Projector with thermally managed optical path shifting module and thermoelectric panel cooling

Abstract

A projector includes first to third panel modules, a light combiner, a projection optics module, and an optical path shifting module that shifts the optical path of projection image light enters the projection optics module. The optical path shifting module includes an optical path changing member, a first actuator that swings the optical path changing member around a first swing axis, and a second actuator that swings the optical path changing member around a second swing axis. The first panel module includes a liquid crystal panel for first light, a heat diffuser for first light, a thermoelectric conversion device for first light, and a cooler for first light. The first actuator and the second actuator are each disposed at a position separate from a side end facing the optical path shifting module out of the side ends of the thermoelectric conversion device for first light.