Patent ID: 9081190
Filing Date: 2015-07-14
Classification: F21V,G02B,G02F,Y10T

Abstract:
1. A transmissive light conditioning film comprising: a transmissive solid substrate; a planar electrode including a first conductor and a second conductor disposed in the same plane, the first conductor including a plurality of conductive extensions and the second conductor including a plurality of conductive extensions, wherein each of the plurality of conductive extensions of the second conductor includes an arcuate region that partially surrounds a conductive extension of the first conductor, the first conductor electrically insulated from the second conductor, the electrode configured to produce an electric field between the first conductor and the second conductor when a potential difference is applied between the first conductor and the second conductor; and a transmissive elastic layer configured to deform and produce regions of refractive power in the transmissive elastic layer in response to the electric field, the regions of refractive power configured to change angular divergence of an input light beam transmitted through the light conditioning film, the regions of refractive power including multiple peaks and valleys; wherein a peak-to-valley deformation of the elastic layer is less than about 10% of a thickness of the elastic layer; wherein the input beam of light is emitted from a collimated light source, the input beam of light emitted from the collimated source having an angular divergence, ±δθ wherein control electronics are configured to apply the potential difference that produces the electric field.