Abstract: Laminated liquid crystal films may be processed using a laser beam to form tear lines. Tear lines create a weak line in a liquid crystal film along which a portion of a PET layer may be torn from the whole PET layer. Tear lines are made by the precise volumetric removal of PET material from a portion of a PET layer by burning away the PET material using the laser beam. The form, extent and depth of penetration of a laser beam into a PET layer may be precisely controlled by adjusting the power and/or scan speed of the laser beam relative to the laminated liquid crystal film on which the PET layer is positioned. In this manner, a desired volume of PET material may be removed from the PET layer.

Abstract: Physical and/or sensory skills may be trained by varying the quantity of sensory information available to an individual, the quality of sensory information available to an individual, and/or the difficulty of physical training performed by an individual. The difficulty of training may be varied using eyewear that alters the quality/quantity of visual information available and/or that provide a display that instructs the individual training to increase/decrease the difficulty of training tasks. The difficulty of training may be varied in response to measurements of the physiology and/or performance of an individual training.

Abstract: Physical and/or sensory skills may be trained while an individual wears eyewear that alters the quality/quantity of visual information available to the individual. Sensor may measure performance metrics and/or physiological metrics during training During a recovery period, an individual may receive visual information with less alteration of the quality and/or quality of the information.

Abstract: Physical and/or sensory skills may be trained by varying the quantity of sensory information available to an individual, the quality of sensory information available to an individual, and/or the difficulty of physical training performed by an individual. Eyewear may control the quantity/quality of visual information available to an individual and may provided an integrated heads-up display that communicates instructions to vary the difficulty of training tasks. The difficulty of training may be varied in response to sensor measurements descriptive of the physiology and/or performance of an individual training.