A system and method for forming an optical image having a screen on which is displayed an image which is to be reproduced on an image display plane. The initially identified custom conductivity information is maintained throughout this iterative process. The masking device performs a masking operation on the estimated input signals to thereby produce a plurality of masking signals. The objective function includes a function of time variables, where a time variable is associated with a subsystem. In a third embodiment, the fiber optic strand in run in parallel inside or outside a transparent liquid conduit such as a modified garden hose, a beverage dispenser, or a kitchen faucet to light the conduit and or the spray of the hose in a single or multiple colors.