Abstract: A projector apparatus, including: a light source including a high-pressure discharge lamp having a plurality of ventilation holes; an optical unit having a liquid crystal panel for optically modulating to light emitted from the light source in response to an input video signal; a ventilation fan; and cooling means for cooling the light source by blowing cooling-air blown from the ventilation fan to at least the light source, wherein a cooling-air ventilation inlet facing one ventilation hole of the high-pressure discharge lamp is formed at an upper position of a lamp case, which holds and fixes the high-pressure discharge lamp having the plurality of ventilation holes and positions and fixes the optical unit, a cooling-air ventilation outlet facing another ventilation hole of the high-pressure discharge lamp is formed at a lower position of the lamp case, and a tray is provided under the cooling-air ventilation outlet.

Abstract: A projector unit is disclosed wherein a replacing operation of a light source is simplified and the quality of an image can be assured advantageously. A locking mechanism is formed from engaging pins, engaging pawls and a spring. The engaging pins are provided on a housing portion of a body section. The engaging pawls are each supported at a bearing portion intermediate in an extending direction thereof for rocking motion on a light source section housing by a pivot. The engaging pawls have engaging grooves provided thereon for engaging with the engaging pins in a state wherein mating portions of the light source section housing and the body section housing are mated with each other. The spring extends between a rear face of an intermediate divisional member of the light source section housing and a connecting piece of the engaging pawl.

Abstract: A projector apparatus, including: a light source including a high-pressure discharge lamp having a plurality of ventilation holes; an optical unit having a liquid crystal panel for optically modulating to light emitted from the light source in response to an input video signal; a ventilation fan; and cooling means for cooling the light source by blowing cooling-air blown from the ventilation fan to at least the light source, wherein a cooling-air ventilation inlet facing one ventilation hole of the high-pressure discharge lamp is formed at an upper position of a lamp case, which holds and fixes the high-pressure discharge lamp having the plurality of ventilation holes and positions and fixes the optical unit, a cooling-air ventilation outlet facing another ventilation hole of the high-pressure discharge lamp is formed at a lower position of the lamp case, and a tray is provided under the cooling-air ventilation outlet.

Abstract: A projection panel assembly is mounted on a casing for holding a screen so as to mount a front panel on the viewing side of the screen. The projection panel assembly includes a fixing portion for directly fixing the front panel and a supporting portion for movably supporting the front panel via the fixing portion. This makes it possible to absorb any distortion of the front panel due to thermal expansion and contraction.

Abstract: A projection panel assembly is mounted on a casing for holding a screen so as to mount a front panel on the viewing side of the screen. The projection panel assembly includes a fixing portion for directly fixing the front panel, and a supporting portion for movably supporting the front panel via the fixing portion. This makes it possible to absorb the distortion of the front panel or the like due to expansion and contraction.