Projectors TRIZ Cases
- MRI Bore Projector Passive Cooling and EMI Shielding
A finned metal housing passively cools an MRI bore projector while Faraday-cage shielding limits electromagnetic interference in fields up to 3 Tesla.
- Microlens Array Pitch Variation for Controlled Light Diffusion
Pitch variation below 7.5% and 0.50–0.80/μm inflection density balance cutoff characteristics with diffracted bright-spot suppression.
- Projector Light-Guide Spacing for Wire Reliability and Light Efficiency
An optical guide stays clear of the conducting line while remaining within 0.7 mm of the source, preserving light homogenization and wire reliability.
- Prism-Based Virtual Displays With Polarized Viewer Multiplexing
S- and P-polarized beams let one projector route separate or shared images through reflective and transmissive prism surfaces to multiple occupants.
- Photonic Film Segmentation to Reduce Projection Glass Wrinkles
Segmenting the photonic film by spherical ratio helps laminate large-profile glass with fewer edge wrinkles while preserving projection quality.
- Light Uniform Module Sleeve Assembly for Scratch-Reducing Fastening
The sleeve fastens the light uniform column indirectly, reducing scratching during assembly while maintaining firm positioning in a projection device.
- Beam-Splitter Light Guide for Compact Projection Illumination
Beam splitters and a reflecting mirror merge misaligned light sources into one path, improving projection efficiency while simplifying optics.
- Projector Optical Alignment for Low-Distortion 3D Patterns
Camera-based intensity and pattern-center evaluation aligns the emitter array and lens stack to reduce distortion and improve spot homogeneity.
- Optical Switch Combining Dual Projectors for Keystone-Free 2D Projection
Beam combiners merge dual-projector light for 2D mode and separate paths for 3D, reducing keystone artifacts without pixel-warping routines.
- Projector Screen With Inclined Reflectors for Bright-Room Contrast
An absorbing layer, inclined reflectors, and grooved transparent layer reject external light while reflecting projector images without sputtered coatings.
- Tiltable Transparent Plate Optics for Image Resolution and Speckle Reduction
A tiltable transparent plate uses Lorentz-force actuation to shift pixels and diffuse light, improving image resolution while reducing speckle noise.
- Eye-Safe Laser Lighting With Built-In Optical Safety
When phosphor damage could expose direct laser light, polarization optics block the beam without electrical detection circuits.
- Projector Optics With Concave Reflection Surface And Negative-Power Lens
A concave reflection surface and negative-power lens control aberrations and lens protrusion, enabling a smaller-diameter projector at short throw ratios.
- Projection Apparatus Brightness Control With Aperture–Current Mapping
Coordinated aperture diameter and colored-light drive current maintain white balance while adjusting projected-image brightness.
- MEMS Phase Light Modulator for Mechanical-Free Laser Scrolling
MEMS-controlled diffraction surfaces replace mechanical beam scanning, reducing display size and noise while supporting overlapping color modes.
- Light Source Fixing Assembly for Stable Flexible-Board Contact
An abutting element supports the flexible board’s bonding region to stabilize conduction while the fixing element secures both boards.
- Polarization-Selective Projection Optics for Heat and Contrast Control
Polarized light and selective reflection manage image contrast while fans and channels dissipate heat during brightness-varying projection.
- Integrated Lens Retainer for Precise Projection Display Positioning
An integral metal retainer and first shifter reduce interface errors and thermal movement for accurate lens positioning in projection displays.