Patent ID: 7219438

Claim:
An apparatus for providing a temporary visible image upon a target surface, comprising: at least one laser operative to emit optical energy; a first projection module optically coupled to said at least one laser, said first projection module being dimensioned and arranged to project optical energy received from said at least one laser downwardly onto the target surface; and a suspension system for supporting said first projection module at an elevated location above the target surface and for conveying said first projection module in response to user input commands, said suspension system including a position stabilization system adapted to detect and correct angular deviations relative to a desired orientation of the first projection module, whereby said first projection module may be conveyed from a first, position-stabilized location from which an image can be projected upon a first region of the target surface to a second, position-stabilized location from which an image can be projected upon a second region of the target surface, wherein said first projection module includes a lens dimensioned and arranged to spread the optical energy received from said at least one laser into a first straight line extending between opposite lateral sides of the target surface, and wherein said at least one laser is operative to emit a sufficient amount of optical energy such that said first projection module projects therefrom an image that is visible during daylight ambient lighting conditions.