Projector

A projector-type liquid crystal projector comprising a light source;

• a plurality of color separating means for separating light emitted by said light source into beams of blue, green and red colors;
• optical means including image forming liquid crystal light valves and image synthesizing means for synthesizing images for the respective blue, green and red beams which are arranged in an optical path;
• and a projection lens,
• said light source including a light tube and a lamp reflector housed in a lamp housing;
• an exhaust fan being arranged near one side surface of the lamp housing to cover one side surface of the lamp housing and exhaust air at said one side surface,
• a hole for air suction and exhaust being formed in a second side surface of said housing opposed to said one side surface of said housing,
• a lamp fan being positioned further forward than an opening of the lamp reflector and laterally of the lamp housing.

A liquid crystal projector, comprising:

• a light source including a light tube and a lamp reflector housed in a lamp housing;
• a plurality of color separators that separate light emitted by the light source into beams of blue, green and red colors;
• image forming liquid crystal light valves;
• an image synthesizer that synthesizes images for the blue, green and red beams respectively;
• a projection lens;
• an exhaust fan arranged near a first side surface of the lamp housing;
• a lamp fan positioned further forward than an opening of the lamp reflector and laterally of the lamp housing;
• and
• an opening through which air is blown into the lamp housing by the lamp fan, the opening being formed in a second side surface of the lamp housing.

A projector, comprising:

• a light source;
• separation optical elements that separate light emitted by the light source into beams of blue, green and red colors;
• liquid crystal light panels that modulate respective ones of the separated blue, green and red beams;
• a synthesizing optical system that synthesizes the modulated blue, green and red beams;
• a projection lens that receives the synthesized light from the synthesizing optical system;
• a chassis having a bottom member, wherein the separation optical elements, the liquid crystal light panels and the synthesizing optical system are secured so as to be constrained against movement relative to the bottom member;
• and
• an outer case to which the chassis is secured.

A projector comprising:

• a light source including a light tube and a lamp reflector housed in a lamp housing;
• separation optical elements that separate light emitted by the light source into beams of blue, green and red colors;
• liquid crystal light panels that modulate respective ones of the separated blue, green and red beams;
• a synthesizing optical system that synthesizes the modulated blue, green and red beams;
• a projection lens that receives the synthesized modulated light from the synthesizing optical system;
• an exhaust fan arranged near a first side surface of the lamp housing;
• a lamp fan positioned further forward than an opening of the lamp reflector and laterally of the lamp housing;
• and
• an opening through which air is blown into the lamp housing by the lamp fan, the opening being formed in a second side surface of the lamp housing.

A projector, comprising:

• a lamp housing having first and second side surfaces;
• a light source including a light tube and a lamp reflector housed in the housing;
• a light valve that modulates light emitted by the light source;
• a projection lens that receives the modulated light from the light valve;
• an exhaust fan arranged near the first side surface of the lamp housing;
• a lamp fan positioned further forward than an opening of the lamp reflector and laterally of the lamp housing;
• and
• an opening through which air is blown into the lamp housing by the lamp fan, the opening being formed in the second side surface of the lamp housing.