Patent ID: 11913620
Assignee: ZKW GROUP GMBH
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC F | IPC F

Claim 2:
3. The illumination device (1) according to claim 1, wherein the optically active region (4) of the optical device (3) is formed as a liquid crystal lens, which has a liquid crystal layer (4d), in which the scattering elements (4) are accommodated in the form of liquid crystals, wherein the optical axis (x) of the optically active region (4) corresponds to the optical axis of the liquid crystal lens, wherein the orientation of the liquid crystals relative to the optical axis (x) can be adjusted with an electrical voltage that can be applied and varied by the adjustment means (5) in order to change the scattering cross section of the liquid crystals when changing between operating states (B1, B2).