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US 6,724,529 B2Granted
Reflection-type projection screens
OwnerHoward Sinkoffinventor
Life of this patent
Estimating the term…
Abstract
A projection screen comprising; a substrate having a generally flat forward surface; a diffusion layer formed of a plurality of generally equally spaced apart concave features forming micro lenses; a layer of reflective material deposited on a rearward facing surface of the diffusion layer; the diffusion layer laminated to the forward facing surface of the substrate so that the layer of reflective material is sandwiched therebetween.
Claims20
A projection screen comprising:
- a substrate defining a flat forward surface;
- a diffusion layer formed of a plurality of generally equally spaced apart concave features forming micro lenses;
- a layer of reflective material deposited on a rearward facing surface of the diffusion layer;
- and
- the diffusion layer having a thickness greater than one one-thousandth of an inch (one mil) and being laminated to the forward surface of the substrate so that the layer of reflective material is sandwiched there between.
2 more elements
A projection screen comprising:
- a support material having a forward surface;
- a diffusion layer defining a plurality of micro lenses and having a thickness greater than one one-thousandth of an inch (one mil);
- a reflective film deposited on an inward facing surface of the diffusion layer;
- the micro lenses being comprised of a plurality of equally spaced apart circular convex projections;
- and
- the reflective film being deposited on the diffusing layer so as to conform to the contours of the inward facing surface of the diffusing layer including the micro lenses.
3 more elements
A projection screen produced by the steps of:
- providing a substrate defining a flat forward surface;
- providing a diffusion layer that includes a plurality of generally equally spaced apart concave features forming micro lenses;
- disposing a reflective material onto a rearward facing surface of the diffusion layer;
- and
- laminating the forward surface of the substrate to the layer of reflective material such that the layer of reflective material is sandwiched between the diffusion layer and the substrate.
2 more elements
A method for fabricating a projection screen comprising:
- providing a substrate defining a flat forward surface;
- providing a diffusion layer that includes a plurality of generally equally spaced apart concave features forming micro lenses;
- disposing a reflective material onto a rearward facing surface of the diffusion layer;
- and
- laminating the forward surface of the substrate to the layer of reflective material such that the layer of reflective material is sandwiched between the diffusion layer and the substrate.
2 more elements
Dependencies are inferred from the claim text.