Real image projection device having plastic curved mirror for improving image and correcting aberrations

摘要: A device using a low-cost plastic curved mirror and several combinations of methods for reducing aberrations to improve real image projection system is provided, so as reduce ghost astigmatism phenomenon. The includes having two different optical surfaces revolution, one on convex surface the other concave surface. may include at least reflector positioned in tilted configuration, an axis does not coincide with viewing axis. beampath between target source neither passes through beamsplitter nor reflected thereby. further circular polarizer circularly polarizing light beam primary path image, eliminating caused by outside sources.