Panasonic Intellectual Property Management Co., Ltd.

Kenji Maruyama

Toshifumi Ogata

Katsushi Seki

Makoto Morikawa

Shinichi Kitaoka

In a light source unit, a high-pressure discharge lamp includes a first and a second external electrode to emit light as electric power is supplied thereto through a first and a second power supply line, a concave reflection mirror, which reflects the light, has an opening at the center thereof to pass one end of the high-pressure discharge lamp therethrough, and a base holding the one end of the high-pressure discharge lamp to allow the first power supply line to be connected to the first external electrode. Further, there are a reinforcing member covering at least a part of a rear surface of the concave reflection mirror, and a restraint member being held between the rear surface and the reinforcing member to restrain a movable range of the second power supply line. The restraint member makes contact with a part of the second power supply line.

Light source unit and projector including the same

A lamp according to the present invention includes: a line portion which blocks a part of light proceeding from a light emitting unit in a direction perpendicular to a tube axis direction; and a raised portion which blocks the light proceeding from the light emitting unit in the direction perpendicular to the tube axis direction that is not blocked by the line portion. The raised portion has an end portion having a linear shape in the tube axis direction, the end portion being an end portion of a section of the raised portion that blocks light.

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Osaka, Japan

Kenji Maruyama