Optical path converting optical element ,optical path converter, and optical projector, and image display apparatus using said optical element

摘要

The optical path converting element (31) has two prism arrays (34,37) each having several prisms arranged in a prism arraying direction. Both the prism arrays are placed in such a manner that the prism arraying direction of the prism arrays are parallel to each other. Independent claims are also included for the following: (1) image display apparatus; and (2) optical projector.