Patent ID: 11966042
Assignee: ADLENS LTD
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 17:
18. An augmented reality display unit comprising front and rear variable focusing power compression liquid lens assemblies in mutual optical alignment on an optical axis, a transparent waveguide display interposed between the front and rear liquid lens assemblies and a selectively operable adjustment mechanism for simultaneously adjusting the focusing powers of the front and rear compression liquid lens assemblies in a mutually inverse manner; wherein each of the front and rear compression liquid lens assemblies is configured to store elastic potential energy when its absolute focusing power is increased and to release elastic potential energy when its absolute focusing power is decreased; and wherein the adjustment mechanism couples the front and rear compression liquid lens assemblies together such that elastic potential energy released by one of the compression liquid lens assemblies when its absolute focusing power is decreased drives the adjustment mechanism to increase the absolute focusing power of the other compression liquid lens assembly.