DAYLIGHT REDIRECTING WINDOW COVERING
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United States of America Patent
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Issued Date -
Apr 11, 2019
app pub date -
Dec 4, 2018
filing date -
Jul 25, 2014
priority date (Note) -
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status (Latency Note)
Importance
Abstract
An optically transmissive light directing sheeting and daylight control structures employing the same. The light directing sheeting includes a core light redirecting layer employing TIR surfaces embedded into the sheeting and may further include one or more outer layers having light diffusing surface microstructures. The TIR surfaces intercept and reflect a portion of sunlight propagating through the core layer such that the light directing sheeting partially transmits and partially redirects the sunlight towards a plurality of divergent directions, forming relatively high bend angles.
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International Classification(s)
- F21V:FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES....
- F21Y:INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21L,....
- E06B:FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDING....
- G02B:OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
- A01G:HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, ....
- E04D:ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING ....
- E04F:FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- F21S:NON-PORTABLE LIGHTING DEVICES OR SYSTEMS THEREOF
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