Magnetizable particles forming light controlling structures and methods of making such structures

A method of making an optical film for control of light comprising:

• providing a substrate, a first mixture including a first plurality of magnetizable particles dispersed in a first resin and a second mixture including a second plurality of magnetizable particles dispersed in a second resin;
• assembling the first plurality of magnetizable particles into a first desired structure for the control of the light by rotating modulation of at least a first magnetic field relative to the first plurality of magnetizable particles;
• vitrifying the first resin with the first plurality of magnetizable particles assembled in the first desired structure;
• assembling the second plurality of magnetizable particles into a second desired structure for the control of the light by rotating modulation of at least a second magnetic field relative to the second plurality of magnetizable particles;
• and
• vitrifying the second resin with the second plurality of magnetizable particles assembled in the second desired structure;
• wherein the first resin and the second resin have a different composition and are vitrified using a different vitrification technique.

A light control film, comprising:

• a substrate;
• a first layer coupled directly or indirectly to the substrate, comprising a first mixture of a first optically clear resin and a first plurality of magnetizable particles, wherein the first plurality of magnetizable particles comprises a first desired structure;
• and
• a second layer coupled directly or indirectly to the first layer, comprising a second mixture of a second optically clear resin and a second plurality of magnetizable particles, wherein the second plurality of magnetizable particles comprise a second desired structure;
• wherein the first plurality of magnetizable particles have a shared first orientation with respect to the substrate and the second plurality of magnetizable particles have a shared second orientation with respect to the substrate, wherein the shared first orientation and shared second orientation are substantially different from each other;
• and wherein the first layer and second layer are disposed such that a same light is at least partially transmitted through the first layer and the second layer.