Method and apparatus for dynamically variable electrical control of light beam reflective liquid crystal devices
AssigneeUniversite Laval
InventorTigran GALSTIAN
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AssigneeUniversite Laval
InventorTigran GALSTIAN
Estimating the term…
A variable reflection mode optical device for controlling properties of reflected light is described. The device includes a light reflecting surface of an array of controllable mirror elements, a layer of dynamically controllable material and an excitation source for generating an excitation field acting on the layer of dynamically controllable material. An electrical drive signal applied to the excitation source causes a change of optical properties in the layer of dynamically controllable material to provide a spatially varying change in light reflection having at least one of a desired phase curvature and a desired amplitude modulation profile.
A beam projector device comprising a light source and a reflector for directing at least a part of a beam emitted from the light source, the reflector comprising a liquid crystal element that is electrically controllable to vary at least one of a beam shape and beam direction of said beam, wherein said device is further characterized by one of:
A reflector for directing at least a part of a beam emitted from a light source, the reflector comprising a liquid crystal element that is electrically controllable to vary at least one of a beam shape and beam direction of said beam, wherein said reflector is further characterized by one of:
Dependencies are inferred from the claim text.