CPC A01G 7/045 (2013.01) [A01G 9/20 (2013.01); A01G 9/249 (2019.05); H01L 33/06 (2013.01); H01L 33/504 (2013.01); Y02P 60/14 (2015.11)] | 10 Claims |
1. A horticultural lighting fixture configured to emit a spectrum including
a first spectral feature in the form of a spectral peak having its peak wavelength in the blue wavelength range of 425-475 nm,
a second spectral feature in the form of a spectral valley having its base value in the cyan wavelength range of 475-500 nm,
a third spectral feature in the form of a broad-band spectral feature extending throughout the green wavelength range of 500-600 nm, and
a fourth spectral feature in the form of a spectral peak having its peak wavelength in the red wavelength range of 625-675 nm,
wherein
the fourth spectral feature has a maximum relative emission intensity that is the highest relative emission intensity within the spectrum,
the first spectral feature has a highest relative emission intensity that is non-zero but less than the maximum relative emission intensity,
the third spectral feature has a highest relative emission intensity that is non-zero but less than the maximum relative emission intensity, and
the base value of second spectral feature is below all relative intensities of the third spectral feature.
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