Projection type display apparatus and image display system

Abstract

The present invention provides a projection type display apparatus. The projection type display apparatus for enlarging and projecting an image onto a projected plane includes a projection optical unit for projecting image light onto the projected plane, an optical device for dividing light emitted from a light source into image light that travels to the projection optical unit and unnecessary light that travels outside the projection optical unit, a holding member for holding the projection optical unit, and a light receiving member for receiving the unnecessary light, wherein the light receiving member is provided as a member independent of the holding member. Accordingly, a projection typo display apparatus can be realized that is capable of suppressing or reducing a temperature rise in the holding member caused by the incidence of unnecessary light and the deformation thereof caused by thermal expansion and that is capable of preventing a deterioration in the image quality of a displayed image.

Dependencies are inferred from the claim text.