SPATIAL LIGHT MODULATION DEVICE, PROJECTOR USING THE SPATIAL LIGHT MODULATION DEVICE, METHOD FOR MANUFACTURING FINE-STRUCTURE ELEMENT USED IN THE SPATIAL LIGHT MODULATION DEVICE, AND FINE-STRUCTURE ELEMENT MANUFACTURED BY THE METHOD

摘要

There are provided a spatial light modulation device and a projector capable of obtaining smooth image quality so that an observer does not recognize any light shading portion such as a black matrix. The projector includes a spatial light modulation device (110R) for modulating the incident light according to an image signal and emitting the modulated result and a prism group (210) arranged at the emission side of the spatial light modulation device (110R). The spatial light modulation device (110R) has an opening (230) as a plurality of pixel portions arranged in a matrix and a black matrix (220) arranged between them. The prism group (210) consists of a prism element (211) having at least a refraction surface (212). Light from one opening (230) is introduced into at least a part of the prism group (210). The direction of the refraction surface and the inclination angle Theta are defined so as to introduce an opening image (230P) onto a black matrix portion image (220P) on a screen (116) at a predetermined distance L from the prism group (210).