System and method for forced cooling of lamp
AssigneeGeneral Electric Company
InventorsAmol Suresh Mulay, Viktor Karoly Varga, Gary Robert Allen, Sairam Sundaram, Svetlana Selezneva, Vijaykumar Mallappa Kannure, Rocco Thomas Giordano
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Abstract
A gas discharge lamp includes an arc envelope and a cooling device. Cooling passage is provided between the arc envelope and the cooling device. An airflow blocking structure is mounted rotatably to the arc envelope. The airflow blocking structure blocks airflow between the cooling device and the arc envelope except for a portion of the passage directed towards a top side of the arc envelope.
Claims25
A gas discharge lamp, comprising:
- an arc envelope;
- and
- a cooling mechanism comprising a structure rotatably mounted relative to the arc envelope, wherein the structure is reorientable in a plurality of different positions of the arc envelope to provide at least one cooling passage.
A system, comprising:
- a lamp having an arc envelope provided inside a reflector;
- a fan;
- an airflow passage disposed between the arc envelope and the fan;
- and
- a structure rotatably mounted relative to the arc envelope, wherein the structure blocks airflow between the fan and the arc envelope except for a portion of the airflow passage directed toward a top side of the arc envelope.
A method of operating a lamp, comprising:
- reducing a temperature differential between a top side and a bottom side of an arc envelope by channeling a cooling medium flow through a structure rotatably mounted relative to the arc envelope towards the top side of the arc envelope, wherein the structure is reorientable in a plurality of different positions of the arc envelope.
A method of manufacturing a lamp, comprising:
- providing an arc envelope inside a reflector;
- and
- providing a cooling mechanism comprising a structure rotatably mounted relative to the arc envelope, wherein the structure is reorientable in a plurality of different positions of the arc envelope to provide at least one cooling passage towards a top side of the arc envelope.
Dependencies are inferred from the claim text.