Projectors TRIZ Cases

Distance and acceleration sensors replace warped camera-based measurement to improve keystone correction accuracy in ultra short throw projection.

A beam combiner and loop guide merge fluorescence and laser beams into one compact projection path, reducing optical complexity and boosting luminance.

A rib-guided sliding cover seals the projector lens against dust when closed and opens for heat dissipation during use.

A phase-change vapor chamber spreads heat from a compact reflective light modulation element to improve cooling uniformity and radiation efficiency.

A blue laser, PLM, and phosphor replace red and green lasers to cut speckle, improve diffraction efficiency, and boost HDR projection brightness.

A two-stage pointing and feedback approach helps correct projected image position accurately despite shaky hand input.

Flipped multi-wavelength laser layouts and dichroic routing average angular diversity to improve illuminance uniformity and reduce speckle.

Shielding sheets, distributed elastic supports, and cooling holes reduce laser heating at lens contact points and prevent thermal stress damage.

Multiple projectors are jointly optimized to deliver higher peak luminance and deeper blacks while limiting power use and system cost.

Polarization conversion and beam expansion improve white laser beam combining, reducing speckle while raising luminance and projection quality.

A single-piece illumination-aimer optic reduces irreparable offsets, alignment parts, and chassis complexity in multi-projector imaging.

Spatially varying phase and amplitude modulation steers light more efficiently to improve projector resolution, dynamic range, and distortion control.

Two rotating transmissive prisms scan projector light while keeping the beam parallel, avoiding luminance loss, contrast drop, and color unevenness.

An external retarder lets an LCD spatial light modulator avoid PBS bulk while maintaining high contrast across multiple illumination wavelengths.

A negative first lens and grouped optical layout expand HUD field of view, correct aberrations, and support both DLP and LCOS image sources.

Beam expansion and coincident color paths reduce positioning tolerance sensitivity while improving optical efficiency, yield, and color uniformity.

Inclined output surfaces at 40°-58° improve phosphor fluorescence extraction in projector light sources without added angle converters.

Optimized collimating and condensing optics prevent patterned overlap at the fly-eye lens, producing more uniform irradiance.

Adhesive pads, black deposits, and gaskets protect fragile phosphors, limit light diffusion, and keep tiled display panels flat and sealed.

Segmented Fresnel units redirect incident light for more uniform transparent projection while reducing ambient light interference and improving contrast.

Invisible-light-excited phosphors in an optical combiner improve AR color fidelity, brightness uniformity, and resistance to ambient light distortion.

Ambient temperature and brightness feedback adjust TEC cooling and fan speed to prevent projector condensation damage.

Multiple modulated beams are converged onto one image plane to create bright highlights while protecting spatial light modulators and easing thermal load.