Projectors TRIZ Cases

Motor back-EMF zero-crossing pulses correct rotation angle bias without extra sensors.

A beam splitting module uses reflective mirrors to project split images onto a windshield.

A head-up display relocates the light-receiving unit into the case to allow easy lid fitting.

A color wheel housing isolates a detecting apparatus from heat via a light transmitting plate, preserving detection accuracy in high-temperature environments.

A transparent holographic display uses segmented diffraction gratings to cast virtual scene images from multiple light sources.

A projection display device uses collimator and condenser lenses to direct laser beams through integrator illumination systems for image projection.

A rotatable drum drive mechanism with a driven sprocket system manages large screen display extension.

An optical anisotropic layer with birefringent films improves contrast while reducing costs and mounting space in liquid crystal displays.

Dynamic temperature control lowers light emission efficiency for dark images, improving contrast ratio without sacrificing overall brightness.

Curved base and conversion surfaces maintain uniform air layer thickness, preventing distortion-induced cooling efficiency losses in optical devices.

Optimized optical adjustment layer thicknesses control light emission to improve extraction efficiency and driving voltage uniformity.

A projection illumination system uses dual excitation beams to enhance optical power through a wavelength conversion element.

An etendue increasing module expands the first light beam to reduce optical power density on a polarization conversion system.

A projection device relocates a light sensor to the imaging module to prevent color point shifting caused by yellowed plastic lenses.

A VECSEL system uses a reflective volume Bragg grating to form an optical cavity and reduce laser linewidth.

Merging a wire grid polarizer with a polarization converter reduces assembly complexity and heat accumulation near liquid crystal devices.

Geometric light combining device merges LED and laser beams to boost brightness while removing costly dichroic filters that waste power.

A micro LED projection device synthesizes full-color light via a dichroic prism, eliminating separate high-current lamps and reducing structural complexity.

A projection screen reflective layer scatters incident light using controlled particle sizes to optimize horizontal viewing angles.

A protective cover arrangement for projectors features a front opening that allows the lens to extend while the body remains stored inside.

A motor vehicle surroundings lighting device projects a base light distribution and a dynamic pictogram onto the ground adjacent to the pivotable door.

A phosphor rotation control unit staggers minimum light emission timing across multiple wheels to reduce image flicker.

A phosphor wheel uses a hollow-box substrate with sealed evaporating coolant to remove heat from the conversion layer.

Inverting projector placement above or below directional screens eliminates viewer shadow reflections.

A mirror system uses blazed gratings to direct light beams away from the aperture.

An adjustment device with an elastic combination plate enables independent lens positioning, resolving cumbersome manual alignment.

Preliminary action switches optical element layer driving mode during current image display to resolve speed versus quality trade-offs.

Calculating infrared signal change rates distinguishes human presence from device heat flow, preventing erroneous eye protection mode activation.

Nesting laser elements reduces the volume of a head-up display light source while maintaining high resolution.

Focusable lens resolves the contradiction between precise aiming point indication and target area illumination.

A single-segment wavelength-transforming device eliminates red phosphor agents to resolve luminance decay at high temperatures.

A negative C-plate optical compensation device uses tilted multilayer films to manage polarization states in liquid crystal displays.

A movable positive power lens adjusts excitation light flux diameter within a projector light source device.

A vehicle-mounted laser projector system uses a diffractive optical element to project visual images onto road surfaces.

A light source apparatus equalizes optical path lengths for excitation light and fluorescence to produce uniform luminous intensity distributions.

Micro-faceted projection screens redirect light toward viewers to eliminate ceiling reflection and remove lenticular lens complexity.

A holding mechanism sets preset distances between optical members to control jointed lens thickness and reduce TV distortion.

A laser projector adjusts beam divergence via an enlarging optical unit to match scanning mirror swing angles.

A light projector uses a beam-steering system to direct outgoing laser beams onto surfaces for pattern generation.

A projection optical system uses aspherical lenses in specific groups to correct aberrations and maintain resolution.

A light transmissive optical element module uses a heat diffuser and thermoelectric device to dissipate thermal energy from the optical component.

A lane departure warning system adjusts internal reference lines based on detected touch operation time to trigger timely audio alerts.

An external driver rotates internal fan blades to cool phosphor wheels, reducing optical engine volume and preventing heat damage.

Replacing rotating mechanisms with static lens arrays reduces speckle noise while minimizing projector size and cost.

A projection lens module uses a single plate with guide pillars and slide assemblies to drive two-dimensional movement.

A beam shaping system homogenizes laser light onto a phosphor element to resolve intensity non-uniformity and alignment precision trade-offs.

Overlapping waveform transitions between sequentially energized single color light sources eliminate dead times and prevent lumen loss during projection.

A projection lens system uses a combined aspherical and freeform surface to project image light from an oblique direction.

A projection lens adjusting module uses a screw fitting member and stop structure to clamp the lens against a base.

A transmissive screen incorporates a light control layer with specific birefringence to manage optical scattering.