| 摘要 |
A hands-free dental or surgical light system ( 10 ) is disclosed which allows the dentist or surgeon to dim and turn a light ( 12 ) on and off by simply moving their head. First and second infrared sensitive switches ( 16, 18 ) are mounted on glasses ( 14 ) worn by the operator. The switches are positioned at different angles so that if the operator moves their head to point the first infrared sensitive switch ( 16 ) at a remotely located infrared source ( 20 ), the first infrared sensitive switch ( 16 ) will be activated to dim the light ( 12 ). Similarly, if the operator moves their head to point the second infrared sensitive switch ( 18 ) at the infrared source ( 20 ), the light ( 12 ) will be turned on and off.
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