a laser projection system comprising a laser source system configured to emit coherent light , an optical integrating system configured to uniformize coherent light it receives , a randomizing optical element configured to spatially move over time in order to temporally randomize the phase , angle or spatial location of coherent light it receives , an image forming system configured to interact with laser light that has been both uniformized by the optical integrating system and randomized by the randomizing optical element , thereby forming a laser light image , and a projection system configured to project the laser light image onto a viewing screen .