve shared viewing beyond a small display.

Iterative phase holograms shift noise into bright regions and reduce dark-region artifacts, improving projector contrast without wasting light.

An oblique coupling-in surface and transparent wedge let near-eye waveguides place the projector more flexibly while limiting chromatic aberration.

Spatially varying phase modulation steers projection light in real time to match changing screen position, orientation, and shape.

A two-stage reference image process keeps projection within the screen area, improving boundary detection and image adjustment accuracy.

Dual enlarged and thumbnail views preserve grid-point context while improving selection precision for projector image correction on uneven surfaces.

A transparent plate and thermoelectric cooler protect the variable transmittance array from high-power and focused-sunlight heating.

Multiple projected patterns and edge overlays improve projection-surface feature detection under reflected light and changing ambient conditions.

Superimposed edge indications from different projected patterns help users compare feature extraction results and improve projection surface detection accuracy.

Camera-based brightness comparison adjusts projector overlap only when needed, keeping overlap and non-overlap regions visually uniform.

Environmental image capture lets a connected device detect brightness conditions and switch projector modes automatically without OSD menu navigation.

Pre-acquired image shape data enables automatic geometric correction after optical shift, reducing manual projector alignment time.

Gradation data derived from video regions lets a projector drive wireless lighting without a dedicated MPU, simplifying synchronized color and brightness control.

Feature-point detection and projective transformation keep a projected image aligned while reducing manual projector shape adjustment time.

Sensors adjust projector brightness, color temperature, and color to match ambient light and screen size for better viewing and lower energy use.

Automatic player negotiation between source and destination devices enables HD video projection with less manual setup and smoother control.

A fixing ring replaces glue to secure the wavelength conversion member, improving heat dissipation, preventing peeling, and preserving projection quality.

A control device merges captured and app images, then applies touch operations consistently across sources for accurate projected display.

A database maps image quality settings between projectors, enabling consistent output across different manufacturers and models.

Timed light emission after liquid crystal response stabilizes projector illuminance, reducing uneven brightness and color tone errors.

Vibrating the light homogenizer lens arrays helps a laser projector suppress speckle noise while maintaining uniform illumination and image quality.

A light-transmissive screen and luminance control improve aerial image contrast while hiding internal components and reducing postcard effects.

Partitioned backlighting aligned with keystone-corrected image regions improves contrast, black levels, brightness uniformity, and power use.

A display system detects human movement speed to determine image content and projection timing.