| 摘要 |
An optical arrangement for deflecting a light beam includes first and second deflection devices, and a coupling mirror. The first deflection device is rotatable about a first axis using a first rotary drive, and includes two mirrors disposed non-rotatably with respect to each other in an angular position so as to rotate jointly about the first axis. The second deflection device is rotatable about a second axis using a second rotary drive, and includes a third mirror. The coupling mirror deflects the light beam onto the first or second mirror at an angle greater than 45° relative to the surface of the mirror. The first and second axes are perpendicular to each other. The first and a second mirrors rotate jointly about the first axis so that the light beam rotates about a center of rotation located on the second axis.
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