Patent ID: 8550636

Claim:
A high-pressure discharge lamp apparatus, comprising: a lamp unit that comprises a high-pressure discharge lamp with a discharge casing with a pair of electrodes, the high-pressure discharge lamp is fixed to a reflector, such that a central axis of the high-pressure discharge lamp coincides with an optical axis of the reflector wherein light emitted is directed through an opening in the reflector; a first rotating body has an annular cross-section, and is attached to the reflector at a vicinity of the opening thereof, such that a center of the first rotating body is located on the optical axis; a first rotation supporting unit supports the first rotating body rotatably on the center thereof; a rotation driving unit drives the first rotating body to enable the lamp unit to rotate in one direction about the central axis; a feeding unit feeds electric power to the high-pressure discharge lamp having a first feeding member, wherein the first rotating body has a first conductive portion that extends around an axis of the first rotating body, to which a first electrode of the high-pressure discharge lamp is electrically connected, and the first feeding member is electrically connected to the first conductive portion; a second rotating body that has an annular cross-section, and is attached to the reflector at a vicinity of a base of the high-pressure discharge lamp, such that a center of the second rotating body is located on the optical axis; and a second rotation supporting unit that supports the second rotating body rotatably on the center thereof, and the feeding unit that having a second feeding member, wherein the second rotating body has a second conductive portion that extends around an axis of the second rotating body, to which a second electrode of the high-pressure discharge lamp is electrically connected, and the second feeding member is electrically connected to the second conductive portion.