Uniformity tape diffuses infrared light from lateral lamps to reduce component count and cost while maintaining touch sensitivity.
A toroidal Fresnel lens expands projection angles by collapsing the second radius of curvature, resolving Petzval blurriness at line image ends.
Movable projector carts with articulating boom arms dynamically align with rotating screens, eliminating manual recalibration time.
A lighting optical system positions its axis away from the projection flux to reduce device bulk.
A reflective spatial light modulator directs image light into a waveguide in-coupler for total internal reflection within an optical assembly.
A retinal projection display device generates multiple complex wavefronts using a multiplexed holographic optical element.
An asymmetric free-shaped-surface lens corrects trapezoidal distortion in oblique projection systems, enabling a compact optical unit with reduced depth.
A projection apparatus uses a curved area to display dynamic stereo images on its outer surface.