Light source unit and projector

摘要

A light source unit includes a light source, a connecting conductor configured to supply power to the light source, a light source housing configured to accommodate the light source and the connecting conductor. At least part of the connecting conductor is provided on a gripping portion side of the light source housing, and the light source housing includes a lid-side forming portion configured to cover the gripping portion side of the light source and the connecting conductor, and a flow channel configured to guide cooling air to a cover portion of the lid-side forming portion.

主权项

1. A light source unit comprising:
a light source; a connecting conductor configured to supply power to the light source; a light source housing configured to accommodate the light source and the connecting conductor, and including a gripping portion; a main flow channel configured to allow the cooling air to flow to the light source; and a reflector configured to reflect light emitted from the light source, wherein the light source housing includes:
a lid-side forming portion configured to cover the light source and the gripping portion side of the connecting conductor and including a cover portion configured to project in a same direction of the gripping portion,an outflow port configured to allow the cooling air to go out toward the lid-side forming portion, anda flow channel configured to guide a part of cooling air flowing through the main flow channel to the outflow port, and wherein;
the cooling air flowed out from the outflow port mainly cools the cover portion,the light source includes a light-emitting tube having a pair of electrodes and a pair of lead wires configured to be electrically connected to the pair of electrodes, respectively,one of the pair of lead wires is arranged on a side of the reflector where the light is reflected,the connecting conductor includes a first connecting conductor to be connected to the one of the lead wires and a second connecting conductor to be connected to the other lead wire, andpart of the first connecting conductor is arranged at the position where the cooling air flowing out from the outflow port of the light source housing passes.