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US 7,621,081 B2Granted
Skylight tube with reflective film and surface irregularities
AssigneeSolatube International, Inc.
InventorDavid Windsor Rillie
Life of this patent
Estimating the term…
Abstract
A skylight shaft is coated with a highly reflective film to maximize the amount of light transmitted from the top of the skylight to a room below the skylight. Surface irregularities are formed in the shaft or adhesive that holds the film onto the shaft to diffuse the light and thereby prevent the formation of focal “hot spots” in the room below.
Claims6
A method for making a skylight shaft, comprising the acts of:
- providing a flat substrate defining at least one segment, the segment having an axially straight outer surface throughout bounded by opposed ends;
- forming surface irregularities at least in the segment;
- rendering reflective at least the segment;
- and
- forming a cylindrical shaft out of the substrate.
2 more elements
A method for making a skylight shaft, comprising the acts of:
- providing a flat substrate defining at least one segment, the segment having an axially straight outer surface throughout bounded by opposed ends;
- forming surface irregularities at least in the segment;
- rendering reflective at least the segment;
- and
- forming a shaft Out of the substrate, wherein the rendering act is undertaken by adhering a reflective film onto the substrate.
2 more elements
Dependencies are inferred from the claim text.