LIGHTING DEVICE, PROJECTOR, LIGHT-SOURCE-DEVICE SUPPORTING INSTRUMENT, AND LIGHT SOURCE CARTRIDGE

摘要

A lighting device includes a supporting section configured to support a light source device unit, a fan housing section in which an outflow port for causing the air discharged by a cooling fan to flow out is formed, and a circulating device supported by the light source device unit. The outflow port is opened in a direction along a second direction. The light source device unit includes an inflow port opened to a side opposed to the outflow port and a channel for leading the air flowing in from the inflow port to a light source. The circulating device includes a moving section disposed between the light source device unit and the fan housing section in a predetermined position, a ventilation hole for causing the outflow port and the inflow port to communicate being formed in the moving section, and an urging section configured to urge the moving section.

主权项

1. A lighting device comprising:
a light source device unit including a light source; a supporting section configured to support the light source device unit to be capable of sliding from a first position to a second position, which is a predetermined position of the light source device unit, in a first direction; a cooling device including a cooling fan and an outflow section having formed therein an outflow port from which air emitted from the cooling fan flows out; and a circulating device supported by the light source device unit or the outflow section and configured to circulate, in the second position, the air flowing out from the outflow port to the light source device unit, wherein the light source device unit includes an inflow port opened in a direction along a second direction crossing the first direction and a channel that leads the air flowing in from the inflow port to the light source, the outflow port is opened to a side opposed to the inflow port of the light source device unit in the second position, and the circulating device includes:
a moving section disposed between the light source device unit and the outflow section in the second position, a ventilation hole for causing the outflow port and the inflow port to communicate being formed in the moving section; andan urging section configured to urge, in the second direction, the moving section in a direction away from the light source device unit or the outflow section that supports the circulating device.