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US 2018/0320850 A1Published application
High Efficiency Daylighting Structure
AssigneeSerraLux Inc.
InventorMARK E. GARDINER
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AssigneeSerraLux Inc.
InventorMARK E. GARDINER
Estimating the term…
A high efficiency daylight directing structure for application on fenestration deploys closely spaced macroscopic bars of transparent resin to eliminate different forms of glare. The spaced apart surfaces provide for efficient reflection of selective incident light, by TIR or metallic surfaces, via the ultra-smooth native surfaces from a mold or casting process. A close spacing is readily obtained in various attachment methods to boost efficiency. The fabrication method allows selective deposition of absorbing layers, such as by of painting/printing between alternating native optical surface to provide one way transparency at high angles of incidence. The bars are supported on at least one common planar surface by transparent support member with an optical quality adhesive material filling any imperfection in the bars common planar surface that form in fabrication.
A daylighting structure comprising:
The daylighting structure according to claim 2 in which the adhesive material fills optical imperfections of the first side of the bars that is connected to the transparent planar support member.
A slat for assembly into a louver assembly for variable light re-direction, the slat having an aspect ratio of at least about 6 and a plurality of spaced apart reflective surfaces with a pitch of at least about 500 microns.
The slat for assembly into a louver assembly for variable light re-direction according to claim 16 wherein the reflective surface are TIR surfaces.
The slat for assembly into a louver assembly for variable light re-direction according to claim 17 wherein the reflective surface have an aspect ratio of the pitch of the reflective surface to the height of the reflective surface of at least about 1.5.
The slat for assembly into a louver assembly for variable light re-direction according to claim 16 and in which the edges of the reflective surfaces have a radius of curvature of less than about 2% of the pitch spaced apart reflective surfaces.
The slat for assembly into a louver assembly for variable light re-direction according to claim 16 in which the spaced apart reflective surfaces are parallel to each other.
The slat for assembly into a louver assembly for variable light re-direction according to claim 16 and in which the adjacent spaced apart reflective surfaces have at least one of a triangular shape, a symmetric V-shape and an asymmetric V-shape.
The slat for assembly into a louver assembly for variable light re-direction according to claim 21 wherein the slat has see-through visibility and the reflective surface are TIR surfaces.
The slat for assembly into a louver assembly for variable light re-direction according to claim 16 the slat having an aspect ratio of at least about 12.
The slat for assembly into a louver assembly for variable light re-direction according to claim 23 the slat having an aspect ratio of at least about 24.
Dependencies are inferred from the claim text.