Light source for a display device
View Patent ↗A light source for a display device. The light source comprises a light-producing element, a reflector disposed around at least a portion of the light-producing element, a housing disposed substantially around the reflector, an airflow channel defined adjacent an outer wall of the housing by a separator structure, and an opening in the separator structure to allow airflow between the interior portion of the housing and the airflow channel.
1. A light source for an image display device, comprising:
a light-producing element;
a reflector disposed around at least a portion of the light-producing element; the reflector having front surface facing the light-producing element and a rear surface facing away from the light-producing element;
a housing substantially enclosing the reflector;
an airflow inlet disposed spatially adjacent to a front edge of the reflector, wherein the airflow inlet is positioned to cause a first portion of air flowing into the housing to flow across the front surface of the reflector and a second portion of air flowing into the housing to flow across the rear surface of the reflector;
an airflow channel within the housing defined adjacent an outer wall of the housing by the outer wall of the housing and a separator structure interior the outer wall of the housing; and
an opening in the separator structure to allow airflow between the interior portion of the housing and the airflow channel.
2. The light source of claim 1 , wherein the housing is formed from sheet metal.
3. The light source of claim 1 , wherein the outer wall of the housing is a rear wall.
4. The light source of claim 1 , wherein the separator structure is arranged generally perpendicularly to an optical axis of the light-producing element.
5. An image display device, comprising:
a light source including a reflector and a light-producing element;
the reflector having a front surface facing the light-producing element and a rear surface facing away from the light-producing element;
an airflow inlet positioned to direct a first portion of air across the front surface of the reflector and a second portion of air across the rear surface of the reflector;
a sheet metal housing including a rear outer wall, the sheet metal housing substantially enclosing the light source; and
an airflow channel at least partially defined by the rear outer wall and a separator structure disposed within the sheet metal housing and located spatially adjacent to the rear outer wall.
6. The image display device of claim 5 , wherein the separator structure is arranged generally perpendicularly to an optical axis of the light-producing element.
7. The image display device of claim 5 , wherein the airflow inlet is disposed spatially adjacent to a front edge of the reflector.