The Pluto phase-only spatial light modulators from Holoeye Photonics AG are based on liquid-crystal-on-silicon microdisplays with high-definition TV 1920 x 1080-pixel resolution, and they provide a phase shift of 2 π up to 1550 nm. For easy integration into optical setups, they are packaged in a compact 121 x 73 x 22-mm housing. Four models are available, covering the 405- to 700-nm, 700- to 900-nm, 900- to 1100-nm and the 1550-nm wavelengths. The programmable devices are supplied with driver software to control settings and image parameters. The software provides easy gamma control to configure the modulator for various applications. Tailored application software enables generation of dynamic optical functions such as gratings, lenses, axicons and apertures, as well as calculation of diffractive optical elements based on user-defined images.