Projection screen for rear projection television set
AssigneeSamsung Electronics Co., Ltd.
InventorsJong-bae Park, Chang-wan Hong
Life of this patent
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Abstract
A projection screen for a rear projection television set includes a Fresnel lens for focusing incident image light so as to center on an optical axis of the projection screen, and an optical diffusion member including a lenticular lens portion for diffusing the image light received from the Fresnel lens, wherein the external surface of the optical diffusion member is made of glass. The projection screen provides a wider angle of view compared with the Fresnel lens made of acryl and is resistant to scratching or breakage.
Claims6
A projection screen for a rear projection television set, said projection screen comprising:
- a Fresnel lens for focusing incident image light so as to center on an optical axis of said projection screen;
- and
- an optical diffusion member including a lenticular lens portion for diffusing the image light received from said Fresnel lens, wherein an external surface of said optical diffusion member is made of glassy,
- wherein said glass is a reinforced glass material.
A projection screen for a rear projection television set, said projection screen comprising:
- a Fresnel lens for focusing incident image light so as to center on an optical axis of said projection screen;
- and
- an optical diffusion member including a lenticular lens portion for diffusing the image light received from said Fresnel lens, wherein an external surface of said optical diffusion member is made of glass,
- wherein said Fresnel lens and said optical diffusion member are incorporated by being pressurized and molded together with a thermosetting resin sandwiched between said lenticular lens portion and said Fresnel lens.
Dependencies are inferred from the claim text.