Video projector
AssigneeSanyo Electric Co., Ltd.
InventorKazuya Minami
Life of this patent
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Abstract
A video projector including an light emitting tube which emits light to display an image, a reflector encompassing the light emitting tube and defining a reflection chamber, a cooling fan which generates a cooling airflow for cooling the light emitting tube, and a duct defining a cooling airflow passage, which includes a bent portion, arranged between the cooling fan and the light emitting tube. An airflow redirection member adjusts the direction of the cooling airflow in the cooling airflow passage. The airflow redirection member includes an open portion, which allows passage of the cooling airflow from the duct into the reflection chamber of the reflector, and a closed portion, which forms stagnation of the cooling airflow in the duct.
Claims9
A video projector comprising:
- an light emitting tube which emits light to display an image;
- a reflector encompassing the light emitting tube and defining a reflection chamber;
- a cooling fan which generates a cooling airflow for cooling the light emitting tube;
- a duct defining a cooling airflow passage, which includes a bent portion, arranged between the cooling fan and the light emitting tube;
- and
- an airflow redirection member which adjusts the direction of the cooling airflow in the cooling airflow passage;
- wherein the airflow redirection member includes an open portion, which allows passage of the cooling airflow from the duct into the reflection chamber of the reflector, and a closed portion, which forms stagnation of the cooling airflow in the duct.
Dependencies are inferred from the claim text.