Optical element such as a rear projection screen for an image display device and method of producing same
AssigneeRCA Thomson Licensing Corporation
InventorsSandra K. McClelland, Randall E. McCoy, Dominic S. Rosati, Jr.
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Abstract
An optical element such as a rear projection screen for an image display device comprises at least two substantially rigid sheet members each having a first major surface and a second major surface providing a plane of incidence and a plane of emergence, respectively, through which light is transmitted sequentially. A first sheet member comprises a Fresnel lens, and a second sheet member comprises a lenticular lens array on each of the major surfaces thereof. The plane of emergence on the second major surface of the first sheet member includes the Fresnel lens formed of a radiation curable material. A method of making the Fresnel lens is described.
Claims2
In a rear projection screen for an image display device comprising at least two substantially rigid sheet members each having a first major surface and a second major surface through which light is transmitted sequentially, wherein a first sheet member comprises a Fresnel lens and a second sheet member comprises a lenticular lens array on each of said major surfaces thereof, the improvement wherein said second major surface of said first sheet member includes said Fresnel lens being formed of a radiation curable material.
Dependencies are inferred from the claim text.