Optical device, projector, and imaging device

Abstract

An optical device includes a plurality of optical elements, a holding member configured to hold the plurality of optical elements, and a partition wall. The first optical element is a lens and disposed in a position closest to an enlargement side out of the plurality of optical elements. The first optical element has an incident surface, a reflecting surface configured to reflect light which enters through the incident surface, and an exit surface configured to emit the light reflected by the reflecting surface. The incident surface and the exit surface are provided to a first surface facing to a reduction side in the first optical element. The partition wall partitions the incident surface and the exit surface.

Dependencies are inferred from the claim text.