2results about How to "Efficient lighting" patented technology

The utility model discloses a LED outdoor lighting lamp with solar charging function, including shell, solar panel, telescopic link, lamp holder and lamp panel. The shell both sides are equipped with side groove, and the top is equipped with upper storage groove, is used for accomodating component. Solar panel is connected in the side groove top through the damping pivot, can flexible rotation adjustment angle receives sunlight and charges. Telescopic link is hollow two -section telescopic, is connected in the upper storage groove through the damping pivot, can adjust height and inclination angle. The lamp holder is installed in the telescopic link top, and the rectangular groove of its four sides is connected through the damping pivot in the lamp panel, and the lamp panel can multi -angle adjustment illumination. There is battery storage electric energy in the shell, and the front is equipped with switch button and electric quantity display panel. The invention has high portability, easy accomodation, quick deployment and high -efficient charging illumination and the like advantages, satisfies outdoor diversification illumination demand.

This invention relates to a DOE-based beam-expanding illumination system for splicing holographic displays, comprising: a laser, a diffractive optical element, a rear lens, and a collimating lens arranged sequentially along the optical path; the laser provides a laser source; the diffractive optical element modulates the laser source wavefront, dividing and shaping the laser source into an M×N two-dimensional array of beam-splitting spots; the rear lens converges and controls the two-dimensional array of beam-splitting spots; the collimating lens collimates the converged beam-splitting spots to obtain M×N collimated illumination spots; and these spots are respectively illuminated onto multiple spatial light modulators arranged in an M×N array, and then synthesized into a complete spliced ​​hologram. This invention employs large-pixel diffractive optical elements with feature sizes in the micrometer range, combined with a lens group, to achieve efficient conversion and beam expansion from a single beam to multiple uniform illumination spots. The system is designed by controlling the output spot intensity distribution, divergence angle, and light energy utilization.