Projectors TRIZ Cases
- Phosphor Wheel Partial Reflective Coating Light Convergence
A phosphor wheel uses a partial reflective coating on an annular phosphor layer to redirect excitation light for improved optical concentration.
- Projection Device Local Dimming Light Valve Contrast
A projection device uses multiple light-emitting assemblies to form independent light spots on a light valve for localized illumination control.
- Projector Cooling via Heat Pipe and Peltier Device
A projector cooling device uses a heat pipe to transfer thermal energy from a Peltier element to a heat sink.
- Projection System Refractive Index Matching Liquid Medium
A projection system emits light through a first medium into a second medium with a different refractive index to form an image.
- Single Axial Fan Cooling System for Compact Projection Lamp Modules
Axial fan unit directs airflow through a flow-guiding duct to cool lamp modules in projection apparatuses.
- Post-scan optics for infinite focus projector distortion
Combining post-scan correction with beam expansion resolves the contradiction between distortion correction and infinite focus maintenance.
- Angle Diversity Speckle Reduction in Laser Spot Displays
A double-sided mirror divides a laser beam into sub-beams focused at different angles to decorrelate speckle patterns.
- Light Source Module for Optical Projection Device
Integrated optical units process multiple light-emitting units into combined beams, reducing dichroic mirror count and volume in laser projection devices.
- In-Vehicle Image Display Light Guiding Plates for Crosstalk Reduction
Separate light guiding plates direct specific fluxes to distinct observers, eliminating crosstalk and uneven illumination in multi-viewer displays.
- Prism Architecture for Compact Projection Back Working Distance
A prism architecture separates and combines light using dichroic layers to minimize back working distance in projection systems.
- Vehicle HUD Shielding Detection and Notification Control
A projection display device detects image light shielded by an operator's body to trigger immediate visual or auditory alerts.
- Hybrid Illumination System Using Wavelength-Selective Mirror
Replacing dichroic coatings with a wavelength-selective mirror allows total internal reflection of laser light, maintaining brightness while reducing volume.
- Light Source Device Segmentation for Polarization Uniformity
A light source device segments polarization conversion across multiple split elements to emit linearly polarized colored light beams.
- Projection System Remote Monitoring and Self-Protection
Remote devices analyze sensed data to generate command signals that trigger self-protection procedures, preventing failures during critical display operations.
- Rotating Refractive Actuator for Projector Pixel Resolution
Tilted regions on a rotating glass disk displace reflected light to enhance pixel resolution without complex drive circuitry or large lenses.
- Stereoscopic Light Source System Using Single Laser and Rotary Wheel
A stereoscopic light source system uses a single laser, rotary wheel, and TIR prism to output distinct wavebands for projection.
- Prism Array Screen for Front Projectors
Elongated transmissive prisms direct image light to viewers while deflecting ambient light away, enhancing perceived contrast ratios in lit environments.
- Compact Image Projection Apparatus Using Planar Optical Substrate
A projection optical system uses a planar optical substrate to fold the light path and form an intermediate image on a concave mirror.
- Projection Apparatus Beam-Splitting Module Non-Coplanar Imaging
A projection apparatus uses a beam-splitting module to divide an image beam into sub-beams for distinct imaging planes.
- Asymmetric Phosphor Wheel Balancing for Laser Projectors
An asymmetric assembly member balances the rotating phosphor wheel without extra components.
- LCD Projector Lighting Efficiency via Polarized Light Recycling
A brightness enhancement polarizer and quarter wave plate convert reflected light into useful illumination for LCD projectors.