Receiving device for an optical measurement apparatus for capturing objects, light signal redirection device, measurement apparatus and method for operating a receiving device

An optical measurement apparatus for capturing objects in a monitoring region, comprising:

• at least one transmission device for transmitting light signals into the monitoring region;
• at least one receiving device with which the light signals that have been reflected at the objects that may be present in the monitoring region is received;
• and
• at least one control and evaluation device with which the at least one transmission device and the at least one receiving device is controlled and with which the light signals received can be evaluated,
• wherein the at least one receiving device comprises:
• at least one light signal redirection device for redirecting the light signals from the monitoring region to at least one receiver of the at least one receiving device, wherein the at least one light signal redirection device has at least one redirection region that acts on the light signals so as to change their direction,
• wherein the at least one redirection region is implemented in, at or on at least one substrate that is transmissive to the light signals,
• the at least one receiver for receiving and for converting the light signals into electric signals, and
• at least one drive device with which the at least one redirection region is set,
• wherein the at least one redirection region of the at least one receiving device has at least one diffractive structure.

A method for operating a receiving device of an optical measurement apparatus for capturing objects in a monitoring region, the method comprising:

• transmitting light signals from the monitoring region onto at least one redirection region of at least one light signal redirection device,
• wherein the at least one redirection region is implemented in, at or on at least one substrate that is transmissive to the light signals;
• changing a direction of the light signals with the at least one redirection region in dependence on an incidence of the light signals;
• and
• directing the light signals to at least one receiver of the receiving device,
• wherein the at least one redirection region is set using at least one drive device, and
• wherein the direction of the light signals is set with the aid of at least one diffractive structure.