Abstract: Optical switch for adjustable deflection of a light beam from the direction of an input point in the direction of one of several output points. The optical switch includes a switching mirror sensitive to changes in environmental conditions, such as temperature fluctuations. Also included is a rotatable capturing mirror, two beam splitters, and two spatially-resolving detectors. Both mirrors can be rotated around respective axes. A front beam splitter for the partial coupling of the light beam at the front detector that is optically positioned between the capturing minor and the switching mirror, while the back beam splitter for the partial decoupling of the light beam at the back detector is arranged optically between the switching mirror and each of the output positions. A control unit is adapted to control the drive of the switching mirror on the basis of a signal from the back detector.

Abstract: There is provided a scanning mirror device with a microsystem scanning mirror which is mounted rotatably about at least one axis, and a detection module which has a light source which emits a light beam, and a position detector, wherein the detection module directs the light beam onto the scanning mirror from behind, with the result that the light beam is reflected, at the back of the scanning mirror, to the position detector which measures the position of the reflected light beam, from which the rotation angle of the scanning mirror about the at least one axis can be deduced.

Abstract: There is provided a scanning mirror device with a microsystem scanning mirror which is mounted rotatably about at least one axis, and a detection module which has a light source which emits a light beam, and a position detector, wherein the detection module directs the light beam onto the scanning mirror from behind, with the result that the light beam is reflected, at the back of the scanning mirror, to the position detector which measures the position of the reflected light beam, from which the rotation angle of the scanning mirror about the at least one axis can be deduced.