Projector
AssigneeSeiko Epson Corporation
InventorsMotoyuki Fujimori, Akitoshi Kuroda, Shinji Haba, Kiyoshi Miyashita, Takeshi Takizawa, Mutsuya Furuhata
Life of this patent
Estimating the term…
Abstract
In a projection display provided with an optical unit, a power source unit, an external case to store the optical unit and the power source unit, a suction opening (75) is formed in one end part of the power source unit, a discharge opening (77) is formed in the other end part, and the suction opening (75) is arranged in the vicinity of an air inlet in the external case. Because the suction opening (75) and the discharge opening (77) are provided, the inside of the power source unit can be independently and efficiently cooled, and the optical unit and the power source unit can be arranged closely to each other.
Claims12
A projector provided with an optical system which optically processes luminous flux emitted from a light source and projects a magnified image on a projection surface by a projection lens, said projector comprising:
- a power source that supplies power to the optical system and the light source, the power source having one end part and another end part;
- an external case that houses said optical system and said power source;
- an air inlet that supplies cooling air from outside of the external case, the one end part of the power source being disposed proximate the air inlet;
- a discharge port that discharges air inside the external case to outside the external case, the discharge port being formed in said external case;
- a suction opening that sucks the cooling air inside said power source, the suction opening being provided in said one end part of the power source;
- a suction fan provided in said suction opening;
- and
- a discharge opening that discharges air inside said power source, the discharge opening being provided on the other end part of said power source,
- wherein said light source is provided between the discharge port formed in said external case and the discharge opening provided in the other end part of said power source, and the air discharged from the discharge opening formed in said other end part is distributed inside said light source and used as the cooling air of said light source.
A projector provided with an optical system which optically processes luminous flux emitted from a light source and projects the magnified image on a projection surface by a projection lens, said projector comprising:
- an approximately L-shaped power source that supplies power to the optical system and the light source, the power source having one end part and another end part;
- an external case said that houses said optical system and said power source;
- an air inlet that supplies cooling air from outside of the external case, said air inlet formed in said external case, the one end part being disposed proximate the air inlet;
- a suction opening that sucks said cooling air into said power source, the suction opening being provided in said one end part of said power source;
- and
- a discharge opening that discharges air in said power source, the discharge opening being provided in said other end part of said power source,
- wherein said power source is arranged adjacent said optical system, and the one end part of the power source being disposed proximate said projection lens.
Dependencies are inferred from the claim text.