本发明涉及一种操作（1），具有多个透射光束的光帘的方法（6）发射发射器（7），其具有发射器单元（3），并与从发射器单元（3）的电去耦，多个接收器（10） 具有接收器单元（5），其中在每种情况下一个发送器（7）与一个接收器（10）形成所述个体波束轴的波束轴线和发射器（7）和接收器（10），用于在监视区域周期性地单独地被顺序地激活检测对象。 活化的发射器（7）的发光透射光束（6）在至少一个脉冲组电赋能脉冲的形式，并且根据一个波束轴的光网格的所有波束轴的同步（1）。 由发射的脉冲光束轴的发射器（7）的不同之处的至少一个参数在脉冲的宽度的形式，或者在进一步光束轴的脉冲的脉冲之间的中断或间隙的形式。

The invention relates to a method of operating a light curtain (1) having a a plurality of transmitted light beams (6) emitting transmitters (7) having transmitter unit (3) and with a from the transmitter unit (3) is electrically decoupled, a number of receivers (10) having receiver unit (5), wherein in each case a transmitter (7) with a receiver (10) forms a beam axis and the transmitter (7) and receiver (10) of the individual beam axes for detecting objects in a monitoring area cyclically individually are activated sequentially. An activated transmitters (7) emitting transmitted light beams (6) in the form of at least one pulse group forming pulses and based on a beam axis, the synchronization of all beam axes of the light grid (1). By the transmitter (7) of the beam axis emitted pulses differ in at least one parameter in the form of the widths of the pulses or in the form of breaks or gaps between the pulses of the pulses of the further beam axes.