PROJECTION DEVICE AND METHOD FOR CONTROLLING PROJECTION DEVICE

摘要

A projection device (10) comprises: a light source (a blue laser (11) and a phosphor wheel (12)); a color wheel (14) for temporally dividing the light from the light source into a plurality of lights of a plurality of hues by a prescribed period; a spatial modulation element (17) having a plurality of pixels and spatially modulating the lights temporally divided by the color wheel (14) by changing the state of the plurality of pixels; and a control unit (19) for switching between (a) a video mode for projecting an image by controlling the spatial modulation element (17) while making the light source emit light as is and (b) an illumination mode for projecting illumination light by setting the state of the plurality of pixels in the spatial modulation element (17) during at least a prescribed period and controlling the emission timing of the light from the light source.