| 摘要 |
Pivoting optical device comprising a first part ( 15 ) and a second part ( 17 ) with optical means which is pivotally movable relative to the first part about a first pivot axis ( 19 ), said optical means defining an optical laser beam path ( 21 ) in the general longitudinal direction of the second part, and further comprising bearing means ( 23 ) comprising the first pivot axis and a point laser source ( 25 ) fixedly connected to the first part for providing a laser beam in the general direction of said second part. According to the invention, the laser source is located in said optical laser beam path in the general longitudinal direction of the second part, and the bearing means present an open center region ( 29 ) so that a laser beam is allowed to pass from the laser source to the second pivotally movable part.
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