Optical component housing, and projector using the same

摘要

An optical component housing is provided which is easy to form and in which dimensional accuracy of an optical component positioning portion is easily ensured. The optical component housing for housing an optical component constituting an optical system is made of metal and has an optical component positioning portion for positioning an optical component. The optical component positioning portion is formed by thixomolding using a metal material, and includes first support portions for supporting the light incident surface or the light emitting surface of the optical component. A portion of a side plate in contact with the first support portions is provided with portions previously removed that are formed by inserting inserts in a mold. Since the previously removed portions are formed before upper and lower molds of the mold are opened during molding, it is possible to prevent the optical component positioning portion from clinging to the mold, and to ensure dimensional accuracy of the optical component positioning portion.