Light source unit and projector

摘要

A light source unit including: a light source; a reflector configured to reflect light emitted from the light source; a light source housing configured to accommodate the light source and the reflector, and including an inflow port through which cooling air enters, and a first flow channel and a second flow channel guiding the cooling air entering from the inflow port to an upper portion and a lower portion of the light source respectively; and a rectifying unit configured to rotate and allow the cooling air entering from the inflow port to flow in the first flow channel, wherein the rectifying unit is provided with an opening configured to allow part of the cooling air entering from the inflow port to flow in the second flow channel.

主权项

1. A light source unit comprising:
a light source; a reflector configured to reflect light emitted from the light source; a light source housing configured to accommodate the light source and the reflector and including:
an inflow port through which cooling air enters,a first flow channel and a second flow channel that guide the cooling air entering from the inflow port to an upper portion and a lower portion of the light source respectively, andan inlet port that guides cooling air to a side portion of the light source; and a rectifying unit configured to rotate and cause the cooling air entering from the inflow port to flow in the first flow channel, wherein
the rectifying unit is provided with an opening configured to cause part of the cooling air entering from the inflow port to flow in the second flow channel,the inlet port is disposed adjacent to the rectifying unit, andthe rectifying unit branches the cooling air in three streams divided between the first flow channel, the second flow channel, and the inlet port, an amount of cooling air in the first flow channel being larger than an amount of cooling air in the second flow channel and an amount of cooling air in the inlet port.