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US 8,025,412 B2Granted
Pump unit and projector using same
AssigneeNEC Display Solutions, Ltd.
InventorJunsi Lee
Life of this patent
Estimating the term…
Abstract
A pump unit includes a pump body for discharging compressed air, a communication pipe including an elastic material and having one end fitted into a discharge port, and a pump fixture for fixing part of the communication pipe except for the one end fitted into the discharge port. The pump body is fixed only by the pump fixture.
Claims4
A pump unit comprising:
- a pressure pump that discharges compressed air;
- a communication pipe that comprises an elastic material and that includes one end fitted into a discharge port of said pressure pump;
- and
- a fixture that fixes part of said communication pipe except for the one end of the communication pipe fitted into said discharge port,
- wherein said pressure pump is fixed only by said fixture,
- wherein said fixture comprises:
- a retaining member that includes a first U-shaped holder which conforms to the outside shape of said communication pipe;
- a receiving member that includes a second U-shaped holder which conforms to an outside shape of said communication pipe;
- and
- a fixing unit that fixes said retaining member to said receiving member, and
- wherein said communication pipe is fixed by said first and second holders.
8 more elements
A projector that includes a light source, and an optical system that projects image light generated by spatially modulating light from said light source, said projector comprising:
- a housing that contains said light source and said optical system;
- and
- a pump unit mounted in said housing, said pump unit comprising:
- a pressure pump that discharges compressed air;
- a communication pipe that comprises an elastic material and that includes one end fitted into a discharge port of said pressure pipe;
- and
- a fixture that fixes part of said communication pipe except for the one end of said communication pipe fitted into said discharge port,
- wherein said pressure pump is fixed only by said fixture, and
- at least said light source is cooled down by the compressed air introduced into said housing through said communication pipe.
6 more elements
Dependencies are inferred from the claim text.