The Digital Micromirror Spatial Light Modulator is an electronically input, optically output micro-electro-mechanical system (optical MEMS), with its core being the Digital Micromirror Device (DMD). It functions as an optical semiconductor module and a MEMS chip. Each micromirror can independently tilt ±12° around its hinge axis. The DMD chip primarily controls the rotation angle of each micromirror based on different digital signals transmitted to the CMOS chip by the front-end circuit (the deflection of micromirrors is individually controlled through binary information from the underlying CMOS control circuit and mirror reset signals, enabling digital modulation of the optical field). This selective reflection directs incident light to the imaging plane for image formation. Since DMD micromirrors use aluminum-coated reflective surfaces that hardly absorb energy and are controlled via CMOS technology, they far surpass other spatial light modulators in terms of modulation speed, precision, energy efficiency, and overall performance. LBTEK offers a variety of ultra-high-speed digital micromirror spatial light modulators with different resolutions, working wavelengths, and memory capacities. They are widely applied in spectral analysis, maskless lithography, 3D measurement, naked-eye 3D display, holographic imaging, compressed sensing, biological microscopy, SLA 3D printing, machine vision, and so on.