Optical apparatus

An optical equipment comprising:

• first, second and third light valves;
• an air intake opening arranged on one side of said equipment;
• a ventilation device associated with said air intake opening so as to draw in air from outside of said equipment through said air intake opening;
• and
• a ventilation path arranged between an outlet of said ventilation device and said second and third light valves,
• wherein a plurality of partition members which divide said ventilation path into first, second and third air flow paths so as to cool said first, second and third light valves respectively by air from said ventilation device.

An optical equipment having a discharge lamp for supplying light, and a light valve device for projecting said light from said equipment comprising:

• an air intake opening arranged on one side of said equipment;
• a ventilation device associated with said air intake opening so as to draw in air from outside of said equipment through said air intake opening;
• and
• a ventilation path arranged between an outlet of said ventilation device and said light valve device,
• wherein said ventilation path includes a plurality of partition members which divide said ventilation path into first and second air flow paths so as to cool an incoming light side of said light valve device and an outgoing light side of said light valve device respectively by air from said ventilation device.