为了确保的角度测量系统的增加的测量精度和成本效益的制造中的角度测量系统（10），用于确定旋转角度（.phi..sub.i）设置于旋转轴（W）是可用的，包括光发射器（1），用于发射光束（1a）中， 透明调制器（2），用于调制发射并且由所述调制器（2）通过所述光束（1A），其中，所述调制器在所述轴（W）被安装成使得在正常的调制器（2）（的角度（2） α）具有非零到轴（W）的旋转轴线（A），至少一个用于接收（在接收器3），移动所述光点接收器（3）（P1，... PI）和用于输出相应的接收器信号，其中 所述接收器（3）包括一个光敏表面和检测的光的入射点（P1，... PI）ortauflösend在2-尺寸，并且用于评估所述接收器信号，并且确定评估单元 旋转的角度（.phi..sub.i），其中所述评估单元被设计以这样的方式从所述光点的位置（P1，... PI）旋转到接收器的相应的角度评估单元（3）（.phi..sub.i）轴（W）确定的。

In order to ensure an increased measuring accuracy and cost-effective manufacture of an angle measuring system is an angle measuring system (10) for determining a rotation angle (.phi..sub.i) is provided to a rotating shaft (W) is available, comprising a light transmitter (1) for emitting a light beam (1a), a transparent modulator (2) for modulating the emitted and by the modulator (2) through the light beam (1a), wherein the modulator (2) on the shaft (W) is mounted such that a normal of the modulator (2) (an angle α) has non-zero to a rotation axis (a) of the shaft (W), at least one receiver (3) for receiving a (on the receiver 3), moving the light spot (P1, ... Pi) and for outputting a corresponding receiver signal, wherein the receiver (3) comprises a photosensitive surface and the incident point of light (P1, ... Pi) detected ortauflösend in 2-dimensions, and an evaluation unit for evaluating the receiver signal and determining the angle of rotation (.phi..sub.i), wherein the evaluation unit is designed in such a way that the evaluation unit from a position of the light spot (P1, ... Pi) the corresponding angle of rotation to the receiver (3) (.phi..sub.i) of the shaft (W) determined.