Plant illumination device and method for dark growth chambers
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United States of America Patent
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Nov 17, 2015
Issued Date -
N/A
app pub date -
Feb 8, 2012
filing date -
Mar 17, 2011
priority date (Note) -
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status (Latency Note)
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Abstract
An improved method to produce artificial light for plant cultivation, an illumination device with a semiconductor light emission solution and device suited for plant cultivation in a greenhouse and/or dark growth chamber environment are described. The best mode is considered to be a lighting device with LEDs that produces an emission spectrum similar to the photosynthetically active radiation (PAR) spectrum in a dark growth chamber. The methods and arrangements allow more precise spectral tuning of the emission spectrum for lights used in plant (310, 311) cultivation. Therefore unexpected improvements in the photomorphogenetic control of plant growth, and further improvements in plant production, especially in dark growth chambers, such as basements, are realized.
First Claim
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International Classification(s)
- F21V:FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES....
- H01L:SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICE....
- F21Y:INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21L,....
- F21K:LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- A01G:HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, ....
- F21S:NON-PORTABLE LIGHTING DEVICES OR SYSTEMS THEREOF
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