The kit of spatial light modulators (SLM) is intended for modulating the phase and amplitude of light. At He-Ne laser wavelength the maximum modulation of phase is about 2.9 pi. The maximum modulation of amplitude depends on the quality of polarizers and other parameters. The size of a pixel is 8 microns. The size of the display is 1920 x 1080 pixels. The refresh rate is 60 Hz.