| 摘要 |
Exemplary embodiments provide an optical device, optical device manufacturing method, and projector that can easily position an optical modulation element in a predetermined position. The optical device includes an optical modulation element holder to hold an optical modulation element thereon so as to be able to transfer heat to cooling fluid within cooling chambers, a plurality of fluid circulation members connected in communication to the cooling chambers, and a cooling fluid relay section that, disposed at a predetermined position relative to the optical axis of a luminous flux emitted from a light source, relays cooling fluid transferred via the plurality of fluid circulation members. Out of the plurality of fluid circulation members, fluid circulation members whose one-side end are connected in communication to the cooling chambers of the optical modulation element holder are formed so that the another-side end thereof protrudes toward a luminous flux emergent side. Insertion holes capable of receiving therethrough the another-side end of the fluid circulation members are formed in a cooling fluid relay section.
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