| 摘要 |
An imaging system (100) for imaging an object onto an image sensor (112) is proposed, which has a front side (102) facing the object and a rear side (104) facing away from the object, said rear side being arranged behind the front side (102) as viewed from the object. Furthermore, the imaging system (100) has a light entrance device (200) at the front side (102), through which light coming from the object can enter into the imaging system (100). In this case, the light traverses the beam path (120) between object and image sensor (112). At least one first and one second optical element (114, 202) are likewise present, which are arranged at the rear side in such a way that they can influence the beam path (120). The light entrance device (200) has an electrically switchable liquid crystal element (300), which deflects the beam path (120; 204) at at least one first angle (322) and a second angle (324), which is different from the first, depending on the electrical switching state. A discretely switchable focal length change is realized by this electrically effected change in the beam path (120, 204). |
