Lensvector is a SiliconValley-based startup developing an electronically tuneable liquid-crystal lens system that can change a beam of light from spot to flood without any moving optics.

Lensvector is a tech spin-out of Laval University’s Center for Optics, Photonics and Lasers in Quebec, Canada.

A liquid crystal-based spot-to-flood adjustment is cool — I can readily imagine how this tech could drastically reduce the size and complexity of theatrical fixtures — but I wonder if they can “steer” the direction of the light, as implied by the X,Y coordinate sliders in their app below?  And I wonder what the optical efficiency is?


According to their site:

There are no pixels.
A “Hidden layer” is used to shape a controllable electrical field.

With our solution, Liquid Crystal (LC) molecules align to a shaped electric field.

The refractive index is different for the long and short axes of Liquid Crystal molecules. Due to these differences, when the molecules align to the shaped field a gradient of refractive index, hence a lens, is created.

Unlike a traditional curved lens with a uniform refractive index, LensVector’s lens is flat. By changing the electric field the strength (or optical power in diopters) of the lens can be changed.

Lens Vector diagram.gif


About Brad Koerner

Venture Manager - Luminous Patterns Philips Lighting
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