Front projection screen with lenticular front surface
AssigneePhilips Electronics North America Corporation
InventorsStephen Magocs, Scott H. Baker
Life of this patent
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Abstract
A front projection screen is made up of a front portion and a rear portion, the front portion having a front surface lenticular lens array and light scattering particles forming a diffusion region between the front and rear surfaces, and the rear portion having a reflective surface spaced apart from the diffusion region. In use, an incoming ray of projected light traverses the diffusion region and the space between the diffusion region and the reflective surface, before being reflected back through these regions again. Thus, the ray traverses different portions of the diffusion region in different directions, increasing the likelihood that the ray will encounter at least one scattering particle, thus reducing the incidence of speckle.
Claims16
A front projection screen having a front portion and a rear portion, each portion having a front surface and a rear surface, the front portion having light scattering particles defining a diffusion region between the front and rear surfaces, the front surface of the front portion defining a front lenticular lens array, the array comprised of mutually parallel lenticules extending longitudinally across the screen, and the rear portion defining a reflective surface in spaced apart relationship to the diffusion region of the front portion.
Dependencies are inferred from the claim text.