Light diffusing substrate, transmission screen, and display...

Details Light diffusing substrate, transmission screen, and display... Light diffusing substrate, transmission screen, and display...

2006-01-10

2006-01-10

Koval, Melissa J (Department: 2851)

Optics: image projectors

Plural projection paths with single light source

C353S082000, C353S082000

Reexamination Certificate

active

06984046

ABSTRACT:
A transmission screen includes a Fresnel lens sheet through which light is projected from a projector to a lenticular lens sheet arranged on a viewer side, as approximately parallel light, and the lenticular lens sheet receiving light passing through the Fresnel lens sheet, and emitting the approximately parallel light while horizontally widening, by a group of cylindrical lenses which are horizontally in parallel, wherein in at least one of the Fresnel lens sheet and the lenticular lens sheet, on a surface of a light diffusing substrate, in which a light diffusing material is dispersed, irregularities which constitute a lens section is formed, and in the light diffusing substrate, dispersion density of the light diffusing material differs in at least two layers in the thickness direction.

REFERENCES:
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Merriam-Webster's Collegiate Dictionary, Tenth Edition, copyright 2001, p. 651, definition of “laminate”.

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